CA2195918C - Self-priming architectural coatings - Google Patents
Self-priming architectural coatings Download PDFInfo
- Publication number
- CA2195918C CA2195918C CA002195918A CA2195918A CA2195918C CA 2195918 C CA2195918 C CA 2195918C CA 002195918 A CA002195918 A CA 002195918A CA 2195918 A CA2195918 A CA 2195918A CA 2195918 C CA2195918 C CA 2195918C
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- CA
- Canada
- Prior art keywords
- weight
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- alkyl
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- water
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 239000003973 paint Substances 0.000 claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 239000004566 building material Substances 0.000 claims abstract description 18
- 239000008199 coating composition Substances 0.000 claims abstract description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
- 239000011707 mineral Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005470 impregnation Methods 0.000 claims abstract description 7
- -1 C1-C20-alkyl radicals Chemical class 0.000 claims description 80
- 229920001296 polysiloxane Polymers 0.000 claims description 26
- 150000003254 radicals Chemical class 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 125000003545 alkoxy group Chemical group 0.000 claims description 8
- 150000001412 amines Chemical class 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000005871 repellent Substances 0.000 abstract description 14
- 239000000839 emulsion Substances 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 125000004432 carbon atom Chemical group C* 0.000 description 20
- 229920002050 silicone resin Polymers 0.000 description 19
- 239000000758 substrate Substances 0.000 description 16
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 13
- 239000004215 Carbon black (E152) Substances 0.000 description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 11
- 235000011941 Tilia x europaea Nutrition 0.000 description 11
- 229930195733 hydrocarbon Natural products 0.000 description 11
- 239000004571 lime Substances 0.000 description 11
- 229910000077 silane Inorganic materials 0.000 description 11
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 10
- 230000035515 penetration Effects 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 239000003995 emulsifying agent Substances 0.000 description 9
- 235000010755 mineral Nutrition 0.000 description 8
- 239000000460 chlorine Substances 0.000 description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 238000007792 addition Methods 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 4
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- HXOGQBSDPSMHJK-UHFFFAOYSA-N triethoxy(6-methylheptyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCCCC(C)C HXOGQBSDPSMHJK-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 150000002191 fatty alcohols Chemical class 0.000 description 3
- 239000000417 fungicide Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 229960005419 nitrogen Drugs 0.000 description 3
- 150000001282 organosilanes Chemical class 0.000 description 3
- 125000005375 organosiloxane group Chemical group 0.000 description 3
- 235000011007 phosphoric acid Nutrition 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 3
- JWZZKOKVBUJMES-UHFFFAOYSA-N (+-)-Isoprenaline Chemical compound CC(C)NCC(O)C1=CC=C(O)C(O)=C1 JWZZKOKVBUJMES-UHFFFAOYSA-N 0.000 description 2
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 description 2
- MAUMSNABMVEOGP-UHFFFAOYSA-N (methyl-$l^{2}-azanyl)methane Chemical compound C[N]C MAUMSNABMVEOGP-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- 229920005789 ACRONAL® acrylic binder Polymers 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000003973 alkyl amines Chemical class 0.000 description 2
- 125000002877 alkyl aryl group Chemical group 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 150000005840 aryl radicals Chemical class 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 235000010980 cellulose Nutrition 0.000 description 2
- 229920003086 cellulose ether Polymers 0.000 description 2
- 239000004815 dispersion polymer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000000855 fungicidal effect Effects 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 239000004530 micro-emulsion Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 2
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 235000019248 orcein Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 239000010695 polyglycol Substances 0.000 description 2
- 229920000151 polyglycol Polymers 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- FKTXDTWDCPTPHK-UHFFFAOYSA-N 1,1,1,2,3,3,3-heptafluoropropane Chemical compound FC(F)(F)[C](F)C(F)(F)F FKTXDTWDCPTPHK-UHFFFAOYSA-N 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- CGERYHYIVJQVLJ-UHFFFAOYSA-N 2-methylbutane Chemical compound CC[C](C)C CGERYHYIVJQVLJ-UHFFFAOYSA-N 0.000 description 1
- IIVWHGMLFGNMOW-UHFFFAOYSA-N 2-methylpropane Chemical compound C[C](C)C IIVWHGMLFGNMOW-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- SLRMQYXOBQWXCR-UHFFFAOYSA-N 2154-56-5 Chemical compound [CH2]C1=CC=CC=C1 SLRMQYXOBQWXCR-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 101100456896 Drosophila melanogaster metl gene Proteins 0.000 description 1
- 229920005682 EO-PO block copolymer Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004166 Lanolin Substances 0.000 description 1
- 101100219101 Mus musculus Btbd1 gene Proteins 0.000 description 1
- 229910003849 O-Si Inorganic materials 0.000 description 1
- 241000625836 Ochrolechia Species 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- 229910003872 O—Si Inorganic materials 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241001249250 Roccella canariensis Species 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- LWZFANDGMFTDAV-BURFUSLBSA-N [(2r)-2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O LWZFANDGMFTDAV-BURFUSLBSA-N 0.000 description 1
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003619 algicide Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- 229920013820 alkyl cellulose Polymers 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229920013822 aminosilicone Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 125000004181 carboxyalkyl group Chemical group 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000004956 cyclohexylene group Chemical group 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 150000002338 glycosides Chemical class 0.000 description 1
- 150000002402 hexoses Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 235000019388 lanolin Nutrition 0.000 description 1
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- 235000010445 lecithin Nutrition 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical class CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 1
- 239000005055 methyl trichlorosilane Substances 0.000 description 1
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 1
- 230000003641 microbiacidal effect Effects 0.000 description 1
- 229940124561 microbicide Drugs 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229960003493 octyltriethoxysilane Drugs 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- 125000000962 organic group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002972 pentoses Chemical group 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000005054 phenyltrichlorosilane Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229940095050 propylene Drugs 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229930182490 saponin Natural products 0.000 description 1
- 235000017709 saponins Nutrition 0.000 description 1
- 150000007949 saponins Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- HRQDCDQDOPSGBR-UHFFFAOYSA-M sodium;octane-1-sulfonate Chemical compound [Na+].CCCCCCCCS([O-])(=O)=O HRQDCDQDOPSGBR-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229950006451 sorbitan laurate Drugs 0.000 description 1
- 235000011067 sorbitan monolaureate Nutrition 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229940044603 styrene Drugs 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- ORVMIVQULIKXCP-UHFFFAOYSA-N trichloro(phenyl)silane Chemical compound Cl[Si](Cl)(Cl)C1=CC=CC=C1 ORVMIVQULIKXCP-UHFFFAOYSA-N 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
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- 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
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- 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
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- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
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- 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
- C04B41/4922—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 monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
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- 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
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- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
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- 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
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Abstract
The present invention relates to a process for the coating and water-repellent impregnation of mineral building materials, in which an architectural coating composition containing from 1 to 30 % by weight of C1-C20 alkyl-C1-C6-alkoxysilane as impregnating agent is applied to the building material. The principal architectural coating compositions are paints and plasters.
Description
21 qsq 1 8 Docket WA9603-S
Paper No. 1 SELF-PRIMING ARCHmCTURAL COATINGS
BACKGROUND OF THE INVENTION
Mineral building materials are best protected against the effects of weathering by a water-repellent impregnation and a coating applied over the latter. As soon as it is coated, a water-repellent impregnation becomes a water-repellentprimer.
The primer is applied directly to the mineral substrate. By forming a hydrophobic zone, it renders the substrate water-repellent down to a certain depth and provides permanently improved union between the uniformly hydrophobicized substrate and the architectural coating. Organosilanes, oli-gomeric organosiloxanes or silicone resins are the best active substances for water-repellent primers.
Solvent-conhining and aqueous primer compositions are used. In addition to organosilanes, oligomeric organosiloxanes or silicone resins, sol-vent-containing primer compositions include synthetic resins, such as styrene 2 o acrylates and pure acrylates, which serve to reinforce the substrate.
The advantage of the aqueous primer compositions is that they contain lit1de or no organic solvent fractions. They can be used wherever the sub-strate is somewhat intact. The highly alkaline aqueous potassium siliconate solutions, microemulsions or emulsions of organosilanes, oligomeric organo-2 5 siloxanes or silicone resins are used. The hydrophobicizing primer "levelsout" the abso. l~n.y of the substrate and leads to improved adhesion of the arcl~ lurdl coating and to a water-repellent effect which extends into the depth of the substrate. EP-A-234 024, for example, describes the water-repellent impregnation of building materials with an emulsion of alkyl-3 o alkoxysilanes. US 4,757,106 describes the hydrophobicization of building materials using microemulsions of alkoxy-containing organopolysiloxanes and salts of aminosilicone oils.
- 2~ ~591 8 The covering archilecl.lral coatings are applied in one or more coats over the water-repellent primer. Examples of such architectural coatings are paints and plasters. Pretreating the substrate with a water-repellent primer is important when the architectural coating includes emulsifieM or other wet-ting agents.
BRIEF SUMMARY OF THE INVENTION
The present invention relates to a process for the coating and water-repellent impregnaffon of mineral building material, in which a building-material coating composition (architectural coating composition) cont~ining 0 aL~cylalkoxysilane as impregnating agent is applied to the building material, and also relates to an architectural coating composition containing alkyl-aL~co%ysilane and optionally alkoxy-containing organopolysiloxane as impregnating agents.
DETAILED DESCRIPTION OF THE INVENTION
The object of the present invention is to provide architectural coating compositions which provide the mineral building material with water-repellent impregnation, so that prior application of a primer is unnecessary.
The invention relates to a process for the coating and water-repellent impregnation of mineral building material, in which an architectural coating 2 o composition containing from 1% to 30 % by weight of Cl~2~alkyl-Cl C6-aL~coxysilane as impregnating agent is applied to the building material.
When the water-containing impregnaffng architectural coaffng com-posiffon is applied, the prior priming operaffon can be omitted insofar as the intenffon of priming was to bring about water repellency down to a certain substrate depth. When the water-contAining impregnaffng archiL~ al coaffng composition is applied, the impregnating agent penetrates well into both dense and porous building materials, and gives the building material ~ro~l Lies of water repellency down to a certain depth.
Normally, a coating system consisting of water-repellent primer and 3 o topcoat is applied in two or three operations; first, applying the water-repellent primer or optionally, applying the topcoat diluted slightly with water (precoating) and finally applying the undiluted topcoat .
- 21't5~18 In the present invention, if a precoating is used, the impregnating agent is added to the al.llilecl~al coaffng composiffon which is used for pre-coaffng. The precoaffng to which impregnaffng agent has been added can also be used as the final coaffng.
The principal arclul~l-llal coaffngs are paints and plasters. The archi-tectural coaffng composiffons suitable for use in the invenffon are supplied either in dry form, applied in the form of a water-con~ining formulaffon, such as powder paints and pulverulent dry plasters, or wet form, such as paste-like water-con~ining paints, for example silicone resin paints, silicate paints and emulsion paints, or pastelike, water-containing plasters, for example syntheffc-resin plasters and silicone resin plasters.
The impregnaffng architectural coaffng composiffons suitable for the pul~oses of the present invenffon can be subdivided according to the thick-ness in which they are applied; thickly, such as plasters in the millimeter to cenffmeter range, or thinly, such as covering paints, in the 100 11 to 1 millime-ter range.
The impregnaffng architectural coaffng composiffons suitable for the purposes of the invenffon can be used both in the interior of buildings and on the exterior, ~fe,ably exterior. Pl~relled examples are emulsion paints, 2 o silicone resin paints, silicone masonry paints, silicate emulsion paints, silicate paints, lime paints, lime emulsion paints, silicate plasters, dry plasters, inte-rior paints, fillers, reinforcing composiffons, filling composiffons, masonry paints, syntheffc-resin plasters, mineral paints, mineral plasters, silicone resin plasters and syntheffc-resin-bound coaffngs.
2 5 Preferably, the Cl-C2~alkyl-Cl C6-alkoxysilanes possess 1 or 2 idenffcal or dirrer~l.t, opffonally halogen-sul~lil~ d, SiC-bonded, monovalent Cl-C
alkyl radicals, and the other radicals are idenffcal or dirrerent Cl C6-alkoxy radicals, especially Cz- or C3-alkoxy radicals. The alkyltrialkoxysilanes are pl~r~lled, such as octyltriethoxysilane and l)lllylll;ethoxysilane.
3 o Examples of Cl C6-alkoxy radicals are the methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxv, isobutoxy, sec-butoxy, tert-butoxy radicals; pentyloxy 21q5ql8 radicals, such as the n-pentyloxy radical, and hexyloxy radicals, such as the n-hexyloxy radical. The ethoxy radicals are ~l~fel . ed.
Methoxysilanes hydrolyze too quickly for many applicaffons and have a poorer stability on storage than longer alkoxy radicals. C4 C6-aL~oxy radi-cals are too slow to react for many applicaffons.
Examples of the Cl-C2~alkyl radicals are the methyl, ethyl, n-propyl, iso~rol,~l, n-butyL isobutyl, tert-butyl, n-pentyl, isopentyl, neo~lllyl, tert-pentyl radical; hexyl radicals, such as the n-hexyl radical; heptyl radicals, such as the n-heptyl radical; octyl radicals, such as the n-octyl radical and lo isooctyl radicals, such as the 2,2,4-trimethylpentyl radical; nonyl radicals, such as the n-nonyl radical; decyl radicals, such as the n-decyl radical, and dodecyl radials, such as ~e n-dodecyl radical; cycloalkyl radicals, such as cyclo~lllyl, cyclohexyl, 4-ethylcyclohexyl, cycloheptyl radicals, norbornyl radicals and methylcyclohexyl radicals.
Examples of halogen-sul,~ led Cl-C2~alkyl radicals are alkyl radi-cals sul~lilul~d by fluorine, chlorine, bro~ le and iodine atoms, such as the 3,3,3-trifluoro-n-propyl radical, the 2,2,2,2',2',2'-hexafluoroisopropyl radicaland the heptafluoroisopropyl radical.
PIefe.el ce is given to the unsul>slil~lted C4-Cl2-aL~cyl radicals.
2 o The impregnaffng agent added to the arch~ al coaffng composi-tion may in addiffon to aL~cylalkoxysilanes comprise alkoxy-containing organopolysiloxane (A). The organopolysiloxane (A) may addiffonally con-tain hydroxyl groups, which facilitate bonding to the building materials.
The alkoxy-cor hinin~ organopolysiloxane (A) ~refeiably has a vis-2 5 cosity of not more than 2000 mm2/s, in order to achieve good distlibuffon on the pore surfaces in ~e masonry.
Of parffcular suitability are the alkoxy-containing organopolysiloxanes (A) comprising units of the formula RxSi(ORl)y(OH)zO x v z (I), in which 2 1 '~5~ 1 8 R re~ se~ an identical or different, monovalent, optionally halogen-sul~Lilul~d, SiC-bonded C1-C20 hydrocarbon radical, Rl represents an identical or different monovalent C~ alkyl radical, x is 0,1, 2 or 3, on average from 0.8 to 1.8, y is 0,1, 2 or 3, on average from 0.01 to 2.0 and z is 0,1, 2 or 3, on average from 0.0 to 0.5, with the proviso that the sum of x, y and z is not more than 3.5.
The organopolysiloxane (A) has a viscosity of from 10 mm2/s to 50,000 mm2/s, ~ferably from 50 mm2/s to 5000 mm2/s, at 25~C.
o Examples of the Cl-C20 hydrocarbon radicals are the C1-C20 alkyl radi-cals and halogen-substituted C1-C20-alkyl radicals listed above in connection with the alkylalkoxysilanes, and the alkenyl radicals, such as the vinyl, allyl,n-5-hexe.,yl, 4-vinylcyclohexyl and 3-norbornenyl radical; aryl radicals, such as the phenyl, biphenylyl, naphthyl and anthryl and phenanthryl radicals;
15 alkaryl radicals, such as o-, m-, p-tolyl radicals, xylyl radicals and ethlphenyl radicals; aralkyl radicals, such as the benzyl radical, the a- and ~phenylethyl radical. The unsubslil~lled Cl~l~alkyl radicals and the phenyl radical are pierel~d.
Although not indicated in the formula given above, some of the radi-2 o cals R can be replaced by hydrogen atoms a*~h~l directly to silicon atomshowever, this is not ~refe..ed.
Examples of the radicals R1 are the methyl, ethyl, n-propyl, iso~;opyl, n-butyl, sec-butyl and tert-butyl radical; pentyl radicals, such as the n-pentylradical and hexyl radicals, such as the n-hexyl radical, the ethyl radicals 25 being ~refelled.
Preferably x has an average value of from 0.9 to 1.1 y has an average value of from 0.4 to 1.2. and z has an average value of from 0.0 to 0.2.
Examples of the aLkoxy-containing organopolysiloxane (A) are those obtainable by reacting methyltrichlorosilane and, optionally, a C1 Cs-3 o alkyltrichlorosilane, or phenyltrichlorosilane, with ethanol in water, such as 2195ql8 the organopolysiloxanes of the empirical formulaCH3Si(OC2H5)0.801.1 or C6HsSi(OC2Hs)0.7201.14.
The impregnating agent added to the architectural coating com-5 position may, in addition to alkylaLtcoxysilanes, include organopolysiloxane (B) as well, which in addition to other organosiloxane units includes those siloxane units having SiC-bonded radicals conhinin~ basic luLIogel4 with the proviso that the amine number of the organopolysiloxane is at least 0.01.
The organopolysiloxanes (B) are yi~fe~ably those comprising units of o the formula R2aR3b(0R4)cSiO4a b c (II), in which R2 le~ieselll~ an identical or different, monovalent, optionally halogen-substituted, SiC-bonded C1-C20 hydrocarbon radical devoid of basic nitrogen4 R3 represents an identical or di~ent, monovalent, opffonally halogen-subsliluled, SiC-bonded Cl~30 hydrocarbon radical containing basic nitrogen, 2 o R4 is idenffcal or different at each occull~l.ce and represents a hydrogen atom or Cl C6 alkyl radical, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3, on average at least 0.05, and c is 0, 1, 2 or 3, 2 5 with the proviso that the sum of a, b and c is less than or equal to 3 and that the amine number of the organopolysiloxane (B) is at least 0.01.
The amine number designates the number of ml of 1 N HCl required to neutralize 1 g of organopolysiloxane (B). The amine number of the organopolysiloxane (B) is at least 0.1, pre~e,ably at least 0.2, and more pref-3 o erably not more than 8, in particular not more than 4.
Examples and ~re~lled examples of the radical R2 are listed above forradical R. The methyl and the isooctyl radical are ~rerel~ed.
2 ! 95q 18 Each silicon atom to which a hydrogen atom is attached also carries a hydrocarbon radical, especially a methyl radical.
Radical R3 is ~r~felably a radical of the formula R52NR6- (m), in which R5 is identical or different and repr~senl~ hydrogen or monovalent, optionally sul~liluled Cl-C10 hydrocarbon radical or Cl-C10 amino hydrocarbon radical, and R6 repl esents a divalent Cl-Cls hydrocarbon radical.
lo Examples of radical R5 are hydrocarbon radicals given for radical R, and amino-sul~lil.lled hydrocarbon radicals, such as aminoalkyl radicals, in which conlexl the aminoethyl radical is pref~..ed.
Each nitrogen atom in the radicals of formula (III) ~refelably carries at least one hydrogen atom.
Radical R6 comprises divalent hydrocarbon radicals having 1 to 10 carbon atoms, plefelably 1 to 4 carbon atoms, and more prefelably the n-propylene radical.
Examples of radical R6 are the methylene, ethylene, propylene, buty-lene, cyclohexylene, octadecylene, phenylene and butenylene radical.
P~efelled examples of radicals R3 are H2N(CH2)3-, H2N(CH2)2NH(CH2)2-, H2N(CH2)2NH(CH2)3-, H2N(CH2)2-, 2 5 H3CNH(CH2)3-, C2H5NH(CH2)3-, H3CNH(CH2)2-, C2H5NH(CH2)2-, H2N(CH2)4-, H2N(CH2)5-, H(NHCH2CH2)3-, C4H9NH(CH2)2NH(CH2)2-, 2195qi8 cyclo C6HllNH(CH2)3-, cyclo C6HllNH(CH2)2-, (CH3)2N(CH2)3-, (CH3)2N(cH2)2-, 5 (C2Hs)2N(CH2)3- and (C2Hs)2N(CH2)2 .
The examples of aL~yl ra~ lc Rl also apply to radical R6.
Examples and plefe~led examples of the radical R~ are listed above for radical Rl. The methyl and the ethyl radical are ~le~led.
The average value for a is from 0 to 2, ~refel ably from 0 to 1.8.
The average value for b is from 0.1 to 0.6, plefe~ably from 0.15 to 0.30.
The average value for c is from 0 to 0.8, prerelably from 0.01 to 0.6.
The organopolysiloxanes (B) have a viscosity of from 5 to 5000, pref-erably from 100 to 3000 mm2/s at 25~C.
Organopolysiloxanes (B) can be prepared, for example by equilibrat-ing or condensing amino-functional silanes with organopolysiloxanes which contain aL~coxy groups and/or hydroxyl grou~s and are free from basic nitro-gen.
The water-containing impregnaffng architectural coating composition 2 o contains from 3% to 25 % by weight, ~rerel ably from 8% to 20 % by weight, of the impregnating agent.
The proportion of optionally used organopolysiloxane (A) and or-ganopolysiloxane (~) together is prere~ably not more than 60% by weight of the impregnating agent.
2 5 The addition of impregnating agent can be carried out directly beforeapplication of the coating, or in-plant while still at the premises of the coat-ing-composition manufacturer.
The impregnating agent is added either as an aqueous emulsion or in pure form to the alclul~l~lral coating composition. For example, the impreg-3 o nating agent is incorporated during the preparation of the architectural coat-ing position, in order to obtain the water-containing impregnating architec-tural coating composition.
If the impregnaffng agent is added as an aqueous emulsion or in pure form to the archile~ ral coaffng composiffon, parffcularly suitable anionic emulsifiers are:
1. Alkyl sulfates, especially those having a chain length of 8 to 18 carbon atoms, alkyl and alkaryl ether sulfates having 8 to 18 carbon atoms in the hydrophobic radical and 1 to 40 ethylene oxide (EO) andlor pro-pylene oxide (PO) units.
2. Sulfonates, especially alkylsulfonates having 8 to 18 carbon atoms, alkylarylsulfonates having 8 to 18 carbon atoms, taurides, esters and monoesters of sulfosuccinic acid with monohydric alcohols or alkyl-phenols having 4 to 15 carbon atoms; opffonally, these alcohols or aLtcylphenols may also be ethoxylated with 1 to 40 EO units.
3. Alkali metal and ammonium salts of carboxylic acids having 8 to 20 carbon atoms in the aL~yl, aryl, alkaryl or aralkyl radical.
5 4. Phosphoric acid parffal esters and their alkali metal and ammonium salts, especially alkyl and alkaryl phosphates having 8 to 20 carbon atoms in the organic radical, alkyl ether phosphates and alkaryl ether phosphates having 8 to 20 carbon atoms in the alkyl or aLkaryl radical and 1 to 40 EO units.
2 0 Parffcularly suitable nonionic emulsifiers are:
5. Polyvinyl alcohol still con~ining from 5% to 50 %, ~referably from 8 to 20 % of vinyl acetate units, and having a degree of polymerizaffon of from 500 to 3000.
6. Alkyl polyglycol ethers, pre~eldbly those having 8 to 40 EO units and2 5 alkyl radicals of 8 to 20 carbon atoms.
7. Alkylaryl polyglycol ethers, ~refelably those having 8 to 40 EO units and 8 to 20 carbon atoms in the alkyl and aryl radicals.
8. Ethylene oxide/propylene oxide (EO/PO) block copolymers, prefer-ably those having 8 to 40 EO and PO units.
3 o 9. Addiffon products of alkylamine having alkyl radicals of 8 to 22 car-bon atoms with ethylene oxide or propylene oxide.
21 95ql 8 10. Fatty acids having 6 to 24 carbon atoms.
11. Alkyl polyglycosides of the formula R-~Zo~ in which R- is a linear or br~n~h~, saturated or unsaturated alkyl radical having on average 8 -24 carbon atoms and ZO is an oligoglycoside radical having on average o = 1 -10 hexose or pentose units, or mixtures thereof.
12. Natural substances and derivatives ll,ereof, such as lecithin, lanolin, saponins, cellulose, cellulose alkyl ethers and carboxy alkyl celluloses, whose alkyl groups each have up to 4 carbon atoms.
13. Linear organo(poly)siloxanes containing polar grou~s, especially those lo cont~ining alkoxy groups of up to 24 carbon atoms and/or up to 40 EO
and/or PO groups.
Particularly suitable cationic emulsifiers are:
14. Salts of prirnary, secondary and tertiary fatty amines having 8 to 24 carbon atoms with acetic acid, sulfuric acid, hydrochloric acid and phosphoric acids.
15. Quarternary alkyl- and alkylbenzeneammonium salts, especially those whose alkyl groups have 6 to 24 carbon atoms, in parffcular the hal-ides, sulfates, phosphates and acetates.
16. Alkylpyridinium, alkylimidazolinium and alkyloxazolinium salts, 2 o especially those whose alkyl chain has up to 18 carbon atoms, espe-cially the halides, sulfates, phosphates and acetates.
Particularly suitable ampholyffc emulsifiers are:
17. Amino acids with long-chain consfftuents, such as N-alkyl~i-(amino-ethyl)glycine or N-alkyl-2-aminopropionic acid salts.
25 18. Betaines, such as N-(3-acylamido~.o~l)-N,N-dimethylammonium salts having a Cs~ls-acyl radical, and aL~yl-imidazolium betaines.
Pl~.2fel.ed emulsifiers are nonionic emulsifiers, especially the addition products of alkylamines with ethylene oxide or propylene oxide as listed above under 9, the alkyl polyglycosides listed above under 11., and the 3 o polyvinyl alcohol listed above under 5. Polyvinyl alcohols still contain from 5% to 20 %, ~refe.dbly from 10% to 15 %, of vinyl acetate units and have a degree of polymerization of from 500 to 3000, ~fe'ably from 1200 to 2000.
~ 2!q5ql8 The plOpO. Lion of emulsifier is from 1% to 30 % by weight, ~refel ably from 2% to 10 % by weight, based on the overall quanffty of the impregnaffng agent.
The water-contPining impregnaffng archileclural coaffng composition 5 may also comprise buffer substances which stabilize the pH in the range from 5 to 8, in which the impregnaffng agent is very stable to hydrolysis. Suitable substances are all organic and inorganic acids and bases which are chemically inert to the other consfftuents of the arcllile-lulal coaffng composiffon, and are in pafficular the aL1cali metal, alkaline earth metal and ammonium salts of 10 carboxylic acids, phosphoric acid, carbonic acid and sulfuric acid. Pfeferel~ce is given to sodium carbonate, sodium bicarbonate, sodium hydrogen phos-phate, and a mixture of aceffc acid and aqueous ammonia soluffon. The quanffty of buffer substances is preferably not more than 3% by weight, pref-erably 1% by weightt of the overall quanffty of the water-containing impreg-15 nating arcl~ lu~ll coating compositions.
In addiffon to the above-described constituents, the water~ontaining impregnating archil~:L~al coating compositions may addiffonally comprise addiffves, such as fungicides, bactericides, algicides, microbicides, odor sub-stances, corrosion inhibitors and anfffoams. The quanffty of addiffves is not 2 o more than 2% by weight, prefrably 0.5% by weight, of the overall quanffty of the water-cont~ining impregnaffng archit~ulal coaffng composiffons.
The i~ llion also relates to an arcl~ al coating composiffon for mineral building materials, which contains from 1% to 30 ~O by weight of Cl-C2~alkyl-C~ C6-alkoxysilane and opffonally alkoxy-containing organo-2 5 polysiloxane (A) as impregnating agents.
In the examples which follow all parts and perce~ ges, unless statedotherwise, are by weight. Unless indicated otherwise, the following exam-ples are carried out at the l~ressure of the surrounding atmosphere, at about 0.10 MPa, and at room temperature, at about 20~C, or at the temperature 3 o which is established when the reactants are combined at room temperature without addiffonal heaffng or cooling. All viscosiffes indicated in the exam-- - 2! ~591 8 ples relate to a tempelal~e of 25~C. The solids content of the emulsions sig-nifies the sum of all components with the exception of water.
Example 1 Silicone resin paint (Comparison Example) To prepare aqueous archiLe~LIl.al coatings, the following components are mixed in the sequence given in a commercial high~speed stirrer apparatus:
336 parts by weight of water 1 part by weight of pigment-dispeising agent 2 parts by weight of fungicide 5 parts by weight of thickener based on cellulose ether 120 parts by weight of titanium dioxide 275 parts by weight of chalk 60 parts by weight of talc 95 parts by weight of an about 54% strength by weight aque-ous silicone resin emulsion consi~Ling of 90 mole% CH3SiO3/2 units, 20 mole%
(CH3)2SiO2/2 units and 10 mole%
C2HsOSiO3/2 units.
2 0 10 parts by weight of a 55% strength by weight aqueous emulsion of a condensation product of an a, ~-dihydroxymethylpolysiloxane having an Si-bonded hydroxyl group in each of the terminal units and N-(2-aminoethyl)-3-aminopro~yltrimethoxysilane in the pres-ence of KOH, having an amine number of about 0.3, a viscosity of about 1500 mm2/s at 25~C and a residual methoxy conk~llt of less than 5 mole%, based on the methoxy 3 o groups initially present in the N-(2-amino-ethyl)-3-amino~ro~ltrimethoxysilane 1 part by weight of ammonia solution - 2 ! 9 59 1 8 95 parts by weight of an approximately 50% strength by weight polymer dispersion based on sty-rene acrylate (Acronal~ 290 D from BASF
AG, Germany) to give: 1000 parts by weightof silicone resin paint Lime sandstone is coated with 200 g/m2 of this silicone resin paint using a brush. After storage of the coated substrate for 14 days at room temperature under standard condiffons, the adhesive strength according to DIN ISO 4624 and the thickness of the hydrophobic zone (depth of penetraffon) underneath the coaffng are determine-l. The latter is determined by breaking the substrate and wetffng the fracture site with water.
The following values are obtained:
Depth of ~l~ellaffon: O mm Adhesive strength: 1.50 N/mm2 Example 2 Silane emulsion EM 8, in the quanffffes indicated in Table 1, is added to the silicone resin paint (SRP) prepared according to Example 1, by slir~ , it in.
2 o Preparaffon of the silane emulsion EM 8: 54 parts by weight of iso-octyltriethoxysilane are emulsified with 6 parts by weight of the con-densaffon product of an a, a)-dihydroxymell-yll,olysiloxane having one Si-bonded hydroxyl group in each of the terminal units and N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in the presence of KOH, having an amine number of about 0.3, a viscosity of about 1500 mm2/s at 25~C and a residual methoxy content of less than 5 mole%, based on the methoxy groups initially present in the N-(2-aminoethyl)-3-amino-propyltrimethoxysilane, 0.5 part by weight of a reaction product of stearylamine and ethylene oxide (Genamin~ 200 from Hoechst AG, 3 o Frankfurt), 2.7 parts by weight of a fatty alcohol C8~10-glycoside inaqueous soluffon (Glukopon~ 225 from Henkel KGaA, Dusseldorf), - 2! 95918 and 36.8 parts by weight of water. The aqueous emulsions are pre-pared by first of all mixing some of the water with emulsifier and emulsif~i,.g amino-functional polysiloxane followed by silane. Both the initially mentioned mixing and the emulsification are carried out in a high-speed stator-rotor stirrer device according to Prof. P. Willems.
The self-priming silicone resin paint obtained is applied to lime sandstone, the substrate is stored and the penetration depth and adhesive strength are determined in accordance with Example 1, giving the values listed in Table 1 below:
Table 1 ExampleAddition ofQuantity of Depth of pene- Adhesive EM 8 to 100 gSRP applied tration sL~ g of SRP
a) 2 g 204 g/m2 0.1 mm 1.90 N/mm2 b) 10g 220g/m2 0.5mm ~2.86N/mm2 c) 20 g 240 g/m2 1.5 mm ~ 2.94 N/mm2 d) 30 g 260 g/m2 2.0 mm ~ 2.90 N/mm2 e) 50 g 300 g/m2 2.5 rnm ~ 2.82 N/rnm2 f) ~ 20 g 240 g/m2 1.5 mm ~ 2.90 N/mm2 Stone removal cracks are found; adhesive strength is greater than the intrinsic strength of the lime sandstone.
~ Addition of 20 g of EM 8 to 100 g of silicone resin paint followed by storage of the mixture at room temperature for 4 months before application to lime sandstone Example 3 (Comparison Example) The silane emulsion EM 8 is used alone as primer composition. For 2 o this purpose it is diluted 1:9 with water. Lime sandstone substrates are treated with this EM 8 dilution in accordance with Example 1, they are stored, and the depth of penetration is determined.
The values obtained are indicated in Table 2 below:
- 2 1 q 59 1 8 Table 2 Example Quantity applied Dep~ of penetration a) 40 g/m2 0.2 mm b) 200 g/m2 1.0 mm c) 400 g/m2 2.0 mm d) 600 g/m2 2.5 mm e) 1000 g/m2 3.0 mm Example 4 Isooctyltriethoxysilane is added during the preparaffon of the sili-cone resin paint in order to obtain a self-priming silicone resin paint.
To prepare aqueous architectural coaffngs, the following components are mixed in the sequence given in a commercial high-speed stirrer apparatus:
53 parts by weight of an a~l)roxill~ately 55% Sllellglll by weight aqueous emulsion of the condensa-ffon product described in Example 2 in connection with the preparaffon of silane emulsion EM 8 8 parts by weight of a fatty alcohol C8~l0 glycoside in aque-ous soluffon (Glukopon~ 225 from Henkel KGaA, Dusseldorf) 106 parts by weight of isooctyltriethoxysilane 379 parts by weight of water 1 part by weight of pigment-dis~elsing agent 2 parts by weight of fungicide 2 o 5 parts by weight of thickener based on cellulose ether 120 parts by weight of fftanium dioxide 275 parts by weight of chalk 60 parts by weight of talc 95 parts by weight of an about 54% strength by weight aque-2 5 ous silicone resin emulsion consisffng of - 21 ~5ql 8 CH3SiO3/2 units, with about 20 mole%
(CH3)*iO2/2 units and about 10 mole%
C2HsOSiO3/2 units.
1 part by weight of ammonia solution 95 parts by weight of an approximately 50% strength by weight polymer dispersion based on sty-rene acrylate (Acronal~ 290 D from BASF
AG, Germany) to give: 1200 parts by weightof silicone resin paint Lime sandstone is coated with 240 g/m2 of this self-priming silicone resin paint using a brush, and, as described in Example 1, the coated substrate is stored and the penetration depth and adhesive strength are determined.
The following values were obtained:
Depth of penetration: 1.5 mm Adhesive strength: 2.75 N/mm2 Example 5 (Comparison Example) 20 g of isooctyltriethoxysilane are mixed with 180 g of aliphatic sol-vent (white spirit). Lime sandstone is treated with this mixture in 2 o accordance with Example 1 by brush application (200 g/m2), the sub-strate is stored and the depth of peneLdtion is determined.
The following value is obtained: Depth of penetration: 1.5 mm Example 6 The silicone resin paint prepared in accordance with Example 1 and 2 5 a commercial masonry emulsion paint based on acrylate polymer (Maxiayl~ from Sto AG, Shihlingen, Germany) are each mixed with 20% by weight of the following silane emulsions Nos. 1 to 4, or water.
The resulting self-priming architectural coatings are applied to lime sandstone, stored and then evaluated in respect of determining the 3 o depth of penetration.
Silane emulsions Nos. 1 to 4:
No. 1: A mixture of 100 g of polysiloxanediol with a molecular weight of 6803 g/mol and 32.5 g of y-amino~rol,yll~ell,oxysilane is heated to 180~C, during which it is stirred and nitrogen is passed through, and is held at this temperature for about 4 hours until 8.8 g of ethanol have been expelled. The resulting product is then cooled. 125 g of this product are mixed with 125 g of isoblllyll.illlethoxysilane. To this formulation there are added 20 g of an emulsifier mixture consisting of a metl yl~olyoxyethylene (15)cocoammonium chloride in a weight ratio of 1:1 and, following the addition of 335 g of water, the formula-tion is processed to form an emulsion using an apparatus which oper-ates in accordance with the rotor/stator principle. The isob.llylLI;-methoxysilane conlent of the emulsion is 40% by weight No. 2: 10 g of n octyltriethoxysilane and 1.5 g of sorbitol monooctade-canoate are stirred vigorously with a magnetic sffrrer, and 38.5 g of water are added over the course of 5 minutes. The n-octyltriethoxy-silane COll~ t of the emulsion is 20% by weight No. 3: 58.4 g of water, 1.25 g of surfactant of the formula H3C-(CH2)u~H=CH-(CH2)u-(OCH2-CH2)s-O-Si(OC2Hs)2-(CH2)u-CH3 2 o where u = ~10 and 0.35 g of sodium octylsulfonate are combined with S~ illg. 40 g of n-octyltriethoxysilane are stirred into this mixture, which is then adjusted to a pH of 7.5 with sodium bicarbonate. The n{~.lyll,iethoxy-silane content of the emulsion is 40% by weight.
No. 4: 61.81 g of a mixture of 0.97 part by weight of n-octyltriethoxy-2 5 silane and 1 part by weight of a resin of average formula (CH3)0.s(Cl2H2s)0.2Si(O)l(OCH3)l are dispersed twice with 1 g of a mix-ture of an ethylene oxide adduct of a fatty alcohol and of a polyethyl-ene oxide sorbitan laurate, having an HLB value of 15, in ~e presence of 0.1 g of ethanolamine and 37.1 g of water in a jet dis~l~l with 2 3 o serial nozzles at 200 bar. The mean particle si~ is 0.834 ~m. Theamount of impregnating agent in the emulsion is 60% by weight ~ 2195918 The results are listed in Table 3 below:
Table 3 Example Added silane Depth of ~n~lralion 6* emulsion F.mul~ n paint SRP Example 1 a) No. 1 - ** 1 mm b) No. 2 -~ 0.5rnm c) No. 3 0.5mm 0.5mm d) No.4 0.5mm 0.5 e) Water 0 mm 0 mm Co~ ~ol~
* Quantity of the self-pr~ning coating applied to lirne sandstone: 240 g/m2.
Addiffon of the silane emulsions Nos. 1 to 4 or addiffon of water to 100 g of architectural coating: 20 g *~ not determined.
Example 7 30 g of EM 8 from Example 2 are stirred into 100 g of the acrylate-0 based masonry emulsion paint of Example 6. The resulting self-priming emulsion paint is applied to lime sandstone and following storage of the substrate shows the following values in accordance with Example 1:
Depth of ~ne11ation: 0.5 mm Adhesive strength: 2.60 N/mm2 Without the addiffon of EM 8, the coating has the following values:
Depth of penetration: 0 mm Adhesive sllenglll; 2.15 N/mm2 le 8 2 o The procedure of Example 7 is repeated. However, 30 g of EM 8 are stirred into 100 g of a silicate emulsion paint (ISPO~-Silikatfarbe from Ispo GmbH, Kriftel). The following depth of penetration of the self-priming silicate emulsion paint is found: 1.5 mm. Without the addi-tion of EM8 the depth of penetration is 0 mm.
Paper No. 1 SELF-PRIMING ARCHmCTURAL COATINGS
BACKGROUND OF THE INVENTION
Mineral building materials are best protected against the effects of weathering by a water-repellent impregnation and a coating applied over the latter. As soon as it is coated, a water-repellent impregnation becomes a water-repellentprimer.
The primer is applied directly to the mineral substrate. By forming a hydrophobic zone, it renders the substrate water-repellent down to a certain depth and provides permanently improved union between the uniformly hydrophobicized substrate and the architectural coating. Organosilanes, oli-gomeric organosiloxanes or silicone resins are the best active substances for water-repellent primers.
Solvent-conhining and aqueous primer compositions are used. In addition to organosilanes, oligomeric organosiloxanes or silicone resins, sol-vent-containing primer compositions include synthetic resins, such as styrene 2 o acrylates and pure acrylates, which serve to reinforce the substrate.
The advantage of the aqueous primer compositions is that they contain lit1de or no organic solvent fractions. They can be used wherever the sub-strate is somewhat intact. The highly alkaline aqueous potassium siliconate solutions, microemulsions or emulsions of organosilanes, oligomeric organo-2 5 siloxanes or silicone resins are used. The hydrophobicizing primer "levelsout" the abso. l~n.y of the substrate and leads to improved adhesion of the arcl~ lurdl coating and to a water-repellent effect which extends into the depth of the substrate. EP-A-234 024, for example, describes the water-repellent impregnation of building materials with an emulsion of alkyl-3 o alkoxysilanes. US 4,757,106 describes the hydrophobicization of building materials using microemulsions of alkoxy-containing organopolysiloxanes and salts of aminosilicone oils.
- 2~ ~591 8 The covering archilecl.lral coatings are applied in one or more coats over the water-repellent primer. Examples of such architectural coatings are paints and plasters. Pretreating the substrate with a water-repellent primer is important when the architectural coating includes emulsifieM or other wet-ting agents.
BRIEF SUMMARY OF THE INVENTION
The present invention relates to a process for the coating and water-repellent impregnaffon of mineral building material, in which a building-material coating composition (architectural coating composition) cont~ining 0 aL~cylalkoxysilane as impregnating agent is applied to the building material, and also relates to an architectural coating composition containing alkyl-aL~co%ysilane and optionally alkoxy-containing organopolysiloxane as impregnating agents.
DETAILED DESCRIPTION OF THE INVENTION
The object of the present invention is to provide architectural coating compositions which provide the mineral building material with water-repellent impregnation, so that prior application of a primer is unnecessary.
The invention relates to a process for the coating and water-repellent impregnation of mineral building material, in which an architectural coating 2 o composition containing from 1% to 30 % by weight of Cl~2~alkyl-Cl C6-aL~coxysilane as impregnating agent is applied to the building material.
When the water-containing impregnaffng architectural coaffng com-posiffon is applied, the prior priming operaffon can be omitted insofar as the intenffon of priming was to bring about water repellency down to a certain substrate depth. When the water-contAining impregnaffng archiL~ al coaffng composition is applied, the impregnating agent penetrates well into both dense and porous building materials, and gives the building material ~ro~l Lies of water repellency down to a certain depth.
Normally, a coating system consisting of water-repellent primer and 3 o topcoat is applied in two or three operations; first, applying the water-repellent primer or optionally, applying the topcoat diluted slightly with water (precoating) and finally applying the undiluted topcoat .
- 21't5~18 In the present invention, if a precoating is used, the impregnating agent is added to the al.llilecl~al coaffng composiffon which is used for pre-coaffng. The precoaffng to which impregnaffng agent has been added can also be used as the final coaffng.
The principal arclul~l-llal coaffngs are paints and plasters. The archi-tectural coaffng composiffons suitable for use in the invenffon are supplied either in dry form, applied in the form of a water-con~ining formulaffon, such as powder paints and pulverulent dry plasters, or wet form, such as paste-like water-con~ining paints, for example silicone resin paints, silicate paints and emulsion paints, or pastelike, water-containing plasters, for example syntheffc-resin plasters and silicone resin plasters.
The impregnaffng architectural coaffng composiffons suitable for the pul~oses of the present invenffon can be subdivided according to the thick-ness in which they are applied; thickly, such as plasters in the millimeter to cenffmeter range, or thinly, such as covering paints, in the 100 11 to 1 millime-ter range.
The impregnaffng architectural coaffng composiffons suitable for the purposes of the invenffon can be used both in the interior of buildings and on the exterior, ~fe,ably exterior. Pl~relled examples are emulsion paints, 2 o silicone resin paints, silicone masonry paints, silicate emulsion paints, silicate paints, lime paints, lime emulsion paints, silicate plasters, dry plasters, inte-rior paints, fillers, reinforcing composiffons, filling composiffons, masonry paints, syntheffc-resin plasters, mineral paints, mineral plasters, silicone resin plasters and syntheffc-resin-bound coaffngs.
2 5 Preferably, the Cl-C2~alkyl-Cl C6-alkoxysilanes possess 1 or 2 idenffcal or dirrer~l.t, opffonally halogen-sul~lil~ d, SiC-bonded, monovalent Cl-C
alkyl radicals, and the other radicals are idenffcal or dirrerent Cl C6-alkoxy radicals, especially Cz- or C3-alkoxy radicals. The alkyltrialkoxysilanes are pl~r~lled, such as octyltriethoxysilane and l)lllylll;ethoxysilane.
3 o Examples of Cl C6-alkoxy radicals are the methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxv, isobutoxy, sec-butoxy, tert-butoxy radicals; pentyloxy 21q5ql8 radicals, such as the n-pentyloxy radical, and hexyloxy radicals, such as the n-hexyloxy radical. The ethoxy radicals are ~l~fel . ed.
Methoxysilanes hydrolyze too quickly for many applicaffons and have a poorer stability on storage than longer alkoxy radicals. C4 C6-aL~oxy radi-cals are too slow to react for many applicaffons.
Examples of the Cl-C2~alkyl radicals are the methyl, ethyl, n-propyl, iso~rol,~l, n-butyL isobutyl, tert-butyl, n-pentyl, isopentyl, neo~lllyl, tert-pentyl radical; hexyl radicals, such as the n-hexyl radical; heptyl radicals, such as the n-heptyl radical; octyl radicals, such as the n-octyl radical and lo isooctyl radicals, such as the 2,2,4-trimethylpentyl radical; nonyl radicals, such as the n-nonyl radical; decyl radicals, such as the n-decyl radical, and dodecyl radials, such as ~e n-dodecyl radical; cycloalkyl radicals, such as cyclo~lllyl, cyclohexyl, 4-ethylcyclohexyl, cycloheptyl radicals, norbornyl radicals and methylcyclohexyl radicals.
Examples of halogen-sul,~ led Cl-C2~alkyl radicals are alkyl radi-cals sul~lilul~d by fluorine, chlorine, bro~ le and iodine atoms, such as the 3,3,3-trifluoro-n-propyl radical, the 2,2,2,2',2',2'-hexafluoroisopropyl radicaland the heptafluoroisopropyl radical.
PIefe.el ce is given to the unsul>slil~lted C4-Cl2-aL~cyl radicals.
2 o The impregnaffng agent added to the arch~ al coaffng composi-tion may in addiffon to aL~cylalkoxysilanes comprise alkoxy-containing organopolysiloxane (A). The organopolysiloxane (A) may addiffonally con-tain hydroxyl groups, which facilitate bonding to the building materials.
The alkoxy-cor hinin~ organopolysiloxane (A) ~refeiably has a vis-2 5 cosity of not more than 2000 mm2/s, in order to achieve good distlibuffon on the pore surfaces in ~e masonry.
Of parffcular suitability are the alkoxy-containing organopolysiloxanes (A) comprising units of the formula RxSi(ORl)y(OH)zO x v z (I), in which 2 1 '~5~ 1 8 R re~ se~ an identical or different, monovalent, optionally halogen-sul~Lilul~d, SiC-bonded C1-C20 hydrocarbon radical, Rl represents an identical or different monovalent C~ alkyl radical, x is 0,1, 2 or 3, on average from 0.8 to 1.8, y is 0,1, 2 or 3, on average from 0.01 to 2.0 and z is 0,1, 2 or 3, on average from 0.0 to 0.5, with the proviso that the sum of x, y and z is not more than 3.5.
The organopolysiloxane (A) has a viscosity of from 10 mm2/s to 50,000 mm2/s, ~ferably from 50 mm2/s to 5000 mm2/s, at 25~C.
o Examples of the Cl-C20 hydrocarbon radicals are the C1-C20 alkyl radi-cals and halogen-substituted C1-C20-alkyl radicals listed above in connection with the alkylalkoxysilanes, and the alkenyl radicals, such as the vinyl, allyl,n-5-hexe.,yl, 4-vinylcyclohexyl and 3-norbornenyl radical; aryl radicals, such as the phenyl, biphenylyl, naphthyl and anthryl and phenanthryl radicals;
15 alkaryl radicals, such as o-, m-, p-tolyl radicals, xylyl radicals and ethlphenyl radicals; aralkyl radicals, such as the benzyl radical, the a- and ~phenylethyl radical. The unsubslil~lled Cl~l~alkyl radicals and the phenyl radical are pierel~d.
Although not indicated in the formula given above, some of the radi-2 o cals R can be replaced by hydrogen atoms a*~h~l directly to silicon atomshowever, this is not ~refe..ed.
Examples of the radicals R1 are the methyl, ethyl, n-propyl, iso~;opyl, n-butyl, sec-butyl and tert-butyl radical; pentyl radicals, such as the n-pentylradical and hexyl radicals, such as the n-hexyl radical, the ethyl radicals 25 being ~refelled.
Preferably x has an average value of from 0.9 to 1.1 y has an average value of from 0.4 to 1.2. and z has an average value of from 0.0 to 0.2.
Examples of the aLkoxy-containing organopolysiloxane (A) are those obtainable by reacting methyltrichlorosilane and, optionally, a C1 Cs-3 o alkyltrichlorosilane, or phenyltrichlorosilane, with ethanol in water, such as 2195ql8 the organopolysiloxanes of the empirical formulaCH3Si(OC2H5)0.801.1 or C6HsSi(OC2Hs)0.7201.14.
The impregnating agent added to the architectural coating com-5 position may, in addition to alkylaLtcoxysilanes, include organopolysiloxane (B) as well, which in addition to other organosiloxane units includes those siloxane units having SiC-bonded radicals conhinin~ basic luLIogel4 with the proviso that the amine number of the organopolysiloxane is at least 0.01.
The organopolysiloxanes (B) are yi~fe~ably those comprising units of o the formula R2aR3b(0R4)cSiO4a b c (II), in which R2 le~ieselll~ an identical or different, monovalent, optionally halogen-substituted, SiC-bonded C1-C20 hydrocarbon radical devoid of basic nitrogen4 R3 represents an identical or di~ent, monovalent, opffonally halogen-subsliluled, SiC-bonded Cl~30 hydrocarbon radical containing basic nitrogen, 2 o R4 is idenffcal or different at each occull~l.ce and represents a hydrogen atom or Cl C6 alkyl radical, a is 0, 1, 2 or 3, b is 0, 1, 2 or 3, on average at least 0.05, and c is 0, 1, 2 or 3, 2 5 with the proviso that the sum of a, b and c is less than or equal to 3 and that the amine number of the organopolysiloxane (B) is at least 0.01.
The amine number designates the number of ml of 1 N HCl required to neutralize 1 g of organopolysiloxane (B). The amine number of the organopolysiloxane (B) is at least 0.1, pre~e,ably at least 0.2, and more pref-3 o erably not more than 8, in particular not more than 4.
Examples and ~re~lled examples of the radical R2 are listed above forradical R. The methyl and the isooctyl radical are ~rerel~ed.
2 ! 95q 18 Each silicon atom to which a hydrogen atom is attached also carries a hydrocarbon radical, especially a methyl radical.
Radical R3 is ~r~felably a radical of the formula R52NR6- (m), in which R5 is identical or different and repr~senl~ hydrogen or monovalent, optionally sul~liluled Cl-C10 hydrocarbon radical or Cl-C10 amino hydrocarbon radical, and R6 repl esents a divalent Cl-Cls hydrocarbon radical.
lo Examples of radical R5 are hydrocarbon radicals given for radical R, and amino-sul~lil.lled hydrocarbon radicals, such as aminoalkyl radicals, in which conlexl the aminoethyl radical is pref~..ed.
Each nitrogen atom in the radicals of formula (III) ~refelably carries at least one hydrogen atom.
Radical R6 comprises divalent hydrocarbon radicals having 1 to 10 carbon atoms, plefelably 1 to 4 carbon atoms, and more prefelably the n-propylene radical.
Examples of radical R6 are the methylene, ethylene, propylene, buty-lene, cyclohexylene, octadecylene, phenylene and butenylene radical.
P~efelled examples of radicals R3 are H2N(CH2)3-, H2N(CH2)2NH(CH2)2-, H2N(CH2)2NH(CH2)3-, H2N(CH2)2-, 2 5 H3CNH(CH2)3-, C2H5NH(CH2)3-, H3CNH(CH2)2-, C2H5NH(CH2)2-, H2N(CH2)4-, H2N(CH2)5-, H(NHCH2CH2)3-, C4H9NH(CH2)2NH(CH2)2-, 2195qi8 cyclo C6HllNH(CH2)3-, cyclo C6HllNH(CH2)2-, (CH3)2N(CH2)3-, (CH3)2N(cH2)2-, 5 (C2Hs)2N(CH2)3- and (C2Hs)2N(CH2)2 .
The examples of aL~yl ra~ lc Rl also apply to radical R6.
Examples and plefe~led examples of the radical R~ are listed above for radical Rl. The methyl and the ethyl radical are ~le~led.
The average value for a is from 0 to 2, ~refel ably from 0 to 1.8.
The average value for b is from 0.1 to 0.6, plefe~ably from 0.15 to 0.30.
The average value for c is from 0 to 0.8, prerelably from 0.01 to 0.6.
The organopolysiloxanes (B) have a viscosity of from 5 to 5000, pref-erably from 100 to 3000 mm2/s at 25~C.
Organopolysiloxanes (B) can be prepared, for example by equilibrat-ing or condensing amino-functional silanes with organopolysiloxanes which contain aL~coxy groups and/or hydroxyl grou~s and are free from basic nitro-gen.
The water-containing impregnaffng architectural coating composition 2 o contains from 3% to 25 % by weight, ~rerel ably from 8% to 20 % by weight, of the impregnating agent.
The proportion of optionally used organopolysiloxane (A) and or-ganopolysiloxane (~) together is prere~ably not more than 60% by weight of the impregnating agent.
2 5 The addition of impregnating agent can be carried out directly beforeapplication of the coating, or in-plant while still at the premises of the coat-ing-composition manufacturer.
The impregnating agent is added either as an aqueous emulsion or in pure form to the alclul~l~lral coating composition. For example, the impreg-3 o nating agent is incorporated during the preparation of the architectural coat-ing position, in order to obtain the water-containing impregnating architec-tural coating composition.
If the impregnaffng agent is added as an aqueous emulsion or in pure form to the archile~ ral coaffng composiffon, parffcularly suitable anionic emulsifiers are:
1. Alkyl sulfates, especially those having a chain length of 8 to 18 carbon atoms, alkyl and alkaryl ether sulfates having 8 to 18 carbon atoms in the hydrophobic radical and 1 to 40 ethylene oxide (EO) andlor pro-pylene oxide (PO) units.
2. Sulfonates, especially alkylsulfonates having 8 to 18 carbon atoms, alkylarylsulfonates having 8 to 18 carbon atoms, taurides, esters and monoesters of sulfosuccinic acid with monohydric alcohols or alkyl-phenols having 4 to 15 carbon atoms; opffonally, these alcohols or aLtcylphenols may also be ethoxylated with 1 to 40 EO units.
3. Alkali metal and ammonium salts of carboxylic acids having 8 to 20 carbon atoms in the aL~yl, aryl, alkaryl or aralkyl radical.
5 4. Phosphoric acid parffal esters and their alkali metal and ammonium salts, especially alkyl and alkaryl phosphates having 8 to 20 carbon atoms in the organic radical, alkyl ether phosphates and alkaryl ether phosphates having 8 to 20 carbon atoms in the alkyl or aLkaryl radical and 1 to 40 EO units.
2 0 Parffcularly suitable nonionic emulsifiers are:
5. Polyvinyl alcohol still con~ining from 5% to 50 %, ~referably from 8 to 20 % of vinyl acetate units, and having a degree of polymerizaffon of from 500 to 3000.
6. Alkyl polyglycol ethers, pre~eldbly those having 8 to 40 EO units and2 5 alkyl radicals of 8 to 20 carbon atoms.
7. Alkylaryl polyglycol ethers, ~refelably those having 8 to 40 EO units and 8 to 20 carbon atoms in the alkyl and aryl radicals.
8. Ethylene oxide/propylene oxide (EO/PO) block copolymers, prefer-ably those having 8 to 40 EO and PO units.
3 o 9. Addiffon products of alkylamine having alkyl radicals of 8 to 22 car-bon atoms with ethylene oxide or propylene oxide.
21 95ql 8 10. Fatty acids having 6 to 24 carbon atoms.
11. Alkyl polyglycosides of the formula R-~Zo~ in which R- is a linear or br~n~h~, saturated or unsaturated alkyl radical having on average 8 -24 carbon atoms and ZO is an oligoglycoside radical having on average o = 1 -10 hexose or pentose units, or mixtures thereof.
12. Natural substances and derivatives ll,ereof, such as lecithin, lanolin, saponins, cellulose, cellulose alkyl ethers and carboxy alkyl celluloses, whose alkyl groups each have up to 4 carbon atoms.
13. Linear organo(poly)siloxanes containing polar grou~s, especially those lo cont~ining alkoxy groups of up to 24 carbon atoms and/or up to 40 EO
and/or PO groups.
Particularly suitable cationic emulsifiers are:
14. Salts of prirnary, secondary and tertiary fatty amines having 8 to 24 carbon atoms with acetic acid, sulfuric acid, hydrochloric acid and phosphoric acids.
15. Quarternary alkyl- and alkylbenzeneammonium salts, especially those whose alkyl groups have 6 to 24 carbon atoms, in parffcular the hal-ides, sulfates, phosphates and acetates.
16. Alkylpyridinium, alkylimidazolinium and alkyloxazolinium salts, 2 o especially those whose alkyl chain has up to 18 carbon atoms, espe-cially the halides, sulfates, phosphates and acetates.
Particularly suitable ampholyffc emulsifiers are:
17. Amino acids with long-chain consfftuents, such as N-alkyl~i-(amino-ethyl)glycine or N-alkyl-2-aminopropionic acid salts.
25 18. Betaines, such as N-(3-acylamido~.o~l)-N,N-dimethylammonium salts having a Cs~ls-acyl radical, and aL~yl-imidazolium betaines.
Pl~.2fel.ed emulsifiers are nonionic emulsifiers, especially the addition products of alkylamines with ethylene oxide or propylene oxide as listed above under 9, the alkyl polyglycosides listed above under 11., and the 3 o polyvinyl alcohol listed above under 5. Polyvinyl alcohols still contain from 5% to 20 %, ~refe.dbly from 10% to 15 %, of vinyl acetate units and have a degree of polymerization of from 500 to 3000, ~fe'ably from 1200 to 2000.
~ 2!q5ql8 The plOpO. Lion of emulsifier is from 1% to 30 % by weight, ~refel ably from 2% to 10 % by weight, based on the overall quanffty of the impregnaffng agent.
The water-contPining impregnaffng archileclural coaffng composition 5 may also comprise buffer substances which stabilize the pH in the range from 5 to 8, in which the impregnaffng agent is very stable to hydrolysis. Suitable substances are all organic and inorganic acids and bases which are chemically inert to the other consfftuents of the arcllile-lulal coaffng composiffon, and are in pafficular the aL1cali metal, alkaline earth metal and ammonium salts of 10 carboxylic acids, phosphoric acid, carbonic acid and sulfuric acid. Pfeferel~ce is given to sodium carbonate, sodium bicarbonate, sodium hydrogen phos-phate, and a mixture of aceffc acid and aqueous ammonia soluffon. The quanffty of buffer substances is preferably not more than 3% by weight, pref-erably 1% by weightt of the overall quanffty of the water-containing impreg-15 nating arcl~ lu~ll coating compositions.
In addiffon to the above-described constituents, the water~ontaining impregnating archil~:L~al coating compositions may addiffonally comprise addiffves, such as fungicides, bactericides, algicides, microbicides, odor sub-stances, corrosion inhibitors and anfffoams. The quanffty of addiffves is not 2 o more than 2% by weight, prefrably 0.5% by weight, of the overall quanffty of the water-cont~ining impregnaffng archit~ulal coaffng composiffons.
The i~ llion also relates to an arcl~ al coating composiffon for mineral building materials, which contains from 1% to 30 ~O by weight of Cl-C2~alkyl-C~ C6-alkoxysilane and opffonally alkoxy-containing organo-2 5 polysiloxane (A) as impregnating agents.
In the examples which follow all parts and perce~ ges, unless statedotherwise, are by weight. Unless indicated otherwise, the following exam-ples are carried out at the l~ressure of the surrounding atmosphere, at about 0.10 MPa, and at room temperature, at about 20~C, or at the temperature 3 o which is established when the reactants are combined at room temperature without addiffonal heaffng or cooling. All viscosiffes indicated in the exam-- - 2! ~591 8 ples relate to a tempelal~e of 25~C. The solids content of the emulsions sig-nifies the sum of all components with the exception of water.
Example 1 Silicone resin paint (Comparison Example) To prepare aqueous archiLe~LIl.al coatings, the following components are mixed in the sequence given in a commercial high~speed stirrer apparatus:
336 parts by weight of water 1 part by weight of pigment-dispeising agent 2 parts by weight of fungicide 5 parts by weight of thickener based on cellulose ether 120 parts by weight of titanium dioxide 275 parts by weight of chalk 60 parts by weight of talc 95 parts by weight of an about 54% strength by weight aque-ous silicone resin emulsion consi~Ling of 90 mole% CH3SiO3/2 units, 20 mole%
(CH3)2SiO2/2 units and 10 mole%
C2HsOSiO3/2 units.
2 0 10 parts by weight of a 55% strength by weight aqueous emulsion of a condensation product of an a, ~-dihydroxymethylpolysiloxane having an Si-bonded hydroxyl group in each of the terminal units and N-(2-aminoethyl)-3-aminopro~yltrimethoxysilane in the pres-ence of KOH, having an amine number of about 0.3, a viscosity of about 1500 mm2/s at 25~C and a residual methoxy conk~llt of less than 5 mole%, based on the methoxy 3 o groups initially present in the N-(2-amino-ethyl)-3-amino~ro~ltrimethoxysilane 1 part by weight of ammonia solution - 2 ! 9 59 1 8 95 parts by weight of an approximately 50% strength by weight polymer dispersion based on sty-rene acrylate (Acronal~ 290 D from BASF
AG, Germany) to give: 1000 parts by weightof silicone resin paint Lime sandstone is coated with 200 g/m2 of this silicone resin paint using a brush. After storage of the coated substrate for 14 days at room temperature under standard condiffons, the adhesive strength according to DIN ISO 4624 and the thickness of the hydrophobic zone (depth of penetraffon) underneath the coaffng are determine-l. The latter is determined by breaking the substrate and wetffng the fracture site with water.
The following values are obtained:
Depth of ~l~ellaffon: O mm Adhesive strength: 1.50 N/mm2 Example 2 Silane emulsion EM 8, in the quanffffes indicated in Table 1, is added to the silicone resin paint (SRP) prepared according to Example 1, by slir~ , it in.
2 o Preparaffon of the silane emulsion EM 8: 54 parts by weight of iso-octyltriethoxysilane are emulsified with 6 parts by weight of the con-densaffon product of an a, a)-dihydroxymell-yll,olysiloxane having one Si-bonded hydroxyl group in each of the terminal units and N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in the presence of KOH, having an amine number of about 0.3, a viscosity of about 1500 mm2/s at 25~C and a residual methoxy content of less than 5 mole%, based on the methoxy groups initially present in the N-(2-aminoethyl)-3-amino-propyltrimethoxysilane, 0.5 part by weight of a reaction product of stearylamine and ethylene oxide (Genamin~ 200 from Hoechst AG, 3 o Frankfurt), 2.7 parts by weight of a fatty alcohol C8~10-glycoside inaqueous soluffon (Glukopon~ 225 from Henkel KGaA, Dusseldorf), - 2! 95918 and 36.8 parts by weight of water. The aqueous emulsions are pre-pared by first of all mixing some of the water with emulsifier and emulsif~i,.g amino-functional polysiloxane followed by silane. Both the initially mentioned mixing and the emulsification are carried out in a high-speed stator-rotor stirrer device according to Prof. P. Willems.
The self-priming silicone resin paint obtained is applied to lime sandstone, the substrate is stored and the penetration depth and adhesive strength are determined in accordance with Example 1, giving the values listed in Table 1 below:
Table 1 ExampleAddition ofQuantity of Depth of pene- Adhesive EM 8 to 100 gSRP applied tration sL~ g of SRP
a) 2 g 204 g/m2 0.1 mm 1.90 N/mm2 b) 10g 220g/m2 0.5mm ~2.86N/mm2 c) 20 g 240 g/m2 1.5 mm ~ 2.94 N/mm2 d) 30 g 260 g/m2 2.0 mm ~ 2.90 N/mm2 e) 50 g 300 g/m2 2.5 rnm ~ 2.82 N/rnm2 f) ~ 20 g 240 g/m2 1.5 mm ~ 2.90 N/mm2 Stone removal cracks are found; adhesive strength is greater than the intrinsic strength of the lime sandstone.
~ Addition of 20 g of EM 8 to 100 g of silicone resin paint followed by storage of the mixture at room temperature for 4 months before application to lime sandstone Example 3 (Comparison Example) The silane emulsion EM 8 is used alone as primer composition. For 2 o this purpose it is diluted 1:9 with water. Lime sandstone substrates are treated with this EM 8 dilution in accordance with Example 1, they are stored, and the depth of penetration is determined.
The values obtained are indicated in Table 2 below:
- 2 1 q 59 1 8 Table 2 Example Quantity applied Dep~ of penetration a) 40 g/m2 0.2 mm b) 200 g/m2 1.0 mm c) 400 g/m2 2.0 mm d) 600 g/m2 2.5 mm e) 1000 g/m2 3.0 mm Example 4 Isooctyltriethoxysilane is added during the preparaffon of the sili-cone resin paint in order to obtain a self-priming silicone resin paint.
To prepare aqueous architectural coaffngs, the following components are mixed in the sequence given in a commercial high-speed stirrer apparatus:
53 parts by weight of an a~l)roxill~ately 55% Sllellglll by weight aqueous emulsion of the condensa-ffon product described in Example 2 in connection with the preparaffon of silane emulsion EM 8 8 parts by weight of a fatty alcohol C8~l0 glycoside in aque-ous soluffon (Glukopon~ 225 from Henkel KGaA, Dusseldorf) 106 parts by weight of isooctyltriethoxysilane 379 parts by weight of water 1 part by weight of pigment-dis~elsing agent 2 parts by weight of fungicide 2 o 5 parts by weight of thickener based on cellulose ether 120 parts by weight of fftanium dioxide 275 parts by weight of chalk 60 parts by weight of talc 95 parts by weight of an about 54% strength by weight aque-2 5 ous silicone resin emulsion consisffng of - 21 ~5ql 8 CH3SiO3/2 units, with about 20 mole%
(CH3)*iO2/2 units and about 10 mole%
C2HsOSiO3/2 units.
1 part by weight of ammonia solution 95 parts by weight of an approximately 50% strength by weight polymer dispersion based on sty-rene acrylate (Acronal~ 290 D from BASF
AG, Germany) to give: 1200 parts by weightof silicone resin paint Lime sandstone is coated with 240 g/m2 of this self-priming silicone resin paint using a brush, and, as described in Example 1, the coated substrate is stored and the penetration depth and adhesive strength are determined.
The following values were obtained:
Depth of penetration: 1.5 mm Adhesive strength: 2.75 N/mm2 Example 5 (Comparison Example) 20 g of isooctyltriethoxysilane are mixed with 180 g of aliphatic sol-vent (white spirit). Lime sandstone is treated with this mixture in 2 o accordance with Example 1 by brush application (200 g/m2), the sub-strate is stored and the depth of peneLdtion is determined.
The following value is obtained: Depth of penetration: 1.5 mm Example 6 The silicone resin paint prepared in accordance with Example 1 and 2 5 a commercial masonry emulsion paint based on acrylate polymer (Maxiayl~ from Sto AG, Shihlingen, Germany) are each mixed with 20% by weight of the following silane emulsions Nos. 1 to 4, or water.
The resulting self-priming architectural coatings are applied to lime sandstone, stored and then evaluated in respect of determining the 3 o depth of penetration.
Silane emulsions Nos. 1 to 4:
No. 1: A mixture of 100 g of polysiloxanediol with a molecular weight of 6803 g/mol and 32.5 g of y-amino~rol,yll~ell,oxysilane is heated to 180~C, during which it is stirred and nitrogen is passed through, and is held at this temperature for about 4 hours until 8.8 g of ethanol have been expelled. The resulting product is then cooled. 125 g of this product are mixed with 125 g of isoblllyll.illlethoxysilane. To this formulation there are added 20 g of an emulsifier mixture consisting of a metl yl~olyoxyethylene (15)cocoammonium chloride in a weight ratio of 1:1 and, following the addition of 335 g of water, the formula-tion is processed to form an emulsion using an apparatus which oper-ates in accordance with the rotor/stator principle. The isob.llylLI;-methoxysilane conlent of the emulsion is 40% by weight No. 2: 10 g of n octyltriethoxysilane and 1.5 g of sorbitol monooctade-canoate are stirred vigorously with a magnetic sffrrer, and 38.5 g of water are added over the course of 5 minutes. The n-octyltriethoxy-silane COll~ t of the emulsion is 20% by weight No. 3: 58.4 g of water, 1.25 g of surfactant of the formula H3C-(CH2)u~H=CH-(CH2)u-(OCH2-CH2)s-O-Si(OC2Hs)2-(CH2)u-CH3 2 o where u = ~10 and 0.35 g of sodium octylsulfonate are combined with S~ illg. 40 g of n-octyltriethoxysilane are stirred into this mixture, which is then adjusted to a pH of 7.5 with sodium bicarbonate. The n{~.lyll,iethoxy-silane content of the emulsion is 40% by weight.
No. 4: 61.81 g of a mixture of 0.97 part by weight of n-octyltriethoxy-2 5 silane and 1 part by weight of a resin of average formula (CH3)0.s(Cl2H2s)0.2Si(O)l(OCH3)l are dispersed twice with 1 g of a mix-ture of an ethylene oxide adduct of a fatty alcohol and of a polyethyl-ene oxide sorbitan laurate, having an HLB value of 15, in ~e presence of 0.1 g of ethanolamine and 37.1 g of water in a jet dis~l~l with 2 3 o serial nozzles at 200 bar. The mean particle si~ is 0.834 ~m. Theamount of impregnating agent in the emulsion is 60% by weight ~ 2195918 The results are listed in Table 3 below:
Table 3 Example Added silane Depth of ~n~lralion 6* emulsion F.mul~ n paint SRP Example 1 a) No. 1 - ** 1 mm b) No. 2 -~ 0.5rnm c) No. 3 0.5mm 0.5mm d) No.4 0.5mm 0.5 e) Water 0 mm 0 mm Co~ ~ol~
* Quantity of the self-pr~ning coating applied to lirne sandstone: 240 g/m2.
Addiffon of the silane emulsions Nos. 1 to 4 or addiffon of water to 100 g of architectural coating: 20 g *~ not determined.
Example 7 30 g of EM 8 from Example 2 are stirred into 100 g of the acrylate-0 based masonry emulsion paint of Example 6. The resulting self-priming emulsion paint is applied to lime sandstone and following storage of the substrate shows the following values in accordance with Example 1:
Depth of ~ne11ation: 0.5 mm Adhesive strength: 2.60 N/mm2 Without the addiffon of EM 8, the coating has the following values:
Depth of penetration: 0 mm Adhesive sllenglll; 2.15 N/mm2 le 8 2 o The procedure of Example 7 is repeated. However, 30 g of EM 8 are stirred into 100 g of a silicate emulsion paint (ISPO~-Silikatfarbe from Ispo GmbH, Kriftel). The following depth of penetration of the self-priming silicate emulsion paint is found: 1.5 mm. Without the addi-tion of EM8 the depth of penetration is 0 mm.
Claims (6)
1. A process for the simultaneous coating and water-repellant impregnation of mineral building material, comprising applying in a dried thickness of at least 100 µm to the mineral building material an architectural coating composition containing from 1% to 30% by weight of C1-C20-alkyl-C2-C3- alkoxysilane impregnating agent, where the percent weight of the impregnating agent is based on the total weight of the architectural coating composition including the impregnating agent.
2. The process as claimed in claim 1, wherein the architectural coating composition is selected from the group consisting of paints and plas-ters.
3. The process as claimed in claim 1, wherein the C1-C20-alkyl-C1-C6-alkoxysilanes has 1 or 2 identical or different, optionally halogen-substituted SiC-bonded, monovalent C1-C20-alkyl radicals, and the remainder of the radicals present are identical or different C1-C6-alkoxy radicals.
4. The process as claimed in claim 1, wherein the impregnating agent further comprises any alkoxy-containing organopolysiloxane (A).
5. The process as claimed in claim 1, wherein the impregnating agent further comprises an organopolysiloxane (B) having SiC-bonded radi-cals containing basic nitrogen, with the proviso that the amine number of the organopolysiloxane is at least 0.01.
6. An architectural coating composition which is selected from the group of paints, plasters, fillers, reinforcing compositions, filling compositions and synthetic resin bound coatings for mineral building materials, which contains from 1% to 30% by weight of C1-C20-alkyl-C2-C3- alkoxysilane and optionally alkoxy-containing organopolysiloxane (A) as impregnating agents, said coating capable of providing a dried coating with a thickness of about 100 µm or more.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19605674.8 | 1996-02-15 | ||
| DE19605674A DE19605674A1 (en) | 1996-02-15 | 1996-02-15 | Self-priming building material coatings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2195918A1 CA2195918A1 (en) | 1997-08-16 |
| CA2195918C true CA2195918C (en) | 2001-06-12 |
Family
ID=7785522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002195918A Expired - Fee Related CA2195918C (en) | 1996-02-15 | 1997-01-24 | Self-priming architectural coatings |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0791566B1 (en) |
| JP (1) | JPH09221374A (en) |
| KR (1) | KR100234897B1 (en) |
| AT (1) | ATE210107T1 (en) |
| CA (1) | CA2195918C (en) |
| CZ (1) | CZ292607B6 (en) |
| DE (2) | DE19605674A1 (en) |
| ES (1) | ES2167628T3 (en) |
| HU (1) | HU216909B (en) |
| PL (1) | PL184432B1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL191077B1 (en) * | 1997-09-25 | 2006-03-31 | Ge Bayer Silicones Gmbh & Co | Method of and apparatus for obtaining siliconic emulsions |
| CA2252266A1 (en) * | 1997-11-13 | 1999-05-13 | Rohm And Haas Company | Aqueous coating composition with extended open time |
| CA2253155A1 (en) * | 1997-11-13 | 1999-05-13 | Robert Krasnansky | Aqueous coating composition with improved block resistance |
| US6040368A (en) * | 1998-11-18 | 2000-03-21 | Rohm And Haas Company | Aqueous coating compositions with extended open time |
| US6238470B1 (en) | 1998-11-18 | 2001-05-29 | Rohm And Haas Company | Aqueous coating composition with improved block resistance containing alkyl polyglycoside surfactant mixtures |
| DE102004034266A1 (en) * | 2004-07-15 | 2006-02-09 | Ge Bayer Silicones Gmbh & Co. Kg | Phyllosilicate-containing polysiloxane compositions |
| JP2007008801A (en) * | 2005-06-01 | 2007-01-18 | Idm:Kk | Protective/reinforcing material for cement-applied surface, and cement spray coating material |
| DE102007013077A1 (en) | 2007-03-19 | 2008-09-25 | Wacker Chemie Ag | Aqueous paints |
| DE102008002570A1 (en) | 2008-06-20 | 2009-12-24 | Wacker Chemie Ag | Nanoparticulate silicone organocopolymers and their use in coating compositions |
| ES2388843B2 (en) * | 2011-03-21 | 2013-12-12 | Universidad De Cádiz | CONSOLIDANT, HYDROFUGENT AND REPELLENT PRODUCT OF STAINS FOR CARBONATED ROCKS AND OTHER CONSTRUCTION MATERIALS. |
| ES2394933B1 (en) * | 2011-06-24 | 2013-12-11 | Universidad De Cádiz | SELF-CLEANING AND CONSOLIDATING PRODUCT FOR ROCKS AND OTHER CONSTRUCTION MATERIALS. |
| WO2024129377A1 (en) * | 2022-12-14 | 2024-06-20 | Rohm And Haas Company | Coating composition |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1219576A1 (en) * | 1982-07-05 | 1986-03-23 | Всесоюзный Научно-Исследовательский Институт Деревообрабатывающей Промышленности | Compound for producing heat-insulating dry plaster |
| US4648904A (en) * | 1986-02-14 | 1987-03-10 | Scm Corporation | Aqueous systems containing silanes for rendering masonry surfaces water repellant |
| SU1738781A1 (en) * | 1990-01-08 | 1992-06-07 | Белорусский Политехнический Институт | Front paint |
| US5316799A (en) * | 1992-10-30 | 1994-05-31 | Advanced Chemical Technologies, Inc. | Method for applying paint with a water repellant composition |
| DE4242445A1 (en) * | 1992-12-16 | 1994-06-23 | Wacker Chemie Gmbh | Compositions for impregnating mineral building materials |
| US5449712A (en) * | 1993-01-13 | 1995-09-12 | Thoro System Products, Inc. | Organosilicon emulsions for rendering porous substrates water repellent |
-
1996
- 1996-02-15 DE DE19605674A patent/DE19605674A1/en not_active Withdrawn
- 1996-12-05 CZ CZ19963580A patent/CZ292607B6/en not_active IP Right Cessation
-
1997
- 1997-01-24 CA CA002195918A patent/CA2195918C/en not_active Expired - Fee Related
- 1997-02-12 KR KR1019970004137A patent/KR100234897B1/en not_active IP Right Cessation
- 1997-02-13 DE DE59705602T patent/DE59705602D1/en not_active Expired - Fee Related
- 1997-02-13 EP EP97102294A patent/EP0791566B1/en not_active Expired - Lifetime
- 1997-02-13 ES ES97102294T patent/ES2167628T3/en not_active Expired - Lifetime
- 1997-02-13 JP JP9028630A patent/JPH09221374A/en active Pending
- 1997-02-13 AT AT97102294T patent/ATE210107T1/en not_active IP Right Cessation
- 1997-02-14 PL PL97318491A patent/PL184432B1/en not_active IP Right Cessation
- 1997-02-14 HU HU9700445A patent/HU216909B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PL318491A1 (en) | 1997-08-18 |
| KR100234897B1 (en) | 1999-12-15 |
| DE59705602D1 (en) | 2002-01-17 |
| DE19605674A1 (en) | 1997-08-21 |
| CA2195918A1 (en) | 1997-08-16 |
| CZ292607B6 (en) | 2003-11-12 |
| HUP9700445A3 (en) | 1998-06-29 |
| EP0791566A1 (en) | 1997-08-27 |
| EP0791566B1 (en) | 2001-12-05 |
| ES2167628T3 (en) | 2002-05-16 |
| ATE210107T1 (en) | 2001-12-15 |
| CZ358096A3 (en) | 1997-12-17 |
| KR970061828A (en) | 1997-09-12 |
| JPH09221374A (en) | 1997-08-26 |
| HU216909B (en) | 1999-10-28 |
| PL184432B1 (en) | 2002-10-31 |
| HUP9700445A2 (en) | 1997-11-28 |
| HU9700445D0 (en) | 1997-04-28 |
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