CA1180146A - Reaction injection molded polyurethanes employing aliphatic amine chain extenders - Google Patents
Reaction injection molded polyurethanes employing aliphatic amine chain extendersInfo
- Publication number
- CA1180146A CA1180146A CA000369030A CA369030A CA1180146A CA 1180146 A CA1180146 A CA 1180146A CA 000369030 A CA000369030 A CA 000369030A CA 369030 A CA369030 A CA 369030A CA 1180146 A CA1180146 A CA 1180146A
- Authority
- CA
- Canada
- Prior art keywords
- average
- aliphatic amine
- amine hydrogen
- component
- equivalent weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6614—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6614—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6618—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2120/00—Compositions for reaction injection moulding processes
Abstract
ABSTRACT
This invention is directed to a process for preparing reaction injection molded polyurethane compo-sitions by reacting (A) a relatively high molecular weight hydroxyl-containing polyol and (B) a chain extender with (C) a polyisocyanate, a polyisothiocyanate or a mixture thereof. The chain extender, component (B), is a mixture comprising (1) at least one of (a) hydroxyl-containing chain extenders which are free of aliphatic amine hydrogen atoms, have an average hydroxyl functionality of from 2 to 4 and have an average hydroxyl equivalent weight of from 30 to 120 or (b) aromatic amine-containing chain extenders which are free of aliphatic amine hydrogen atoms and which contain at least two aromatic amine hydrogen atoms and (2) at least one aliphatic amine--containing chain extender having at least one primary amine group, an average aliphatic amine hydrogen func-tionality of from 2 to 16 and an average aliphatic amine hydrogen equivalent weight of from 15 to 500; and wherein components (A), (B) and (C) are present in quantities such that the weight percent of the theoretical reaction product of the amine hydrogen atoms of component (B-2) with a stoichiometric quantity of component (C) based upon the total weights of components (A), (B) and (C) is from 5 to 25 and the NCX index is from 0.6:1 to 1.50:1 with the proviso that when an NCX trimerization catalyst is also present, the index is up to 5:1.
28,659-F
This invention is directed to a process for preparing reaction injection molded polyurethane compo-sitions by reacting (A) a relatively high molecular weight hydroxyl-containing polyol and (B) a chain extender with (C) a polyisocyanate, a polyisothiocyanate or a mixture thereof. The chain extender, component (B), is a mixture comprising (1) at least one of (a) hydroxyl-containing chain extenders which are free of aliphatic amine hydrogen atoms, have an average hydroxyl functionality of from 2 to 4 and have an average hydroxyl equivalent weight of from 30 to 120 or (b) aromatic amine-containing chain extenders which are free of aliphatic amine hydrogen atoms and which contain at least two aromatic amine hydrogen atoms and (2) at least one aliphatic amine--containing chain extender having at least one primary amine group, an average aliphatic amine hydrogen func-tionality of from 2 to 16 and an average aliphatic amine hydrogen equivalent weight of from 15 to 500; and wherein components (A), (B) and (C) are present in quantities such that the weight percent of the theoretical reaction product of the amine hydrogen atoms of component (B-2) with a stoichiometric quantity of component (C) based upon the total weights of components (A), (B) and (C) is from 5 to 25 and the NCX index is from 0.6:1 to 1.50:1 with the proviso that when an NCX trimerization catalyst is also present, the index is up to 5:1.
28,659-F
Description
~ ~o~
A PROCESS FOR PREPARING REACTION
INJECTION MOLDED POLYURETHANE COMPOS~TIONS
EMPLOYING ALIPHATIC AMINE OE~IN EXTENDERS
Reaction injection molded polyurethane composi-tions are well known in the art as described in a paper entitled "THE BAYFLEX 110 SERIES - THE NEW GENERATION
OF RIM MATERIALS", by W. Ao Ludwico and R. P. Taylor presented at the SOCIETY OF AUTOMOTIVE ENGINEERS PASSENGER
CAR MEETING, Detroit, Michigan, September 26-30, 1977;
a paper entitled "THE PROPERTIES OF HIGH MODULUS RIM
URETHANES", by R. M. Gerkin and F. E. Critchfield pre-sented at the above meeting; British Patent No. 1,534,258 titled "PROCESS FOR THE PRODUCTION OF ELASTOMERIC
POLYURETHANE-POLYUREA MOULDED PRODUCTS ~AVING A COMPACT
SURFACE SKIN" and a book by F. Melvin Sweeny entitled INTRODUCTION TO REACTION INJECTION MOLDING, Technomics, Inc., 1979.
These systems employ, as chain extenders, diols, aromatic amines, cyanoethylated polyoxyalkylene amines and mixtures thereof.
It has been thought that as a general rule the aliphatic amines are too fast to be suitably employed 28,659-F
~ ~0~6 in RIM polyurethane applications. It has now been discovered that certain quantities of aliphatic amines enhance certain properties such as one or more of those selected from, for example, flexural modulus, impact strength, tear strength, and heat resistance can be improved by their use in such RIM polyurethane composi-tions usually without an unacceptable reduction in other properties of the polymer.
The present invention pertains to an improve-ment in a process for preparing reaction injection molded (RIM) polyurethane compositions by reacting (A) a relatively high molecular weight hydroxyl-containing polyol and (B) a chain extender with (C) a polyisocyanate, polyisothiocyanate or mixture thereof characterized in that the chain extender, component (B), is a mixture comprising (l) at least one of (a) hydroxyl-containing chain extenders free of aliphatic amine hydrogen atoms, which have an average hydroxyl functionality of from 2 to 4, preferably from 2 to 3 and most preferably 2 and an average hydroxyl eguivalent weight of from 30 to 120, preferably from 30 to 70 and most preferably from 30 to 50 or (b) aromatic amine-containing chain extenders which are free of aliphatic amine hydrogen atoms and which contain at least 2 aromatic amine hydrogen atoms and (2) at least one aliphatic amine-containing chain extender having at least one primary amine group, an average aliphatic amine hydrogen functionality of from
A PROCESS FOR PREPARING REACTION
INJECTION MOLDED POLYURETHANE COMPOS~TIONS
EMPLOYING ALIPHATIC AMINE OE~IN EXTENDERS
Reaction injection molded polyurethane composi-tions are well known in the art as described in a paper entitled "THE BAYFLEX 110 SERIES - THE NEW GENERATION
OF RIM MATERIALS", by W. Ao Ludwico and R. P. Taylor presented at the SOCIETY OF AUTOMOTIVE ENGINEERS PASSENGER
CAR MEETING, Detroit, Michigan, September 26-30, 1977;
a paper entitled "THE PROPERTIES OF HIGH MODULUS RIM
URETHANES", by R. M. Gerkin and F. E. Critchfield pre-sented at the above meeting; British Patent No. 1,534,258 titled "PROCESS FOR THE PRODUCTION OF ELASTOMERIC
POLYURETHANE-POLYUREA MOULDED PRODUCTS ~AVING A COMPACT
SURFACE SKIN" and a book by F. Melvin Sweeny entitled INTRODUCTION TO REACTION INJECTION MOLDING, Technomics, Inc., 1979.
These systems employ, as chain extenders, diols, aromatic amines, cyanoethylated polyoxyalkylene amines and mixtures thereof.
It has been thought that as a general rule the aliphatic amines are too fast to be suitably employed 28,659-F
~ ~0~6 in RIM polyurethane applications. It has now been discovered that certain quantities of aliphatic amines enhance certain properties such as one or more of those selected from, for example, flexural modulus, impact strength, tear strength, and heat resistance can be improved by their use in such RIM polyurethane composi-tions usually without an unacceptable reduction in other properties of the polymer.
The present invention pertains to an improve-ment in a process for preparing reaction injection molded (RIM) polyurethane compositions by reacting (A) a relatively high molecular weight hydroxyl-containing polyol and (B) a chain extender with (C) a polyisocyanate, polyisothiocyanate or mixture thereof characterized in that the chain extender, component (B), is a mixture comprising (l) at least one of (a) hydroxyl-containing chain extenders free of aliphatic amine hydrogen atoms, which have an average hydroxyl functionality of from 2 to 4, preferably from 2 to 3 and most preferably 2 and an average hydroxyl eguivalent weight of from 30 to 120, preferably from 30 to 70 and most preferably from 30 to 50 or (b) aromatic amine-containing chain extenders which are free of aliphatic amine hydrogen atoms and which contain at least 2 aromatic amine hydrogen atoms and (2) at least one aliphatic amine-containing chain extender having at least one primary amine group, an average aliphatic amine hydrogen functionality of from
2 to 16, preferably from 2 to 12 and most preferably from 4 to 8 and an average aliphatic amine hydrogen equivalent weight of from 15 to 500, preferably from 50 to 200 and most preferably from 80 to 150 and wherein components (A), (B) and (C) are present in quantities such that the weight percent of the theoretical reaction 28,659-F -2-3l3gV~4~
product of the amine hydrogen atoms of component (B-2) with a s~iochiometric quantity (one NC0 or NCS group for each aliphatic amine hydrogen) of component (C) based upon the total weight of components (A), (B) and (C) is from 5 to 25, preferably from 6 to 20 and most preferably from 6 to 16; and wherein the NCX index is from 0.6:1 to 1.5:1, preferably rom 0.7:1 to 1.25:1 and most preferably from 0.8:1 to 1.10:1 with the proviso that when an NCX trimerization catalyst is also present the index is up to 5:1.
The term NCX index is the ratio of the total number of NC0 and/or NCS groups to the total number of active hydrogen atoms contained in the foxmulation.
The relatively hiyh molecular weight hydroxyl--containing polyols which can be employed herein are beneficially those polyether and polyester polyols which are free of active amine hydrogen atoms and which have an average hydroxyl functionality of from 2 to 8, preferably from 2 to 4 and most preferably from 2 to 3 and an average hydroxyl equivalent weight of from 500 to 5000, preferably from 1000 to 3000 and most preferably from 1500 to 2500 including mixtures thereof.
Suitable relatively high molecular weight polyether polyols which can be employed herein include those which are prepared by reacting an alkylene oxide, halogen substituted or aromatic substitued alkylene .
oxide or mixtures thereo~ with an active hydrogen--containing initiator compound.
Suitable such oxides include, for example, ethylene oxide, propylene oxide, 1,2-butylene oxide, 28,659-F -3-l1#0~4~;
-4~
2,3-butylene oxide, styrene oxide, epichlorohydrin, epibromohydrin, and mixtures thereof.
Suitable initiator compounds include, for example, water, ethylene glycol, propylene glycol, butanediol, hexanediol, glycerine, trimethylol propane, pentaexythritol, hexanetriol, sorbitol, sucrose, hydro-quinone, resorcinol, catechol, bisphenols, novolac resins, phosphoric acid, and mixtures thereof.
Also suitable as initiators for the rela-tively high molecular weight polyols include, forexample, ammonia, ethylenediamine, diaminopropanes, diaminobutanes, diaminopentanes, diaminohexanes, diethylenetriamine, triethylenetetramine, tetraethyl-enepentamine, pentaethylenehexamine, ethanolamine, aminoethylethanolamine, aniline, 2,4-toluenediamine, 2,6-toluenediamine, diaminodiphenyloxide ~oxydiani-line), 2,4'-diamino-diphenylmethane, 4,4'-diamino-diphenylmethane, 1,3-phenylenediamine, 1,4-phenylene-diamine, naphthylene-1,5-diamine, triphenylmethane~
-4,4',4"-triamine, 4,4'-di(methylamino)-diphenylmethane, 1-methyl-2-methylamino-4-aminobenzene, 1,3-diethyl-2,4--diaminobenzene, 2,4-diaminomesitylene, 1-methyl-3,5--diethyl-2,4-diaminobenzene, 1-methyl-3,5-diethyl-2,6--diaminobenzene, 1,3,5-triethyl-2,6-diaminoben~ene,
product of the amine hydrogen atoms of component (B-2) with a s~iochiometric quantity (one NC0 or NCS group for each aliphatic amine hydrogen) of component (C) based upon the total weight of components (A), (B) and (C) is from 5 to 25, preferably from 6 to 20 and most preferably from 6 to 16; and wherein the NCX index is from 0.6:1 to 1.5:1, preferably rom 0.7:1 to 1.25:1 and most preferably from 0.8:1 to 1.10:1 with the proviso that when an NCX trimerization catalyst is also present the index is up to 5:1.
The term NCX index is the ratio of the total number of NC0 and/or NCS groups to the total number of active hydrogen atoms contained in the foxmulation.
The relatively hiyh molecular weight hydroxyl--containing polyols which can be employed herein are beneficially those polyether and polyester polyols which are free of active amine hydrogen atoms and which have an average hydroxyl functionality of from 2 to 8, preferably from 2 to 4 and most preferably from 2 to 3 and an average hydroxyl equivalent weight of from 500 to 5000, preferably from 1000 to 3000 and most preferably from 1500 to 2500 including mixtures thereof.
Suitable relatively high molecular weight polyether polyols which can be employed herein include those which are prepared by reacting an alkylene oxide, halogen substituted or aromatic substitued alkylene .
oxide or mixtures thereo~ with an active hydrogen--containing initiator compound.
Suitable such oxides include, for example, ethylene oxide, propylene oxide, 1,2-butylene oxide, 28,659-F -3-l1#0~4~;
-4~
2,3-butylene oxide, styrene oxide, epichlorohydrin, epibromohydrin, and mixtures thereof.
Suitable initiator compounds include, for example, water, ethylene glycol, propylene glycol, butanediol, hexanediol, glycerine, trimethylol propane, pentaexythritol, hexanetriol, sorbitol, sucrose, hydro-quinone, resorcinol, catechol, bisphenols, novolac resins, phosphoric acid, and mixtures thereof.
Also suitable as initiators for the rela-tively high molecular weight polyols include, forexample, ammonia, ethylenediamine, diaminopropanes, diaminobutanes, diaminopentanes, diaminohexanes, diethylenetriamine, triethylenetetramine, tetraethyl-enepentamine, pentaethylenehexamine, ethanolamine, aminoethylethanolamine, aniline, 2,4-toluenediamine, 2,6-toluenediamine, diaminodiphenyloxide ~oxydiani-line), 2,4'-diamino-diphenylmethane, 4,4'-diamino-diphenylmethane, 1,3-phenylenediamine, 1,4-phenylene-diamine, naphthylene-1,5-diamine, triphenylmethane~
-4,4',4"-triamine, 4,4'-di(methylamino)-diphenylmethane, 1-methyl-2-methylamino-4-aminobenzene, 1,3-diethyl-2,4--diaminobenzene, 2,4-diaminomesitylene, 1-methyl-3,5--diethyl-2,4-diaminobenzene, 1-methyl-3,5-diethyl-2,6--diaminobenzene, 1,3,5-triethyl-2,6-diaminoben~ene,
3,5,3',5'-tetraethyl-4,4'-diaminodiphenylmethane and amine aldehyde condensation products such as the polyphenyl-polymethylene polyamines produced from aniline and formaldehyde, and mixtures thereof.
Suitable polyester polyols which may be employed herein include, for example, those prepared by reacting a polycarboxylic acid or anhydride thereof 28,659-F -4-v ~
with a polyhydric alcohol. The polycarboxylic acids may be aliphatic, cycloaliphatic, aromatic and/or heterocyclic and may be substituted (e.g. wi~h halogen atom) and/or uns~turated. Examples of carboxylic acids of this kind include succinic acid; adipic acid; suberic acid; azelaic acid; sebacic acid; phthalic acid; isophthalic acid; trimellitic acid; phthalic acid anhydride; tetra-hydrophthalic acid anhydride; hexahydrophthalic acid anhydride; tetrachlorophthalic acid anhydride; endo-methylene tetrahydrophthalic acid anhydride; glutaricacid anhydride; maleic acid; maleic acid anhydride;
fumaric acid; dimeric and trimeric fatty acids; such as oleic acid, which may be in admixture with monomeric fatty acids, terephthalic acid dimethyl ester, and terephthalic acid bisglycol ester. Mixtures of such acids or anhydrides may also be employed.
Examples of suitable polyhydric alcohols include ethylene glycol, 1,2-propylene glycol; 1,3-propylene glycol; 1,4-, 1,2- and 2,3-butylene glycol;
1,6-hexane diol; 1,8-octane diol; neopentyl glycol;
cyclohexane dimethanol (1,4-bis-hydroxyme~hyl cyclo-hexane) 2-methyl-1,3-propane diol; glycerol; trimethylol propane; 1,2,6-hexane triol; 1,2,4-butane triol; tri-methylol ethane; pentaerythritol; guinitol; mannikol;
sorbitol; methyl glycoside; diethylene glycol; tri-ethylene glycol; tetraethylene glycol; polyethylene glycol; dipropylene glycol; polypropylene glycols;
dibutylene glycol, and polybutylene glycols. The polyesters may contain some terminal carboxyl groups.
It is also possible to use polyesters of lactones such as caprolactone~ or hydroxy carboxylic acids such as hydroxy caproic acid.
28,659-F -5-~ ~o~
Other polyols which can be employed herein include polymer-containing polyols such as, for example, those disclosed in U.S. Patent Nos. RE 29,118 (Stamberger), RE 28,715 (Stamberger~, RE 29,014 (Pizzini et al) and 3,869,413 (Blankenship et al).
Suitable hydroxyl-containing chain extenders, component (B-l-a), which are free of aliphatic amine hydrogen atoms include, for example, ethylene glycol, propylene glycol, trimethylol propane, 1,4-butane diol, diethylene glycol, dipropylene glycol, bisphenols, hydroquinone, catechol, resorcinol, triethylene glycol, tetraethylene glycol, dicyclopentadienediethanol, glycerine, low molecular weight ethylene and/or propy-lene oxide derivatives of glycerine, ethylene diamine, diethylenetriamine, and mixtures thereof.
Suitable aliphatic amine-containing chain extenders having at least one primary amine group, component (B-2~, which can be employed herein include, for example, ethylene diamine, 1,3-diaminopropane, 1,4-diaminobutane, isophoronediamine, diethylenetriamine, ethanolamine, aminoethylethanolamine, diaminocyclohexane, hexamethylenediamine, methyliminobispropylamine, imino-bispropylamine, bis(aminopropyl)piperazine, aminoethyl piperaæine, 1,2-diaminocyclohexane, polyoxyalkyleneamines, bis-(p-aminocyclohexyl)methane, triethylenetetramine, tetraethylenepentamine, and mixtures thereof.
Particularly suitable are the aminated poly-oxypropylene glycols having an average amine hydroyen equivalent weight of from 60 to 110.
The term aliphatic amine as employed herein includes also the cycloaliphatic amines and hetero-28,659-F -6-A ~;
cyclic aliphatic amines so long as they contain at least one primary amine group.
Suitable aromatic amines which can be employed herein as chain extenders which are free of aliphatic amine hydrogen atoms, component (B 1-b3, include, for example, ~,4-bis(p-aminobenzyl)aniline, 2,4-diaminotoluene, 2,6-diaminotoluene, 1,3-phenylenediamine, 1,4-phenylene-diamine, 2,4'-diaminodiphenlylme~hane, 4,4'-diaminodiphenyl-methane, naphthalene-1,5-diamine, triphenylmethane-4,4',4"--triamine, 4,4'-di-(methylamino)-diphenylmethane, l-methyl-2-methylamino-4-aminobenzene, polyphenyl-poly-methylene polyamines, 1,3-diethyl-2,4-diaminobenzene, 2,4-diaminomesitylene, 1-methyl-3,5-diethyl-2,4-diamino-benzene, l-methyl-3,5-diethyl-2,6~diaminobenzene, 1,3,5-triethyl-2,6~diaminobenzene, 3,5,3',5'-tetraethyl-
Suitable polyester polyols which may be employed herein include, for example, those prepared by reacting a polycarboxylic acid or anhydride thereof 28,659-F -4-v ~
with a polyhydric alcohol. The polycarboxylic acids may be aliphatic, cycloaliphatic, aromatic and/or heterocyclic and may be substituted (e.g. wi~h halogen atom) and/or uns~turated. Examples of carboxylic acids of this kind include succinic acid; adipic acid; suberic acid; azelaic acid; sebacic acid; phthalic acid; isophthalic acid; trimellitic acid; phthalic acid anhydride; tetra-hydrophthalic acid anhydride; hexahydrophthalic acid anhydride; tetrachlorophthalic acid anhydride; endo-methylene tetrahydrophthalic acid anhydride; glutaricacid anhydride; maleic acid; maleic acid anhydride;
fumaric acid; dimeric and trimeric fatty acids; such as oleic acid, which may be in admixture with monomeric fatty acids, terephthalic acid dimethyl ester, and terephthalic acid bisglycol ester. Mixtures of such acids or anhydrides may also be employed.
Examples of suitable polyhydric alcohols include ethylene glycol, 1,2-propylene glycol; 1,3-propylene glycol; 1,4-, 1,2- and 2,3-butylene glycol;
1,6-hexane diol; 1,8-octane diol; neopentyl glycol;
cyclohexane dimethanol (1,4-bis-hydroxyme~hyl cyclo-hexane) 2-methyl-1,3-propane diol; glycerol; trimethylol propane; 1,2,6-hexane triol; 1,2,4-butane triol; tri-methylol ethane; pentaerythritol; guinitol; mannikol;
sorbitol; methyl glycoside; diethylene glycol; tri-ethylene glycol; tetraethylene glycol; polyethylene glycol; dipropylene glycol; polypropylene glycols;
dibutylene glycol, and polybutylene glycols. The polyesters may contain some terminal carboxyl groups.
It is also possible to use polyesters of lactones such as caprolactone~ or hydroxy carboxylic acids such as hydroxy caproic acid.
28,659-F -5-~ ~o~
Other polyols which can be employed herein include polymer-containing polyols such as, for example, those disclosed in U.S. Patent Nos. RE 29,118 (Stamberger), RE 28,715 (Stamberger~, RE 29,014 (Pizzini et al) and 3,869,413 (Blankenship et al).
Suitable hydroxyl-containing chain extenders, component (B-l-a), which are free of aliphatic amine hydrogen atoms include, for example, ethylene glycol, propylene glycol, trimethylol propane, 1,4-butane diol, diethylene glycol, dipropylene glycol, bisphenols, hydroquinone, catechol, resorcinol, triethylene glycol, tetraethylene glycol, dicyclopentadienediethanol, glycerine, low molecular weight ethylene and/or propy-lene oxide derivatives of glycerine, ethylene diamine, diethylenetriamine, and mixtures thereof.
Suitable aliphatic amine-containing chain extenders having at least one primary amine group, component (B-2~, which can be employed herein include, for example, ethylene diamine, 1,3-diaminopropane, 1,4-diaminobutane, isophoronediamine, diethylenetriamine, ethanolamine, aminoethylethanolamine, diaminocyclohexane, hexamethylenediamine, methyliminobispropylamine, imino-bispropylamine, bis(aminopropyl)piperazine, aminoethyl piperaæine, 1,2-diaminocyclohexane, polyoxyalkyleneamines, bis-(p-aminocyclohexyl)methane, triethylenetetramine, tetraethylenepentamine, and mixtures thereof.
Particularly suitable are the aminated poly-oxypropylene glycols having an average amine hydroyen equivalent weight of from 60 to 110.
The term aliphatic amine as employed herein includes also the cycloaliphatic amines and hetero-28,659-F -6-A ~;
cyclic aliphatic amines so long as they contain at least one primary amine group.
Suitable aromatic amines which can be employed herein as chain extenders which are free of aliphatic amine hydrogen atoms, component (B 1-b3, include, for example, ~,4-bis(p-aminobenzyl)aniline, 2,4-diaminotoluene, 2,6-diaminotoluene, 1,3-phenylenediamine, 1,4-phenylene-diamine, 2,4'-diaminodiphenlylme~hane, 4,4'-diaminodiphenyl-methane, naphthalene-1,5-diamine, triphenylmethane-4,4',4"--triamine, 4,4'-di-(methylamino)-diphenylmethane, l-methyl-2-methylamino-4-aminobenzene, polyphenyl-poly-methylene polyamines, 1,3-diethyl-2,4-diaminobenzene, 2,4-diaminomesitylene, 1-methyl-3,5-diethyl-2,4-diamino-benzene, l-methyl-3,5-diethyl-2,6~diaminobenzene, 1,3,5-triethyl-2,6~diaminobenzene, 3,5,3',5'-tetraethyl-
-4,4'-diaminodiphenylmethany, 4,4'-methylene-bis(2,6-di-isopropylaniline), and mixtures thereof.
Suitable polyisocyanates include the organic aromatic and aliphatic polyisocyanates or mixtures thereof.
Suitable organic aromatic polyisocyanates which can be employed herein include, for example, any such polyisocyanate having 2 or more NCO groups per molecule such as, for example, 2,4-toluenediisocyanate, 2,6-toluenediisocyanate, p,p'-diphenylmethanediiso-cyanate, p-phenylenediisocyanate, naphthalenediiso-cyanate, polymethylene polyphenylisocyanates, and mixtures thereof.
28,659-F -7-~ 180~
Also suitable are organic aromatic polyisocy-anates and the prepolymers prepared from such polyiso-cyanates and compounds having 2 or more active hydrogen atoms.
Suitable organic aliphatic polyisocyanates include, in addition to the hydrogenated derivatives of the above mentioned organic aromatic polyisocyanates, 1,6-hexamethylene diisocyanate, 1,4-cyclohexyl diiso-cyanate, 1,4-bis-isocyanatomethyl-cyclohexane, and mixtures thereof.
Also suitable are the corresponding polyiso-thiocyanates.
The polyurethanes can be prepared either in the presence or absence of a catalyst. Those polyure-thanes prepared from amine-containing polyols do not usually re~uire a catalyst although catalysts can be employed if desired. On the other hand, those polyure-thanes prepared from polyols which do not contain nitrogen atoms are prepared in the presence of a catalyst.
Suitable catalysts which may be employed herein include, for example, organo-metal compounds/
tertiary amines, alkali metal alkoxides, and mixtures thereof.
Suitàble organo-metal catalysts include, for example, organo-metal compounds of tin, zinc, lead, mercury, cadmium, bismuth, antimony, iron, manganese, cobalt, copper, and vanadium such as, for example, metal salts of a carboxylic acid having from 2 to 20 carbon atoms including, for example, stannous octoate, 28,659-F -8-t ~801d~
dimethyltin dilaura~e, dibutyltin dilaurate, dibutyltin diacetate, ferric acetyl acetonate, lead octoate, lead oleate, phenylmercuric propionate, lead naphthenate, manganese naphthenate, copper naphthenate, vanadyl naphthenate, cobalt octoate, cobalt acetate, copper oleate, vanadium pentoxide, and mixtures thereof.
Suitable amine catalysts include, for ex~nple, triethylenediamine, triethylamine, tetramethylbutanediamine, N,N-dimethylethanolamine, N-ethylmorpholine, bis (2-dimethyl-~ninoethyl)ether, N-methylmorpholine, N-ethylpiperidine, 1,3-bis-(dimethylamino)-2-propanol, N,N,N',N'-tetramethyl-ethylenediamine, and mixtures thereof.
Suitable alkali metal alkoxides which can be employed as catalysts for urethane formation include, for example, sodium ethoxide, potassium ethoxide, sodium propoxide, potassium propoxide, sodium butoxide, potassium butoxide, lithium ethoxide, lithium propoxide, lithium butoxide, alkali metal salts of polyols such as described in U.S. Patent No. 3,728,308, and mixtures thereof.
Preferably, these urethane catalysts are in liquid form, but if they are inherently a solid at the application temperatuxe, then they may be dissolved in an appropriate liquid, such as, for example, dipro-pylene glycol.
The catalysts, when employed, can be employe~in quantities of from 0.001 to 5, preferably from 0.01 to 1 part per 100 parts of total polyol employed depending upon the activity of the catalyst. Very weak catalysts could possibly be employed in quantities above 5 parts per 100 parts o polyol.
28,659-F -9-~8~
Suitable trimerization catalysts which can be employed herein include, for example, the zwitterions disclosed by Kresta and Shen in U.S. Patent No. 4,111,914 and the tertiary amines, alkali metal salts of lower alkanoic acids, and mixtures thereof disclosed in U.S.
Patent No. 4,126,741 (Carleton et al).
The zwitterions can also function as a catalyst for urethane formation i.e. the NCX-OH reaction.
If desired, the densities of the polyure-thanes produced herein can be reduced by incorporatinga blowing agent into the formulation. Suitable such blowing agents are fully described in U.S. Patent No.
4,125,487 and in U.S. Patent No. 3,753,933. Particularly suitable blowing agents include the low boiling halo-genated hydrocarbons such as, for example, methylenechloride and trichloromonofluoromethane.
Another suitable method for reducing the density is by frothing by injecting an inert gas into the mixture of urethane forming components. Suitable such inert gases include, for example, nitrogen, oxygen, carbon dioxide, xenon, helium, and mixtures thereof, such as air.
If desired, cell control agents can be employed, particularly when preparing foams or products of reduced density and/or to assist in paintability of the polyurethane.
Suitable cell control agents which can be employed herein include silicone oils such as, for example, DC-193, DC-195, DC-197 and DC-198 commercially available from Dow Corning Corp.; SF-1034, PFA-1635, PFA-1700 and PFA-1660 commercially available from General Electric Co.; and L-520, L-5320 and 28,659-F -10-~ ~8~
L~5340 commercially available from Union Carbi~e Corp.;
and B-1048 commercially available from PH. Goldschmidt, AG., and mixtures thereof.
The polyurethane compositions of the present invention may optionally contain, if desired, coloring agents, mold release agents, fire retardant agents, fillers, and modifiers.
Suitable li~uid and solid modifiers are disclosed and described in U.S. Patent Nos. 4,000,105 and 4,154,716. However, any such modifier described therein which fulfills the definition of any of the oth~r components as described in this application are not considered as modifiers but rather as one of the components of the present invention.
Particularly suitable as the modifier or filler substances are fiberglass reinforcement fibers, particularly those having lengths of from about 1/16 inch (0.16 cm) to about 1/2 inch (1.27 cm) and milled glass fibers having a maximum length of 1/16 inch (0.16 cm), 1/~3 inch (0.32 cm) or 1/4 inch (0.64 cm). Other par-ticularly suitable fillers are mica and wollastonite.
The components which react to form the poly-urethanes of the present invention can be shaped or formed into useful articles by injecting the reactive mixture into molds which are capable of withstanding the exotherm of the polymerizing mass and are non~-reactive with and are insoluble when in contact with the li~uid reactive mixture. Particularly suitable molds are those made of metal such as aluminum, copper, brass, steel and the like. In some instances non-metal 28,659-F
~ ~0~46 molds can be employed such as those made of, for example, polyethylene, polypropylene, polyethylene terephthalate, and silicone elastomers.
Particularly suitable injection methods for the RIM applications of the present invention include those disclosed in the aforementioned articles by Ludwico et al, Gerkin et al, British Patent No.
1,534,258 and the book by F. Melvin Sweeney.
To prevent the solidifying mass from adhering to the mold surface, it may be necessary to precoat the mold surface with a film of a suitable mold release agent such as, for example, hydrocarbon wax or a poly-siloxane preparation or a polytetrafluoroethylerle coating, or employ an internal mold release agent in the composition.
When injecting a relatively rapid-setting blend into massive metal molds, it may be necessary for rapid demolding to preheat the molds to an appropriate temperature so that the mold will not abstract the heat of polymerization from the reactive mass and inappro priately delay the solidification time expected of a given formulation. On the other hand, thin wall metal molds could exhibit a minimal "heat sink" effect on relatively large cross section castings and thus, these thin wall metal molds may not require preheating.
The following examples are illustrative of the present invention and are not to be construed as to limiting the scope thereof in any manner.
28,659-F - -12-13~
~ ~30~
Following is a list of materials employed in the examples and comparative experiments.
Polyol A is the reaction product of glycerine and propylene oxide at a molar ratio of 1 to 6 respec-tively and having an equivalent weight of 150.
PolYol B is the reaction product of Polyol A with propylene oxide and subsequently end-capped with 8% by weight of ethylene oxide to a hydroxyl equivalen~ weight of lO00.
Polyol C is the reaction product of Polyol A with propylene oxide and subsequently end-capped with ethylene oxide. The amount of ethylene oxide is 17% by weight of the total amount of oxide added.
The hydroxyl equivalent weight is 2361.
PolYol D is the reaction product of glycexine with propylene oxide subsequently end-capped with 15 wt. % ethylene oxide. The hydroxyl equivalent weight is 1557.
Polyol E is a polyether triol containing 30% by weight of polyacrylonitrile. This copolymer polyol has an average hydroxyl equivalent weight of 2045 and is commercially available from Union Carbide Corporation as NIAX~3123.
Polyol F is polyether polyol D containing 21% by weight of a copolymer consisting of 80% acrylonitrile and 20% by weight of styrene. The product has an average hydroxyl equivalent weight of 1800.
28,659-F -13-Chain Extender_A is e~hylene glycol having an average hydroxyl equivalent weight of 31.
Chain Extender B is diethylene glycol having an average hydroxyl equivalent weight of 53.
Ch in Extender C is ethylene diamine having an average amine hydrogen equivalent weight of 15.
Chain Extender D is dipropylene glycol having an avera~e hydroxyl equivalent weight of 67.
Chain Extender E is diethylenetriamine having an average amine hydrogen equivalent weight of 21. .
.
Chain Extender F is the reaction product of tri-methylolpropane with propylene oxide containing terminal amine groups represented by the formula ~H3 f H2--~0-CH2- H )XNH2 - / lH3 C~3- ~2-C CH2--t---CH- H ~ NH
\ C~3 " C~2 ~ CH2 - HtNH
wherein x ~ y + z has a value of 5.3. The average amine hydrogen equivalent weight is 67 and the ~roduct is commercially available from Je~ferson Chemical Co. as JEFFAMINE~T-403.
p 28,659-F -14-- ' --15 ~
4 ~
Chain_Extender G is an aminated polyoxypropylene glycol represented by the formula 7 ~ ~ ~
. H2N-t-~ - C~0 ~ C NH2 H ~ H E
- wherein x has a value of 5.6. This product has an ave~age amine hydrogen equivalent weight of 100 and is commercially available from Jefferson Chemical co. as JEFFAMINE~D-400.
Chain Extender ~ is an aminated polyoxyalkylene glycol represented by the same formula as in G
above wherein x has an average value of 2.6. This product has an average amine hydrogen equivalent weight of 57.5 and is commercially available from Jefferson Chemical Co. as JEFEAMINE ~-230.
Chain Ext nder I is bis(p-aminocyclohexyl)methane having an average amine hydrogen equivalent weight of 52.5.
Chain_Extender J is a mixture of 94.9S% a~.ino-ethylplperazine, 4.05% chain extender E and 1%
.impurlties having an average functionality of 3.04 and an average amine hydrogen equivalent weight of 41.4.
Chain Extender K ls a polymethylene polyphenyl amine having an average amine active hydrogen .
functionality of 4.6 and an average amine hydrogen eguivalent weight of 51.5 and is commerclally available from Upjohn Co. as CURE~HANE~03.
28,659-F -15-.
Chain_Extender L is a polymethylene polyphenylamine having a-n average amine hydrogen functionality of 6 and an average amine hydrogen equivalent weight of 51.5 and is commercially available from E. I.
DuPont de Nemours and Co., Inc.
Polylsocyanate A is a liquid, modified diphenyl-methane diisocyanate containing a high percentage of pure diphenyl methane diisocyanate and a lesser amount of polycarbodiimide adducts commerc~ally available from The Upjohn Company as ISONATE~143L.
The a~erage isocyanate equivalent weight is 143.
Polyisocyanate B is a liquid, modified polyiso-cyanate-prepolymer having a percent NCO of 26.4 and an isocyanate equivalent weight of 159 which is commercially~available from Mobay Chemical Company as Mondur~E-509.
Polyisocyanate_C i5 a liquid, modified polyiso-cyanate having an NCO content of 22.6% i 0.6% and an isocyanate equivalent weight of 185 which is commercially available from Mobay Chemical Company as Mondur~PF.
Catal~st A is FQMREZ~UL-28 commercially available from Witco Chemical Co.
Catal~st B is a liquid lead complex containing 36 lead, commercially available from Tenneco Corpor-ation as Nuodex .
The physical properties were determined by the following methods.
; ~ 28,659-F -16- -,~
3 ~o~
PROPERTY UNITS TEST METHOD
Flexural Moduluspsi(MPa) ASTM D790-66 Elongation % ASTM D638-68 Tear Strengthlbs/linear i~ch ASTM D62Y Die C
(N/linear meter) Heat Sag 250/60 min. inches (cm) of sag 6MTZZZ006AA
(General Motors) Density g/cc ASTM D792 Examples 1-25 and Com~arative Experiments A-C
These examples and comparative experiments were prepared by use of high pressure impingement mixing e~uipment employing one of the following type units: Admiral HP-40, Hennecke HK 245 or Krauss Maffei PU 80/40. Samples were molded in a heated polished steel mold forming a 1/8 inch (3.2 mm) thick sheet of polymer, demolded 60 sec. after injection. The polyol components were maintained at a temperature of 75-140F.
(24-60C). The isocyanate components were maintained at a temperature of from 75-120F (24-49C~. The components were injected into the mold at a pressure of 1500-2500 psi (10340-17240 KPa). The injection rates varied from 25 lbs/min (11 kg/min) to 220 lbs/min (100 kg/min.). The mold temperatures varied from 125-175F
(52-79C).
The components and physical properties are given in the following Table. The physical properties were Qbtained after the samples had been post cured at 250F (121C) for 60 minutes.
28,659-F -17-~0 j Z~ ~ Z
H ~ .
L~ X U~
H ~ ~O O O O O O O O O O O O O
~ Z X ~ ~ Z Z ~
H
.
C~
H g H ~ a~
~ p ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ d~
E~ æ m ~ co co ~ , ~7 ~ co ~ O a) ~ co co ~i ~ O ~ d' dl ~ ~ 0~ ~ U~ ~ ~ ~ ~ d' ~
~ s~ o o o o o o o o o o o o o i~ H ~ ~1 ~ ~1 ~I r-l ~1 W . .
~ .~
t~ 1 N N N ~1 ~ ~ ~ N ~1 ) U) OOOOOOOO OOOOO
OOOOOOOO OOOOO
2 ~ ~o~\o~o~ o~
oooooooo ooooo , ~ U~
m ~ ~ ~o~oo ooooo '~ ~
~o ~ ~ o~
~ Pl~ X---......... .....
xp~x;~ ow p~ x x x x ~ x x ~ x ~ x ~o~z v ~ ~
28, 659-F -18-U~ ) O CD aD 0 a~ co ~
E~ ~ ~I rl N N N N ~ N N ~ q) q) a~ O O
C~ X tn .... - - - - .
O ~ O O O O O O O Z Z Z Z Z Z
Ç~ H R, ~ ~ N d' d ~ ~ ~ d' O ~ \
.~
H
H P~ J d~
c~ 0 0 ~ ~ a~ ~ ~ ~ ~ w ~ Lr) ~ In Z ~ O ~ ~ d' ~1 ~1 ~1 ~1 0~ ~ . . . . . .
O~ ~ ~dl~ O OOOOO
h o o o o o o o o o ~rl N ~`I O O O
~ Z ~ 1~ t` 1~ ~ t`~ ~ ~ In ~ o~ .-1 ~1 ~ O r~
V
d' ~ ~ o~ o~ o ~ c~
N N N ~ N N ~ ~1 N a) OD OD O ~1 ~) O O OOOOOOOOO ~ OO~100 ~ ~ ......... . .....
o ~
~ ~ ooooooooo o ooooo ~ o o o o o c~ o o o o o o o o o g ~``````` ù ````~
U~ ~1 N ~I N ~`1 N t~ ~ N ~ ~1 N ~ N ~ t~l ......... . ...
V O
~ P~
~: ~ ~ dl U ~ t` a) ~ o ~1 . ~ N t'~ d~ u~
O ~ i~l ~1 ~1 ~1 ~1 ~I r~ 3 ~ N N
X ~ X X O ~ O
28, 659-F -19-l 4 ~
C~ ~ 0~ ~ 0 Z ~ ~ ~o ,, U~ ~ CO ,,, , I , , H Z
~)' X
~ r) LO 11) O t` Il') Ll~ I` N ~1 0 0 .~1 O O O ~ O OD C:) O ~ O O O O
\ j ~ 1 0 .-1 0 ~i ~ 0 ~
~) ci~ o co ~ ) r` N ~ ~1 ~¢ o ~ r~ o ~ o~ ~ ~ ~ ) ~ ~ o t~
~: V ~1 ~ ~ ~ -1 ~ N N d~l ~ t') ~
tO~R OOOOO OOOrlO O O O
O
u~ h ~) N ~ t~ ~
H Il) 0 Ct~ O ~1 0~ 0 ~ 11~ tf) t~ L`
O O CO ~ O O ~1 ~ O ~D N ~I N ~I r-l E~
H W rl 11~N t` N t` Ll') ~ N t~ N
~ a ~ Ul ~ O ~
~ ~ . O ~ ~, ~, O ~ ~ O ~ ~ O ~ O ~, O ~, O
UE~ .................
H X ~'''1 O U-) ~4 H ~ O
I--I !¢ G) Z r` ~ ~ ~ N d~ ~1 ~ ~ ~ ~ O N ~ N
~ U ,~ ~ ~ H ~ W ~
.' ~¢
.
~1 0 I:r:l ~ ~I N tr) d~ D 1~ co a~
~ X - ~ ~ ~ ........... . .
0 ~ C X X ~ X X X ~ X X X
~ O ~:1 Z C,~ il W ~1 28, 659-F -20-~ ~0~
h ~ Z; Q . . .
3o ~ a~
m ~ ~; ,,,,, I ~
~rl ~ ~ ~ a~ 0 a: 0 ~ oo O O O O
......... . .....
OOOOOOOOO ~1 ~Irl~
O ~ ~ ~ ~
'¢ O ~ OD OD 0~ ~ N N ~ 0~ 0 Z C) ~1) N ~ 00 ~ Lt~ l') t` In ~ O
~: Z 0 ~10 ao 1` t~ r~ e~ 0 1` ~ t~ o co .-1 0 ~\ ......... . .....
OOOOOOOOO O O~O~O
O
~-~ d~ CO N ~1 D CO N t` m t`
o ~ ~o ~ ~ r~ o d1 ~ ~ ~ O ~ ~ u~
a) rl N N ~I N N * Ll ~ ~ O 11 ~1 ~ ~?m~
~1 E~
m n n u) o u~ o o o o ~ u~
Z ~ ~ ~ ~ o ~ Ln U) U7 O ~, ~ ~_ W ~ ~ ,~ 1 ~ ~ ~ ~ O ~
U E~ .......... ....
H X ~ rl C ~
F:~ ~ h ~:3 ~ ~ ~ O O ~
H ~¢ QJtr~ ~ ~ O N U~ ') O ~Z; ~Z r-l ~) I~
:q o t~ o ~1 ~ ~ N ~
P~ O ~ ~1rl r~l -1 ~1 ~1 ~I r l N N ~ ~ ~ ~ ~ N N N
~ O ~ ~ ~ ~ ~ X ~ X ~ X X
28, 659-F -21-.
E~ U) H ~ r-l 0 0 d~11) d~ 11~ 0 r U~ ~ O ~1 O r~ ~10 0 0 ~1 0 0 ~ ~ ...... ......
W t r~~ r-l r-l ~I rl ~ r-l rl ~I r~
v o a) a~ ~ o~ u) ~ ~o ~ r~
o ~_ . .. . . . ~
~ ~ ~ o o ~ ~D ,1~ o ~ o o o E~-- u~ 1` z; In O ~ r-F~ o ~ ~ ~ ~ o ~ n ~ ~ ~ ~
P: O-rl O O O ~i ~ C~ O O O O O O
U~
~ ,_ O ~ ~ O 0 Z ~; ~ r~ o u~
~ ~ --r~ l ~ rl rl r-l ~1 ~1 E~-- --__-- _ _____ U~
~
Q o o o o ~ o ~ Ln r~ N ~
O ~ U) O ~) ~) O N N ~ O 1~ N
O CO ~ d1 0 ~ C~
~1 I:L1 E-l P~ r~ I ~ N N t~ ~Y ~I N N ~ N N
__________,,___ t~ H Z --O U~ ~3 t) Z ~ rl ~ ~ 0 O 11') ~ O ~0 r-l -1 U) rl ~ E~ Il) Ll~ 0 ~ O O
E~ ~ t` N a~ O 1 E-l I I
Z ~ O ~ O O 1'~) t~ t~ ~O O ~ ~:) N
O H ~ 0~ 1~ 0 15~ ~) t'7 d~ d~ t~ t-- ~r) ~1 11~
d~ d~ ~ N ~ ~I t~ 1 N ~ ~1 ;~
p E-l V ,I t~ o o Lr~ N
¢O ............
c~ o m u~ o c~ 0 ,1 0 ~
H H p~ H ~1 ~1 ~1 N r~ ~1 ~1 ~1 r-l ~1 ~3 H h
Suitable polyisocyanates include the organic aromatic and aliphatic polyisocyanates or mixtures thereof.
Suitable organic aromatic polyisocyanates which can be employed herein include, for example, any such polyisocyanate having 2 or more NCO groups per molecule such as, for example, 2,4-toluenediisocyanate, 2,6-toluenediisocyanate, p,p'-diphenylmethanediiso-cyanate, p-phenylenediisocyanate, naphthalenediiso-cyanate, polymethylene polyphenylisocyanates, and mixtures thereof.
28,659-F -7-~ 180~
Also suitable are organic aromatic polyisocy-anates and the prepolymers prepared from such polyiso-cyanates and compounds having 2 or more active hydrogen atoms.
Suitable organic aliphatic polyisocyanates include, in addition to the hydrogenated derivatives of the above mentioned organic aromatic polyisocyanates, 1,6-hexamethylene diisocyanate, 1,4-cyclohexyl diiso-cyanate, 1,4-bis-isocyanatomethyl-cyclohexane, and mixtures thereof.
Also suitable are the corresponding polyiso-thiocyanates.
The polyurethanes can be prepared either in the presence or absence of a catalyst. Those polyure-thanes prepared from amine-containing polyols do not usually re~uire a catalyst although catalysts can be employed if desired. On the other hand, those polyure-thanes prepared from polyols which do not contain nitrogen atoms are prepared in the presence of a catalyst.
Suitable catalysts which may be employed herein include, for example, organo-metal compounds/
tertiary amines, alkali metal alkoxides, and mixtures thereof.
Suitàble organo-metal catalysts include, for example, organo-metal compounds of tin, zinc, lead, mercury, cadmium, bismuth, antimony, iron, manganese, cobalt, copper, and vanadium such as, for example, metal salts of a carboxylic acid having from 2 to 20 carbon atoms including, for example, stannous octoate, 28,659-F -8-t ~801d~
dimethyltin dilaura~e, dibutyltin dilaurate, dibutyltin diacetate, ferric acetyl acetonate, lead octoate, lead oleate, phenylmercuric propionate, lead naphthenate, manganese naphthenate, copper naphthenate, vanadyl naphthenate, cobalt octoate, cobalt acetate, copper oleate, vanadium pentoxide, and mixtures thereof.
Suitable amine catalysts include, for ex~nple, triethylenediamine, triethylamine, tetramethylbutanediamine, N,N-dimethylethanolamine, N-ethylmorpholine, bis (2-dimethyl-~ninoethyl)ether, N-methylmorpholine, N-ethylpiperidine, 1,3-bis-(dimethylamino)-2-propanol, N,N,N',N'-tetramethyl-ethylenediamine, and mixtures thereof.
Suitable alkali metal alkoxides which can be employed as catalysts for urethane formation include, for example, sodium ethoxide, potassium ethoxide, sodium propoxide, potassium propoxide, sodium butoxide, potassium butoxide, lithium ethoxide, lithium propoxide, lithium butoxide, alkali metal salts of polyols such as described in U.S. Patent No. 3,728,308, and mixtures thereof.
Preferably, these urethane catalysts are in liquid form, but if they are inherently a solid at the application temperatuxe, then they may be dissolved in an appropriate liquid, such as, for example, dipro-pylene glycol.
The catalysts, when employed, can be employe~in quantities of from 0.001 to 5, preferably from 0.01 to 1 part per 100 parts of total polyol employed depending upon the activity of the catalyst. Very weak catalysts could possibly be employed in quantities above 5 parts per 100 parts o polyol.
28,659-F -9-~8~
Suitable trimerization catalysts which can be employed herein include, for example, the zwitterions disclosed by Kresta and Shen in U.S. Patent No. 4,111,914 and the tertiary amines, alkali metal salts of lower alkanoic acids, and mixtures thereof disclosed in U.S.
Patent No. 4,126,741 (Carleton et al).
The zwitterions can also function as a catalyst for urethane formation i.e. the NCX-OH reaction.
If desired, the densities of the polyure-thanes produced herein can be reduced by incorporatinga blowing agent into the formulation. Suitable such blowing agents are fully described in U.S. Patent No.
4,125,487 and in U.S. Patent No. 3,753,933. Particularly suitable blowing agents include the low boiling halo-genated hydrocarbons such as, for example, methylenechloride and trichloromonofluoromethane.
Another suitable method for reducing the density is by frothing by injecting an inert gas into the mixture of urethane forming components. Suitable such inert gases include, for example, nitrogen, oxygen, carbon dioxide, xenon, helium, and mixtures thereof, such as air.
If desired, cell control agents can be employed, particularly when preparing foams or products of reduced density and/or to assist in paintability of the polyurethane.
Suitable cell control agents which can be employed herein include silicone oils such as, for example, DC-193, DC-195, DC-197 and DC-198 commercially available from Dow Corning Corp.; SF-1034, PFA-1635, PFA-1700 and PFA-1660 commercially available from General Electric Co.; and L-520, L-5320 and 28,659-F -10-~ ~8~
L~5340 commercially available from Union Carbi~e Corp.;
and B-1048 commercially available from PH. Goldschmidt, AG., and mixtures thereof.
The polyurethane compositions of the present invention may optionally contain, if desired, coloring agents, mold release agents, fire retardant agents, fillers, and modifiers.
Suitable li~uid and solid modifiers are disclosed and described in U.S. Patent Nos. 4,000,105 and 4,154,716. However, any such modifier described therein which fulfills the definition of any of the oth~r components as described in this application are not considered as modifiers but rather as one of the components of the present invention.
Particularly suitable as the modifier or filler substances are fiberglass reinforcement fibers, particularly those having lengths of from about 1/16 inch (0.16 cm) to about 1/2 inch (1.27 cm) and milled glass fibers having a maximum length of 1/16 inch (0.16 cm), 1/~3 inch (0.32 cm) or 1/4 inch (0.64 cm). Other par-ticularly suitable fillers are mica and wollastonite.
The components which react to form the poly-urethanes of the present invention can be shaped or formed into useful articles by injecting the reactive mixture into molds which are capable of withstanding the exotherm of the polymerizing mass and are non~-reactive with and are insoluble when in contact with the li~uid reactive mixture. Particularly suitable molds are those made of metal such as aluminum, copper, brass, steel and the like. In some instances non-metal 28,659-F
~ ~0~46 molds can be employed such as those made of, for example, polyethylene, polypropylene, polyethylene terephthalate, and silicone elastomers.
Particularly suitable injection methods for the RIM applications of the present invention include those disclosed in the aforementioned articles by Ludwico et al, Gerkin et al, British Patent No.
1,534,258 and the book by F. Melvin Sweeney.
To prevent the solidifying mass from adhering to the mold surface, it may be necessary to precoat the mold surface with a film of a suitable mold release agent such as, for example, hydrocarbon wax or a poly-siloxane preparation or a polytetrafluoroethylerle coating, or employ an internal mold release agent in the composition.
When injecting a relatively rapid-setting blend into massive metal molds, it may be necessary for rapid demolding to preheat the molds to an appropriate temperature so that the mold will not abstract the heat of polymerization from the reactive mass and inappro priately delay the solidification time expected of a given formulation. On the other hand, thin wall metal molds could exhibit a minimal "heat sink" effect on relatively large cross section castings and thus, these thin wall metal molds may not require preheating.
The following examples are illustrative of the present invention and are not to be construed as to limiting the scope thereof in any manner.
28,659-F - -12-13~
~ ~30~
Following is a list of materials employed in the examples and comparative experiments.
Polyol A is the reaction product of glycerine and propylene oxide at a molar ratio of 1 to 6 respec-tively and having an equivalent weight of 150.
PolYol B is the reaction product of Polyol A with propylene oxide and subsequently end-capped with 8% by weight of ethylene oxide to a hydroxyl equivalen~ weight of lO00.
Polyol C is the reaction product of Polyol A with propylene oxide and subsequently end-capped with ethylene oxide. The amount of ethylene oxide is 17% by weight of the total amount of oxide added.
The hydroxyl equivalent weight is 2361.
PolYol D is the reaction product of glycexine with propylene oxide subsequently end-capped with 15 wt. % ethylene oxide. The hydroxyl equivalent weight is 1557.
Polyol E is a polyether triol containing 30% by weight of polyacrylonitrile. This copolymer polyol has an average hydroxyl equivalent weight of 2045 and is commercially available from Union Carbide Corporation as NIAX~3123.
Polyol F is polyether polyol D containing 21% by weight of a copolymer consisting of 80% acrylonitrile and 20% by weight of styrene. The product has an average hydroxyl equivalent weight of 1800.
28,659-F -13-Chain Extender_A is e~hylene glycol having an average hydroxyl equivalent weight of 31.
Chain Extender B is diethylene glycol having an average hydroxyl equivalent weight of 53.
Ch in Extender C is ethylene diamine having an average amine hydrogen equivalent weight of 15.
Chain Extender D is dipropylene glycol having an avera~e hydroxyl equivalent weight of 67.
Chain Extender E is diethylenetriamine having an average amine hydrogen equivalent weight of 21. .
.
Chain Extender F is the reaction product of tri-methylolpropane with propylene oxide containing terminal amine groups represented by the formula ~H3 f H2--~0-CH2- H )XNH2 - / lH3 C~3- ~2-C CH2--t---CH- H ~ NH
\ C~3 " C~2 ~ CH2 - HtNH
wherein x ~ y + z has a value of 5.3. The average amine hydrogen equivalent weight is 67 and the ~roduct is commercially available from Je~ferson Chemical Co. as JEFFAMINE~T-403.
p 28,659-F -14-- ' --15 ~
4 ~
Chain_Extender G is an aminated polyoxypropylene glycol represented by the formula 7 ~ ~ ~
. H2N-t-~ - C~0 ~ C NH2 H ~ H E
- wherein x has a value of 5.6. This product has an ave~age amine hydrogen equivalent weight of 100 and is commercially available from Jefferson Chemical co. as JEFFAMINE~D-400.
Chain Extender ~ is an aminated polyoxyalkylene glycol represented by the same formula as in G
above wherein x has an average value of 2.6. This product has an average amine hydrogen equivalent weight of 57.5 and is commercially available from Jefferson Chemical Co. as JEFEAMINE ~-230.
Chain Ext nder I is bis(p-aminocyclohexyl)methane having an average amine hydrogen equivalent weight of 52.5.
Chain_Extender J is a mixture of 94.9S% a~.ino-ethylplperazine, 4.05% chain extender E and 1%
.impurlties having an average functionality of 3.04 and an average amine hydrogen equivalent weight of 41.4.
Chain Extender K ls a polymethylene polyphenyl amine having an average amine active hydrogen .
functionality of 4.6 and an average amine hydrogen eguivalent weight of 51.5 and is commerclally available from Upjohn Co. as CURE~HANE~03.
28,659-F -15-.
Chain_Extender L is a polymethylene polyphenylamine having a-n average amine hydrogen functionality of 6 and an average amine hydrogen equivalent weight of 51.5 and is commercially available from E. I.
DuPont de Nemours and Co., Inc.
Polylsocyanate A is a liquid, modified diphenyl-methane diisocyanate containing a high percentage of pure diphenyl methane diisocyanate and a lesser amount of polycarbodiimide adducts commerc~ally available from The Upjohn Company as ISONATE~143L.
The a~erage isocyanate equivalent weight is 143.
Polyisocyanate B is a liquid, modified polyiso-cyanate-prepolymer having a percent NCO of 26.4 and an isocyanate equivalent weight of 159 which is commercially~available from Mobay Chemical Company as Mondur~E-509.
Polyisocyanate_C i5 a liquid, modified polyiso-cyanate having an NCO content of 22.6% i 0.6% and an isocyanate equivalent weight of 185 which is commercially available from Mobay Chemical Company as Mondur~PF.
Catal~st A is FQMREZ~UL-28 commercially available from Witco Chemical Co.
Catal~st B is a liquid lead complex containing 36 lead, commercially available from Tenneco Corpor-ation as Nuodex .
The physical properties were determined by the following methods.
; ~ 28,659-F -16- -,~
3 ~o~
PROPERTY UNITS TEST METHOD
Flexural Moduluspsi(MPa) ASTM D790-66 Elongation % ASTM D638-68 Tear Strengthlbs/linear i~ch ASTM D62Y Die C
(N/linear meter) Heat Sag 250/60 min. inches (cm) of sag 6MTZZZ006AA
(General Motors) Density g/cc ASTM D792 Examples 1-25 and Com~arative Experiments A-C
These examples and comparative experiments were prepared by use of high pressure impingement mixing e~uipment employing one of the following type units: Admiral HP-40, Hennecke HK 245 or Krauss Maffei PU 80/40. Samples were molded in a heated polished steel mold forming a 1/8 inch (3.2 mm) thick sheet of polymer, demolded 60 sec. after injection. The polyol components were maintained at a temperature of 75-140F.
(24-60C). The isocyanate components were maintained at a temperature of from 75-120F (24-49C~. The components were injected into the mold at a pressure of 1500-2500 psi (10340-17240 KPa). The injection rates varied from 25 lbs/min (11 kg/min) to 220 lbs/min (100 kg/min.). The mold temperatures varied from 125-175F
(52-79C).
The components and physical properties are given in the following Table. The physical properties were Qbtained after the samples had been post cured at 250F (121C) for 60 minutes.
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XXXX~XXXXo~Xo~XXX
r~ o w ~ ~ ~ ~ ~ ~ w ~ ~ o c) ~ ~ ~ ~ -28, 659-F -23-~ :~ 8V~
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28, 659-F -24 I ~01 o~ C) c~ O ~ O N a~ 0 r-- N N u~ N
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x~ x x x ~c x x x ~c x or~ o~ x x x x ~ o ~ æ ~ ~ w ~
28, 659-F -25-
1~l H C) P;o3 o .' ~ Z
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XXXX~XXXXo~Xo~XXX
r~ o w ~ ~ ~ ~ ~ ~ w ~ ~ o c) ~ ~ ~ ~ -28, 659-F -23-~ :~ 8V~
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o t~ D ~ ~ O ~` d"Y) d' ~D ~` r-l r~l 11~ Ir) 3 t~ O t~ ~ Ir~ O ~ t~~I N
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x~ x x x ~c x x x ~c x or~ o~ x x x x ~ o ~ æ ~ ~ w ~
28, 659-F -25-
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A process for preparing reaction injection molded polyurethane compositions by reacting (A) a relatively high molecular weight hydroxyl-containing polyol and (B) a chain extender with (C) a polyisocyanate, a polyisothiocyanate or a mixture thereof characterized in that the chain extender, component (B), is a mixture comprising (1) at least one of (a) hydroxyl-containing chain extenders which are free of aliphatic amine hydrogen atoms, have an average hydroxyl function-ality of from 2 to 4 and have an average hydroxyl equivalent weight of from 30 to 120, or (b) aromatic amine-containing chain extenders which are free of aliphatic amine hydrogen atoms and which contain at least two aromatic amine hydrogen atoms, and (2) at least one aliphatic amine-containing chain extender having at least one primary amine group, an average aliphatic amine hydrogen functionality of from 2 to 16 and an average aliphatic amine hydrogen equivalent weight of from 15 to 500; and wherein components (A), (B) and (C) are present in quantities such that the weight percent of the theoretical reaction 28,659-F -26-product of the amine hydrogen atoms of component (B-2) with a stoichiometric quantity of component (C) based upon the total weight of Components (A), (B) and (C) is from 5 to 25 and the NCX index is from 0.6:1 to 1.50:1 with the proviso that when an NCX trimerization catalyst is also present the index is up to 5:1, the NCX index being the ratio of the total number of NCO and/or NCS groups to the total number of active hydrogen atoms contained in the formulation.
2. The process of Claim 1 characterized in that component (B-1-a) has an average hydroxyl functionality of from 2 to 3 and an average hydroxyl equivalent weight of from 30 to 70 and component (B-2) is an aliphatic amine-containing material having an average aliphatic amine hydrogen functionality of from 2 to 12 and an average aliphatic amine hydrogen equivalent weight of from 50 to 200.
3. The process of Claim 2 characterized in that component (B-1-a) has an average hydroxyl functionality of 2 and an average hydroxyl equivalent weight of from 30 to 50 and component (B-2) has an average aliphatic amine hydrogen functionality of from 4 to 8 and an average aliphatic amine hydrogen equivalent weight of from 80 to 150.
4. The process of any of Claims 1,2 or 3 characterized in that component (B-1-a) is ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol or 1,4-butane diol; component (B-1-b) is a polyphenyl-polyamine having a functionality of from 2 to 5, 1-methyl-3,5-diethyl -2,4-diaminobenzene, 3,5,3',5'-tetraethyl-4,4'-diaminodiphenylmethane, or mixtures thereof;
component (B-2) is an aminated polyoxypropylene glycol having an average amine hydrogen equivalent weight of from 60 to 110.
component (B-2) is an aminated polyoxypropylene glycol having an average amine hydrogen equivalent weight of from 60 to 110.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/114,803 US4269945A (en) | 1980-01-24 | 1980-01-24 | Reaction injection molded polyurethanes employing aliphatic amine chain extenders |
| US114,803 | 1980-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1180146A true CA1180146A (en) | 1984-12-27 |
Family
ID=22357522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000369030A Expired CA1180146A (en) | 1980-01-24 | 1981-01-21 | Reaction injection molded polyurethanes employing aliphatic amine chain extenders |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4269945A (en) |
| EP (1) | EP0033498B1 (en) |
| JP (2) | JPS56109216A (en) |
| AU (1) | AU549016B2 (en) |
| BR (1) | BR8100426A (en) |
| CA (1) | CA1180146A (en) |
| DE (1) | DE3170358D1 (en) |
| DK (1) | DK155012C (en) |
| ES (1) | ES8201191A1 (en) |
| NO (1) | NO153771C (en) |
| ZA (1) | ZA81142B (en) |
Families Citing this family (127)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3147736A1 (en) * | 1981-12-02 | 1983-06-09 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING ELASTIC MOLDED BODIES |
| JPS6043369B2 (en) * | 1982-03-04 | 1985-09-27 | 宇部興産株式会社 | Manufacturing method of impact-resistant polyamide |
| US4444910A (en) * | 1982-04-23 | 1984-04-24 | Texaco Inc. | Reaction injection molded elastomers made using a polyurethane organometallic catalyst amine terminated polyethers amine terminated chain extender and aromatic polyisocyanate |
| US4433067A (en) * | 1982-04-23 | 1984-02-21 | Texaco Inc. | Reaction injection molded elastomers prepared from amine terminated polyethers, amine terminated chain extender and aromatic polyisocyanate |
| DE3215907A1 (en) * | 1982-04-29 | 1983-11-03 | Basf Ag, 6700 Ludwigshafen | METHOD FOR PRODUCING COMPACT OR CELL-CONTAINING MOLDED BODIES FROM POLYURETE-POLYURETHANE ELASTOMERS |
| GB2121813B (en) * | 1982-05-01 | 1985-09-18 | Belzona Molecular Metalife | Polyurethane composition |
| JPS5912823A (en) * | 1982-07-13 | 1984-01-23 | Asahi Glass Co Ltd | Reaction-injection molding method |
| US4495081A (en) * | 1982-07-13 | 1985-01-22 | The Dow Chemical Company | Compositions containing polyether polyols and aliphatic primary amines |
| US4420570A (en) * | 1982-09-13 | 1983-12-13 | Texaco Inc. | Reaction injection molded elastomer containing an internal mold release made by a two-stream system |
| US4687788A (en) * | 1982-10-08 | 1987-08-18 | The Dow Chemical Company | Dimensionally stable urethane elastomers |
| US4548919A (en) * | 1982-12-17 | 1985-10-22 | American Cyanamid Company | Catalyst compositions for polyaliphatic isocyanate-based polyurethanes |
| US4530941A (en) * | 1983-01-26 | 1985-07-23 | The Dow Chemical Company | Reaction injection molded polyurethanes employing high molecular weight polyols |
| WO1984003288A1 (en) * | 1983-02-16 | 1984-08-30 | Dow Chemical Co | An active hydrogen-containing composition which provides mold release properties to a molded article, an internal mold release composition for preparing the active hydrogen-containing composition, and a process for preparing molded polymeric products from the active hydrogen-containing composition |
| US4474901A (en) * | 1983-06-08 | 1984-10-02 | Texaco Inc. | Reaction injection molded elastomers made using high molecular weight amine terminated polyethers and small amounts of low molecular weight amine terminated polyethers |
| US4448904A (en) * | 1983-06-08 | 1984-05-15 | Texaco Inc. | Reaction injection molded elastomer using a methylene bis(phenyliscoyanate) containing 2,4' isomer in amounts greater than about 10 percent |
| US4477644A (en) * | 1983-08-08 | 1984-10-16 | The Dow Chemical Company | Reaction injection molded polyurethanes employing thiapolycyclic polyahls as chain extenders |
| US4642320A (en) * | 1983-11-02 | 1987-02-10 | The Dow Chemical Company | Reaction injection molded polyureas employing high molecular weight amine-terminated polyethers |
| US4519432A (en) * | 1984-02-08 | 1985-05-28 | Lim International S.A. | Reinforced polyurethane tires |
| US4513133A (en) * | 1984-02-13 | 1985-04-23 | Texaco Inc. | Reaction injection molded elastomers containing low molecular weight organic acids |
| US4487908A (en) * | 1984-02-13 | 1984-12-11 | Texaco Inc. | Reaction injection molded elastomers containing anhydrides |
| US4499254A (en) * | 1984-02-13 | 1985-02-12 | Texaco Inc. | Reaction injection molded elastomers containing high molecular weight organic acids |
| US4487912A (en) * | 1984-02-13 | 1984-12-11 | Texaco Inc. | Reaction injection molded elastomers containing acid amides |
| US4519965A (en) * | 1984-08-23 | 1985-05-28 | Mobay Chemical Corporation | Internal mold release agent for use in reaction injection molding |
| US4582887A (en) * | 1984-08-30 | 1986-04-15 | Texaco Inc. | Reaction injection molded elastomers |
| US4607090A (en) * | 1984-08-30 | 1986-08-19 | Texaco Inc. | Reaction injection molded elastomers |
| US4585850A (en) * | 1984-08-30 | 1986-04-29 | Texaco Inc. | Flakeglass with sizing, amino, chloro, isocyanate agents coated directly onto the glass in RRIM elastomers |
| US4816543A (en) * | 1984-10-11 | 1989-03-28 | Air Products And Chemicals, Inc. | Polyurethane system using monotertiary-alkyltoluenediamine as a cross linker |
| JPH0680107B2 (en) * | 1985-02-19 | 1994-10-12 | 旭硝子株式会社 | Method for producing polyurethane urea type elastomer |
| US4581386A (en) * | 1985-05-23 | 1986-04-08 | Mobay Chemical Corporation | Internal mold release agent for use in reaction injection molding |
| US4667009A (en) * | 1985-09-25 | 1987-05-19 | The Dow Chemical Company | Polymethylene polyphenylamine modified diamine chain extenders in polyurea elastomers |
| US4689356A (en) * | 1985-12-10 | 1987-08-25 | The Dow Chemical Company | Polyurethane elastomers prepared in a two-step process using mixtures of chain extenders |
| US4659747A (en) * | 1986-05-15 | 1987-04-21 | The Dow Chemical Company | Cyclohexanedimethanol/diamine mixtures as RIM extenders |
| MX170643B (en) * | 1986-08-01 | 1993-04-12 | Ici America Inc | POLYUREAS PREPARED FROM A MIXTURE OF POLYAMINS AND A POLYISOCYANATE |
| GB8717233D0 (en) * | 1986-08-01 | 1987-08-26 | Ici America Inc | Polyureas |
| US4716193A (en) * | 1986-08-04 | 1987-12-29 | Texaco, Inc. | Reactive glass component in rim |
| EP0288067A1 (en) * | 1987-04-24 | 1988-10-26 | Asahi Glass Company Ltd. | Process for producing polyurethane elastomer and compositon as starting material therefor |
| US4806615A (en) * | 1987-06-01 | 1989-02-21 | Texaco Inc. | Reaction injection molded elastomers prepared from amine terminated polyethers, a blend of an aromatic amine terminated chain extender, a substituted acyclic aliphatic amine terminated chain extender and an aromatic polyisocyanate |
| US4902777A (en) * | 1987-06-30 | 1990-02-20 | Union Carbide Chemicals And Plastics Company, Inc. | N-(polyoxyalkyl)-n-(alkyl)amines |
| US4902768A (en) * | 1987-06-30 | 1990-02-20 | Union Carbide Chemicals And Plastics Company Inc. | Elastomers prepared from N-(polyoxyalkyl)-N-(alkyl)amines |
| US4904705A (en) * | 1987-06-30 | 1990-02-27 | Union Carbide Chemicals And Plastics Company Inc. | Polyurea foams made from N-(polyoxyalkyl)-N-(alkyl)amines |
| US4792576A (en) * | 1987-07-23 | 1988-12-20 | Mobay Corporation | Production of polyurethane moldings by the reaction injection molding process |
| USRE33609E (en) * | 1987-07-23 | 1991-06-11 | Mobay Corporation | Production of polyurethane moldings by the reaction injection molding process |
| US4960622A (en) * | 1987-12-03 | 1990-10-02 | Futura Coatings, Inc. | Artificial urethane rock |
| US4931487A (en) * | 1988-03-04 | 1990-06-05 | Dow Chemical Company | Chain extenders for polyurethanes |
| US4876292A (en) * | 1988-10-06 | 1989-10-24 | Mobay Corporation | Isocyanate reactive mixture and the use thereof in the manufacture of flexible polyurethane foams |
| US5036118A (en) * | 1988-10-17 | 1991-07-30 | The Dow Chemical Company | Reinforced polymer compositions having improved distinctness of image |
| US5010187A (en) * | 1988-11-18 | 1991-04-23 | Dow Chemical Company | Production of polyether polyols with reduced unsaturation |
| JPH01230618A (en) * | 1988-12-02 | 1989-09-14 | Asahi Glass Co Ltd | Reaction injection molding |
| US4950789A (en) * | 1989-01-25 | 1990-08-21 | The Dow Chemical Company | Aromatic polyalkyleneoxy polyamines containing amioncarbonyl or aminothiocarbonyl moieties and a compatible mixture of high and low molecular weight polyols made therefrom |
| US4937366A (en) * | 1989-02-13 | 1990-06-26 | Mobay Corporation | Process and compositions for production of moldings |
| US4963640A (en) * | 1989-02-13 | 1990-10-16 | Mobay Corporation | Process and compositions for production of moldings |
| US5070110A (en) * | 1989-08-25 | 1991-12-03 | The Dow Chemical Company | Blends of alkylene glycols and relatively high equivalent weight active hydrogen compounds containing multipurpose additives |
| US4981877A (en) * | 1989-08-25 | 1991-01-01 | The Dow Chemical Company | Blends of alkylene glycols and relatively high equivalent weight active hydrogen compounds containing multipurpose additives |
| US5057543A (en) * | 1989-08-25 | 1991-10-15 | The Dow Chemical Company | Blends of alkylene glycols and relatively high equivalent weight active hydrogen compounds containing additives |
| US5104910A (en) * | 1991-01-03 | 1992-04-14 | The Dow Chemical Company | Combustion-modified polyurethane foam |
| US5270014A (en) * | 1991-03-19 | 1993-12-14 | Krauss-Maffei Ag | Apparatus for producing a foamed mass of a polyurea elastomer |
| EP0504447A1 (en) * | 1991-03-19 | 1992-09-23 | Krauss-Maffei Aktiengesellschaft | Process and device for the preparation of foamed masses based on polyurea-elastomers |
| US5162388A (en) * | 1991-06-04 | 1992-11-10 | Texaco Chemical Company | Aliphatic polyurea elastomers |
| US5140090A (en) * | 1991-06-10 | 1992-08-18 | Texaco Chemical Company | Aliphatic polyureas from polyoxyalkylene polyamines, aliphatic diisocyanates and sym-dialkylethylenediamines |
| CA2071766A1 (en) * | 1991-07-22 | 1993-01-23 | Stephen J. Harasin | Slower reacting rim systems based upon aliphatic amine terminated polyethers |
| JPH0551524A (en) * | 1991-08-21 | 1993-03-02 | Nippon Paint Co Ltd | Polyurea resin composition for reaction injection molding |
| US5212209A (en) * | 1991-11-18 | 1993-05-18 | The Dow Chemical Company | Compatibilized internal mold release composition for preparations of foamed and fiber-reinforced polymeric articles |
| DE4218791A1 (en) * | 1992-06-06 | 1993-12-09 | Basf Ag | Process for the production of compact or cellular elastomers or molded articles containing urethane and urea groups therefrom |
| JPH09506641A (en) * | 1992-06-26 | 1997-06-30 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | Polyurethane / polyurea elastomer |
| US5567741A (en) * | 1993-06-03 | 1996-10-22 | Loctite (Ireland) Limited | Aerated anaerobic compositions with enhanced bulk stability |
| US5418260A (en) * | 1993-10-04 | 1995-05-23 | Ecp Enichem Polimeri Netherlands, B.V. | Process for the production of polyurethane articles from uretonimine based compositions and ethylene oxide rich polyether polyols |
| US5422414A (en) * | 1993-10-04 | 1995-06-06 | Ecp Enichem Polimeri Netherlands B.V. | Modified polyurea-polyurethane systems endowed with improved processability |
| US5502150A (en) * | 1994-06-29 | 1996-03-26 | Bayer Corporation | Linear HDI urethane prepolymers for rim application |
| US5473044A (en) * | 1995-04-21 | 1995-12-05 | Bayer Corporation | HDI residue in reaction injection molding |
| US5510054A (en) * | 1995-06-29 | 1996-04-23 | Dow Italia S.P.A. | Polyurethane elastomer and foam exhibiting improved abrasion resistance |
| US5668239A (en) * | 1996-06-04 | 1997-09-16 | Bayer Corporation | High modulus, high impact polyurethane/polyurea RIM |
| US5739253A (en) * | 1996-06-04 | 1998-04-14 | Bayer Corporation | RIM elastomers based on prepolymers of cycloaliphatic diisocyanates |
| US5710230A (en) * | 1996-06-04 | 1998-01-20 | Bayer Corporation | Cycloaliphatic diisocyanate based rim elastomers |
| US5739247A (en) * | 1996-08-05 | 1998-04-14 | Bayer Corporation | Production of structural reaction injection molded polyurethane products of high flex modulus and high elongation |
| US6455165B1 (en) | 1997-03-27 | 2002-09-24 | The Dow Chemical Company | Laminate of olefinic unsaturated containing polymers and active hydrogen containing polymers |
| US6133404A (en) * | 1998-12-26 | 2000-10-17 | National Institute Of Technology And Quality | Polyester and formation process thereof |
| US6653361B2 (en) | 2000-12-29 | 2003-11-25 | World Properties, Inc. | Flame retardant polyurethane composition and method of manufacture thereof |
| US20050064174A1 (en) * | 2003-09-18 | 2005-03-24 | The Boeing Company | Reaction injection molded members and method of forming |
| US20070149749A1 (en) * | 2004-09-01 | 2007-06-28 | Rukavina Thomas G | Polyurethanes prepared from polycarbonate polyols, articles and coatings prepared therefrom and methods of making the same |
| US8604153B2 (en) * | 2004-09-01 | 2013-12-10 | Ppg Industries Ohio, Inc. | Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same |
| US20070148471A1 (en) * | 2004-09-01 | 2007-06-28 | Rukavina Thomas G | Impact resistant polyurethane and poly(ureaurethane) articles and methods of making the same |
| US8399559B2 (en) * | 2004-09-01 | 2013-03-19 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
| US20090280709A1 (en) | 2004-09-01 | 2009-11-12 | Ppg Industries Ohio, Inc. | Polyurethanes, Articles and Coatings Prepared Therefrom and Methods of Making the Same |
| US11591436B2 (en) | 2004-09-01 | 2023-02-28 | Ppg Industries Ohio, Inc. | Polyurethane article and methods of making the same |
| US20070251421A1 (en) * | 2004-09-01 | 2007-11-01 | Rukavina Thomas G | Powder coatings prepared from polyurethanes and poly(ureaurethane)s, coated articles and methods of making the same |
| US8207286B2 (en) * | 2004-09-01 | 2012-06-26 | Ppg Industries Ohio, Inc | Methods for preparing polyurethanes |
| US8653220B2 (en) * | 2004-09-01 | 2014-02-18 | Ppg Industries Ohio, Inc. | Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same |
| US8859680B2 (en) * | 2004-09-01 | 2014-10-14 | Ppg Industries Ohio, Inc | Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same |
| US9598527B2 (en) * | 2004-09-01 | 2017-03-21 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
| US20070167600A1 (en) * | 2004-09-01 | 2007-07-19 | Rukavina Thomas G | Polyurethanes prepared from polycaprolactone polyols, articles and coatings prepared therefrom and methods of making the same |
| US11149107B2 (en) | 2004-09-01 | 2021-10-19 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
| US11008418B2 (en) | 2004-09-01 | 2021-05-18 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
| US8349986B2 (en) * | 2004-09-01 | 2013-01-08 | Ppg Industries Ohio, Inc. | Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same |
| US8734951B2 (en) * | 2004-09-01 | 2014-05-27 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
| US8889815B2 (en) * | 2004-09-01 | 2014-11-18 | Ppg Industries Ohio, Inc. | Reinforced polyurethanes and poly(ureaurethane)s, methods of making the same and articles prepared therefrom |
| US8933166B2 (en) * | 2004-09-01 | 2015-01-13 | Ppg Industries Ohio, Inc. | Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same |
| US9464169B2 (en) | 2004-09-01 | 2016-10-11 | Ppg Industries Ohio, Inc. | Polyurethanes, articles and coatings prepared therefrom and methods of making the same |
| US8399094B2 (en) * | 2004-09-01 | 2013-03-19 | Ppg Industries Ohio, Inc. | Multilayer laminated articles including polyurethane and/or poly(ureaurethane) layers and methods of making the same |
| US20090280329A1 (en) | 2004-09-01 | 2009-11-12 | Ppg Industries Ohio, Inc. | Polyurethanes, Articles and Coatings Prepared Therefrom and Methods of Making the Same |
| US8927675B2 (en) * | 2004-09-01 | 2015-01-06 | Ppg Industries Ohio, Inc. | Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same |
| US11248083B2 (en) | 2004-09-01 | 2022-02-15 | Ppg Industries Ohio, Inc. | Aircraft windows |
| EP2404729B1 (en) * | 2005-10-21 | 2020-06-17 | Entrotech, Inc. | Composite articles comprising protective sheets and related methods |
| US7772353B2 (en) * | 2005-12-15 | 2010-08-10 | Bayer Materialscience Llc | Fast curing aliphatic RIM elastomers |
| US20070142607A1 (en) * | 2005-12-15 | 2007-06-21 | Bayer Materialscience Llc | Weather resistant polyurethane elastomer |
| US20070142610A1 (en) * | 2005-12-15 | 2007-06-21 | Harasin Stephen J | Polyurethane elastomers comprising allophanate modified isocyanates |
| US20070142601A1 (en) * | 2005-12-15 | 2007-06-21 | Bayer Materialscience Llc | RIM elastomers based on isocyanurates of isophorone diisocyanate and prepolymers thereof |
| WO2007085147A1 (en) * | 2006-01-25 | 2007-08-02 | Wai Sum Industrial (Dongguan) Company Limited | Artificial flower of polyether polyurethane and method of its fabrication |
| US20070185302A1 (en) * | 2006-02-08 | 2007-08-09 | Bayer Materialscience Llc | Polyurethane elastomers comprising allophanate modified isocyanates |
| US8545960B2 (en) * | 2006-10-23 | 2013-10-01 | Entrotech, Inc. | Articles comprising protective sheets and related methods |
| CN101778877B (en) | 2007-07-23 | 2013-01-02 | 陶氏环球技术公司 | Two part polyurethane curable composition having substantially consistent g-modulus across the range of use temperatures |
| US10035932B2 (en) * | 2007-09-25 | 2018-07-31 | Aero Advanced Paint Technology, Inc. | Paint replacement films, composites therefrom, and related methods |
| EP2247638A1 (en) * | 2007-12-20 | 2010-11-10 | DSM IP Assets B.V. | Hybrid polyurethane block copolymers with thermoplastic processability and thermoset properties |
| US10981371B2 (en) * | 2008-01-19 | 2021-04-20 | Entrotech, Inc. | Protected graphics and related methods |
| WO2011054774A1 (en) | 2009-11-05 | 2011-05-12 | Akzo Nobel Chemicals International B.V. | Aqueous silica dispersion |
| WO2011075254A1 (en) | 2009-12-16 | 2011-06-23 | Dow Global Technologies Llc | Isocyanatosilane-capped polyols |
| EP2602109A3 (en) | 2011-12-06 | 2013-07-10 | Alporit AG | Styrene polymer foam compound body |
| US8748532B2 (en) * | 2012-06-09 | 2014-06-10 | The Boeing Company | Flexible, low temperature, filled composite material compositions, coatings, and methods |
| BR112015012793A2 (en) | 2012-12-04 | 2017-07-11 | Henkel Ag & Co Kgaa | adhesive system for the preparation of lignocellulosic composites |
| EP2848638B1 (en) | 2013-09-11 | 2020-04-08 | Henkel AG & Co. KGaA | Adhesive system for lignocellulosic substrates having high levels of extractives |
| EP2871194B1 (en) | 2013-11-12 | 2016-08-03 | nolax AG | Dual component adhesive |
| WO2015100128A1 (en) | 2013-12-23 | 2015-07-02 | Dow Global Technologies Llc | Adhesive containing high solid copolymer polyol polyurethane prepolymer |
| WO2016094809A1 (en) | 2014-12-12 | 2016-06-16 | Carrier Corporation | Heat transfer system with coated fluid conduit |
| EP4328280A2 (en) | 2016-09-20 | 2024-02-28 | PPG Advanced Surface Technologies, LLC | Paint film appliques with reduced defects, articles, and methods |
| EP3363840A1 (en) | 2017-02-17 | 2018-08-22 | Henkel AG & Co. KGaA | Two-component polyurethane composition comprising a latent catalyst |
| EP3798246B1 (en) | 2019-09-27 | 2024-01-31 | Henkel AG & Co. KGaA | One component (1k) composition based on modified epoxy resin |
| WO2022060685A1 (en) | 2020-09-15 | 2022-03-24 | Dow Global Technologies Llc | Low odor polyurethane adhesives |
| WO2023280560A1 (en) | 2021-07-05 | 2023-01-12 | Henkel Ag & Co. Kgaa | High performance silicone-epoxy composition |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA784293A (en) | 1968-04-30 | Schroter Rudolf | Polyethers | |
| CA863223A (en) | 1971-02-09 | P. Strassel Albert | Process for the production of polyurethane polyurea | |
| US3231619A (en) * | 1959-12-18 | 1966-01-25 | Jefferson Chem Co Inc | Basic primary amino polyether compositions |
| US3161682A (en) * | 1960-04-28 | 1964-12-15 | Jefferson Chem Co Inc | Method for preparing polyoxyalkylene primary amines |
| US3155728A (en) * | 1960-10-11 | 1964-11-03 | Jefferson Chem Co Inc | Method for the preparation of polyglycol primary amine |
| US3236895A (en) * | 1960-12-12 | 1966-02-22 | Dow Chemical Co | Polyoxyalkylenepolyamines |
| NL272690A (en) * | 1960-12-19 | |||
| US3155657A (en) * | 1961-07-20 | 1964-11-03 | Jefferson Chem Co Inc | Process for the production of polyglycolamine and morpholine |
| US3267050A (en) * | 1962-05-21 | 1966-08-16 | Union Carbide Corp | Foamed organic polyisocyanate-amine reaction products |
| US3436359A (en) * | 1965-10-14 | 1969-04-01 | Minnesota Mining & Mfg | Polyether polyprimary polyamines and elastomeric products thereof |
| US3558529A (en) * | 1967-05-03 | 1971-01-26 | Union Carbide Corp | Urethane polymers having improved stiffness-temperature properties |
| BE754571A (en) * | 1969-08-07 | 1971-01-18 | Bayer Ag | SEGMENTED POLYURETHANE ELASTOMERS |
| US3666788A (en) * | 1969-08-22 | 1972-05-30 | Jefferson Chem Co Inc | Cyanoalkylated polyoxyalkylene polyamines |
| US3668173A (en) * | 1969-12-10 | 1972-06-06 | Allied Chem | Novel polyurethane-urea composition |
| US3654370A (en) * | 1970-08-28 | 1972-04-04 | Jefferson Chem Co Inc | Process for preparing polyoxyalkylene polyamines |
| US3660319A (en) * | 1970-12-08 | 1972-05-02 | Jefferson Chem Co Inc | Tertiary polyoxyalkylenepolyamines |
| US3838076A (en) * | 1973-03-12 | 1974-09-24 | Jefferson Chem Co Inc | Polyurethane foams from partially aminated polyether polyols |
| US3847992A (en) * | 1973-03-12 | 1974-11-12 | Jefferson Chem Co Inc | Partially aminated polyoxyalkylene polyols |
| US3984360A (en) * | 1974-11-12 | 1976-10-05 | Witco Chemical Corporation | Lead-free sprayable polyurethane system and rigid cellular products |
| US4089835A (en) * | 1975-03-27 | 1978-05-16 | Bayer Aktiengesellschaft | Stable polyurethane dispersions and process for production thereof |
| US4070530A (en) * | 1975-10-30 | 1978-01-24 | Monsanto Company | Catalytic amination of polymeric polyols and resulting amino substituted polymers |
| US4048105A (en) * | 1975-12-19 | 1977-09-13 | Mccord Corporation | High density urethane foam for rim |
| US4049636A (en) * | 1976-02-25 | 1977-09-20 | Uniroyal, Inc. | Thermally stable polyurethane elastomer useful in molding flexible automobile exterior body parts |
| DE2622951B2 (en) * | 1976-05-21 | 1979-09-06 | Bayer Ag, 5090 Leverkusen | Process for the production of elastic shaped bodies |
| US4107106A (en) * | 1976-11-22 | 1978-08-15 | Union Carbide Corporation | Phenol-aldehyde-amine resin/glycol curatives for energy absorbing polyurethanes |
| DE2720166C2 (en) * | 1977-05-05 | 1985-09-19 | Bayer Ag, 5090 Leverkusen | Process for the production of polyurethane elastomers |
| ZA793346B (en) * | 1978-07-05 | 1980-06-25 | Dow Chemical Co | Reaction injection molded polyurethanes |
-
1980
- 1980-01-24 US US06/114,803 patent/US4269945A/en not_active Expired - Lifetime
-
1981
- 1981-01-06 AU AU66021/81A patent/AU549016B2/en not_active Expired
- 1981-01-09 ZA ZA00810142A patent/ZA81142B/en unknown
- 1981-01-21 CA CA000369030A patent/CA1180146A/en not_active Expired
- 1981-01-23 DK DK031281A patent/DK155012C/en not_active IP Right Cessation
- 1981-01-23 DE DE8181100504T patent/DE3170358D1/en not_active Expired
- 1981-01-23 NO NO810244A patent/NO153771C/en not_active IP Right Cessation
- 1981-01-23 ES ES498754A patent/ES8201191A1/en not_active Expired
- 1981-01-23 EP EP81100504A patent/EP0033498B1/en not_active Expired
- 1981-01-23 BR BR8100426A patent/BR8100426A/en not_active IP Right Cessation
- 1981-01-24 JP JP954281A patent/JPS56109216A/en active Granted
-
1987
- 1987-10-14 JP JP62259447A patent/JPS63248818A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NO153771B (en) | 1986-02-10 |
| ES498754A0 (en) | 1981-12-01 |
| NO810244L (en) | 1981-07-27 |
| BR8100426A (en) | 1981-08-11 |
| JPS63248818A (en) | 1988-10-17 |
| EP0033498A1 (en) | 1981-08-12 |
| JPS6136843B2 (en) | 1986-08-20 |
| DE3170358D1 (en) | 1985-06-13 |
| EP0033498B1 (en) | 1985-05-08 |
| US4269945A (en) | 1981-05-26 |
| JPS56109216A (en) | 1981-08-29 |
| NO153771C (en) | 1986-05-21 |
| ZA81142B (en) | 1982-08-25 |
| JPH0314845B2 (en) | 1991-02-27 |
| DK31281A (en) | 1981-07-25 |
| AU6602181A (en) | 1981-07-30 |
| AU549016B2 (en) | 1986-01-09 |
| DK155012C (en) | 1989-05-29 |
| ES8201191A1 (en) | 1981-12-01 |
| DK155012B (en) | 1989-01-23 |
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