CA2084155A1 - Process for preparing reaction injection moldings - Google Patents

Process for preparing reaction injection moldings

Info

Publication number
CA2084155A1
CA2084155A1 CA002084155A CA2084155A CA2084155A1 CA 2084155 A1 CA2084155 A1 CA 2084155A1 CA 002084155 A CA002084155 A CA 002084155A CA 2084155 A CA2084155 A CA 2084155A CA 2084155 A1 CA2084155 A1 CA 2084155A1
Authority
CA
Canada
Prior art keywords
reaction injection
reaction
injection moldings
reaction mixture
preparing reaction
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.)
Granted
Application number
CA002084155A
Other languages
French (fr)
Other versions
CA2084155C (en
Inventor
Robson M. Mafoti
Josef Sanders
Robert P. Yeater
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Corp
Original Assignee
Miles Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miles Inc filed Critical Miles Inc
Publication of CA2084155A1 publication Critical patent/CA2084155A1/en
Application granted granted Critical
Publication of CA2084155C publication Critical patent/CA2084155C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/675—Low-molecular-weight compounds
    • 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
    • C08G18/6505—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6523—Compounds of group C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
    • C08G18/6529—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
    • 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
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/6795—Unsaturated polyethers
    • 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
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/68—Unsaturated polyesters
    • 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
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/69—Polymers of conjugated dienes
    • C08G18/696—Polymers of conjugated dienes containing heteroatoms other than oxygen and other than the heteroatoms of copolymerised vinyl monomers
    • 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

Disclosed herein is a process for the preparation of a reaction injection molded elastomer comprising injecting a reaction mixture into a closed mold via a RIM machine, with the ratio of components being such that the isocyanate index is from about 70 to about 130, said reaction mixture comprising (a) an organic di- and/or polyisocyanate, (b) an amine terminated chain extender, and (c) a compound which is derived from the reaction of a polyfunctional acetoacetic acid ester and an aliphatic amine having amino groups of different reactivity.
CA002084155A 1991-12-09 1992-11-30 Process for preparing reaction injection moldings Expired - Fee Related CA2084155C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/805,735 US5356946A (en) 1991-12-09 1991-12-09 Process for preparing reaction injection moldings
US07/805,735 1991-12-09

Publications (2)

Publication Number Publication Date
CA2084155A1 true CA2084155A1 (en) 1993-06-10
CA2084155C CA2084155C (en) 2003-10-14

Family

ID=25192375

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002084155A Expired - Fee Related CA2084155C (en) 1991-12-09 1992-11-30 Process for preparing reaction injection moldings

Country Status (2)

Country Link
US (1) US5356946A (en)
CA (1) CA2084155C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5516872A (en) * 1994-07-05 1996-05-14 Bayer Corporation Preparation of cast elastomers using aminocrotonate-terminated polyether chain extenders
US5464920A (en) * 1994-07-05 1995-11-07 Bayer Corporation Cast elastomers prepared from aminocrotonates
US5674942A (en) * 1995-03-31 1997-10-07 Johnson & Johnson Vision Products, Inc. Interpenetrating polymer networks for contact lens production
US5656210A (en) * 1995-03-31 1997-08-12 Johnson & Johnson Vision Products, Inc. Reaction injection molding as a process to prepare contact lenses
US6849647B1 (en) * 1999-07-21 2005-02-01 Kowa Company, Ltd. Amide compounds and medications containing the same technical field

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935484A1 (en) * 1969-07-12 1971-01-14 Bayer Ag Process for the production of polyamides
DE1935485A1 (en) * 1969-07-12 1971-01-21 Bayer Ag Process for the production of polyamides with urethane and / or urea groups
DE3147736A1 (en) * 1981-12-02 1983-06-09 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING ELASTIC MOLDED BODIES
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
US4396729A (en) * 1982-04-23 1983-08-02 Texaco Inc. Reaction injection molded elastomer containing an internal mold release made by a two-stream system
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
US4530941A (en) * 1983-01-26 1985-07-23 The Dow Chemical Company Reaction injection molded polyurethanes employing high molecular weight polyols
US5098984A (en) * 1990-06-15 1992-03-24 Mobay Corporation Isocyanate terminated prepolymers and the use thereof in a rim process

Also Published As

Publication number Publication date
CA2084155C (en) 2003-10-14
US5356946A (en) 1994-10-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed