CA2060802A1 - Use of a copolymer based on long-chain mono-olefins and/or alkylvinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for hydrophobizing colloidal sealing dicarboxylic anhydrides for hydrophobizing colloidal sealing compounds, plasters, paints and building adhesives - Google Patents
Use of a copolymer based on long-chain mono-olefins and/or alkylvinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for hydrophobizing colloidal sealing dicarboxylic anhydrides for hydrophobizing colloidal sealing compounds, plasters, paints and building adhesivesInfo
- Publication number
- CA2060802A1 CA2060802A1 CA 2060802 CA2060802A CA2060802A1 CA 2060802 A1 CA2060802 A1 CA 2060802A1 CA 2060802 CA2060802 CA 2060802 CA 2060802 A CA2060802 A CA 2060802A CA 2060802 A1 CA2060802 A1 CA 2060802A1
- Authority
- CA
- Canada
- Prior art keywords
- copolymer
- polymerization
- olefins
- hydrophobizing
- dicarboxylic anhydrides
- 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.)
- Abandoned
Links
- 229920001577 copolymer Polymers 0.000 title claims abstract description 90
- 150000008064 anhydrides Chemical class 0.000 title claims abstract description 37
- 150000001875 compounds Chemical class 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 150000002170 ethers Chemical class 0.000 title claims abstract description 22
- 239000003973 paint Substances 0.000 title claims abstract description 22
- 239000000853 adhesive Substances 0.000 title claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 12
- 150000005673 monoalkenes Chemical class 0.000 title abstract description 3
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 10
- 239000000178 monomer Substances 0.000 claims description 39
- 238000006116 polymerization reaction Methods 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 18
- 239000011505 plaster Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- 150000001412 amines Chemical class 0.000 claims description 12
- 239000002585 base Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims description 7
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 7
- 238000003797 solvolysis reaction Methods 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 238000009877 rendering Methods 0.000 claims description 4
- 150000003335 secondary amines Chemical class 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- 229940044600 maleic anhydride Drugs 0.000 description 21
- 239000000203 mixture Substances 0.000 description 21
- 150000001336 alkenes Chemical class 0.000 description 20
- 239000003999 initiator Substances 0.000 description 20
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 20
- 239000006185 dispersion Substances 0.000 description 17
- 239000002904 solvent Substances 0.000 description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 16
- -1 n-docosylvinyl Chemical group 0.000 description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 11
- 238000006386 neutralization reaction Methods 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 10
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- 235000011121 sodium hydroxide Nutrition 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 150000001298 alcohols Chemical class 0.000 description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000084 colloidal system Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 239000001993 wax Substances 0.000 description 6
- 150000003863 ammonium salts Chemical class 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 4
- 239000013011 aqueous formulation Substances 0.000 description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 4
- 230000003472 neutralizing effect Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 229920000058 polyacrylate Polymers 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000003760 tallow Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 3
- 230000032050 esterification Effects 0.000 description 3
- 238000005886 esterification reaction Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000003505 polymerization initiator Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000012673 precipitation polymerization Methods 0.000 description 3
- 230000002028 premature Effects 0.000 description 3
- 150000003141 primary amines Chemical class 0.000 description 3
- 238000010557 suspension polymerization reaction Methods 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 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
- QEGNUYASOUJEHD-UHFFFAOYSA-N 1,1-dimethylcyclohexane Chemical compound CC1(C)CCCCC1 QEGNUYASOUJEHD-UHFFFAOYSA-N 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- NSOAQRMLVFRWIT-UHFFFAOYSA-N 1-ethenoxydecane Chemical compound CCCCCCCCCCOC=C NSOAQRMLVFRWIT-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- KDSNLYIMUZNERS-UHFFFAOYSA-N 2-methylpropanamine Chemical compound CC(C)CN KDSNLYIMUZNERS-UHFFFAOYSA-N 0.000 description 2
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004435 Oxo alcohol Substances 0.000 description 2
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 2
- IIEWJVIFRVWJOD-UHFFFAOYSA-N ethylcyclohexane Chemical compound CCC1CCCCC1 IIEWJVIFRVWJOD-UHFFFAOYSA-N 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 150000003333 secondary alcohols Chemical class 0.000 description 2
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 2
- DEUGOISHWHDTIR-UHFFFAOYSA-N (1-hydroxy-5,5-dimethylhexyl) 2-methylpropanoate Chemical compound C(C(C)C)(=O)OC(CCCC(C)(C)C)O DEUGOISHWHDTIR-UHFFFAOYSA-N 0.000 description 1
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 description 1
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- RQHGZNBWBKINOY-PLNGDYQASA-N (z)-4-tert-butylperoxy-4-oxobut-2-enoic acid Chemical compound CC(C)(C)OOC(=O)\C=C/C(O)=O RQHGZNBWBKINOY-PLNGDYQASA-N 0.000 description 1
- JTQQDDNCCLCMER-CLFAGFIQSA-N (z)-n-[(z)-octadec-9-enyl]octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCNCCCCCCCC\C=C/CCCCCCCC JTQQDDNCCLCMER-CLFAGFIQSA-N 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- UGCSPKPEHQEOSR-UHFFFAOYSA-N 1,1,2,2-tetrachloro-1,2-difluoroethane Chemical compound FC(Cl)(Cl)C(F)(Cl)Cl UGCSPKPEHQEOSR-UHFFFAOYSA-N 0.000 description 1
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 description 1
- HSLFISVKRDQEBY-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)cyclohexane Chemical compound CC(C)(C)OOC1(OOC(C)(C)C)CCCCC1 HSLFISVKRDQEBY-UHFFFAOYSA-N 0.000 description 1
- GCYUJISWSVALJD-UHFFFAOYSA-N 1,1-diethylcyclohexane Chemical compound CCC1(CC)CCCCC1 GCYUJISWSVALJD-UHFFFAOYSA-N 0.000 description 1
- KNKRKFALVUDBJE-UHFFFAOYSA-N 1,2-dichloropropane Chemical compound CC(Cl)CCl KNKRKFALVUDBJE-UHFFFAOYSA-N 0.000 description 1
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- VFWCMGCRMGJXDK-UHFFFAOYSA-N 1-chlorobutane Chemical compound CCCCCl VFWCMGCRMGJXDK-UHFFFAOYSA-N 0.000 description 1
- KQDDMFCWCZIWOL-UHFFFAOYSA-N 1-ethenoxy-10-methylundecane Chemical compound CC(C)CCCCCCCCCOC=C KQDDMFCWCZIWOL-UHFFFAOYSA-N 0.000 description 1
- ZGNCMYIGUNROMY-UHFFFAOYSA-N 1-ethenoxy-11-methyldodecane Chemical compound CC(C)CCCCCCCCCCOC=C ZGNCMYIGUNROMY-UHFFFAOYSA-N 0.000 description 1
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- LAYAKLSFVAPMEL-UHFFFAOYSA-N 1-ethenoxydodecane Chemical compound CCCCCCCCCCCCOC=C LAYAKLSFVAPMEL-UHFFFAOYSA-N 0.000 description 1
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- 229940043265 methyl isobutyl ketone Drugs 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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- HKUFIYBZNQSHQS-UHFFFAOYSA-N n-octadecyloctadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCCCC HKUFIYBZNQSHQS-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-N sodium;hydron;carbonate Chemical compound [Na+].OC(O)=O UIIMBOGNXHQVGW-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- NMOALOSNPWTWRH-UHFFFAOYSA-N tert-butyl 7,7-dimethyloctaneperoxoate Chemical compound CC(C)(C)CCCCCC(=O)OOC(C)(C)C NMOALOSNPWTWRH-UHFFFAOYSA-N 0.000 description 1
- SWAXTRYEYUTSAP-UHFFFAOYSA-N tert-butyl ethaneperoxoate Chemical compound CC(=O)OOC(C)(C)C SWAXTRYEYUTSAP-UHFFFAOYSA-N 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
- WMXCDAVJEZZYLT-UHFFFAOYSA-N tert-butylthiol Chemical compound CC(C)(C)S WMXCDAVJEZZYLT-UHFFFAOYSA-N 0.000 description 1
- 150000003509 tertiary alcohols Chemical class 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
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- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/12—Hydrolysis
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/50—Chemical modification of a polymer wherein the polymer is a copolymer and the modification is taking place only on one or more of the monomers present in minority
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Building Environments (AREA)
Abstract
BASF AKTIENGESELLSCHAFT 21 O.Z. 0050/42208 Use of a Copolymer Based on Long-chain Mono-olefins and/or Alkylvinyl Ethers and Ethylenically Unsaturated Dicarboxylic Anhydrides for Hydrophobiz-ing Colloidal Sealing Compounds, Plasters, Paints and Building Adhesives Abstract of the disclosure:
Copolymers obtained by free-radical copolymerization of (a) from 30% to 50% molar of one or more C13-C40-mono-olefins and/or C10-C40-alkylvinyl ethers with (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8-dicarboxylic anhydrides are used as means for hydrophobizing colloidal sealing compounds, plasters, paints, and building adhesives.
Copolymers obtained by free-radical copolymerization of (a) from 30% to 50% molar of one or more C13-C40-mono-olefins and/or C10-C40-alkylvinyl ethers with (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8-dicarboxylic anhydrides are used as means for hydrophobizing colloidal sealing compounds, plasters, paints, and building adhesives.
Description
2~0~2 BASFAKTlE- GESELLSCh~FT o.~. ooso/~220~
Use ~f a Copolymer ~ased on Long-chain M~no-olefins and/or Alkylvinyl Ethers and Ethylenically ~)nsaturated Dicarboxylic Anhydrides for Hydrophobizing Coll~idal Sealing Dicarboxyiic Anhydrides for Hydrophobizing C::olloidal Sealing Compounds, Plas~ers, P~ints and Building ~dhesives The invention relates to the use of a copolymer obtained by free-radical copolymerization of (a) from 30% to 50% molar of one or more C13-C40-mono-olefins and/or s C1O-C40-alkylvinyl ethers with (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8- dicarboxylic anhydrides as a means for rendering colloidal sealing compnunds, plasters, paints, and building adhesives hydrophobic.
The water resistance of colloidal sealing compounds, plasters, paints, and building adhesives is frequently improved by the use of hydrophobizing S agents.
Examples of such hydrophobizing agents are silicones, paraffins, ethylene wax dispersions, metallic soaps, eg zinc stearate, and distearyl dilcetene. The use of silicones often leads to surface flaws such as fish eyes due to incom-20 patability problems, and also it is not always possible to apply a second coatof a paint containing silicones, since the latter migrate to the surface of thefirst coat, where they exert a negative influence on adhesion. Ethylene wax dispersions do not generally create flow problems, but they reduce the gloss of sparingly pigmented paints, that is, they frequently act as flatting agents.
25 Their hydrophobizing action is, moreover, only fair; since such ethylene wax dispersions contain large amounts of emulsifier, which are frequently used in an amount of from 4% to 15%, based on the wax.
It is very difficult to achieve a homogeneous distribution of metallic soaps.
30 such as zinc stearate, in aqueous paint mixtures, and said soaps also have a flatting effect. Ion-sensitive dispersions might coagulate due to the presence of such metallic soaps.
It is not easy to work distearyl diketene, either alone or dissolved in an ;
BAS~AKTIENGEsQLscHAFr 2 0 6 O 8 0 2 o.z.oaso/42208 organic solvent, into aqueous paint formulations.
The water resistance may also be improved by the addition of reactive sub-stances such as resins based on melamine, urea, or phenol, or alkylamino-silanes or alkylchlorosilanes. Such resins are only effective at relatively hightemperatures, whilst the silanes shorten the shelf life of aqueous disperse systems (cf. Rompp, 1983, Vol. 3, ,o. 1796, Frank'sche Ver/agsanstal~
W. Keller & Co., Stuttgart, and ~. Rein~ard, Dispersion~n synthetischer Hoch-polymerer, Part 2, Springer Ver/ag, Berlin, 1969).
DE-OS 3, 733, 172 describes a fuel for Otto-cycle engines which contains, inter alia, a small amount of a copolyrner of (a) C1-~30-alkyivinyl ethers or mixtures of Cl-C30-alkylvinyl ethers with olefins of from 2 to 40 carbon atoms and (b) maleic anhydride and which have a molar mass of from 500 s to 20,000 g/mole and in which some or all of the anhydride groups of the copolymer have been reacted with an alkali metal base or alkaline earth metal base and the remainder of the carboxyl groups have been reacted with an alcohol and/or amine to form the corresponding ester groups and/or amide groups, and/or ammonium salts.
It is an object of the invention to provide an improved agent for hydrophobiz-ing sealing compounds, plasters, paints, and buildinJ adhesives.
According to the invention, this object is achieved by the use of a copoly-25 mer obtained by free-radical copolymerization of (a) from 30% to 50% molar of one or more C~3-C40-mono-olefins and/or C10-C40-alkylvinyl ethers with 30 (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8-dicarboxylic anhydrides as a means for rendering colloidal sealing compounds, plasters, paints, and building adhesives hydrophobic.
Use ~f a Copolymer ~ased on Long-chain M~no-olefins and/or Alkylvinyl Ethers and Ethylenically ~)nsaturated Dicarboxylic Anhydrides for Hydrophobizing Coll~idal Sealing Dicarboxyiic Anhydrides for Hydrophobizing C::olloidal Sealing Compounds, Plas~ers, P~ints and Building ~dhesives The invention relates to the use of a copolymer obtained by free-radical copolymerization of (a) from 30% to 50% molar of one or more C13-C40-mono-olefins and/or s C1O-C40-alkylvinyl ethers with (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8- dicarboxylic anhydrides as a means for rendering colloidal sealing compnunds, plasters, paints, and building adhesives hydrophobic.
The water resistance of colloidal sealing compounds, plasters, paints, and building adhesives is frequently improved by the use of hydrophobizing S agents.
Examples of such hydrophobizing agents are silicones, paraffins, ethylene wax dispersions, metallic soaps, eg zinc stearate, and distearyl dilcetene. The use of silicones often leads to surface flaws such as fish eyes due to incom-20 patability problems, and also it is not always possible to apply a second coatof a paint containing silicones, since the latter migrate to the surface of thefirst coat, where they exert a negative influence on adhesion. Ethylene wax dispersions do not generally create flow problems, but they reduce the gloss of sparingly pigmented paints, that is, they frequently act as flatting agents.
25 Their hydrophobizing action is, moreover, only fair; since such ethylene wax dispersions contain large amounts of emulsifier, which are frequently used in an amount of from 4% to 15%, based on the wax.
It is very difficult to achieve a homogeneous distribution of metallic soaps.
30 such as zinc stearate, in aqueous paint mixtures, and said soaps also have a flatting effect. Ion-sensitive dispersions might coagulate due to the presence of such metallic soaps.
It is not easy to work distearyl diketene, either alone or dissolved in an ;
BAS~AKTIENGEsQLscHAFr 2 0 6 O 8 0 2 o.z.oaso/42208 organic solvent, into aqueous paint formulations.
The water resistance may also be improved by the addition of reactive sub-stances such as resins based on melamine, urea, or phenol, or alkylamino-silanes or alkylchlorosilanes. Such resins are only effective at relatively hightemperatures, whilst the silanes shorten the shelf life of aqueous disperse systems (cf. Rompp, 1983, Vol. 3, ,o. 1796, Frank'sche Ver/agsanstal~
W. Keller & Co., Stuttgart, and ~. Rein~ard, Dispersion~n synthetischer Hoch-polymerer, Part 2, Springer Ver/ag, Berlin, 1969).
DE-OS 3, 733, 172 describes a fuel for Otto-cycle engines which contains, inter alia, a small amount of a copolyrner of (a) C1-~30-alkyivinyl ethers or mixtures of Cl-C30-alkylvinyl ethers with olefins of from 2 to 40 carbon atoms and (b) maleic anhydride and which have a molar mass of from 500 s to 20,000 g/mole and in which some or all of the anhydride groups of the copolymer have been reacted with an alkali metal base or alkaline earth metal base and the remainder of the carboxyl groups have been reacted with an alcohol and/or amine to form the corresponding ester groups and/or amide groups, and/or ammonium salts.
It is an object of the invention to provide an improved agent for hydrophobiz-ing sealing compounds, plasters, paints, and buildinJ adhesives.
According to the invention, this object is achieved by the use of a copoly-25 mer obtained by free-radical copolymerization of (a) from 30% to 50% molar of one or more C~3-C40-mono-olefins and/or C10-C40-alkylvinyl ethers with 30 (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8-dicarboxylic anhydrides as a means for rendering colloidal sealing compounds, plasters, paints, and building adhesives hydrophobic.
3;
We have also founcl that copolymers in which the anhydride groups have been solvolyzed following polymeri7ation are very suitable for rendering seal-ing compounds, plasters, paints, and building adhesives hydrophobic.
40 We have further found that copolymers in which the anhydride groups have been solvolyzed and at least 10% of the resulting carboxyl groups have been -- , , ~ :
~ ' '. . . ~
-~ .~ .. - . , ~
- 2 0 ~ 2 E~ASFAKTIE~GESE~LScHAFT 3 o.z.ooso/42208 - neutralized with a base are particularly well suited for use as hydrophobizing agents.
The invention also relates to colloidal sealin~ compounds, plasters, paints, s and building adhesives containing the aforementioned copolymers.
Said copolyrners are described in, say, DE-OS 3,733,172. They are prepared by copolymerizing monomer from group (a) with monomer from group (b) and optionally solvolyzing the anhydride !3roups of the resulting copolymer 10 and partially neutralizing the carboxyl groups produced by said solvolysis.
The monomers in group (a) are C10-C40-al~ylvinyl ethers or mixtures of said alkylvinyl ethers with C,3-C40-mono-olefins. Examples of said alkylvinyl ethers are n-decylvinyl ether, dodecylvinyl ether, isododecylvinyl ether, n-tri-15 decylvinyl ether, isotridecylvinyl ether, n-tetradecylvinyl ether, n-hexadecyl-vinyl ether, n-oc~adecylvinyl ether, n-eicosylvinyl ether, n-docosylvinyl ether,n-tetracosylvinyl ether, n-hexacosylvinyl ether, n-octacosylvinyl ether, oleyl-vinyl etherJ and mixtures of the above alkylvinyl ethers.
20 Suitable mono-olefins having from 13 to 40 carbon atoms are, for example, tetradecene-1, hexadecene-1, octadecene-1, C20-olefin-1, C22-olefin-1, C24-olefin-1, C2~-C24-olefin-l, C24-C28-olefin-~, C30-olefin-l, C35-olefin-~, and C40-olefin-1. These olefins or olefin mixtures are commercial products. As a result of the processes involved in their manufacture, the olefins may 25 contain small amounts of inert hydrocarbons, for example up to about 5% w/w. The olefins are usually used in commercial quality and do not require additional purification. The preferred olefins are C~6-C30-olefins.
When employed as monomers of group (a) for copolymerization, the said olefins are used either alone or in admixture with the aforementioned alkyl-vinyl ethers. Alternatively, these alkylvinyl ethers may be used alone as monomers of group (a). The proportion of alkylvinyl ether and olefin may be from 0% to 100% w/w in each case, and is preferably from ~0% to 90% w/w.
35 The components (b~ of the copolymers are monoethylenically unsaturated C4-C8-dicarboxylic anhydrides, for example maleic anhydride, itaconic anhydride, mesaconic anhydride, citraconic anhydride, methylenemalonic anhydride, and mixtures thereof. Of these anhydrides, we prefer the C4-C6-dioic anhydrides, especially maleic anhydride.
The copolymers contain from 30% to 50% molar of monomer units from c~
., --- - : .. - . .
: ' ~
. - .
.~:
2 ~ 9 2 ~ASFA~ ENGESELLSC~A~T 4 o.z.ooso/42208 group (a) and from 50% to 70% molar of said dicarboxylic anhydride units, and their gram-rnolecular Yveight is generally from 500 to 20,000, preferably from 800 to tO,000, g/mole. They are preferably obtained by polymerizing monomers from groups (a) and (b) in a molar ratio of from 1:1 to 1:2. It is s particularly preferred to polymerize the rnonomers (a) and (b) in a molar ratio of approximately 1:1 or to use an excess of monomer from group (b) of not more than 10% w/w.
The copolymers may be prepared by any conventional polymerization process, for example by polymerization in substance, in suspension, or in solution, or by precipitation. Copolymerization is preferably carried out in thepresence of ~ree-radical compounds. The amount of such compounds required is generally from 0% to 10% w/w, and preferably from 0.2% to 5%
w/w, based on the weight of monomers involved in the copolymerization. All of the aforementioned polymerization processes are carried out with the exclusion of oxygen, preferably under a blanket of nitrogen. All of said polymerization processes are carried out in conventional apparatus such as autoclaves and boilers equipped with, say, anchor screws, blade mixers, impeller mixers, or multistage countercurrent pulse mixers. We particularly 20 prefer to polymerize the monomers from groups (a) and (b) in substance.
This is carried out at a temperature of from 80 to 300C, preferably frGm 120 to 200C, the lower limit of the selected range being at least 20C
above the glass transition temperature of the polymer formed. The polymerization conditions are adjusted according to the desired molecular 25 weight of the target copolymer. Polymerization at high temperatures results in copolymers of low molecular weight, whilst low-temperature polymeriza-tion yields polymers of high molecular weight. The amount of polymerization initiator also has an influence on the molecular weight. In general, an amount of from 0% to 10% w/w of free-radical polymerization initiators is 30 required, based on the total weight of monomer used for polymerization.
Larger quantities of initiator lead to copolymers of lower molecular weight.
The monomers of groups (a) and (b) may be polymerized in the absence of polymerization initiators, if desired, provided the temperature is above 200C.
That is to say, the use of initiators is not obligatory, since said monomers 35 (a) and (b) undergo lFree- radical polymerization at temperatures above 200C in the presence or absence of initiators.
Examples of suitable polymerization initiators are acetylcyclohexane sulfonyl-peroxide, diacetyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, di-2-40 ethylhexyl peroxydicarbonate, t-butyl peroxyneodecanoate, 2,2'-azo-bis(4-methoxy-2,4-dimethylvaleronitrile), t-butyl peroxypivalate, t-butyl peroxy-2-- . . . . .
- -- ~ ~ :- ~ . ' , ' ' BASFAKTlEr GESELLSCHAFr 5 2 ~ ~ O ~ 0 2 o z.ooso/42208 ethylhexanoate, t-butyl peroxymaleate, 2,2'-azo-bis(isobutyronitrile), bis(t-butyl-peroxy)cyclohexane, t-butyl peroxyisopropylcarbonate, t-butyl peracetate, di-t-butyl peroxide, di-t-amyl peroxide, cum0ne hydroperoxide, and t-butyl hydroperoxide. The said initiators may be used alone or in admixture with each other. When the monomers are polymerized in substance, the initiator or mixture of initiators is fed to the polymerization reactor preferably as a separate stream or dissolved or dispersed in the monomer from group (a).
Redox co-initiators may, of course, be used in the copolymerization process, examples being benzoin, dimethylaniline, ascorbic acid, and organically soluble complexes of heavy metals such as copper, cobalt, iron, manganese, nickel, and chromium. The use of redox co-initiator permits the use of lower temperatures for the polymerization. The normally used amount of redox co-initiator is ~rom about 0.1 to ~,000 ppm, preferably from 0.1 to 1,000 ppm, based on total monomers. If the poiymerization of the monomer mixture is to be commenced at the lower limit of the temperature range to be used for polymerization and is to be completed at a higher ternperature, it will be advantageous to use at least two different initiators which decompose at different temperatures, so that a sufficient concentration of free radicals willbe present at each temperature level.
When it is desired to manufacture polymers of low molecular weight, it will often be expedient to carry out the copolymerization in the presence of a chain stoppage regulator. Conventional regulators may be used for this purpose, for example C1-C4-aldehydes, formic acid, and compounds con-Z5 taining organic SH groups, such as 2-mercapto-ethanol, 2-mercaptopropanol, mercapto-acetic acid, mercaptopropionic acid, t-butyl mercaptan, n-dodecyl mercaptan, and t-dodecyl mercaptan. These polymerization regulators are generally used in a concentration of from 0.1% to 10% w/w, based on the total monomers.
The copolymerization may be carried out batchwise or continuously. For example, one or more alkylvinyl ethers or one or more olefins or a mixture of one or more alkylvinyl ethers with at least one olefin may be placed in the reactor and heated to the desired polymerization temperature with 35 stirring. Once the ~emperature of the monomer(s~ in the reactor has reached the desired value for polymerization, the ethylenically unsaturated dicarboxylicanhydride is added. If an initiator is used, this is added to the reaction mixture preferably as a separate stream or dissolved in one of the mono-mers of group la) to take part in the polymeri7ation. The po~ymerization 40 regulator, if used, is added to the polymerization mixture either as a separate stream or also dissolved in one of the monomers of group (a). The . .: ~ . ~
.
.
~A5FAKTIENGEsELLscHAFT 2 3 ~ 2 o.z.ooso/42208 ethylenically unsaturated carboxylic anhydride, in particular maleic anhydride, is preferably added to the reaction mixtura as molten substanGe. The temperature of the molten maleic anhydride may be from 60 to 1 00C, preferably from 70 to 90C.
s The monomers of groups (a) and (b) rnay, of course, be processed by methods such as are used in precipitation or suspension polymerization.
In precipitation polymerization, use is made of a solvent in which the monomers, eg vinyl ether and/or olefin and maleic anhydride, are soluble, but in which the resultin~ polymer is insoluble, with the result that the latterprecipitates. Examples of such solvents are aromatic hydrocarbons such as benzene, toluene, o-xylene, m-xylene, p-xylene, and commercial xylene mixtures, ethylben7ene, cumene, and halohydrocarbons such as methylene chloride, 1,1- and 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloro-ethylene, 1,1,2-trichloroethane, perchloroethylene, 1,2-dichloropropane, butyl chloride, 1,1,2-trichloro-1,2,2-trifluoroethane, 1,~,1,2-tetrachloro-2,2-difluoro-ethane, 1,1,2,2-tetrachloro-1,2-difluoroethane, and ethers such as diethyl ether, dipropyl ether, dibutyl ether, methyl-t-butyl ether, diethyleneglycoldi-20 methyl ether, and mixtures thereof.
In suspension polymerization, solvents are used in which all or at least oneof the monomers and the resulting polymer are insoluble. Suitable solvents for this purpose are straight-chain and branched-chain aliphatic and 25 cycloaliphatic hydrocarbons. Examples of preferred solvents are pentane, hexane, heptane, octane, iso-octane, cyclohexane, methylcyclohexane, ethylcyclohexane, dimethylcyclohexane, diethylcyclohexane, and mixtures thereof.
30 When polymerization is carried out by the precipitation method, it is advantageous, particularly if the concentrations of monomer or copolymer are higher than 40% w/w, to operate in the presence of a protective colloid in order to avoid aggregation. In the case of suspension polymeri~ation it is obligatory to operate in the presence of a protective colloid, in order to 35 prevent undesirable agglomeration of the resulting polymer.
Suitable protective colloids are polymeric substances which are readily soluble in solvents and are inert to the monomers. Examples of suitable substances are copolymers of maleic anhydride with C~2-C30-alkylvinyl ethers and/or olefins of from 8 to 20 carbon atoms and preferably their monoesters with C~0-C20-alcohols, or monoamides or diamides with C10-C20-.
BASFAKTIENGESELLSCHAFT 7 2 ~ 2 o.z.ooso/42208 alkylamines, and poly(C,-C20-alkyl)vinyl ethers such as polymethylvinyl ether, polyethylvinyl ether, poly-isobutylvinyl ether, and polyoctadecylvinyl ether. The amount of protective colloid used is normally between 0.05% to 4% w/w and is preferably between 0.1% and 2% w/w ~based on totai monomers), and s it is often an advantage to use a combination of two or more protective colloids.
To carry out the polymerization, it is advantageous to place the solvent, protective colloid and one of the monomers in a reactor and, at the desired lO polymerization temperature, to meter in the comonomer and initiator together with any co-initiator or regulator used, with vigorous stirring. It is generallyimmaterial whether the maleic anhydride is initially placed in the reactor and the alkylvinyl ether and/or olefin are metered in or whether the alkylvinyl ether and/or olefin are initially placed in the reactor and the maleic anhyd-ride is added. It is, of course, equally possible to place only the solvent and protective colloid in the reactor and to feed in the monomers ( alkylvinyl ether and/or olefin and maleic anhydride) concurrently. The feed times for - monomer and initiator are generally between 1 and 10 hours, preferably between 2 and 5 hours. Alternatively, all components may be polymerized zO together in the reactor, but this gives rise to heat removal problems which make this method less suitable. The concentration of the monomers to be polymerized is generally from 20% to 80% w/w and preferably from 30% to 70% w/w. The polymer may be directly isolated from the polymer suspension in an evaporator such as a belt drier, paddle drier, spray drier, or fluidizing 25 drier. Precipitation and suspension polymerization techniques are particularly suitable for the manufacture of copolymers of maleic anhydride and alkylvinyl ethers of from 10 to 12 carbon atoms. If longer-chain alkyivinyl ethers and/or olefins are used, the stage may be reached where the resulting copolymer is soluble in the aforementioned solvents and the polymerization 30 must therefore be regarded as a solution polymerization.
Solution polymerization is carried out in solvents in which both the monomers and the resulting copolymer are soluble. All solvents are suitable for this purpose which fulfil this requirement and which do not react with 35 the monomers. Examples thereof are acetone, methylethyl ketone, diethyl ketone, methylisobutyl ketone, ethyl acetate, butyl acetate, tetrahydrofuran, and dioxane, of which tetrahydrofuran and dioxane are particularly suitahle for the manufacture of low molecular weight copolymers. As in the case of polymerization in substance or suspension or by precipitation, it is 40 advantageous to place the solvent and one of the monomeric components in the reactor and to rneter in the second component together with the initiator .: ~
. .
- ~ , ., -: - - , 2~a~2 ;FAltTlENGEsELLsc~AFr 8 o.z.ooso/42208 - and any co-initiator or regulator. The solvent and rnaleic anhydride may be placed in the polymerization reactor and, once the polymerization temperature has been reached, the alkylvinyl ether and/or olefin plus initiator and any co-initiator or regulator may be metered in. However, a more favor-s able technique comprises using the solvent and alkylvinyl ether and/or olefin as the initial mixture in the reactor and then feeding in the maleic anhydride plus initiator and any co-initiator or regulator at the desired polymerization temperature. This method produces less colored polymer solutions. The concentration of the total monomers is generally from 20% to ~0% w/w and preferably from 30% to 70~0 w/w. The solid copolymer can be isolated without any difficulty by evaporating the solvent~ Here again it is advantageous to select a solvent in which further conversion to the ammonium salt, alkali metal salt, or alkaline earth metal salt or a reaction with an alcohol and/or ammonia or an amine can take place.
1~
The first process step produces a copolymer of one or more alkylvinyl ethers and/or olefins and maleic anhydride or soma other ethylenically unsaturated carboxylic anhydride as defined above, and this copolymer is well suited for improving the water resistance of colloidal sealing com-20 pounds. Solutions of said copolymers are preferably used in plasticizers, forexample chloroparaffins. phthalates, and propoxylated cresols, or in organic solvents.
The anhydride groups contained in the copolymers may be partially or totally 25 converted to the ammonium salts, alkali metal salts, or alkaline earth metal salts, and if there is only partial conversion to the ammonium salts, alkali metal salts, or alkaline earth metal salts, the remainder of said groups may optionally be reacted with alcohols and/or amines to form esters and/or amides ancl/or ammonium salts. Alternatively, the said subsequent 30 conversion of the copolymers may be carried out in the reverse order, that is to say, the copolymers may first be solvolyzed with amines, ammonia and/or alcohols to Form the corresponding esters and~or amides and/or arnmonium salts and then conver~ed to, say, the alkali metal salts or alkaline earth metal salts.
3~;
The copolymers prepared by the aforementioned polymerization techniques are cooled to room ternperature and then solvolyzed, preferably in molten form at a temperature ranging from 80 to 180G and preferably from 90 to 150C. The solvolysis of the anhydride groups of the copolyrners consists, in its simpiest form, of hydrolysis followed by neutralization. It is particularly advantageous to operate in pressure-tight equipment and to add water - 2~ 2 B~SFA~TIErlGEsELLscHAFr 9 o.z.ooso/42208 - directly to the molten copolymer as it is produced in said equipment by polymerization in substance. In this way, the anhydride ~roups o~ the copolymer are converted to carboxyl groups, after which a base is added to neutralize at least 10% of the carboxyl gn~ups of the hydrolyzed copolymer.
s However, this hydrolysis and neutralization may be alternatively effected virtually simultaneously by the addition of a dilute aqueous base to the molten copolymer. The concentrations of water and neutralizing agent are adjusted so as to give dispersions or solutions having a solids content of from 10% to 60% w/w and preferably from 20% to ~5% w/w, which are marketed as such. From these, working solutions are prepared by dilution to a solids content of from 0.~% to 50% w/w.
Alternatively, the copolymers obtained by polymerization of monomers from groups (a) and (b) may be solvolyzed by the addition of primary and/or secondary amines. Such solvolysis is carried out using an amount ~f amine such that from 10% to 50% of the carboxyl groups obtained from the polymerized units of monomer (b) in the copolymer and resultiny ~rom total hydrolysis are amidated. After half-amide groups have formed in the copolymer, neutralization is carried out. This is carried to an extent such 20 that at least 10% of ~he carboxyl groups of the copolymer obtained by polymerization in substance are neutralized.
Another solvolyzing technique is to add an alcohol to the molten copolymer as obtained by polymerization in substance. The amount of alcohol used is 25 such as to e~Fect esterification of from 10% to 50% of the total carboxyl groups resulting from the polymerized dicarboxylic acid units contained in the copolymer. This is followed by neutralization of at least 10% of the total carboxyl groups formed from the anhydride group-containing copolymer.
30 Preferably, from 20% to 50% of the total carboxyl groups resulting from ~he polymerized dicarboxylic anhydride groups contained in the copolymer are amidated or esterified.
Suita~le neutralizing agents are, for example. ammonia, amines, alkali metal 35 bases and alkaline earth metal bases such as caustic soda, caustic potash, sodium bicarbonate, soda, potassium carbonate, magnesium hydroxide.
calcium hydroxide, barium hydroxide, and all of the amines which may be used for amidation oF the copolymer. Neutralization is preferably carried out by adding aqueous caustic soda solution t6 the copolymer. The neutralization 40 of the anhydride group-containing copolymers is carried at least to such an extent that water-dispersible copolymers are obtained. The degree of - , `' -. - ~ . , , ~ . .
.: ,. ~.
~ BAsFAKTIEHGEsELLscHAFT 10 ~ O S ~ ~ ~ 2 o z ooso/42208 neutralization required to achieve this end corresponds to at least 10% of the total carboxyl ~roups resulting from the anhydride groups. This degree of neutralization is also dependent on the ~hain length of the alkylvinyl ether and/or olefin used as component ~a). In order to obtain copolyrners which are readily dispersible or colloidosoluble in water, a copolymer from, say, a C10-alkylvinyl ether and maleic anhydride will be neutralized to an extent of at least 75%, whilst a copolymer from, say, a C20-alkylvinyl ether and maleic anhydride is readily dispersible in water at a degree of neutralization corresponding to 50% of the carboxyl groups resulting ~rom said copolymer In the case of a copolymer from a C~2-alkylvinyl ether and rnaleic anhydride, a degree of neutralization corresponding to only 20~o of the carboxyl groups resulting from the polymeri~ed units of rnaleic anhydride contained in said copolymer is sufficient to make the copolymer dispersible in water.
Arnidation can be effected using ammonia and primary and secondary amines. It is preferably carried out in the absence of water by reaction of the anhydride groups of the copolymer with ammonia or said amines.
Suitable primary and secondary amines may contain from 1 to 40 carbon 20 atoms and preferably from 3 to 30 carbon atoms. Examples of suitable amines are methylamine, ethylamine, n-propylamine, isopropylamine, n-butylamine, isobutylamine, hexylamine, cyclohexylamine, methylcyclohexyl-amine, 2-ethylhexylamine, n-octylamine, isotridecylamine, tallow fatty amine, stearylamine, oleylamine, dimethylamine, diethylamine, di-n-propylamine, di-25 isopropylamine, di-n-butylamine, di-isobutylamine, dihexylamine, di-cyclohexyl-amine, di-methylcyclohexylamine, di-2-ethylhexylamine, di-n-octylamine, di-isotridecylamine, di-tallow fatty amine, distearylamine, di-oleylamine, ethanol-amine, diethanolamine, n-propanolamine, di-n-propanolamine, and morpholine.
Morpholine is preferably used.
In order to effect partial esterification of the anhydride group-containing copolymer resulting from the polymerization, it is reacted with one or more alcohols. This esterification is again preferably carried out in the absence of water. Suitable alcohols may contain from 1 to 40 carbon atoms and 35 preferably from 3 to 30 carbon atoms. lJse may be made of primaly, secondary, and tertiary alcohols. Both saturated aliphatic alcohols and unsaturated alcohols, eg oleyl alcohol, can be employed. We prefer to use monohydric primary or secondary alcohols, for example methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, n-pentanol and isomers, n-hexanol and isomers, for example 2-ethylhexanol, n-oc~anol and isomers, nonanols, decanols, dodecanols, tridecanols, cyclohexanol, tallow fatty ' -:
- B~FAKTI~NGEs~LLscHAFT 11 2 0 g ~ ~ ~ 2 o.z.ooso/42208 alcohol, stearyl alcohol, and the commercially available oxosynthesis-produced alcohols or alcohol mi~<tures containing from 9 to 19 carbon atoms, for example Cg/1l-oxoalcohol, C13/15-oxoalcohoi, and Ziegler alcohols containing from 12 to 24 carbon a~oms and known as "aifols~ e s particularly prefer to use alcohols containing from 4 to 24 carbon atoms, for example n-butanol, isobutanol, amyl alcohol, 2-ethyihexanol, tridecanol, tallow fatty alcohol, stearyl alcohol, Cg/l1-oxoalcohol, C13/15~Ooxoalcohol, C12/l4sOalfols~ and C16/l8sOalfols The partial conversion of the anhydride groups to half-amide or half-ester groups is followed by the hydrolysis of the remaining anhydride groups of the copolymer. This hydrolysis of the remainder of the anhydride groups of the copolymer can take place concurrently with the partial neutralization yet to be carried out, by adding an aqueous base to the partially amidated or esterified copolymer still containing anhydride groups. The amounts of wa~er and base are adjusted such that the concentration of the copolymer dispersion or solution is preferably from 20% to 55% w/w. The pH of this ready-for-use hydrophobizing agent is in the range of 4 to 10.
20 The aqueous copolymer dispersions thus obtained are stable and have a good shelf iife. The copolymers of the invention are particularly suitable for improving the water resistance of colloidal sealing compounds, plasters, paints, and building adhesives which contain mineral building materials such as calcium carbonate and/or calcium silicate, magnesium silicate~ or 25 aluminum silicate.
The manufacture of the plasters, paints and sealing compounds is effected in conventional mixers. One method of incorporating the copolymers of the invention or their derivatives is to add them to said materials during manu-30 facture of the latter. Alternatively, they can be added to the dispersionbinder during or after polymerization. The concentration of the copolymers of the invention or their derivatives in said materials is from 0.01% to 10% w/w and preferably from 0.01% to 4% w/w, based on the formulation prior to drying.
Despite their hydrophobic nature, the solutions or dispersions of the invention show a good dispersing action on inorganic fillers such as calcium carbonate, aluminum silicate, calcium silicate, or magnesium silicate, and on finely divided pigments such as titanium dioxide and the various iron oxides.
~ They can partially or completely replace the conventionally used polymeric - dispersing agents based on polyacrylic acid or diisobutene/maleic anhydride -~ .: .
: - :
BAsiFA~ E~EseLLscHA~T 12 2 0 ~ ~ ~ 0 2 ~.z.coso/42208 - copolymers and can, like them, be combined with inorganic dispersing agents such as sodium hexametaphosphate or tetrapotassium pyrophosphate.
If it is desired to make use of this dispersing action during the manufacture of the paints or plasters, the copolymers of the invention will be added in s the form of an aqueous solution or dispersion before the pigments or fillers are stirred in.
The use of the copolymers of the invention considerably improves the wet abrasion resistance of coatings prepared from heavy emulsion paints. The 10 amount used ranges from 0.01% to 2% W/W and preferably from 0.02% to 1% w/w of copolymer, based on the total weight of the paint formula~ion.
The improved wet abrasion resistance makes it possible to manufacture coating materials which contain less binder but which satisfy or e~en exceed the standard requirements as regards resistance to washing and abrasion.
In the following Examples, the percentages are by weight unless otherwise stated. The molar mass of the copolymers was determined by gel permeation chromatography using tetrahydrofuran as solvent and using narrowly distributed fractions of polystyrene for calibration purposes.
(A) Preparation of the copolymers Example A1 25 1195 g of a C20-C24-olefin-1 mixture (Gulftene 20-24(~), Gulf Oil Chemical Company, U.S.A. ) were heated to a temperature of 1 90C with constant stirring under a weak stream of nitrogen in a stainless steel reactor equipped with a stirrer, feed means and means for working under nitrogen.
Once this temperature had been reached, 329 9 of maleic anhydride having 30 a temperature of 70C and, through a separate inlet, 16 9 of di-t-butyl per-oxide were added at a constant rate over a period of 4 hours. The - polymerization temperature was kept in the range of 185 to 1 90C. On completion of the addition of maleic anhydride and peroxide, the reaction mixture was heated at a temperature of 190C ~or 2 hours with constant 35 stirring, after which it was cooled to 90C. The viscous melt was poured on to a metal tray ancl allowed to solidify, after which it was crushed. The molar mass of the copolymer was 8,900 g/mole.
Example A2 4a 1,195 9 of Gulftene 20-24(~) were placed in the aforementioned reactor ., . -, , .
-.. -: ., :, ~
: . :- :
- E~ASFA~IEr~GEsELLscHAFT 13 2 0 6 ~ ~ 0 2 o.z.ooso/42208 - and heated to a temperature of 150C under a weak stream of nitrogen.
Once ~his temperature had been reached, 392 9 of maleic anhydride having a temperature of 70C and, through a separate inlet, 16 g o~ di-t-butyl per-oxide as a liquid were added at a constalnt rate over a period of 6 hours.
s The reaction mixture was then heated at 150C ~or a ~urther 2 hours and cooled to 90C. Over the next 30 minutes, the following separate streams were added: 320 g of 50% aqueous caustic soda solution and 5,026 g of water having a temperature of 90C. The reaction mixture was stirred for a further 4 hours at a temperature of from '30 to 95:: and then cooled. The 10 aqueous dispersion, which was slightly viscous at room temperature, had a solids content of 25.2%. The molar mass o~ the unhydrolyzed copolymer was 8,300 g/mole, and 50% molar of the total carboxyl groups ~ormed had been neutralized.
Examples A3 to A7 The substances listed in Table 1 below were polymerized and subsequently neutralized and dispersed in the manner described in Example A2.
20 Table 1 Ex. Oiefin or Alkyhlinyl Ether Maleic Di-t-butyl Neutralizing Water Type Amount AnhydridePeroxide Agent ( ) A3C20-C24-olefin-1 1,195 392 16 103~6 9 of 25% ammonia 6,100 A4octadecylvinyl ether 885 309 23.9 197 9 of 50% NaOH 3,785 A5C24-C28-olefin-1 1,470 392 18.6 323 9 of 50% NaOH 5,965 A6 Cl8-olefin-l 2,100 838.5 29.9 543 9 of 50% NaOH 9,446A7lcl8-olefin-l 756 392 14.2 324 9 of 50% NaOH 4,583 octadecyhlinyl ether 27?
30 The physical data are shown in Table 2 below:
Tab!e 2 _ (g/mole) Solids (C%o)ntent A38,300 20.8 35 A45,600 24.3 A59,800 25.0 A64,800 24.1 (B) Plasters bonded with synthetic resin A plaster bonded with a synthetic resin based on a 50% styrene acrylate .. ~ ' ~,` . .
.:
2 g~ 2 BASF AKTIENGESELLSCHAFT 14 o.z.ooso/42208 dispersion having an MFT of 22C and an average particle size of about 0.1 ~lm was prepared in a conventional mixer using the following recipe. The parts are by weight.
Parts Styrene acrylate dispersion (50% strength) 170 methylhydroxypropyl cellulose of high molecular weight (3% s~rength) 21 tetrapotassium pyrophosphate (50% strength in water) 5 defoamer based on silicone 4 preservative 2 white spirit 180/210C 20 mixture of isobutyl glutarate, isobutyl succinate, and isobutyl adipate 20 titanium dioxide (rutile) 32 calcium carbonate 40 ILm 267 calcium carbonate 130 llm 80 aluminum silicate - 79 granulated calcium carbonate 1,500 llm 300 1 ,000 Example B1 (Comparative Example) The plaster prepared as described under (B) above was trowel-spread into a metal ring Iying on a glass plate and having an internal diameter of 40 mm and a thickness of 5 mm. The plaster was allowed to dry for 1 day at 23C and 65% relative humidity, after which the ring was removed and 25 the plaster specimen was dried for 28 days at 23C and 65% relative humidity while supported on a gauze attached to a wooden frame.
The thus dried plaster specimen was then placed in water for ~4 hours at 23C and the amount of water absorbed was determined by weighing. The 30 result is given in Table 3 below.
Example B2 (Comparative Example) To 1,000 9 of the plaster described under (B) there were added 3 9 of a 35 65% aqueous paraffin wax emulsion with stirring.
The result of the test is given in Table 3 below.
Example B3 (Comparative E~cample) To ~,000 9 of the plaster described under (B) there were added 6 9 of a .
..
~" ' '... - . ' " :.
BJ~S~AI~TIENGESELLSC~IAFT 1~ 2 ~ fi ~ ~ 0 2 o.z.ooso~42208 65Yo aqueous paraffin wax emulsion with stirring.
The result of the lest is given in Table 3 below.
s Example B4 To 1,000 g of the plaster described under ~B) there were added 7.3 9 of a 25% aqueous formulation as described in F~ample A2 above, with stirring.
The result of the test is given in Table 3 below.
Example B5 To 1,000 9 of the plaster described under (B) there were added 8.8 9 of a ~s 20.8% aquenus formulation as described in Example A3 above, with stirring.
The result of the test is given in Table 3 below.
Example B6 To 1,000 9 of the plaster described under (B) there were added 17.6 g of a 20.8% aqueous formulation as described in Example A3 above, with stirring.
The result of the test is given in Table 3 below.
Example B7 To 1,000 9 of the plaster described under (B) there were added 7.5 y of a 24.3% aqueous formulation as described in Example A4 above, with stirring.
. 3~
The result of the test is given in Table 3 below.
Example B8 35 To 1,000 g of the plaster described under (B) there were added 7.3 9 of a 25% aqueous formulation as described in Example A5 a~ove, with stirring.
The result of the test is given in Table 3 below.
2~60~2 BASFAKTI~NGEsELLscHAFr 15 o.z.ooso/42208 Table 3 Water Absorption Data for ~ampies B1 to B8 .
Example B 1 B2 B3 B4 B5 B6 B7 B8 .
AcWitive Arnount added to plaster B (g) none wax emulsion (6~%) - 3 6 - - - - -A2 25.2% strength - - - 7.3 - - - -A3 20.8% strength -- -- - - 8.8 17.6 - --M 24.3% strength - - - - - - 7.5 h5 25.0% strength -- -- -- - -- -- - 7.3 10 Wathr absjorption aRer 97 8.8 10.7 2.9 3.92.9 3.5 2.8 A~ ranCe jof speclmen swollen hard (C) Sealing Compounds ts A sealing compound based on a 65% polyacrylate dispersion having a glass transition temperature of -40C was prepared in a conventional mixer to the following recipe. The parts are by weight.
Parts Polymer dispersion (65% strength) 316 Caustic soda solution (10% strength) 3 Plasticizer (propoxilated cresol containing 20 PO units) 70 Titanium dioxide (rutile) 50 Sodium salt of a polyacrylic acid (20% strength) zs Calcium carbonate 560 1 ,000 Example C1 (Comparative Example) The sealing compound prepared as described under ~C) was pressed into a 30 groove having a width of 10 mm, a depth of 10 mm and a length of 100 mm.
After drying for 15 minutes at 23C and 65% relative humidity, the resistance of the compound to premature rainfall was determined. This was done by placing the compound at an angle of 45 and spraying it with water from a shower nozie located 35 cm away. The resistance to prema-35 ture rainfall is taken to be the time which elapses be~ore the off-water becomes cloudy in appearanceJ ie before ~he sealing compound begins to wash out.
The result of the test is given in Table 4 below.
.
': ' ~`
.. ' ' ~
.
-- ~3AsFAKTlENGEsELLscHAFT 11 2 0 6 0 ~ Q 2 o.z.ooso/42208 Example C2 To 1,500 g of the sealing compound prepared as described under (C) there were added 20 9 of the mixture of C2~-C24-olefin/maleic anhydride wax, ' 5 water, and NaOH prepared in Example A2 above.
The result of the test is given in Table 4 below~
Example C3 60 9 of the C20-C24-olefin/maleic anhydride copolymer described in Example 1 were dissolved in the 70~9 of plasticizer listed in the above recipe. This mixture (1 30~g) was then used when preparing the sealing compound to said recipe (C) instead of the 70~ of plasticizer.
The result of the test is given in Table 4 below.
Example C4 (Comparative Example) 20 1 9 of ~-aminopropyltriethoxysilane was worked into 1,000 g of the sealing compound prepared as described under (C).
The result of the test is given in Table 4 below.
zs Table 4 Resistance oF Sea!ing Compounds of Examples C1 to C4 to Premature Rainfall Examples Additive Amount added to 1,000 g of sealing compound none -- - -Al -- -- 60 ~--aminopropyltriethoxysilane . _ .
Resistance to premature rainfall (s) 0 240 180 0 ~s (D) Heavy Interior Pain~ (PVK approx. 83%) An emulsion paint based on a 50% acrylate/styrene dispersion (MFT app~ox.
22C, average particle size approx. 0.1 llm) was prepared using a dissolver ~!
40 made up of the cornponents in the recipe below (Comparative Example D1~.
The parts are by weight.
' , ' ' ' . ':
; ' ' ' ' -- BAS~ AKTIEN~ESELLSCHA~T lS 2 0 6 ~ ~ 0 2 o z oogo~42208 -Parts Water 91 Sodium hexametaphosphate, 10% strength 18.25 Ammonium polyacrylate, 30% strength 2.5 s Ammonia, 25% strength 2.5 Preservative 3 Methylhydroxyethyl cellulos~ (high mol. wt.), 2% strength 1~0 White spirit 180-210C 12 Trimethylpentanediol monoisobutyrate 12 Titanium dioxide (rutile) 71 Aluminum silicate 12 Calcium carbonate < 21lm 83 Calcium carbonate 5,um 417 Fatty alcohol ethoxylate, 20% strength 6 Defoamer 0.75 Water 28.3 Acrylate/styrene dispersion, 50% strength 90.7 1 ,000.00 2Q Examples D2 to D8 were carried out in a similar manner. In the Compara-tive Example D2 there were added 40 parts by weight of calcium stearate, and in Examples D3 to D8 the ammonia polyacrylate was replaced by copolymer dispersions of the invention as indicated in Table 5 below.
2s The paints thus obtained were applied to Leneta foil, and the coatings were subjected to an abrasion test as specified in DIN 53,778, Part 2. The results of the abrasion tests are listed in Table 5 below.
Table 5 30 Example Additive (Parts by weight)Abrasion Cycles Count D1 5Comp. E~el2.5 parts of ammorlium polyacrylate 30/O 900 D2 ~Comp. Ex.~ ditto plus 40 parts of calcium stearate <200 D3 3.0 parts of copolymer A1 25.2% 1,600 D4 6.0 parts of copolymer A1 25.2% 2,100 3sD5 6.2 parts of copolymer A6 24.1% 2,600 D6 6.2 parts of copolymer A4 24.3% 2,100 D7 6.0 parts of copolymer A5 25.0% 1,400 D8 6.0 parts of copolymer A7 24.9% 2,200 The use of the copolymers of the invention considerably improved the abrasion resistance.
, -: , ' ~. ~ . .
'- , '~ ' - :: .
. ~ - .
~. . , ; , ' ' - : ,
We have also founcl that copolymers in which the anhydride groups have been solvolyzed following polymeri7ation are very suitable for rendering seal-ing compounds, plasters, paints, and building adhesives hydrophobic.
40 We have further found that copolymers in which the anhydride groups have been solvolyzed and at least 10% of the resulting carboxyl groups have been -- , , ~ :
~ ' '. . . ~
-~ .~ .. - . , ~
- 2 0 ~ 2 E~ASFAKTIE~GESE~LScHAFT 3 o.z.ooso/42208 - neutralized with a base are particularly well suited for use as hydrophobizing agents.
The invention also relates to colloidal sealin~ compounds, plasters, paints, s and building adhesives containing the aforementioned copolymers.
Said copolyrners are described in, say, DE-OS 3,733,172. They are prepared by copolymerizing monomer from group (a) with monomer from group (b) and optionally solvolyzing the anhydride !3roups of the resulting copolymer 10 and partially neutralizing the carboxyl groups produced by said solvolysis.
The monomers in group (a) are C10-C40-al~ylvinyl ethers or mixtures of said alkylvinyl ethers with C,3-C40-mono-olefins. Examples of said alkylvinyl ethers are n-decylvinyl ether, dodecylvinyl ether, isododecylvinyl ether, n-tri-15 decylvinyl ether, isotridecylvinyl ether, n-tetradecylvinyl ether, n-hexadecyl-vinyl ether, n-oc~adecylvinyl ether, n-eicosylvinyl ether, n-docosylvinyl ether,n-tetracosylvinyl ether, n-hexacosylvinyl ether, n-octacosylvinyl ether, oleyl-vinyl etherJ and mixtures of the above alkylvinyl ethers.
20 Suitable mono-olefins having from 13 to 40 carbon atoms are, for example, tetradecene-1, hexadecene-1, octadecene-1, C20-olefin-1, C22-olefin-1, C24-olefin-1, C2~-C24-olefin-l, C24-C28-olefin-~, C30-olefin-l, C35-olefin-~, and C40-olefin-1. These olefins or olefin mixtures are commercial products. As a result of the processes involved in their manufacture, the olefins may 25 contain small amounts of inert hydrocarbons, for example up to about 5% w/w. The olefins are usually used in commercial quality and do not require additional purification. The preferred olefins are C~6-C30-olefins.
When employed as monomers of group (a) for copolymerization, the said olefins are used either alone or in admixture with the aforementioned alkyl-vinyl ethers. Alternatively, these alkylvinyl ethers may be used alone as monomers of group (a). The proportion of alkylvinyl ether and olefin may be from 0% to 100% w/w in each case, and is preferably from ~0% to 90% w/w.
35 The components (b~ of the copolymers are monoethylenically unsaturated C4-C8-dicarboxylic anhydrides, for example maleic anhydride, itaconic anhydride, mesaconic anhydride, citraconic anhydride, methylenemalonic anhydride, and mixtures thereof. Of these anhydrides, we prefer the C4-C6-dioic anhydrides, especially maleic anhydride.
The copolymers contain from 30% to 50% molar of monomer units from c~
., --- - : .. - . .
: ' ~
. - .
.~:
2 ~ 9 2 ~ASFA~ ENGESELLSC~A~T 4 o.z.ooso/42208 group (a) and from 50% to 70% molar of said dicarboxylic anhydride units, and their gram-rnolecular Yveight is generally from 500 to 20,000, preferably from 800 to tO,000, g/mole. They are preferably obtained by polymerizing monomers from groups (a) and (b) in a molar ratio of from 1:1 to 1:2. It is s particularly preferred to polymerize the rnonomers (a) and (b) in a molar ratio of approximately 1:1 or to use an excess of monomer from group (b) of not more than 10% w/w.
The copolymers may be prepared by any conventional polymerization process, for example by polymerization in substance, in suspension, or in solution, or by precipitation. Copolymerization is preferably carried out in thepresence of ~ree-radical compounds. The amount of such compounds required is generally from 0% to 10% w/w, and preferably from 0.2% to 5%
w/w, based on the weight of monomers involved in the copolymerization. All of the aforementioned polymerization processes are carried out with the exclusion of oxygen, preferably under a blanket of nitrogen. All of said polymerization processes are carried out in conventional apparatus such as autoclaves and boilers equipped with, say, anchor screws, blade mixers, impeller mixers, or multistage countercurrent pulse mixers. We particularly 20 prefer to polymerize the monomers from groups (a) and (b) in substance.
This is carried out at a temperature of from 80 to 300C, preferably frGm 120 to 200C, the lower limit of the selected range being at least 20C
above the glass transition temperature of the polymer formed. The polymerization conditions are adjusted according to the desired molecular 25 weight of the target copolymer. Polymerization at high temperatures results in copolymers of low molecular weight, whilst low-temperature polymeriza-tion yields polymers of high molecular weight. The amount of polymerization initiator also has an influence on the molecular weight. In general, an amount of from 0% to 10% w/w of free-radical polymerization initiators is 30 required, based on the total weight of monomer used for polymerization.
Larger quantities of initiator lead to copolymers of lower molecular weight.
The monomers of groups (a) and (b) may be polymerized in the absence of polymerization initiators, if desired, provided the temperature is above 200C.
That is to say, the use of initiators is not obligatory, since said monomers 35 (a) and (b) undergo lFree- radical polymerization at temperatures above 200C in the presence or absence of initiators.
Examples of suitable polymerization initiators are acetylcyclohexane sulfonyl-peroxide, diacetyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, di-2-40 ethylhexyl peroxydicarbonate, t-butyl peroxyneodecanoate, 2,2'-azo-bis(4-methoxy-2,4-dimethylvaleronitrile), t-butyl peroxypivalate, t-butyl peroxy-2-- . . . . .
- -- ~ ~ :- ~ . ' , ' ' BASFAKTlEr GESELLSCHAFr 5 2 ~ ~ O ~ 0 2 o z.ooso/42208 ethylhexanoate, t-butyl peroxymaleate, 2,2'-azo-bis(isobutyronitrile), bis(t-butyl-peroxy)cyclohexane, t-butyl peroxyisopropylcarbonate, t-butyl peracetate, di-t-butyl peroxide, di-t-amyl peroxide, cum0ne hydroperoxide, and t-butyl hydroperoxide. The said initiators may be used alone or in admixture with each other. When the monomers are polymerized in substance, the initiator or mixture of initiators is fed to the polymerization reactor preferably as a separate stream or dissolved or dispersed in the monomer from group (a).
Redox co-initiators may, of course, be used in the copolymerization process, examples being benzoin, dimethylaniline, ascorbic acid, and organically soluble complexes of heavy metals such as copper, cobalt, iron, manganese, nickel, and chromium. The use of redox co-initiator permits the use of lower temperatures for the polymerization. The normally used amount of redox co-initiator is ~rom about 0.1 to ~,000 ppm, preferably from 0.1 to 1,000 ppm, based on total monomers. If the poiymerization of the monomer mixture is to be commenced at the lower limit of the temperature range to be used for polymerization and is to be completed at a higher ternperature, it will be advantageous to use at least two different initiators which decompose at different temperatures, so that a sufficient concentration of free radicals willbe present at each temperature level.
When it is desired to manufacture polymers of low molecular weight, it will often be expedient to carry out the copolymerization in the presence of a chain stoppage regulator. Conventional regulators may be used for this purpose, for example C1-C4-aldehydes, formic acid, and compounds con-Z5 taining organic SH groups, such as 2-mercapto-ethanol, 2-mercaptopropanol, mercapto-acetic acid, mercaptopropionic acid, t-butyl mercaptan, n-dodecyl mercaptan, and t-dodecyl mercaptan. These polymerization regulators are generally used in a concentration of from 0.1% to 10% w/w, based on the total monomers.
The copolymerization may be carried out batchwise or continuously. For example, one or more alkylvinyl ethers or one or more olefins or a mixture of one or more alkylvinyl ethers with at least one olefin may be placed in the reactor and heated to the desired polymerization temperature with 35 stirring. Once the ~emperature of the monomer(s~ in the reactor has reached the desired value for polymerization, the ethylenically unsaturated dicarboxylicanhydride is added. If an initiator is used, this is added to the reaction mixture preferably as a separate stream or dissolved in one of the mono-mers of group la) to take part in the polymeri7ation. The po~ymerization 40 regulator, if used, is added to the polymerization mixture either as a separate stream or also dissolved in one of the monomers of group (a). The . .: ~ . ~
.
.
~A5FAKTIENGEsELLscHAFT 2 3 ~ 2 o.z.ooso/42208 ethylenically unsaturated carboxylic anhydride, in particular maleic anhydride, is preferably added to the reaction mixtura as molten substanGe. The temperature of the molten maleic anhydride may be from 60 to 1 00C, preferably from 70 to 90C.
s The monomers of groups (a) and (b) rnay, of course, be processed by methods such as are used in precipitation or suspension polymerization.
In precipitation polymerization, use is made of a solvent in which the monomers, eg vinyl ether and/or olefin and maleic anhydride, are soluble, but in which the resultin~ polymer is insoluble, with the result that the latterprecipitates. Examples of such solvents are aromatic hydrocarbons such as benzene, toluene, o-xylene, m-xylene, p-xylene, and commercial xylene mixtures, ethylben7ene, cumene, and halohydrocarbons such as methylene chloride, 1,1- and 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloro-ethylene, 1,1,2-trichloroethane, perchloroethylene, 1,2-dichloropropane, butyl chloride, 1,1,2-trichloro-1,2,2-trifluoroethane, 1,~,1,2-tetrachloro-2,2-difluoro-ethane, 1,1,2,2-tetrachloro-1,2-difluoroethane, and ethers such as diethyl ether, dipropyl ether, dibutyl ether, methyl-t-butyl ether, diethyleneglycoldi-20 methyl ether, and mixtures thereof.
In suspension polymerization, solvents are used in which all or at least oneof the monomers and the resulting polymer are insoluble. Suitable solvents for this purpose are straight-chain and branched-chain aliphatic and 25 cycloaliphatic hydrocarbons. Examples of preferred solvents are pentane, hexane, heptane, octane, iso-octane, cyclohexane, methylcyclohexane, ethylcyclohexane, dimethylcyclohexane, diethylcyclohexane, and mixtures thereof.
30 When polymerization is carried out by the precipitation method, it is advantageous, particularly if the concentrations of monomer or copolymer are higher than 40% w/w, to operate in the presence of a protective colloid in order to avoid aggregation. In the case of suspension polymeri~ation it is obligatory to operate in the presence of a protective colloid, in order to 35 prevent undesirable agglomeration of the resulting polymer.
Suitable protective colloids are polymeric substances which are readily soluble in solvents and are inert to the monomers. Examples of suitable substances are copolymers of maleic anhydride with C~2-C30-alkylvinyl ethers and/or olefins of from 8 to 20 carbon atoms and preferably their monoesters with C~0-C20-alcohols, or monoamides or diamides with C10-C20-.
BASFAKTIENGESELLSCHAFT 7 2 ~ 2 o.z.ooso/42208 alkylamines, and poly(C,-C20-alkyl)vinyl ethers such as polymethylvinyl ether, polyethylvinyl ether, poly-isobutylvinyl ether, and polyoctadecylvinyl ether. The amount of protective colloid used is normally between 0.05% to 4% w/w and is preferably between 0.1% and 2% w/w ~based on totai monomers), and s it is often an advantage to use a combination of two or more protective colloids.
To carry out the polymerization, it is advantageous to place the solvent, protective colloid and one of the monomers in a reactor and, at the desired lO polymerization temperature, to meter in the comonomer and initiator together with any co-initiator or regulator used, with vigorous stirring. It is generallyimmaterial whether the maleic anhydride is initially placed in the reactor and the alkylvinyl ether and/or olefin are metered in or whether the alkylvinyl ether and/or olefin are initially placed in the reactor and the maleic anhyd-ride is added. It is, of course, equally possible to place only the solvent and protective colloid in the reactor and to feed in the monomers ( alkylvinyl ether and/or olefin and maleic anhydride) concurrently. The feed times for - monomer and initiator are generally between 1 and 10 hours, preferably between 2 and 5 hours. Alternatively, all components may be polymerized zO together in the reactor, but this gives rise to heat removal problems which make this method less suitable. The concentration of the monomers to be polymerized is generally from 20% to 80% w/w and preferably from 30% to 70% w/w. The polymer may be directly isolated from the polymer suspension in an evaporator such as a belt drier, paddle drier, spray drier, or fluidizing 25 drier. Precipitation and suspension polymerization techniques are particularly suitable for the manufacture of copolymers of maleic anhydride and alkylvinyl ethers of from 10 to 12 carbon atoms. If longer-chain alkyivinyl ethers and/or olefins are used, the stage may be reached where the resulting copolymer is soluble in the aforementioned solvents and the polymerization 30 must therefore be regarded as a solution polymerization.
Solution polymerization is carried out in solvents in which both the monomers and the resulting copolymer are soluble. All solvents are suitable for this purpose which fulfil this requirement and which do not react with 35 the monomers. Examples thereof are acetone, methylethyl ketone, diethyl ketone, methylisobutyl ketone, ethyl acetate, butyl acetate, tetrahydrofuran, and dioxane, of which tetrahydrofuran and dioxane are particularly suitahle for the manufacture of low molecular weight copolymers. As in the case of polymerization in substance or suspension or by precipitation, it is 40 advantageous to place the solvent and one of the monomeric components in the reactor and to rneter in the second component together with the initiator .: ~
. .
- ~ , ., -: - - , 2~a~2 ;FAltTlENGEsELLsc~AFr 8 o.z.ooso/42208 - and any co-initiator or regulator. The solvent and rnaleic anhydride may be placed in the polymerization reactor and, once the polymerization temperature has been reached, the alkylvinyl ether and/or olefin plus initiator and any co-initiator or regulator may be metered in. However, a more favor-s able technique comprises using the solvent and alkylvinyl ether and/or olefin as the initial mixture in the reactor and then feeding in the maleic anhydride plus initiator and any co-initiator or regulator at the desired polymerization temperature. This method produces less colored polymer solutions. The concentration of the total monomers is generally from 20% to ~0% w/w and preferably from 30% to 70~0 w/w. The solid copolymer can be isolated without any difficulty by evaporating the solvent~ Here again it is advantageous to select a solvent in which further conversion to the ammonium salt, alkali metal salt, or alkaline earth metal salt or a reaction with an alcohol and/or ammonia or an amine can take place.
1~
The first process step produces a copolymer of one or more alkylvinyl ethers and/or olefins and maleic anhydride or soma other ethylenically unsaturated carboxylic anhydride as defined above, and this copolymer is well suited for improving the water resistance of colloidal sealing com-20 pounds. Solutions of said copolymers are preferably used in plasticizers, forexample chloroparaffins. phthalates, and propoxylated cresols, or in organic solvents.
The anhydride groups contained in the copolymers may be partially or totally 25 converted to the ammonium salts, alkali metal salts, or alkaline earth metal salts, and if there is only partial conversion to the ammonium salts, alkali metal salts, or alkaline earth metal salts, the remainder of said groups may optionally be reacted with alcohols and/or amines to form esters and/or amides ancl/or ammonium salts. Alternatively, the said subsequent 30 conversion of the copolymers may be carried out in the reverse order, that is to say, the copolymers may first be solvolyzed with amines, ammonia and/or alcohols to Form the corresponding esters and~or amides and/or arnmonium salts and then conver~ed to, say, the alkali metal salts or alkaline earth metal salts.
3~;
The copolymers prepared by the aforementioned polymerization techniques are cooled to room ternperature and then solvolyzed, preferably in molten form at a temperature ranging from 80 to 180G and preferably from 90 to 150C. The solvolysis of the anhydride groups of the copolyrners consists, in its simpiest form, of hydrolysis followed by neutralization. It is particularly advantageous to operate in pressure-tight equipment and to add water - 2~ 2 B~SFA~TIErlGEsELLscHAFr 9 o.z.ooso/42208 - directly to the molten copolymer as it is produced in said equipment by polymerization in substance. In this way, the anhydride ~roups o~ the copolymer are converted to carboxyl groups, after which a base is added to neutralize at least 10% of the carboxyl gn~ups of the hydrolyzed copolymer.
s However, this hydrolysis and neutralization may be alternatively effected virtually simultaneously by the addition of a dilute aqueous base to the molten copolymer. The concentrations of water and neutralizing agent are adjusted so as to give dispersions or solutions having a solids content of from 10% to 60% w/w and preferably from 20% to ~5% w/w, which are marketed as such. From these, working solutions are prepared by dilution to a solids content of from 0.~% to 50% w/w.
Alternatively, the copolymers obtained by polymerization of monomers from groups (a) and (b) may be solvolyzed by the addition of primary and/or secondary amines. Such solvolysis is carried out using an amount ~f amine such that from 10% to 50% of the carboxyl groups obtained from the polymerized units of monomer (b) in the copolymer and resultiny ~rom total hydrolysis are amidated. After half-amide groups have formed in the copolymer, neutralization is carried out. This is carried to an extent such 20 that at least 10% of ~he carboxyl groups of the copolymer obtained by polymerization in substance are neutralized.
Another solvolyzing technique is to add an alcohol to the molten copolymer as obtained by polymerization in substance. The amount of alcohol used is 25 such as to e~Fect esterification of from 10% to 50% of the total carboxyl groups resulting from the polymerized dicarboxylic acid units contained in the copolymer. This is followed by neutralization of at least 10% of the total carboxyl groups formed from the anhydride group-containing copolymer.
30 Preferably, from 20% to 50% of the total carboxyl groups resulting from ~he polymerized dicarboxylic anhydride groups contained in the copolymer are amidated or esterified.
Suita~le neutralizing agents are, for example. ammonia, amines, alkali metal 35 bases and alkaline earth metal bases such as caustic soda, caustic potash, sodium bicarbonate, soda, potassium carbonate, magnesium hydroxide.
calcium hydroxide, barium hydroxide, and all of the amines which may be used for amidation oF the copolymer. Neutralization is preferably carried out by adding aqueous caustic soda solution t6 the copolymer. The neutralization 40 of the anhydride group-containing copolymers is carried at least to such an extent that water-dispersible copolymers are obtained. The degree of - , `' -. - ~ . , , ~ . .
.: ,. ~.
~ BAsFAKTIEHGEsELLscHAFT 10 ~ O S ~ ~ ~ 2 o z ooso/42208 neutralization required to achieve this end corresponds to at least 10% of the total carboxyl ~roups resulting from the anhydride groups. This degree of neutralization is also dependent on the ~hain length of the alkylvinyl ether and/or olefin used as component ~a). In order to obtain copolyrners which are readily dispersible or colloidosoluble in water, a copolymer from, say, a C10-alkylvinyl ether and maleic anhydride will be neutralized to an extent of at least 75%, whilst a copolymer from, say, a C20-alkylvinyl ether and maleic anhydride is readily dispersible in water at a degree of neutralization corresponding to 50% of the carboxyl groups resulting ~rom said copolymer In the case of a copolymer from a C~2-alkylvinyl ether and rnaleic anhydride, a degree of neutralization corresponding to only 20~o of the carboxyl groups resulting from the polymeri~ed units of rnaleic anhydride contained in said copolymer is sufficient to make the copolymer dispersible in water.
Arnidation can be effected using ammonia and primary and secondary amines. It is preferably carried out in the absence of water by reaction of the anhydride groups of the copolymer with ammonia or said amines.
Suitable primary and secondary amines may contain from 1 to 40 carbon 20 atoms and preferably from 3 to 30 carbon atoms. Examples of suitable amines are methylamine, ethylamine, n-propylamine, isopropylamine, n-butylamine, isobutylamine, hexylamine, cyclohexylamine, methylcyclohexyl-amine, 2-ethylhexylamine, n-octylamine, isotridecylamine, tallow fatty amine, stearylamine, oleylamine, dimethylamine, diethylamine, di-n-propylamine, di-25 isopropylamine, di-n-butylamine, di-isobutylamine, dihexylamine, di-cyclohexyl-amine, di-methylcyclohexylamine, di-2-ethylhexylamine, di-n-octylamine, di-isotridecylamine, di-tallow fatty amine, distearylamine, di-oleylamine, ethanol-amine, diethanolamine, n-propanolamine, di-n-propanolamine, and morpholine.
Morpholine is preferably used.
In order to effect partial esterification of the anhydride group-containing copolymer resulting from the polymerization, it is reacted with one or more alcohols. This esterification is again preferably carried out in the absence of water. Suitable alcohols may contain from 1 to 40 carbon atoms and 35 preferably from 3 to 30 carbon atoms. lJse may be made of primaly, secondary, and tertiary alcohols. Both saturated aliphatic alcohols and unsaturated alcohols, eg oleyl alcohol, can be employed. We prefer to use monohydric primary or secondary alcohols, for example methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, n-pentanol and isomers, n-hexanol and isomers, for example 2-ethylhexanol, n-oc~anol and isomers, nonanols, decanols, dodecanols, tridecanols, cyclohexanol, tallow fatty ' -:
- B~FAKTI~NGEs~LLscHAFT 11 2 0 g ~ ~ ~ 2 o.z.ooso/42208 alcohol, stearyl alcohol, and the commercially available oxosynthesis-produced alcohols or alcohol mi~<tures containing from 9 to 19 carbon atoms, for example Cg/1l-oxoalcohol, C13/15-oxoalcohoi, and Ziegler alcohols containing from 12 to 24 carbon a~oms and known as "aifols~ e s particularly prefer to use alcohols containing from 4 to 24 carbon atoms, for example n-butanol, isobutanol, amyl alcohol, 2-ethyihexanol, tridecanol, tallow fatty alcohol, stearyl alcohol, Cg/l1-oxoalcohol, C13/15~Ooxoalcohol, C12/l4sOalfols~ and C16/l8sOalfols The partial conversion of the anhydride groups to half-amide or half-ester groups is followed by the hydrolysis of the remaining anhydride groups of the copolymer. This hydrolysis of the remainder of the anhydride groups of the copolymer can take place concurrently with the partial neutralization yet to be carried out, by adding an aqueous base to the partially amidated or esterified copolymer still containing anhydride groups. The amounts of wa~er and base are adjusted such that the concentration of the copolymer dispersion or solution is preferably from 20% to 55% w/w. The pH of this ready-for-use hydrophobizing agent is in the range of 4 to 10.
20 The aqueous copolymer dispersions thus obtained are stable and have a good shelf iife. The copolymers of the invention are particularly suitable for improving the water resistance of colloidal sealing compounds, plasters, paints, and building adhesives which contain mineral building materials such as calcium carbonate and/or calcium silicate, magnesium silicate~ or 25 aluminum silicate.
The manufacture of the plasters, paints and sealing compounds is effected in conventional mixers. One method of incorporating the copolymers of the invention or their derivatives is to add them to said materials during manu-30 facture of the latter. Alternatively, they can be added to the dispersionbinder during or after polymerization. The concentration of the copolymers of the invention or their derivatives in said materials is from 0.01% to 10% w/w and preferably from 0.01% to 4% w/w, based on the formulation prior to drying.
Despite their hydrophobic nature, the solutions or dispersions of the invention show a good dispersing action on inorganic fillers such as calcium carbonate, aluminum silicate, calcium silicate, or magnesium silicate, and on finely divided pigments such as titanium dioxide and the various iron oxides.
~ They can partially or completely replace the conventionally used polymeric - dispersing agents based on polyacrylic acid or diisobutene/maleic anhydride -~ .: .
: - :
BAsiFA~ E~EseLLscHA~T 12 2 0 ~ ~ ~ 0 2 ~.z.coso/42208 - copolymers and can, like them, be combined with inorganic dispersing agents such as sodium hexametaphosphate or tetrapotassium pyrophosphate.
If it is desired to make use of this dispersing action during the manufacture of the paints or plasters, the copolymers of the invention will be added in s the form of an aqueous solution or dispersion before the pigments or fillers are stirred in.
The use of the copolymers of the invention considerably improves the wet abrasion resistance of coatings prepared from heavy emulsion paints. The 10 amount used ranges from 0.01% to 2% W/W and preferably from 0.02% to 1% w/w of copolymer, based on the total weight of the paint formula~ion.
The improved wet abrasion resistance makes it possible to manufacture coating materials which contain less binder but which satisfy or e~en exceed the standard requirements as regards resistance to washing and abrasion.
In the following Examples, the percentages are by weight unless otherwise stated. The molar mass of the copolymers was determined by gel permeation chromatography using tetrahydrofuran as solvent and using narrowly distributed fractions of polystyrene for calibration purposes.
(A) Preparation of the copolymers Example A1 25 1195 g of a C20-C24-olefin-1 mixture (Gulftene 20-24(~), Gulf Oil Chemical Company, U.S.A. ) were heated to a temperature of 1 90C with constant stirring under a weak stream of nitrogen in a stainless steel reactor equipped with a stirrer, feed means and means for working under nitrogen.
Once this temperature had been reached, 329 9 of maleic anhydride having 30 a temperature of 70C and, through a separate inlet, 16 9 of di-t-butyl per-oxide were added at a constant rate over a period of 4 hours. The - polymerization temperature was kept in the range of 185 to 1 90C. On completion of the addition of maleic anhydride and peroxide, the reaction mixture was heated at a temperature of 190C ~or 2 hours with constant 35 stirring, after which it was cooled to 90C. The viscous melt was poured on to a metal tray ancl allowed to solidify, after which it was crushed. The molar mass of the copolymer was 8,900 g/mole.
Example A2 4a 1,195 9 of Gulftene 20-24(~) were placed in the aforementioned reactor ., . -, , .
-.. -: ., :, ~
: . :- :
- E~ASFA~IEr~GEsELLscHAFT 13 2 0 6 ~ ~ 0 2 o.z.ooso/42208 - and heated to a temperature of 150C under a weak stream of nitrogen.
Once ~his temperature had been reached, 392 9 of maleic anhydride having a temperature of 70C and, through a separate inlet, 16 g o~ di-t-butyl per-oxide as a liquid were added at a constalnt rate over a period of 6 hours.
s The reaction mixture was then heated at 150C ~or a ~urther 2 hours and cooled to 90C. Over the next 30 minutes, the following separate streams were added: 320 g of 50% aqueous caustic soda solution and 5,026 g of water having a temperature of 90C. The reaction mixture was stirred for a further 4 hours at a temperature of from '30 to 95:: and then cooled. The 10 aqueous dispersion, which was slightly viscous at room temperature, had a solids content of 25.2%. The molar mass o~ the unhydrolyzed copolymer was 8,300 g/mole, and 50% molar of the total carboxyl groups ~ormed had been neutralized.
Examples A3 to A7 The substances listed in Table 1 below were polymerized and subsequently neutralized and dispersed in the manner described in Example A2.
20 Table 1 Ex. Oiefin or Alkyhlinyl Ether Maleic Di-t-butyl Neutralizing Water Type Amount AnhydridePeroxide Agent ( ) A3C20-C24-olefin-1 1,195 392 16 103~6 9 of 25% ammonia 6,100 A4octadecylvinyl ether 885 309 23.9 197 9 of 50% NaOH 3,785 A5C24-C28-olefin-1 1,470 392 18.6 323 9 of 50% NaOH 5,965 A6 Cl8-olefin-l 2,100 838.5 29.9 543 9 of 50% NaOH 9,446A7lcl8-olefin-l 756 392 14.2 324 9 of 50% NaOH 4,583 octadecyhlinyl ether 27?
30 The physical data are shown in Table 2 below:
Tab!e 2 _ (g/mole) Solids (C%o)ntent A38,300 20.8 35 A45,600 24.3 A59,800 25.0 A64,800 24.1 (B) Plasters bonded with synthetic resin A plaster bonded with a synthetic resin based on a 50% styrene acrylate .. ~ ' ~,` . .
.:
2 g~ 2 BASF AKTIENGESELLSCHAFT 14 o.z.ooso/42208 dispersion having an MFT of 22C and an average particle size of about 0.1 ~lm was prepared in a conventional mixer using the following recipe. The parts are by weight.
Parts Styrene acrylate dispersion (50% strength) 170 methylhydroxypropyl cellulose of high molecular weight (3% s~rength) 21 tetrapotassium pyrophosphate (50% strength in water) 5 defoamer based on silicone 4 preservative 2 white spirit 180/210C 20 mixture of isobutyl glutarate, isobutyl succinate, and isobutyl adipate 20 titanium dioxide (rutile) 32 calcium carbonate 40 ILm 267 calcium carbonate 130 llm 80 aluminum silicate - 79 granulated calcium carbonate 1,500 llm 300 1 ,000 Example B1 (Comparative Example) The plaster prepared as described under (B) above was trowel-spread into a metal ring Iying on a glass plate and having an internal diameter of 40 mm and a thickness of 5 mm. The plaster was allowed to dry for 1 day at 23C and 65% relative humidity, after which the ring was removed and 25 the plaster specimen was dried for 28 days at 23C and 65% relative humidity while supported on a gauze attached to a wooden frame.
The thus dried plaster specimen was then placed in water for ~4 hours at 23C and the amount of water absorbed was determined by weighing. The 30 result is given in Table 3 below.
Example B2 (Comparative Example) To 1,000 9 of the plaster described under (B) there were added 3 9 of a 35 65% aqueous paraffin wax emulsion with stirring.
The result of the test is given in Table 3 below.
Example B3 (Comparative E~cample) To ~,000 9 of the plaster described under (B) there were added 6 9 of a .
..
~" ' '... - . ' " :.
BJ~S~AI~TIENGESELLSC~IAFT 1~ 2 ~ fi ~ ~ 0 2 o.z.ooso~42208 65Yo aqueous paraffin wax emulsion with stirring.
The result of the lest is given in Table 3 below.
s Example B4 To 1,000 g of the plaster described under ~B) there were added 7.3 9 of a 25% aqueous formulation as described in F~ample A2 above, with stirring.
The result of the test is given in Table 3 below.
Example B5 To 1,000 9 of the plaster described under (B) there were added 8.8 9 of a ~s 20.8% aquenus formulation as described in Example A3 above, with stirring.
The result of the test is given in Table 3 below.
Example B6 To 1,000 9 of the plaster described under (B) there were added 17.6 g of a 20.8% aqueous formulation as described in Example A3 above, with stirring.
The result of the test is given in Table 3 below.
Example B7 To 1,000 9 of the plaster described under (B) there were added 7.5 y of a 24.3% aqueous formulation as described in Example A4 above, with stirring.
. 3~
The result of the test is given in Table 3 below.
Example B8 35 To 1,000 g of the plaster described under (B) there were added 7.3 9 of a 25% aqueous formulation as described in Example A5 a~ove, with stirring.
The result of the test is given in Table 3 below.
2~60~2 BASFAKTI~NGEsELLscHAFr 15 o.z.ooso/42208 Table 3 Water Absorption Data for ~ampies B1 to B8 .
Example B 1 B2 B3 B4 B5 B6 B7 B8 .
AcWitive Arnount added to plaster B (g) none wax emulsion (6~%) - 3 6 - - - - -A2 25.2% strength - - - 7.3 - - - -A3 20.8% strength -- -- - - 8.8 17.6 - --M 24.3% strength - - - - - - 7.5 h5 25.0% strength -- -- -- - -- -- - 7.3 10 Wathr absjorption aRer 97 8.8 10.7 2.9 3.92.9 3.5 2.8 A~ ranCe jof speclmen swollen hard (C) Sealing Compounds ts A sealing compound based on a 65% polyacrylate dispersion having a glass transition temperature of -40C was prepared in a conventional mixer to the following recipe. The parts are by weight.
Parts Polymer dispersion (65% strength) 316 Caustic soda solution (10% strength) 3 Plasticizer (propoxilated cresol containing 20 PO units) 70 Titanium dioxide (rutile) 50 Sodium salt of a polyacrylic acid (20% strength) zs Calcium carbonate 560 1 ,000 Example C1 (Comparative Example) The sealing compound prepared as described under ~C) was pressed into a 30 groove having a width of 10 mm, a depth of 10 mm and a length of 100 mm.
After drying for 15 minutes at 23C and 65% relative humidity, the resistance of the compound to premature rainfall was determined. This was done by placing the compound at an angle of 45 and spraying it with water from a shower nozie located 35 cm away. The resistance to prema-35 ture rainfall is taken to be the time which elapses be~ore the off-water becomes cloudy in appearanceJ ie before ~he sealing compound begins to wash out.
The result of the test is given in Table 4 below.
.
': ' ~`
.. ' ' ~
.
-- ~3AsFAKTlENGEsELLscHAFT 11 2 0 6 0 ~ Q 2 o.z.ooso/42208 Example C2 To 1,500 g of the sealing compound prepared as described under (C) there were added 20 9 of the mixture of C2~-C24-olefin/maleic anhydride wax, ' 5 water, and NaOH prepared in Example A2 above.
The result of the test is given in Table 4 below~
Example C3 60 9 of the C20-C24-olefin/maleic anhydride copolymer described in Example 1 were dissolved in the 70~9 of plasticizer listed in the above recipe. This mixture (1 30~g) was then used when preparing the sealing compound to said recipe (C) instead of the 70~ of plasticizer.
The result of the test is given in Table 4 below.
Example C4 (Comparative Example) 20 1 9 of ~-aminopropyltriethoxysilane was worked into 1,000 g of the sealing compound prepared as described under (C).
The result of the test is given in Table 4 below.
zs Table 4 Resistance oF Sea!ing Compounds of Examples C1 to C4 to Premature Rainfall Examples Additive Amount added to 1,000 g of sealing compound none -- - -Al -- -- 60 ~--aminopropyltriethoxysilane . _ .
Resistance to premature rainfall (s) 0 240 180 0 ~s (D) Heavy Interior Pain~ (PVK approx. 83%) An emulsion paint based on a 50% acrylate/styrene dispersion (MFT app~ox.
22C, average particle size approx. 0.1 llm) was prepared using a dissolver ~!
40 made up of the cornponents in the recipe below (Comparative Example D1~.
The parts are by weight.
' , ' ' ' . ':
; ' ' ' ' -- BAS~ AKTIEN~ESELLSCHA~T lS 2 0 6 ~ ~ 0 2 o z oogo~42208 -Parts Water 91 Sodium hexametaphosphate, 10% strength 18.25 Ammonium polyacrylate, 30% strength 2.5 s Ammonia, 25% strength 2.5 Preservative 3 Methylhydroxyethyl cellulos~ (high mol. wt.), 2% strength 1~0 White spirit 180-210C 12 Trimethylpentanediol monoisobutyrate 12 Titanium dioxide (rutile) 71 Aluminum silicate 12 Calcium carbonate < 21lm 83 Calcium carbonate 5,um 417 Fatty alcohol ethoxylate, 20% strength 6 Defoamer 0.75 Water 28.3 Acrylate/styrene dispersion, 50% strength 90.7 1 ,000.00 2Q Examples D2 to D8 were carried out in a similar manner. In the Compara-tive Example D2 there were added 40 parts by weight of calcium stearate, and in Examples D3 to D8 the ammonia polyacrylate was replaced by copolymer dispersions of the invention as indicated in Table 5 below.
2s The paints thus obtained were applied to Leneta foil, and the coatings were subjected to an abrasion test as specified in DIN 53,778, Part 2. The results of the abrasion tests are listed in Table 5 below.
Table 5 30 Example Additive (Parts by weight)Abrasion Cycles Count D1 5Comp. E~el2.5 parts of ammorlium polyacrylate 30/O 900 D2 ~Comp. Ex.~ ditto plus 40 parts of calcium stearate <200 D3 3.0 parts of copolymer A1 25.2% 1,600 D4 6.0 parts of copolymer A1 25.2% 2,100 3sD5 6.2 parts of copolymer A6 24.1% 2,600 D6 6.2 parts of copolymer A4 24.3% 2,100 D7 6.0 parts of copolymer A5 25.0% 1,400 D8 6.0 parts of copolymer A7 24.9% 2,200 The use of the copolymers of the invention considerably improved the abrasion resistance.
, -: , ' ~. ~ . .
'- , '~ ' - :: .
. ~ - .
~. . , ; , ' ' - : ,
Claims (8)
1. A method of using a copolymer prepared by free-radical copoly-merization of (a) from 30% to 50% molar of and or more C13-C40-mono-olefins and/or C10-C40-alkylvinyl ethers with (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8-dicarboxylic anhydrides as a means for rendering colloidal sealing compounds, plasters, paints, and building adhesives hydrophobic.
2. A method as claimed in claim 1, wherein the anhydride groups of the copolymer are solvolyzed on completion of the polymerization.
3. A method as claimed in claim 1, wherein the anhydride groups of the copolymer are solvolyzed and at least 10% of the carboxyl groups resulting from the solvolysis are neutralized with a base.
4. A method as claimed in any of claims l to 3, wherein the anhyd-ride group-containing copolymer is obtained by polymerization of the mono-mers (a) and (b) in substance at a temperature of from 80° to 300°C.
5. A method as claimed in any of claims 2 to 4, wherein the solvol-ysis is carried out by adding water to the copolymer resulting from said polymerization, and at least 10% of the carboxyl groups of the hydrolyzed co-polymer are neutralized with ammonia, an amine, an alkali metal base, or an alkaline earth metal base.
6. A method as claimed in any of claims 2 to 4, wherein the solvol-ysis is carried out by adding a primary and/or secondary amine to the co-polymer resulting from said polymerization such that from 10% to 50% of the total carboxyl groups resulting from the polymerized units of monomer (b) in the copolymer are amidated and at least 10% of the total carboxyl groups formed are neutralized.
7. A method as claimed in any of claims 2 to 4, wherein the solvol-BASF AKTIENGESELLSCHAFT 20 O.Z. 0050/42208 ysis is carried out by adding an alcohol to the copolymer resulting from said polymerization such that from 10% to 50% of the total carboxyl groups result-ing from the polymerized units of monomer (b) in the copolymer are esteri-fied and at least 10% of the total carboxyl groups formed are neutralized.
8. A colloidal sealing compound, plaster, paint, or building adhesive whenever it contains a copolymer obtained from (a) from 30% to 50% molar of one or more C13-C40-mono-olefins and/or C10-C40-alkylvinyl ethers with (b) from 50% to 70% molar of one or more ethylenically unsaturated C4-C8-dicarboxylic anhydrides.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4103865.7 | 1991-02-08 | ||
DE19914103865 DE4103865A1 (en) | 1991-02-08 | 1991-02-08 | USE OF COPOLYMERISES BASED ON LONG-CHAINED MONOLEFINS AND / OR ALKYLVINYL ETHERS AND ETHYLENICALLY UNSATURATED DICARBONE ACID ANHYDRIDES FOR THE HYDROPHOBIC OF DISPERSION-RELATED SEALANTS, PREPARATIONS, PANELS AND CONSTRUCTION PANELS |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2060802A1 true CA2060802A1 (en) | 1992-08-09 |
Family
ID=6424671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2060802 Abandoned CA2060802A1 (en) | 1991-02-08 | 1992-02-06 | Use of a copolymer based on long-chain mono-olefins and/or alkylvinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for hydrophobizing colloidal sealing dicarboxylic anhydrides for hydrophobizing colloidal sealing compounds, plasters, paints and building adhesives |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0498195A3 (en) |
JP (1) | JPH0570654A (en) |
CA (1) | CA2060802A1 (en) |
DE (1) | DE4103865A1 (en) |
Cited By (1)
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US8716384B2 (en) | 2009-07-28 | 2014-05-06 | Clariant Finance (Bvi) Limited | Pigment concentrates |
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DE4137476A1 (en) † | 1991-11-14 | 1993-05-19 | Basf Ag | USE OF PIGMENT PREPARATIONS FOR THE PRODUCTION OF PASTE, PRINTING INKS AND VARNISHES |
DE4300239A1 (en) * | 1993-01-07 | 1994-07-14 | Basf Ag | Use of partially esterified copolymers containing carboxyl groups as dispersants |
US5976382A (en) * | 1996-07-10 | 1999-11-02 | Ligochem, Inc. | Removal of proteins from aqueuos media by precipitation |
DE19936324A1 (en) * | 1999-08-02 | 2001-02-22 | Geodur Cis Ag Zug | Mixture for treating waste material |
DE102004001990A1 (en) * | 2004-01-13 | 2005-08-04 | Basf Ag | Aqueous coating compositions with high pigment volume concentration |
EP1900756A1 (en) * | 2006-09-14 | 2008-03-19 | Basf Se | Process for the preparation of an aqueous polymer dispersion |
JP5758849B2 (en) * | 2012-06-15 | 2015-08-05 | ミサワホーム株式会社 | Exterior member and exterior structure |
CN104981528B (en) | 2013-02-01 | 2017-03-29 | 3M创新有限公司 | Contact adhesive composition and the adhesive article comprising the contact adhesive composition |
CN110219377A (en) * | 2019-05-28 | 2019-09-10 | 吴义付 | A kind of water-repellent paint and its waterproof construction method |
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US4045172A (en) * | 1973-05-10 | 1977-08-30 | Gaf Corporation | Textile soil release composition and method |
DE3108100A1 (en) * | 1981-03-04 | 1982-09-16 | Basf Ag, 6700 Ludwigshafen | METHOD FOR THE PRODUCTION OF COPOLYMERISATEN OF MALEINSAEUREANHYDRID |
DE3479318D1 (en) * | 1983-06-28 | 1989-09-14 | Johnson & Son Inc S C | Alphaolefin terpolymer and coating composition including said terpolymer |
US4859752A (en) * | 1987-09-11 | 1989-08-22 | S. C. Johnson & Son, Inc. | Alkene/excess maleic anhydride polymer manufacture |
DE3736996A1 (en) * | 1987-10-31 | 1989-05-11 | Basf Ag | METHOD FOR PRODUCING COPOLYMERISATS FROM ETHYLENICALLY UNSATURATED DICARBONIC ACID ANHYDRIDES AND ALKYLVINYL ETHERS |
DE3926168A1 (en) * | 1989-08-08 | 1991-02-14 | Basf Ag | USE OF COPOLYMERISATS BASED ON LONG-CHAIN ALKYLVINYL ETHERS AND ETHYLENICALLY UNSATURATED DICARBONIC ACID ANHYDRIDES FOR THE HYDROPHOBICATION OF LEATHER AND FUR SKINS |
-
1991
- 1991-02-08 DE DE19914103865 patent/DE4103865A1/en not_active Withdrawn
-
1992
- 1992-01-20 EP EP19920100813 patent/EP0498195A3/en not_active Withdrawn
- 1992-02-06 CA CA 2060802 patent/CA2060802A1/en not_active Abandoned
- 1992-02-07 JP JP2225792A patent/JPH0570654A/en not_active Withdrawn
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US8716384B2 (en) | 2009-07-28 | 2014-05-06 | Clariant Finance (Bvi) Limited | Pigment concentrates |
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Publication number | Publication date |
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EP0498195A2 (en) | 1992-08-12 |
EP0498195A3 (en) | 1992-09-16 |
DE4103865A1 (en) | 1992-08-13 |
JPH0570654A (en) | 1993-03-23 |
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