CA2102638C - Compositions for the impregnation of mineral building materials - Google Patents
Compositions for the impregnation of mineral building materials Download PDFInfo
- Publication number
- CA2102638C CA2102638C CA002102638A CA2102638A CA2102638C CA 2102638 C CA2102638 C CA 2102638C CA 002102638 A CA002102638 A CA 002102638A CA 2102638 A CA2102638 A CA 2102638A CA 2102638 C CA2102638 C CA 2102638C
- Authority
- CA
- Canada
- Prior art keywords
- weight
- organosilicon compound
- organic
- composition
- basic nitrogen
- 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 - Fee Related
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 15
- 239000011707 mineral Substances 0.000 title claims abstract description 15
- 239000004566 building material Substances 0.000 title claims abstract description 14
- 238000005470 impregnation Methods 0.000 title claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 40
- 150000003961 organosilicon compounds Chemical class 0.000 claims abstract description 29
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 229920001296 polysiloxane Chemical class 0.000 claims abstract description 21
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 20
- 239000011737 fluorine Substances 0.000 claims abstract description 20
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 13
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 13
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 10
- 150000007524 organic acids Chemical class 0.000 claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 239000006185 dispersion Substances 0.000 claims description 15
- 239000000470 constituent Substances 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- 239000004567 concrete Substances 0.000 description 23
- 150000003254 radicals Chemical class 0.000 description 19
- -1 hydrocar-bon radicals Chemical class 0.000 description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 12
- 229960005419 nitrogen Drugs 0.000 description 12
- 206010037844 rash Diseases 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000006253 efflorescence Methods 0.000 description 9
- 235000010755 mineral Nutrition 0.000 description 9
- 239000005871 repellent Substances 0.000 description 9
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 230000001680 brushing effect Effects 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 6
- 229960000583 acetic acid Drugs 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 238000009416 shuttering Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 3
- 239000004815 dispersion polymer Substances 0.000 description 3
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 3
- VUUAEBBAUMJPRE-UHFFFAOYSA-N ethyl n-fluorocarbamate Chemical compound CCOC(=O)NF VUUAEBBAUMJPRE-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 150000004756 silanes Chemical class 0.000 description 3
- MAUMSNABMVEOGP-UHFFFAOYSA-N (methyl-$l^{2}-azanyl)methane Chemical compound C[N]C MAUMSNABMVEOGP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- OCBFFGCSTGGPSQ-UHFFFAOYSA-N [CH2]CC Chemical compound [CH2]CC OCBFFGCSTGGPSQ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- ZYMKZMDQUPCXRP-UHFFFAOYSA-N fluoro prop-2-enoate Chemical compound FOC(=O)C=C ZYMKZMDQUPCXRP-UHFFFAOYSA-N 0.000 description 2
- 239000012362 glacial acetic acid Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UWSYCPWEBZRZNJ-UHFFFAOYSA-N trimethoxy(2,4,4-trimethylpentyl)silane Chemical compound CO[Si](OC)(OC)CC(C)CC(C)(C)C UWSYCPWEBZRZNJ-UHFFFAOYSA-N 0.000 description 2
- GHPYJLCQYMAXGG-WCCKRBBISA-N (2R)-2-amino-3-(2-boronoethylsulfanyl)propanoic acid hydrochloride Chemical compound Cl.N[C@@H](CSCCB(O)O)C(O)=O GHPYJLCQYMAXGG-WCCKRBBISA-N 0.000 description 1
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- DUNJZQYOUGJTCR-UHFFFAOYSA-N 1-n'-(3-trimethoxysilylpropyl)ethane-1,1-diamine Chemical compound CO[Si](OC)(OC)CCCNC(C)N DUNJZQYOUGJTCR-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 235000014786 phosphorus Nutrition 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229940058401 polytetrafluoroethylene Drugs 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/495—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as oligomers or polymers
- C04B41/4961—Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/64—Compounds having one or more carbon-to-metal of carbon-to-silicon linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/21—Efflorescence resistance
Abstract
Compositions for the impregnation of mineral building materials, which comprise (A) salts of organic or inorganic acids and an organopolysiloxane siloxane or mixture of organopolysiloxanes containing SiC-bonded radicals containing basic nitrogen, in amounts of at least 0.5% by weight, based on the weight of the organopoly-siloxane, optionally (B) an organosilicon compound containing basic nitrogen, in amounts of 0 to 0.5% by weight, based on the weight of the organosilicon compound, and (C) a fluorine-containing organic or organosilicon compound.
Description
210~~~8 Docket: WA 9202-S
Paper No. 1 COMPOSITIONS FOR THE IMPREGNATION
OF MINERAL BUILDING MATERIALS
Field of Invention The invention relates to compositions and methods for impregna-tion of mineral building materials, in particular for water-repel-lent, oil-repelleni~ and efflorescence-preventing impregnation.
Backcrround Art Numerous attempi~s have been made to render mineral building materials water-repellent and oil-repellent and to prevent the formation of pale, bloom-like discolorations, which are called efflorescence. Troublesome white stains which render the corre-sponding component unusable for applications in a visible area occur in particular on freshly de-shuttered concrete which has not yet set or fiber cement which has not yet set and which is stored in the presence of moisture immediately after production. This efflorescence must then be removed with effort. Reference is made in this context to, for example, DE-B-21 28 652 (Michoud et al., published on May 2:?, 1975), which discloses a process for cleaning and sealing concrei~e buildings in which the concrete surface is first cleaned with a mixture of formic acid, hydroxyethylamine and aluminum triformatca and then impregnated.
Furthermore, waiver repellent treatment of high-density concrete with the aid of organosilicon compounds containing alkoxy groups is described in EP 101 816 B (Dynamit Nobel: published on December 18, 1985) and corresponding US 4,716,051, issued December 19, 1987 and in EP 392 253 A (Th. Goldschmidt AG; published on October 17, 1990) and corresponding US 5,091,002, issued February 25, 1992, ~lo~s3s and fluorine chemic:als are disclosed in DE 25 26 287 C (Wacker-Chemie GmbH; published on September 30, 1982) and corresponding US
4,125,673, issued on November 14, 1978, as oil- and stain-repel-lent agents.
Summary of the Invention The invention rs:lates to compositions for the impregnation of mineral building materials, which comprise (A) a salt of an organic or inorganic acid and organopolysiloxane containing Sic:-bonded radicals containing basic nitrogen in amounts of at least 0.5% by weight, based on the weight of the organopolysiloxane, optionally (B) an organosilic:on compound containing basic nitrogen, in amounts of 0 t:o 0.5% by weight, based on the weight of the organosilicon compound, and (C) a fluorine-containing organic or organosilicon compound.
The term "basic nitrogen" as used in this invention defines total nitrogen in the respective silicone compounds of (A) and (B).
The organopolysiloxanes from which constituent (A) of the composition according to the invention is obtainable by reaction with an organic or inorganic acid. These reaction products are preferably of the i:ormula RaR~~b(OR2~cSi04_a_b_c (I) in which R can be identical or different and denotes hydrogen or monovalent, SiC-bonded organic radicals which are free from basic nitrogen, R1 can bEa identical or different and denotes mo~novalent, SiC-bonded radicals containing basic nitrogen, R2 can be identical or different and denotes hydrogen atoms or monovalent organic P° radicals, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3 and c is 0, 1, 2 0:
Paper No. 1 COMPOSITIONS FOR THE IMPREGNATION
OF MINERAL BUILDING MATERIALS
Field of Invention The invention relates to compositions and methods for impregna-tion of mineral building materials, in particular for water-repel-lent, oil-repelleni~ and efflorescence-preventing impregnation.
Backcrround Art Numerous attempi~s have been made to render mineral building materials water-repellent and oil-repellent and to prevent the formation of pale, bloom-like discolorations, which are called efflorescence. Troublesome white stains which render the corre-sponding component unusable for applications in a visible area occur in particular on freshly de-shuttered concrete which has not yet set or fiber cement which has not yet set and which is stored in the presence of moisture immediately after production. This efflorescence must then be removed with effort. Reference is made in this context to, for example, DE-B-21 28 652 (Michoud et al., published on May 2:?, 1975), which discloses a process for cleaning and sealing concrei~e buildings in which the concrete surface is first cleaned with a mixture of formic acid, hydroxyethylamine and aluminum triformatca and then impregnated.
Furthermore, waiver repellent treatment of high-density concrete with the aid of organosilicon compounds containing alkoxy groups is described in EP 101 816 B (Dynamit Nobel: published on December 18, 1985) and corresponding US 4,716,051, issued December 19, 1987 and in EP 392 253 A (Th. Goldschmidt AG; published on October 17, 1990) and corresponding US 5,091,002, issued February 25, 1992, ~lo~s3s and fluorine chemic:als are disclosed in DE 25 26 287 C (Wacker-Chemie GmbH; published on September 30, 1982) and corresponding US
4,125,673, issued on November 14, 1978, as oil- and stain-repel-lent agents.
Summary of the Invention The invention rs:lates to compositions for the impregnation of mineral building materials, which comprise (A) a salt of an organic or inorganic acid and organopolysiloxane containing Sic:-bonded radicals containing basic nitrogen in amounts of at least 0.5% by weight, based on the weight of the organopolysiloxane, optionally (B) an organosilic:on compound containing basic nitrogen, in amounts of 0 t:o 0.5% by weight, based on the weight of the organosilicon compound, and (C) a fluorine-containing organic or organosilicon compound.
The term "basic nitrogen" as used in this invention defines total nitrogen in the respective silicone compounds of (A) and (B).
The organopolysiloxanes from which constituent (A) of the composition according to the invention is obtainable by reaction with an organic or inorganic acid. These reaction products are preferably of the i:ormula RaR~~b(OR2~cSi04_a_b_c (I) in which R can be identical or different and denotes hydrogen or monovalent, SiC-bonded organic radicals which are free from basic nitrogen, R1 can bEa identical or different and denotes mo~novalent, SiC-bonded radicals containing basic nitrogen, R2 can be identical or different and denotes hydrogen atoms or monovalent organic P° radicals, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3 and c is 0, 1, 2 0:
3, with the proviso that the sum of a, b and c is less than or equal to 3 and the radical R1 is present in an amount of more tha.~.
0.5% by weight ot: basic nitrogen per organopolysiloxane molecule.
The radicals Ft are preferably optionally substituted hydrocar-bon radicals hav~.ng 1 to 20 carbon atoms, with hydrocarbon radi-Gals having 1 to 8 carbon atoms, in particular the methyl and the isooctyl radical, being particularly preferred.
Preferably, a hydrocarbon radical, in particular a methyl radi-cal, is also bonded to each silicon atom onto which a hydrogen atom is bonded.
The radicals R1 are preferably those of the formula R32~4- (II) in which R3 can be identical or different and denotes hydrogen or a monovalent hydrocarbon radical which is optionally substituted by amino groups and R4 denotes a divalent hydrocarbon radical.
The radical R'3 is preferably the aminoethyl radical.
Preferably, apt least one hydrogen atom is bonded to each nitro-gen atom in the :radicals of formula (II).
The radical R'4 are preferably divalent hydrocarbon radicals having 1 to 10 carbon atoms, preferably 1 to 4 carbon atoms, in particular the n-propylene radical.
Examples of radicals R1 are H2N(CH2)g-, H2N(CH2)2NH(CH2)2-, H2N(CH2)2NH(CH2)3-~ H2N(CH2)2-~ H3CNH(CH2)3-, C2H5NH(CH2)3-, H3CNH(CH2)2-~ C2~H5~(CH2)2-~ H2N(CH2)4-~ H2N(CH2)5-H(NHCH2CH2)3', C4H9~(CH2)2~(CH2)2-, cyclo-C6H11NH(CH2)g-, cyclo-C6H11NH(CH2)2-, (CH3)2N(CH2)3-. (CH3)2N(CH2)2-~
(C2H5)2N(CH2)3- and (C2H5)2N(CH2)2-.
2~o~s38 The radicals R1 are preferably H2N(CH2)3- and H2N(CH2)2NH(CH2)3-,, H2N(CH2)2NH(CH2)3- being particularly prefer-red.
The radicals R1 can a:Lso be cyclic amine radicals, such as piperidyl radicals..
The radicals R2 are preferably hydrogen atoms and alkyl radi-cals having 1 to 4 carbon atoms, the methyl, ethyl and propyl radical being prefEarred.
The average value of a is 0 to 2, preferably 0 to 1.8. The average value of b is 0.:1 to 0.6, preferably 0.15 to 0.30 and the average value of c is 0 to 0.8, preferably 0.01 to 0.6.
Examples of organopolysiloxanes comprising units of formula (I) are the reaction product of tetraethyl silicate with N-(2-amino-ethyl)-3-aminoprop5rltrimethoxysilane having a viscosity of 6 to 7 mm2/s (25°C) and an amine number of 2.15 (siloxane i), the reac-tion product of a,w-dihydroxydimethylpolysiloxane and N-(1-amino-ethyl)-3-aminopropyltrimethoxysilane having a viscosity of 20 to 50 mm2/s (25°C) anti an amine number of between 2.7 and 3.2 (siloxane ii) and t:he reaction product of CH3Si(OC2H5)p.g01.1 and N-(2-aminoethyl)-3--aminopropyltrimethoxysilane having a viscosity of 60 mm2/s (25°C) and an amine number of 2.15 (siloxane iii), (siloxane ii) and (siloxane iii) being preferred and (siloxane ii) being particularly preferred and the amine number corresponding to the number of ml oi= 1 N HC1 required to neutralize 1 g of sub-stance.
The organopolysiloxanes comprising units of the formula (I) preferably have a viscosity of 6 to 60 mm2/s, at 25°C.
The organic or :inorganic acids used for the preparation of constituent (A) of the impregnating agent according to the inven-tion, can be the same as those which have been employed for the preparation of sali~s of an organic or inorganic acid and organo-polysiloxane with SiC-bonded radicals containing basic nitrogen.
Examples of such acids are HC1, H2S04, acetic acid, propionic acid and diethyl hydrogE:n phosphate, acetic acid and propionic acid being preferred and acetic acid being particularly preferred.
The organopolysiloxane salt employed as component (A) can be an individual type of this salt or a mixture of at least two types of such a salt.
The organosilicon compound (B) employed preferably comprises units of formula R5d(OR6)eSi04-d-a (III) in which R5 can be identical or different and denotes hydrogen or monovalent, SiC-bonded organic radicals, R6 can be identical or different and denoi~es hydrogen atoms or monovalent organic radi-cals, d is 0, 1, 2,, 3 or 4 and a is 0, 1, 2, 3 or 4, with the proviso that the sum of d+e is less than or equal to 4 and the content of basic n:Ltrogen is 0 to 0.5% by weight, based on the weight of the particular organosilicon compound.
The radicals R5 are preferably hydrocarbon radicals having 1 to 8 carbon atoms, then methyl and isooctyl radical being preferred.
The radicals R6 are preferably the methyl, ethyl and propyl radical, the methy:L and ethyl radical being preferred.
The organosilicon compound comprising units of formula (III) can be a silane where the sum of d+e is 4.
The organosilicon compounds comprising units of formula (III) can also be organopolysiloxanes where the sum of d+e is less than or equal to 3.
0.5% by weight ot: basic nitrogen per organopolysiloxane molecule.
The radicals Ft are preferably optionally substituted hydrocar-bon radicals hav~.ng 1 to 20 carbon atoms, with hydrocarbon radi-Gals having 1 to 8 carbon atoms, in particular the methyl and the isooctyl radical, being particularly preferred.
Preferably, a hydrocarbon radical, in particular a methyl radi-cal, is also bonded to each silicon atom onto which a hydrogen atom is bonded.
The radicals R1 are preferably those of the formula R32~4- (II) in which R3 can be identical or different and denotes hydrogen or a monovalent hydrocarbon radical which is optionally substituted by amino groups and R4 denotes a divalent hydrocarbon radical.
The radical R'3 is preferably the aminoethyl radical.
Preferably, apt least one hydrogen atom is bonded to each nitro-gen atom in the :radicals of formula (II).
The radical R'4 are preferably divalent hydrocarbon radicals having 1 to 10 carbon atoms, preferably 1 to 4 carbon atoms, in particular the n-propylene radical.
Examples of radicals R1 are H2N(CH2)g-, H2N(CH2)2NH(CH2)2-, H2N(CH2)2NH(CH2)3-~ H2N(CH2)2-~ H3CNH(CH2)3-, C2H5NH(CH2)3-, H3CNH(CH2)2-~ C2~H5~(CH2)2-~ H2N(CH2)4-~ H2N(CH2)5-H(NHCH2CH2)3', C4H9~(CH2)2~(CH2)2-, cyclo-C6H11NH(CH2)g-, cyclo-C6H11NH(CH2)2-, (CH3)2N(CH2)3-. (CH3)2N(CH2)2-~
(C2H5)2N(CH2)3- and (C2H5)2N(CH2)2-.
2~o~s38 The radicals R1 are preferably H2N(CH2)3- and H2N(CH2)2NH(CH2)3-,, H2N(CH2)2NH(CH2)3- being particularly prefer-red.
The radicals R1 can a:Lso be cyclic amine radicals, such as piperidyl radicals..
The radicals R2 are preferably hydrogen atoms and alkyl radi-cals having 1 to 4 carbon atoms, the methyl, ethyl and propyl radical being prefEarred.
The average value of a is 0 to 2, preferably 0 to 1.8. The average value of b is 0.:1 to 0.6, preferably 0.15 to 0.30 and the average value of c is 0 to 0.8, preferably 0.01 to 0.6.
Examples of organopolysiloxanes comprising units of formula (I) are the reaction product of tetraethyl silicate with N-(2-amino-ethyl)-3-aminoprop5rltrimethoxysilane having a viscosity of 6 to 7 mm2/s (25°C) and an amine number of 2.15 (siloxane i), the reac-tion product of a,w-dihydroxydimethylpolysiloxane and N-(1-amino-ethyl)-3-aminopropyltrimethoxysilane having a viscosity of 20 to 50 mm2/s (25°C) anti an amine number of between 2.7 and 3.2 (siloxane ii) and t:he reaction product of CH3Si(OC2H5)p.g01.1 and N-(2-aminoethyl)-3--aminopropyltrimethoxysilane having a viscosity of 60 mm2/s (25°C) and an amine number of 2.15 (siloxane iii), (siloxane ii) and (siloxane iii) being preferred and (siloxane ii) being particularly preferred and the amine number corresponding to the number of ml oi= 1 N HC1 required to neutralize 1 g of sub-stance.
The organopolysiloxanes comprising units of the formula (I) preferably have a viscosity of 6 to 60 mm2/s, at 25°C.
The organic or :inorganic acids used for the preparation of constituent (A) of the impregnating agent according to the inven-tion, can be the same as those which have been employed for the preparation of sali~s of an organic or inorganic acid and organo-polysiloxane with SiC-bonded radicals containing basic nitrogen.
Examples of such acids are HC1, H2S04, acetic acid, propionic acid and diethyl hydrogE:n phosphate, acetic acid and propionic acid being preferred and acetic acid being particularly preferred.
The organopolysiloxane salt employed as component (A) can be an individual type of this salt or a mixture of at least two types of such a salt.
The organosilicon compound (B) employed preferably comprises units of formula R5d(OR6)eSi04-d-a (III) in which R5 can be identical or different and denotes hydrogen or monovalent, SiC-bonded organic radicals, R6 can be identical or different and denoi~es hydrogen atoms or monovalent organic radi-cals, d is 0, 1, 2,, 3 or 4 and a is 0, 1, 2, 3 or 4, with the proviso that the sum of d+e is less than or equal to 4 and the content of basic n:Ltrogen is 0 to 0.5% by weight, based on the weight of the particular organosilicon compound.
The radicals R5 are preferably hydrocarbon radicals having 1 to 8 carbon atoms, then methyl and isooctyl radical being preferred.
The radicals R6 are preferably the methyl, ethyl and propyl radical, the methy:L and ethyl radical being preferred.
The organosilicon compound comprising units of formula (III) can be a silane where the sum of d+e is 4.
The organosilicon compounds comprising units of formula (III) can also be organopolysiloxanes where the sum of d+e is less than or equal to 3.
Examples of silanes of formula (III) are i-octyltrimethoxy-silane and i-octylt:riethoxysilane.
Examples of organopolysiloxanes comprising units of formula (III) are methylethoxypo:Lysiloxanes, dimethylpolysiloxanes and i-octylmethoxypolysiloxanes.
The organopolysiloxanes comprising units of formula (III) preferably have a ~riscosity of 5 to 2000 mm2/s, and more prefera-bly 10 to 500 mm2/rn, in each case at 25°C.
The organosilicon compounds (B) employed are preferably silanes and low molecular weight siloxanes, in particular silanes.
If an organosilLcon compound (B) is used for the preparation of the composition according to the invention, this is employed in amounts of 0.1 to __°i parts by weight, and more preferably 1.5 to 3 parts by weight, pear part by weight of component (A).
The compositions according to the invention preferably com-prise component (B).
The organosilicon compound (B) employed can be one type or a mixture of at least: two types of such an organosilicon compound.
Compounds which can be employed as component (A) in the compo-sition according to the :invention and compounds which can be employed as componE:nt (B) in the composition according to the invention as well as mixtures of components (A) and (B) are already know. Refs:rence may be made in this context to, for example, US 4,661,__°i51, issued April 28, 1987 (blacker-Chemie GmbH:
published April 28,. 1984;1 and corresponding DE 34 47 636 A1 (pub-lished on July 3, ~~~986) .
The fluorine-containing organic compounds (C) are preferably polymeric compound:a which consist of fluorine and carbon atoms and, if appropriate:, chlorine, hydrogen, oxygen, sulfur, phospho-rus and/or nitrogen atoms.
Examples of such fluorine compounds are polytetrafluoroethy-lene, copolymers oi= tetrafluoroethylene and hexafluoropropylene, polytrifluorochloroethylene, fluorourethane, copolymers of trifluorochloroethylene and other monomers, such as vinylidene fluoride, vinyl ch:Loride, vinyl acetate or styrene; fluorinated acrylic resins, such as polymers of 1,1-dihydroperfluorobutyl acrylate and copolymers of n-butyl acrylate, N-methylolacrylamide and at least 35% by weight of a methacrylic acid ester of the formula H;; C O
CH2==C-C-O-CH2CH2(CF2)mCF3, in which m is an integer having a value of from 1 to 13.
The fluorine-containing organic compounds are preferably fluo-rinated polyacrylaites and polyurethanes.
The fluorine-containing organosilicon compounds (C) are prefer-ably 3,3,3-trifluo:ro-n-propylmethylpolysiloxanes terminated with trimethylsilyl groups.
The fluorine-containing organic or organosilicon compound (C) employed according to the invention can be one type or a mixture of at least two types of such a compound.
The compositions according to the invention comprise constitu-ent (C) in amounts of 0.1 to 50 parts by weight, preferably 1 to 5 parts by weight, per part by weight of constituent (A).
The fluorine-containing organic or organosilicon compound (C) is preferably employed as an aqueous dispersion, containing an organic solvent, or as a solution in an organic solvent.
The concentration of the fluorine-containing organic or organo-silicon compounds in their dispersions or solutions is preferably in each case not more than 20% by weight, based on the total weight of the dispersion or solution.
Examples of the organic solvent which the aqueous dispersion of component (C) can contain or in which component (C) can be dis-solved are ethylene glycol and butyl acetate. If an organic solvent is used for the preparation of the aqueous dispersions of (C), it is preferably one in which component (C) dissolves.
The dispersions and solutions of component (C) which are employed according to the invention can comprise other substances such as preservatives and dispersing agents, in addition to the fluorine-containing organic or organosilicon compound, water and organic solvent.
Fluorine-containing organic compounds and dispersions and solutions thereof are already known. Reference may be made in this context to, for example, the DE 25 26 287 C cited above.
Fluorine-containing o:rganosilicon compounds and dispersions and solutions thereof are already known.
The composition:a according to the invention can comprise addi-tives (D), for example, preservatives and dispersing agents.
If additives (D;I are used for the preparation of the composi-tion according to i~he invention, these are employed in amounts of from 0.1 to 1.0 part by weight, and more preferably from 0.1 to 0.5 part by weight, per part by weight of component (A).
The composition according to the invention has a pH of prefera-bly 4 to 7, and more preferably 5.
The composition according to the invention comprises water in amounts of 5 to 50 parts by weight, and more preferably 20 to 40 parts by weight, per part by weight of component (A).
The composition according to the invention can be prepared by any desired mixing of the components employed according to the invention. This is preferably effected by mixing the organopoly-siloxane comprising units of formula (I) with the organic or inorganic acid to l:orm constituent (A) and with the other constit-uents. This mixing is preferably carried out at a temperature of 20 to 120°C under a pressure of 900 to 1100 hPa.
The composition: according to the invention have the advantage of having a water-repellent and oil-repellent and also efflores-cence-preventing acaion, in particular on moist substrates, into which solvent-containing compositions do not penetrate and usually form glossy coatings.
The mineral bui:Lding materials which can be impregnated with the compositions according to the invention are preferably alka-line mineral build:Lng materials, in particular those which com-prise a hydraulic binder which has not yet reacted, such as free lime. This is in general the case for building materials which have not yet aged <~nd in which the free lime is not completely carbonized.
Examples of alkaline mineral building materials are freshly de-shuttered concreate, masonry, compositions prepared from Port-land cement and fiber cement slabs, preferably fresh concrete.
Furthermore, the present invention relates to a process for the impregnation of mineral building materials, in particular alkaline mineral building materials, which comprises applying the composi-tion according to ithe invention onto the surface to be impreg-nated.
The composition: according to the invention can be applied in any desired manner, for example, by spraying, pouring, brushing, rolling or dipping.
Examples of organopolysiloxanes comprising units of formula (III) are methylethoxypo:Lysiloxanes, dimethylpolysiloxanes and i-octylmethoxypolysiloxanes.
The organopolysiloxanes comprising units of formula (III) preferably have a ~riscosity of 5 to 2000 mm2/s, and more prefera-bly 10 to 500 mm2/rn, in each case at 25°C.
The organosilicon compounds (B) employed are preferably silanes and low molecular weight siloxanes, in particular silanes.
If an organosilLcon compound (B) is used for the preparation of the composition according to the invention, this is employed in amounts of 0.1 to __°i parts by weight, and more preferably 1.5 to 3 parts by weight, pear part by weight of component (A).
The compositions according to the invention preferably com-prise component (B).
The organosilicon compound (B) employed can be one type or a mixture of at least: two types of such an organosilicon compound.
Compounds which can be employed as component (A) in the compo-sition according to the :invention and compounds which can be employed as componE:nt (B) in the composition according to the invention as well as mixtures of components (A) and (B) are already know. Refs:rence may be made in this context to, for example, US 4,661,__°i51, issued April 28, 1987 (blacker-Chemie GmbH:
published April 28,. 1984;1 and corresponding DE 34 47 636 A1 (pub-lished on July 3, ~~~986) .
The fluorine-containing organic compounds (C) are preferably polymeric compound:a which consist of fluorine and carbon atoms and, if appropriate:, chlorine, hydrogen, oxygen, sulfur, phospho-rus and/or nitrogen atoms.
Examples of such fluorine compounds are polytetrafluoroethy-lene, copolymers oi= tetrafluoroethylene and hexafluoropropylene, polytrifluorochloroethylene, fluorourethane, copolymers of trifluorochloroethylene and other monomers, such as vinylidene fluoride, vinyl ch:Loride, vinyl acetate or styrene; fluorinated acrylic resins, such as polymers of 1,1-dihydroperfluorobutyl acrylate and copolymers of n-butyl acrylate, N-methylolacrylamide and at least 35% by weight of a methacrylic acid ester of the formula H;; C O
CH2==C-C-O-CH2CH2(CF2)mCF3, in which m is an integer having a value of from 1 to 13.
The fluorine-containing organic compounds are preferably fluo-rinated polyacrylaites and polyurethanes.
The fluorine-containing organosilicon compounds (C) are prefer-ably 3,3,3-trifluo:ro-n-propylmethylpolysiloxanes terminated with trimethylsilyl groups.
The fluorine-containing organic or organosilicon compound (C) employed according to the invention can be one type or a mixture of at least two types of such a compound.
The compositions according to the invention comprise constitu-ent (C) in amounts of 0.1 to 50 parts by weight, preferably 1 to 5 parts by weight, per part by weight of constituent (A).
The fluorine-containing organic or organosilicon compound (C) is preferably employed as an aqueous dispersion, containing an organic solvent, or as a solution in an organic solvent.
The concentration of the fluorine-containing organic or organo-silicon compounds in their dispersions or solutions is preferably in each case not more than 20% by weight, based on the total weight of the dispersion or solution.
Examples of the organic solvent which the aqueous dispersion of component (C) can contain or in which component (C) can be dis-solved are ethylene glycol and butyl acetate. If an organic solvent is used for the preparation of the aqueous dispersions of (C), it is preferably one in which component (C) dissolves.
The dispersions and solutions of component (C) which are employed according to the invention can comprise other substances such as preservatives and dispersing agents, in addition to the fluorine-containing organic or organosilicon compound, water and organic solvent.
Fluorine-containing organic compounds and dispersions and solutions thereof are already known. Reference may be made in this context to, for example, the DE 25 26 287 C cited above.
Fluorine-containing o:rganosilicon compounds and dispersions and solutions thereof are already known.
The composition:a according to the invention can comprise addi-tives (D), for example, preservatives and dispersing agents.
If additives (D;I are used for the preparation of the composi-tion according to i~he invention, these are employed in amounts of from 0.1 to 1.0 part by weight, and more preferably from 0.1 to 0.5 part by weight, per part by weight of component (A).
The composition according to the invention has a pH of prefera-bly 4 to 7, and more preferably 5.
The composition according to the invention comprises water in amounts of 5 to 50 parts by weight, and more preferably 20 to 40 parts by weight, per part by weight of component (A).
The composition according to the invention can be prepared by any desired mixing of the components employed according to the invention. This is preferably effected by mixing the organopoly-siloxane comprising units of formula (I) with the organic or inorganic acid to l:orm constituent (A) and with the other constit-uents. This mixing is preferably carried out at a temperature of 20 to 120°C under a pressure of 900 to 1100 hPa.
The composition: according to the invention have the advantage of having a water-repellent and oil-repellent and also efflores-cence-preventing acaion, in particular on moist substrates, into which solvent-containing compositions do not penetrate and usually form glossy coatings.
The mineral bui:Lding materials which can be impregnated with the compositions according to the invention are preferably alka-line mineral build:Lng materials, in particular those which com-prise a hydraulic binder which has not yet reacted, such as free lime. This is in general the case for building materials which have not yet aged <~nd in which the free lime is not completely carbonized.
Examples of alkaline mineral building materials are freshly de-shuttered concreate, masonry, compositions prepared from Port-land cement and fiber cement slabs, preferably fresh concrete.
Furthermore, the present invention relates to a process for the impregnation of mineral building materials, in particular alkaline mineral building materials, which comprises applying the composi-tion according to ithe invention onto the surface to be impreg-nated.
The composition: according to the invention can be applied in any desired manner, for example, by spraying, pouring, brushing, rolling or dipping.
~. 21 02638 In the process <~ccording to the invention, 100 to 500 g, and preferably 300 to !500 g, of the composition are applied per m2 of surface to be impregnated.
The process has the advantage that water repellency, oil repellency and eff:Lorescence prevention are achieved in a very simple and effective manner.
The building mai~erials impregnated according to the invention have the advantage that they have water-repellent and oil-repel-lent properties and at the same time show no formation of white stains (efflorescence).
In the examples which follow, all the parts and percentage data relate to the weight, unless stated otherwise. Unless stated otherwise, the examples are carried out under ambient pressure about 1000 hPa, and at room temperature of about 20°C, or at a temperature which :is established when the reactants are brought together at room temperature without additional heating or cooling. All the viscosity data given in the examples are intended to relate to a temperature of 25°C.
Example 1 (a) Preparation o:E a mixture of a salt of an organic or inorganic acid and an organopolysiloxane containing basic nitrogen (component A) and an organosilicon compound (component B).
27 parts o:E an a,w-dihydroxy[dimethyl/methyl-N-(2-amino ethyl)-3-aminopropyl]polysiloxane having an average molecular weight of about 4000 g/mol and a basic nitrogen content of 2.0%, based on the r~aeight of the siloxane, 7 parts of glacial acetic acid, !50 parts of isooctyltrimethoxysilane, 15 parts of tetraethyl orthosilicate and 12 parts of an oligomeric mixture of monomethylsiloxane containing methoxy groups and monoisooctylsiloxane having an average molecular weight of about 400 g/mol are mixed with one another.
To prepare the impregnating agent, 10 parts of the mixture described above are mixed with 15 parts of a fluorine polymer dispersion comprising 30% of fluorourethane, 10% of ethylene glycol, 60% of water and <1% of ethyl acetate (commercially .
obtainable under the name 5cotchgard FX-3567 from 3M Deutsch-land GmbH, D-4040 Neuss) and 75 parts of water. A stable, milky dispersion which shows no phase separation even after storage for 24 hours results.
A mixture of 1350 g of standard sand, 200 g of cement and 140 g of water is tamped into circular shuttering molds and left to stand for 6 hours and the shuttering is then removed.
400 g/m2 of impregnating agent are then applied to the resulting amber-brown circular concrete specimens 2.0 cm thick and 8.5 cm in diameter by brushing and the specimens are left to stand for 24 hours. In each case 3 ml of dis-tilled water are then applied to a circular concrete specimen at intervals. of 24 hours. The water remains on the concrete surface and evaporates off in the air, no formation of white stains (effl.orescence) being observed.
Example 2 To prepare the impregnating agent, 10 parts of the mixture described in Example 1(a) are mixed with 15 parts of a 30%
strength fluoroacrylate dispersion (commercially obtainable under the name Scotchgard FC-393 from 3M Deutschland GmbH, D-4040 Neuss) and 75 parts of water. A milky, stable disper-sion which chows no phase separation even after storage for 24 hours re:aults.
* denotes tradE~ mark 400 g/m2 of impregnating agent as described in Example l, are then applied to the amber-brown circular concrete specimens, b;y brushing and the specimens are left to stand for 24 hours. In each case 3 ml of distilled water are then applied to a circular concrete specimen at intervals of 24 hours. The water remains on the concrete surface and evaporates off in the air, no formation of white stains (efflorescence) being observed.
Example 3 (b) Preparation of a mixture of a salt of an organic or inor-ganic acid a.nd an organopolysiloxane containing basic nitro-gen (compone:nt A) and an organosilicon compound (component B) .
31 parts of an a,w-dihydroxy[dimethyl/methyl-N-(2-amino-ethyl)-3-aminopropyl]polysiloxane having an average molecular weight of about 4000 g/mol and a content of basic nitrogen of 2.6%, based on the weight of the siloxane, 8 parts of glacial acetic acid, 27 parts of isooctyltrimethoxysilane, 12 parts of polyethy:l silicate having an average molecular weight of 450 g/mol and a viscosity of 4 mm2/s and 23 parts of an oligomeric ;mixture of monomethylsiloxane containing methoxy groups and monoisooctylsiloxane having an average molecular weight of about 400 g/mol are mixed with one another.
To prepare the impregnating agent, 15 parts of a fluorine polymer dispersion comprising 30% of fluorourethane, 10% of ethylene glycol, 60% of water and <1% of ethyl acetate (com-mercially obtainable under the name Scotchgard FX-3567 from 3M Deutschl.and GmbH, D-4040 Neuss) are mixed with 75 parts of water, and 10 parts of the mixture described in (b) above, are added to this emulsion. A milky, stable dispersion which shows no phasE: separation even after storage for 24 hours results.
400 g/m2 0l: impregnating agent as described in Example 1, are applied to the amber-brown circular concrete specimens by brushing and t:he specimens are left to stand for 24 hours.
In each case ~~ ml of distilled water are then applied to a circular concrete specimen at intervals of 24 hours. The water remains on the surface of the concrete and evaporates off, no formation of white stains (efflorescence) being observed.
Example 4 To prepare the impregnating agent, 10 parts of the mixture described in Example 3(b) are mixed with 15 parts of a 30%
strength fluoroacrylate dispersion (commercially obtainable under the name: Scotchgard FC-393 from 3M Deutschland GmbH, D-4040 Neuss) and 75 parts of water. A milky, stable disper-sion which shows no phase separation even after storage for 24 hours.
400 g/m2 of: impregnating agent as described in Example 1, are then applied to the amber-brown circular concrete speci-mens, by brushing and leaving the specimens standing for 24 hours. In each case 3 ml of distilled water are then applied to a circular concrete specimen at intervals of 24 hours.
The water remains on the surface of the concrete and evap-orates off, no formation of white stains (efflorescence) being observed.
Comparison Example 1 A mixture of: 1350 g of standard sand, 200 g of cement and 140 g of water is tamped into circular shuttering molds and left to stand for 6 hours, after which the shuttering is then removed. The amber-brown circular concrete specimens 2.0 cm thick and 8.5 cm in diameter are left to stand for 24 hours.
3 ml of disti:Lled water are then applied to a circular con-s Crete specimen. The water penetrates immediately. After 24 hours, severe formation of white stains (efflorescence) is observed.
Comparison Example 2 parts o:E the mixture prepared in Example 3(b) above are 10 poured into 90 parts of water. After stirring, a transparent mixture with a particle size of 30 nm results.
400 g/m2 o:E this impregnating agent prepared in Example 1, is then applied to the amber-brown circular concrete speci-mens, by brushing and the specimens are left to stand for 24 hours. 3 ml of distilled water are then applied to a circu-lar concrete :specimen. The water remains on the surface of the concrete. After the water has evaporated off, severe formation of white stains (efflorescence) is found.
Comparison Example 3 17 parts o:E the fluorine polymer dispersion described in Example 1 are mixed with 83 parts of water.
400 g/m2 o:f this impregnating agent, described in Example 1, are then applied to the amber-brown circular concrete specimens by J~rushing and the specimens are left to stand for 24 hours. 3 ml of distilled water are then applied to a circular concrete specimen. The water remains on the surface of the concrete for one hour, penetrating completely. After 24 hours, severe formation of white stains (efflorescence) is found.
The process has the advantage that water repellency, oil repellency and eff:Lorescence prevention are achieved in a very simple and effective manner.
The building mai~erials impregnated according to the invention have the advantage that they have water-repellent and oil-repel-lent properties and at the same time show no formation of white stains (efflorescence).
In the examples which follow, all the parts and percentage data relate to the weight, unless stated otherwise. Unless stated otherwise, the examples are carried out under ambient pressure about 1000 hPa, and at room temperature of about 20°C, or at a temperature which :is established when the reactants are brought together at room temperature without additional heating or cooling. All the viscosity data given in the examples are intended to relate to a temperature of 25°C.
Example 1 (a) Preparation o:E a mixture of a salt of an organic or inorganic acid and an organopolysiloxane containing basic nitrogen (component A) and an organosilicon compound (component B).
27 parts o:E an a,w-dihydroxy[dimethyl/methyl-N-(2-amino ethyl)-3-aminopropyl]polysiloxane having an average molecular weight of about 4000 g/mol and a basic nitrogen content of 2.0%, based on the r~aeight of the siloxane, 7 parts of glacial acetic acid, !50 parts of isooctyltrimethoxysilane, 15 parts of tetraethyl orthosilicate and 12 parts of an oligomeric mixture of monomethylsiloxane containing methoxy groups and monoisooctylsiloxane having an average molecular weight of about 400 g/mol are mixed with one another.
To prepare the impregnating agent, 10 parts of the mixture described above are mixed with 15 parts of a fluorine polymer dispersion comprising 30% of fluorourethane, 10% of ethylene glycol, 60% of water and <1% of ethyl acetate (commercially .
obtainable under the name 5cotchgard FX-3567 from 3M Deutsch-land GmbH, D-4040 Neuss) and 75 parts of water. A stable, milky dispersion which shows no phase separation even after storage for 24 hours results.
A mixture of 1350 g of standard sand, 200 g of cement and 140 g of water is tamped into circular shuttering molds and left to stand for 6 hours and the shuttering is then removed.
400 g/m2 of impregnating agent are then applied to the resulting amber-brown circular concrete specimens 2.0 cm thick and 8.5 cm in diameter by brushing and the specimens are left to stand for 24 hours. In each case 3 ml of dis-tilled water are then applied to a circular concrete specimen at intervals. of 24 hours. The water remains on the concrete surface and evaporates off in the air, no formation of white stains (effl.orescence) being observed.
Example 2 To prepare the impregnating agent, 10 parts of the mixture described in Example 1(a) are mixed with 15 parts of a 30%
strength fluoroacrylate dispersion (commercially obtainable under the name Scotchgard FC-393 from 3M Deutschland GmbH, D-4040 Neuss) and 75 parts of water. A milky, stable disper-sion which chows no phase separation even after storage for 24 hours re:aults.
* denotes tradE~ mark 400 g/m2 of impregnating agent as described in Example l, are then applied to the amber-brown circular concrete specimens, b;y brushing and the specimens are left to stand for 24 hours. In each case 3 ml of distilled water are then applied to a circular concrete specimen at intervals of 24 hours. The water remains on the concrete surface and evaporates off in the air, no formation of white stains (efflorescence) being observed.
Example 3 (b) Preparation of a mixture of a salt of an organic or inor-ganic acid a.nd an organopolysiloxane containing basic nitro-gen (compone:nt A) and an organosilicon compound (component B) .
31 parts of an a,w-dihydroxy[dimethyl/methyl-N-(2-amino-ethyl)-3-aminopropyl]polysiloxane having an average molecular weight of about 4000 g/mol and a content of basic nitrogen of 2.6%, based on the weight of the siloxane, 8 parts of glacial acetic acid, 27 parts of isooctyltrimethoxysilane, 12 parts of polyethy:l silicate having an average molecular weight of 450 g/mol and a viscosity of 4 mm2/s and 23 parts of an oligomeric ;mixture of monomethylsiloxane containing methoxy groups and monoisooctylsiloxane having an average molecular weight of about 400 g/mol are mixed with one another.
To prepare the impregnating agent, 15 parts of a fluorine polymer dispersion comprising 30% of fluorourethane, 10% of ethylene glycol, 60% of water and <1% of ethyl acetate (com-mercially obtainable under the name Scotchgard FX-3567 from 3M Deutschl.and GmbH, D-4040 Neuss) are mixed with 75 parts of water, and 10 parts of the mixture described in (b) above, are added to this emulsion. A milky, stable dispersion which shows no phasE: separation even after storage for 24 hours results.
400 g/m2 0l: impregnating agent as described in Example 1, are applied to the amber-brown circular concrete specimens by brushing and t:he specimens are left to stand for 24 hours.
In each case ~~ ml of distilled water are then applied to a circular concrete specimen at intervals of 24 hours. The water remains on the surface of the concrete and evaporates off, no formation of white stains (efflorescence) being observed.
Example 4 To prepare the impregnating agent, 10 parts of the mixture described in Example 3(b) are mixed with 15 parts of a 30%
strength fluoroacrylate dispersion (commercially obtainable under the name: Scotchgard FC-393 from 3M Deutschland GmbH, D-4040 Neuss) and 75 parts of water. A milky, stable disper-sion which shows no phase separation even after storage for 24 hours.
400 g/m2 of: impregnating agent as described in Example 1, are then applied to the amber-brown circular concrete speci-mens, by brushing and leaving the specimens standing for 24 hours. In each case 3 ml of distilled water are then applied to a circular concrete specimen at intervals of 24 hours.
The water remains on the surface of the concrete and evap-orates off, no formation of white stains (efflorescence) being observed.
Comparison Example 1 A mixture of: 1350 g of standard sand, 200 g of cement and 140 g of water is tamped into circular shuttering molds and left to stand for 6 hours, after which the shuttering is then removed. The amber-brown circular concrete specimens 2.0 cm thick and 8.5 cm in diameter are left to stand for 24 hours.
3 ml of disti:Lled water are then applied to a circular con-s Crete specimen. The water penetrates immediately. After 24 hours, severe formation of white stains (efflorescence) is observed.
Comparison Example 2 parts o:E the mixture prepared in Example 3(b) above are 10 poured into 90 parts of water. After stirring, a transparent mixture with a particle size of 30 nm results.
400 g/m2 o:E this impregnating agent prepared in Example 1, is then applied to the amber-brown circular concrete speci-mens, by brushing and the specimens are left to stand for 24 hours. 3 ml of distilled water are then applied to a circu-lar concrete :specimen. The water remains on the surface of the concrete. After the water has evaporated off, severe formation of white stains (efflorescence) is found.
Comparison Example 3 17 parts o:E the fluorine polymer dispersion described in Example 1 are mixed with 83 parts of water.
400 g/m2 o:f this impregnating agent, described in Example 1, are then applied to the amber-brown circular concrete specimens by J~rushing and the specimens are left to stand for 24 hours. 3 ml of distilled water are then applied to a circular concrete specimen. The water remains on the surface of the concrete for one hour, penetrating completely. After 24 hours, severe formation of white stains (efflorescence) is found.
Claims (9)
1. A composition for the impregnation of mineral building materials, which comprises (A) salts of organic or inorganic acids and an organopoly-siloxane or mixture of organopolysiloxanes containing SiC-bonded radicals containing basic nitrogen, in amounts of at least 0.5% by weight, based on the weight of the organopolysiloxane, (B) optionally, an organosilicon compound containing basic nitrogen, in amounts of 0 to 0.5% by weight, based on the weight of the organosilicon compound, and (C) a fluorine-containing organic or organosilicon compound.
2. A composition as claimed in claim 1, wherein the organopoly-siloxane from which constituent (A) is obtainable by reaction with an organic or inorganic acid is one of formula in which R can be identical or different and denotes hydrogen or monovalent, SiC-bonded organic radicals which are free from basic nitrogen, R1 can be identical or different and denotes monovalent, SiC-bonded radicals containing basic nitrogen, R2 can be identical or different and denotes hydrogen atoms or monovalent organic radicals, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3 and c is 0, 1, 2 or 3, with the proviso that the sum of a, b and c is less than or equal to 3 and the radical R1 is present in an amount of more than 0.5% by weight of basic nitrogen per organopolysiloxane molecule.
3. A composition as claimed in claim 1, wherein the organosilicon compound (B) is one comprising units of formula in which R5 can be identical or different and denotes hydrogen or monovalent, SiC-bonded organic radicals, R6 can be identical or different and denotes hydrogen atoms or monovalent organic radicals, d is 0, 1, 2, 3 or 4 and a is 0, 1, 2, 3 or 4, with the proviso that the sum of d+e is less than or equal to 4 and the content of basic nitrogen is 0 to 0.5% by weight, based on the weight of the particular organosilicon compound.
4. A composition as claimed in claim 1, wherein the organosilicon compound (B) is employed in amounts of 0.1 to 5 parts by weight per part by weight of component (A).
5. A composition as claimed in claim 1, wherein the fluorine-containing organic or organosilicon compound (C) is employed in amounts of 0.1 to 50 parts by weight per part by weight of constituent (A).
6. A composition as claimed in claim 5, wherein the fluorine-containing organic or organosilicon compound (C) is employed as an aqueous dispersion which optionally contains an organic solvent.
7. A composition as claimed in claim 5, wherein the fluorine-containing organic or organosilicon compound (C) is employed as a solution in an organic solvent.
8. A process for the impregnation of mineral building materials, which comprises applying a composition as claimed in claim 1 to the surface to be impregnated.
9. The process as claimed in claim 8, wherein the mineral building materials are alkaline mineral building materials.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4242445A DE4242445A1 (en) | 1992-12-16 | 1992-12-16 | Compositions for impregnating mineral building materials |
| DEP4242445.3 | 1992-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2102638A1 CA2102638A1 (en) | 1994-06-17 |
| CA2102638C true CA2102638C (en) | 2000-04-11 |
Family
ID=6475416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002102638A Expired - Fee Related CA2102638C (en) | 1992-12-16 | 1993-11-08 | Compositions for the impregnation of mineral building materials |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US5399191A (en) |
| EP (1) | EP0603747B1 (en) |
| JP (1) | JP2553313B2 (en) |
| KR (1) | KR970005892B1 (en) |
| CN (1) | CN1088561A (en) |
| AT (1) | ATE127770T1 (en) |
| BR (1) | BR9304990A (en) |
| CA (1) | CA2102638C (en) |
| DE (2) | DE4242445A1 (en) |
| ES (1) | ES2077464T3 (en) |
| FI (1) | FI935573A (en) |
| HU (1) | HUT69751A (en) |
| MX (1) | MX9308045A (en) |
| NO (1) | NO934621L (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4431489A1 (en) * | 1994-09-03 | 1996-03-07 | Heidelberger Baustofftech Gmbh | Fast curing aminosilane cross-linking silicone masses |
| DE19517346A1 (en) * | 1995-05-11 | 1996-11-14 | Wacker Chemie Gmbh | Emulsions of organosilicon compounds for the hydrophobization of building materials |
| US5702509A (en) * | 1995-12-22 | 1997-12-30 | Minnesota Mining And Manufacturing Company | Masonry treatment composition |
| DE19605674A1 (en) * | 1996-02-15 | 1997-08-21 | Wacker Chemie Gmbh | Self-priming building material coatings |
| DE19628035A1 (en) * | 1996-07-11 | 1998-01-15 | Wacker Chemie Gmbh | Aqueous creams of organosilicon compounds for waterproofing building materials |
| DE19634500A1 (en) * | 1996-08-26 | 1998-03-05 | Wacker Chemie Gmbh | Compositions for the water and oil repellent treatment of absorbent materials |
| US5965664A (en) * | 1997-08-27 | 1999-10-12 | Lindley Laboratories, Inc. | High concentration silane emulsions for rendering absorbent substrates water repellent |
| DE19904496A1 (en) * | 1999-02-04 | 2000-08-10 | Wacker Chemie Gmbh | Aqueous creams of organosilicon compounds |
| DE10044641B4 (en) * | 2000-09-08 | 2012-10-04 | Hermann Schmitt | Liquid impregnating agent and use of this agent |
| US6610782B1 (en) | 2001-11-20 | 2003-08-26 | Lindley Laboratories, Inc. | Binary silane emulsions for rendering absorbent substrates water repellant |
| EP1526400A4 (en) | 2003-06-10 | 2006-07-05 | Nippon Telegraph & Telephone | Electrooptic modulation element |
| CN101062500A (en) * | 2006-03-20 | 2007-10-31 | 王晗 | Method for using coating material |
| DE102008033315A1 (en) | 2008-07-16 | 2010-01-21 | Alpin-Chemie Gmbh | Composition and its use |
| US9809497B2 (en) * | 2015-12-01 | 2017-11-07 | Wacker Chemical Corporation | Omniphobic grout additive |
| US10829505B2 (en) | 2016-04-20 | 2020-11-10 | Dow Silicones Corporation | Lithium alkylsiliconate composition, coating, and method of making same |
| GB201703823D0 (en) * | 2017-03-09 | 2017-04-26 | Safeguard Europe Ltd | Water-in-oil emulsion compositions |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH513779A (en) * | 1970-06-18 | 1971-10-15 | Michoud Roger | Process for waterproofing a building material, in particular concrete |
| DE2526287C2 (en) * | 1975-06-12 | 1982-09-30 | Wacker-Chemie GmbH, 8000 München | Process for making open porosity surfaces of normally solid inorganic materials repellant to oil and water |
| DE3228660C2 (en) * | 1982-07-31 | 1985-11-14 | Dynamit Nobel Ag, 5210 Troisdorf | Deep impregnation of heavy concrete |
| DE3447636A1 (en) * | 1984-12-28 | 1986-07-03 | Wacker-Chemie GmbH, 8000 München | WHEN DILUTED WITH WATER, TRANSPARENT MIXTURE COMPOSITIONS CONTAINING POLYSILOXANE |
| US4810748A (en) * | 1988-04-15 | 1989-03-07 | Dow Corning Corporation | Concrete joint sealant having improved adhesion |
| JPH07119398B2 (en) * | 1989-01-09 | 1995-12-20 | 東芝シリコーン株式会社 | Primer composition |
| DE3911479A1 (en) * | 1989-04-08 | 1990-10-11 | Goldschmidt Ag Th | PREPARATION FOR WATER REPELLENT IMPREGNATION OF POROESER MINERAL BUILDING MATERIALS |
| JP2628371B2 (en) * | 1989-04-28 | 1997-07-09 | 大日精化工業株式会社 | Paint composition |
| DE4029640A1 (en) * | 1990-09-19 | 1992-03-26 | Goldschmidt Ag Th | PREPARATION FOR WATER REPELLENT IMPREGNATION OF POROESER MINERAL BUILDING MATERIALS |
| DE4122263C1 (en) * | 1991-07-05 | 1993-02-25 | Degussa Ag, 6000 Frankfurt, De |
-
1992
- 1992-12-16 DE DE4242445A patent/DE4242445A1/en not_active Withdrawn
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1993
- 1993-10-22 CN CN93118737A patent/CN1088561A/en active Pending
- 1993-11-01 US US08/143,592 patent/US5399191A/en not_active Expired - Fee Related
- 1993-11-08 CA CA002102638A patent/CA2102638C/en not_active Expired - Fee Related
- 1993-12-09 BR BR9304990A patent/BR9304990A/en not_active Application Discontinuation
- 1993-12-09 KR KR1019930027111A patent/KR970005892B1/en not_active IP Right Cessation
- 1993-12-13 FI FI935573A patent/FI935573A/en not_active Application Discontinuation
- 1993-12-14 JP JP5313186A patent/JP2553313B2/en not_active Expired - Lifetime
- 1993-12-15 HU HU9303597A patent/HUT69751A/en unknown
- 1993-12-15 MX MX9308045A patent/MX9308045A/en unknown
- 1993-12-15 NO NO934621A patent/NO934621L/en unknown
- 1993-12-16 ES ES93120312T patent/ES2077464T3/en not_active Expired - Lifetime
- 1993-12-16 AT AT93120312T patent/ATE127770T1/en not_active IP Right Cessation
- 1993-12-16 EP EP93120312A patent/EP0603747B1/en not_active Expired - Lifetime
- 1993-12-16 DE DE59300596T patent/DE59300596D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06206783A (en) | 1994-07-26 |
| HUT69751A (en) | 1995-09-28 |
| DE59300596D1 (en) | 1995-10-19 |
| CA2102638A1 (en) | 1994-06-17 |
| FI935573A0 (en) | 1993-12-13 |
| NO934621L (en) | 1994-06-17 |
| EP0603747B1 (en) | 1995-09-13 |
| EP0603747A1 (en) | 1994-06-29 |
| ES2077464T3 (en) | 1995-11-16 |
| JP2553313B2 (en) | 1996-11-13 |
| HU9303597D0 (en) | 1994-04-28 |
| MX9308045A (en) | 1994-06-30 |
| US5399191A (en) | 1995-03-21 |
| NO934621D0 (en) | 1993-12-15 |
| DE4242445A1 (en) | 1994-06-23 |
| KR970005892B1 (en) | 1997-04-21 |
| CN1088561A (en) | 1994-06-29 |
| KR940014262A (en) | 1994-07-18 |
| ATE127770T1 (en) | 1995-09-15 |
| BR9304990A (en) | 1994-07-05 |
| FI935573A (en) | 1994-06-17 |
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