WO2005047356A1 - α-ALKOXYSILANE SOWIE IHRE ANWENDUNG IN ALKOXYSILANTERMINIERTEN PREPOLYMEREN - Google Patents
α-ALKOXYSILANE SOWIE IHRE ANWENDUNG IN ALKOXYSILANTERMINIERTEN PREPOLYMEREN Download PDFInfo
- Publication number
- WO2005047356A1 WO2005047356A1 PCT/EP2004/011215 EP2004011215W WO2005047356A1 WO 2005047356 A1 WO2005047356 A1 WO 2005047356A1 EP 2004011215 W EP2004011215 W EP 2004011215W WO 2005047356 A1 WO2005047356 A1 WO 2005047356A1
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- WIPO (PCT)
- Prior art keywords
- prepolymers
- general formula
- alkoxysilanes
- prepolymer
- groups
- Prior art date
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- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 13
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 13
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 238000002360 preparation method Methods 0.000 claims description 13
- 239000002243 precursor Substances 0.000 claims description 9
- 239000012948 isocyanate Substances 0.000 claims description 8
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 150000004756 silanes Chemical class 0.000 abstract description 22
- 239000000463 material Substances 0.000 abstract description 3
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 abstract description 2
- 125000005843 halogen group Chemical group 0.000 abstract description 2
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- -1 methoxysilyl Chemical group 0.000 description 34
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- 239000003054 catalyst Substances 0.000 description 27
- 150000003077 polyols Chemical class 0.000 description 25
- 229920005862 polyol Polymers 0.000 description 18
- 239000000945 filler Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 229910000077 silane Inorganic materials 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- HMNXRLQSCJJMBT-UHFFFAOYSA-N diethyl 2-aminobutanedioate Chemical compound CCOC(=O)CC(N)C(=O)OCC HMNXRLQSCJJMBT-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000011541 reaction mixture Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 6
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 6
- 239000005056 polyisocyanate Substances 0.000 description 6
- 229920001228 polyisocyanate Polymers 0.000 description 6
- 229920002959 polymer blend Polymers 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 229920000570 polyether Polymers 0.000 description 5
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 125000005370 alkoxysilyl group Chemical group 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 238000003776 cleavage reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 230000007017 scission Effects 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 description 3
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical class OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
- KIUCLRQNNKHLDB-UHFFFAOYSA-N [dimethoxy(methyl)silyl]methanamine Chemical compound CO[Si](C)(CN)OC KIUCLRQNNKHLDB-UHFFFAOYSA-N 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 description 3
- 238000004508 fractional distillation Methods 0.000 description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920001451 polypropylene glycol Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000012974 tin catalyst Substances 0.000 description 3
- ARKBFSWVHXKMSD-UHFFFAOYSA-N trimethoxysilylmethanamine Chemical compound CO[Si](CN)(OC)OC ARKBFSWVHXKMSD-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 description 2
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 229910018540 Si C Inorganic materials 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229940009098 aspartate Drugs 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 239000003574 free electron Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- ZJBHFQKJEBGFNL-UHFFFAOYSA-N methylsilanetriol Chemical compound C[Si](O)(O)O ZJBHFQKJEBGFNL-UHFFFAOYSA-N 0.000 description 2
- QRANWKHEGLJBQC-UHFFFAOYSA-N n-(trimethoxysilylmethyl)cyclohexanamine Chemical compound CO[Si](OC)(OC)CNC1CCCCC1 QRANWKHEGLJBQC-UHFFFAOYSA-N 0.000 description 2
- COFBOACTGSWMJQ-UHFFFAOYSA-N n-[[dimethoxy(methyl)silyl]methyl]cyclohexanamine Chemical compound CO[Si](C)(OC)CNC1CCCCC1 COFBOACTGSWMJQ-UHFFFAOYSA-N 0.000 description 2
- 150000001282 organosilanes Chemical class 0.000 description 2
- 125000005375 organosiloxane group Chemical group 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920001290 polyvinyl ester Polymers 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000002516 radical scavenger Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- PZJJKWKADRNWSW-UHFFFAOYSA-N trimethoxysilicon Chemical group CO[Si](OC)OC PZJJKWKADRNWSW-UHFFFAOYSA-N 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- SGUVLZREKBPKCE-UHFFFAOYSA-N 1,5-diazabicyclo[4.3.0]-non-5-ene Chemical compound C1CCN=C2CCCN21 SGUVLZREKBPKCE-UHFFFAOYSA-N 0.000 description 1
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 1
- WWBITQUCWSFVNB-UHFFFAOYSA-N 3-silylpropan-1-amine Chemical class NCCC[SiH3] WWBITQUCWSFVNB-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000007848 Bronsted acid Substances 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- XWSNOMORVOQOKF-UHFFFAOYSA-N COC(OC)[SiH2]CN Chemical compound COC(OC)[SiH2]CN XWSNOMORVOQOKF-UHFFFAOYSA-N 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- OKKJLVBELUTLKV-MZCSYVLQSA-N Deuterated methanol Chemical compound [2H]OC([2H])([2H])[2H] OKKJLVBELUTLKV-MZCSYVLQSA-N 0.000 description 1
- JYFHYPJRHGVZDY-UHFFFAOYSA-N Dibutyl phosphate Chemical compound CCCCOP(O)(=O)OCCCC JYFHYPJRHGVZDY-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical class [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 238000005618 Fries rearrangement reaction Methods 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 1
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
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- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 description 1
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- NBJODVYWAQLZOC-UHFFFAOYSA-L [dibutyl(octanoyloxy)stannyl] octanoate Chemical compound CCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCC NBJODVYWAQLZOC-UHFFFAOYSA-L 0.000 description 1
- LNWBFIVSTXCJJG-UHFFFAOYSA-N [diisocyanato(phenyl)methyl]benzene Chemical compound C=1C=CC=CC=1C(N=C=O)(N=C=O)C1=CC=CC=C1 LNWBFIVSTXCJJG-UHFFFAOYSA-N 0.000 description 1
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 description 1
- 125000005595 acetylacetonate group Chemical group 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000002490 anilino group Chemical class [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
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- 125000004122 cyclic group Chemical class 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- ZDDAXDMVTIAONB-UHFFFAOYSA-N diethoxymethylsilylmethanamine Chemical compound CCOC(OCC)[SiH2]CN ZDDAXDMVTIAONB-UHFFFAOYSA-N 0.000 description 1
- XEWLXCHZHOKRRF-JTQLQIEISA-N diethyl (2s)-2-[methyl(trimethoxysilyl)amino]butanedioate Chemical compound CCOC(=O)C[C@H](N(C)[Si](OC)(OC)OC)C(=O)OCC XEWLXCHZHOKRRF-JTQLQIEISA-N 0.000 description 1
- HMNXRLQSCJJMBT-LURJTMIESA-N diethyl (2s)-2-aminobutanedioate Chemical compound CCOC(=O)C[C@H](N)C(=O)OCC HMNXRLQSCJJMBT-LURJTMIESA-N 0.000 description 1
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- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical class CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 1
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- 239000006232 furnace black Substances 0.000 description 1
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- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- AQBLLJNPHDIAPN-LNTINUHCSA-K iron(3+);(z)-4-oxopent-2-en-2-olate Chemical compound [Fe+3].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O AQBLLJNPHDIAPN-LNTINUHCSA-K 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- ONGOPARARYRQHL-UHFFFAOYSA-N n-(trimethoxysilylmethyl)ethanamine Chemical compound CCNC[Si](OC)(OC)OC ONGOPARARYRQHL-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 description 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- MHZDONKZSXBOGL-UHFFFAOYSA-N propyl dihydrogen phosphate Chemical compound CCCOP(O)(O)=O MHZDONKZSXBOGL-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- LMHHRCOWPQNFTF-UHFFFAOYSA-N s-propan-2-yl azepane-1-carbothioate Chemical compound CC(C)SC(=O)N1CCCCCC1 LMHHRCOWPQNFTF-UHFFFAOYSA-N 0.000 description 1
- 150000003335 secondary amines Chemical group 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- PIILXFBHQILWPS-UHFFFAOYSA-N tributyltin Chemical class CCCC[Sn](CCCC)CCCC PIILXFBHQILWPS-UHFFFAOYSA-N 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/289—Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
Definitions
- the invention relates to aminomethyl-functional alkoxysilanes, prepolymers prepared from these silanes and compositions containing these prepolymers.
- Prepolymer systems which have reactive alkoxysilyl groups have been known for a long time and are widely used for the production of elastic sealants and adhesives in the industrial and construction sectors.
- these alkoxysilane-terminated prepolymers are capable of condensing with one another at room temperature, with elimination of the alkoxy groups and formation of an Si-O-Si bond. This means that these prepolymers can be use as one-component systems, which have the advantage of simple handling, since no second component has to be metered in and mixed in.
- alkoxysilane-terminated prepolymers Another advantage of alkoxysilane-terminated prepolymers is the fact that no acids, oximes or amines are released during curing. In contrast to isocyanate-based adhesives or sealants, there is also no CO2, which as a gaseous component can lead to the formation of bubbles. In contrast to isocyanate-based systems, alkoxysilane-terminated prepolymer mixtures are also toxicologically harmless in any case. Depending on the content of alkoxysilane groups and their structure, long-chain polymers (thermoplastics), relatively wide-meshed three-dimensional networks (elastomers) or highly cross-linked systems (thermosets) are formed when this prepolymer type is cured.
- thermoplastics thermoplastics
- elastomers relatively wide-meshed three-dimensional networks
- thermalosets highly cross-linked systems
- Alkoxysilane functional prepolymers can be made up of different building blocks. They usually have an organic backbone, ie they are made, for example, of polyurethanes, polyethers, polyesters, polyacrylates, polyvinyl esters, ethylene-olefin copolyers, styrene-butadiene copolymers or polyolefins constructed, described inter alia US 6,207,766 and US 3,971,751. In addition, systems are widely used, the backbone of which consists entirely or at least in part of organosiloxanes, described, inter alia, in US Pat.
- the monomeric alkoxysilanes via which the prepolymer is provided with the required alkoxysilane functions, are of central importance in the preparation of prepolymers.
- a wide variety of silanes and coupling reactions can be used, e.g. an addition of Si-H-functional alkoxysilanes to unsaturated prepolymers or a copolymerization of unsaturated organosilanes with other unsaturated monomers.
- Another method involves terminating alkoxysilane
- Prepolymers produced by conversion of OH-functional prepolymers with isocyanate-functional alkoxysilanes are described for example in US 5,068,304.
- the resulting prepolymers are often characterized by particularly positive properties, e.g. due to the very good mechanics of the hardened masses.
- the complex and costly preparation of the isocyanate-functional silanes and the fact that these silanes are extremely toxicologically disadvantageous are disadvantageous.
- a production process for alkoxysilane-terminated prepolymers which is based on polyols, for example polyether or polyester polyols, is often more favorable here.
- these react with an excess of a di- or polyisocyanate.
- the isocyanate-terminated prepolymers obtained are then reacted with an amino-functional alkoxysilane to give the desired alkoxysilane-terminated prepolymer.
- Such systems are described for example in EP 1 256 595, EP 1 245 601.
- the advantages of this system are, on the one hand, the particularly positive properties of the resulting prepolymers, for example the very good tear resistance of the cured compositions.
- the amino-functional silanes required as starting materials are through simple and inexpensive processes accessible and largely toxicologically harmless.
- a disadvantage of most known and currently used systems is their only moderate reactivity to moisture, both in the form of atmospheric moisture and in the form of - optionally added - water.
- the addition of a catalyst is therefore absolutely necessary. This is particularly problematic because the organotin compounds that are generally used as catalysts are toxicologically unsafe.
- the tin catalysts often also contain traces of highly toxic tributyltin derivatives.
- alkoxysilane-terminated prepolymer systems are particularly problematic when the methoxysilyl terminators are used instead of methoxysilyl terminators.
- methoxysilyl terminators are used instead of methoxysilyl terminators.
- ethoxysilyl-terminated prepolymers would be particularly advantageous in many cases because only ethanol is released as a cleavage product when they cure.
- titanium-containing catalysts for example titanium tetraisopropoxylate or bis (acetylacetonato) diisobutytitanate, which are described, for example, in EP 0 885 933, are conceivable here.
- these titanium catalysts have the disadvantage that they are not used together with numerous nitrogen-containing compounds can, since the latter act here as catalyst poisons.
- nitrogen-containing compounds for example as an adhesion promoter, would be desirable in many cases.
- nitrogen compounds for example aminosilanes, are used in many cases as starting materials in the production of the silane-terminated prepolymers.
- Alkoxysilane-terminated prepolymer systems such as are described, for example, in DE 101 42 050 and DE 101 39 132 can therefore be of great advantage.
- These prepolymers are distinguished by the fact that they contain alkoxysilyl groups which are separated from a nitrogen atom with a free electron pair only by a methyl spacer.
- these prepolymers have an extremely high reactivity to (atmospheric) moisture, so that they can be processed into prepolymer blends that can do without metal-containing catalysts, and yet cure at room temperature with sometimes extremely short adhesive free periods or at very high speed. Since these prepolymers thus have a
- Amine function in position to the silyl group they are also referred to as ⁇ -alkoxysilane-terminated prepolymers.
- ⁇ -alkoxysilane-terminated prepolymers are typically made by a reaction of an ⁇ -aminosilane, i.e. an aminomethyl-functional alkoxysilane, with an isocyanate-functional prepolymer or an isocyanate-functional precursor of the prepolymer.
- ⁇ -aminosilanes are N-cyclohexylaminomethyl-trimethoxysilane, N-ethylaminomethyl-trimethoxysilane, N-cyclohexylaminomethyl-ethyldimethoxysilane etc.
- aminomethyl-trimethoxysilane is degraded quantitatively to tetramethoxysilane in the presence of methanol within a few hours. With water it reacts to tetra-hydroxysilane or to higher condensation products of this silane. Aminomethyl-methyldimethoxysilane reacts accordingly with methanol to methyltrimethoxysilane and with water to methyltrihydroxysilane or to higher condensation products of this silane.
- N-substituted ⁇ -aminosilanes for example N-cyclohexylaminomethyl-methyldimethoxysilane, are somewhat more stable.
- this silane is also broken down quantitatively to methyltrimethoxysilane and with water to methyltrihydroxysilane in the presence of methanol.
- the other N-substituted ⁇ -aminosilanes with a secondary nitrogen atom according to the prior art also show the same degradation reactions.
- the only moderate stability of the ⁇ -aminosilanes can have an adverse effect, since these also differ among the Can at least partially decompose reaction conditions of prepolymer synthesis. This can lead to a deterioration in the prepolymer properties.
- the invention relates to aminomethyl-functional alkoxysilanes (Al) of the general formula [1]
- R ⁇ - an optionally halogen-substituted hydrocarbon radical
- R ⁇ an alkyl radical with 1-6 carbon atoms or an ⁇ -oxaalkyl-alkyl radical with a total of 2-10 carbon atoms
- R 3 an optionally substituted hydrocarbon radical
- R- is an optionally substituted hydrocarbon radical and a is 0, 1 or 2.
- the invention is based on the discovery that the silanes (AI) are distinguished by a markedly increased stability, for example methanolic solutions of the silanes
- the hydrocarbon radicals R 1 , R 3 , R 4 are preferably unsubstituted.
- the hydrocarbon radicals R ⁇ , R 3 , R 4 are preferably alkyl, cycloalkyl, alkenyl or aryl radicals.
- radicals R - * - methyl, ethyl or phenyl groups are preferred.
- the radicals R 2 are preferably
- the silanes (AI) are preferably prepared by the reaction of the suitable aminomethyl alkoxysilanes with maleic acid esters. This can take place both with and without a catalyst, but the reaction is preferably carried out without a catalyst. The reaction can be carried out either in bulk or in a solvent. However, the reaction is preferably carried out in bulk.
- silanes (AI) Another possible way of producing the silanes (AI) is the reaction of D- or L-aspartic acid esters or their mixtures with chloromethylakoxysilanes.
- the invention further relates to a process for the preparation of prepolymers (A) having end groups of the general formula [2],
- R 1 , R 2 , R 3 , R 4 - and a have the meanings given in the general formula [1], in which alkoxysilanes (AI) of the general formula [1] a) are reacted with isocyanate-impregnated prepolymer (A2) are reacted, or b) with a precursor of the prepolymer (A) containing NCO groups to give precursors containing end groups of the general formula [2], the precursor containing end groups of the general formula [2] being used in further reaction steps to give the finished prepolymer (A) is implemented.
- alkoxysilanes (AI) of the general formula [1] a) are reacted with isocyanate-impregnated prepolymer (A2) are reacted, or b) with a precursor of the prepolymer (A) containing NCO groups to give precursors containing end groups of the general formula [2], the precursor containing end groups of the general formula [2] being used in further reaction steps to
- the proportions of the individual components are preferably selected so that all of them in the reaction mixture react existing isocyanate groups.
- the resulting prepolymers (A) are therefore preferably free of isocyanate.
- the invention also relates to the prepolymers (A).
- silanes (AI) When the silanes (AI) are converted into silane-terminated prepolymers (A), they are preferably reacted with isocyanate-terminated prepolymers (A2).
- the latter are accessible, for example, by reacting one or more polyols (A21) with an excess of di- or polyisocyanates (A22).
- reaction steps can also be reversed, i.e. the silanes (AI) are reacted with an excess of one or more di- or polyisocyanates (A22) in a first reaction step and the polyol component (A21) is only added in the second reaction step.
- silanes (AI) are reacted with an excess of one or more di- or polyisocyanates (A22) in a first reaction step and the polyol component (A21) is only added in the second reaction step.
- Molecular weight Mn from 1000 to 25000 can be used. These can be, for example, hydroxyl-functional polyethers, polyesters, polyacrylates and methacrylates, polycarbonates, polystyrenes, polysiloxanes, polyamides, polyvinyl esters, polyvinyl hydroxides or polyolefins such as e.g. Trade polyethylene, polybutadiene, ethylene-olefin copolymers or styrene-butadiene copolymers.
- Polyols (A21) with a molecular weight Mn of from 2000 to 25000, particularly preferably from 4000 to 20,000, are preferably used.
- Particularly suitable polyols (A21) are aromatic and / or aliphatic polyester polyols and polyether polyols, as have been described many times in the literature.
- the polyethers and / or polyesters used as polyols (A21) can be both linear and branched, but unbranched, linear polyols are preferred.
- polyols (A21) can also have substituents such as halogen atoms.
- Polypropylene glycols with masses Mn from 4000 to 20,000 are preferred, since these have comparatively low viscosities even with long chain lengths.
- polysiloxanes are also suitable as polyols (A21) are hydroxyalkyl- or aminoalkyl-terminated polysiloxanes of the general formula [3]
- R 5 is a hydrocarbon radical having 1 to 12 carbon atoms, preferably methyl radicals,
- R ⁇ is a branched or unbranched hydrocarbon chain with 1-12 carbon atoms, preferably n-propyl, n is a number from 1 to 3000, preferably a number from 10 to 1000,
- Z is an OH or NHR 7 group
- R is hydrogen, an optionally halogen-substituted cyclic, linear or branched C ] _ to C ⁇ _ 8 alkyl or alkenyl radical or a C_ - to cis-aryl radical.
- Polyol component (A21) also low molecular weight diols, e.g. Glycol containing various regioisomers of propanediol, butanediol, pentanediol or hexanediol in the polyol component (A21).
- the use of these low molecular weight diols leads to an increase in the urethane group density in the
- Prepolymer (A) and thus to improve the mechanical properties of the cured compositions (M) that can be produced from these prepolymers.
- all customary isocyanates can be used as di- or polyisocyanates (A22) for the preparation of the prepolymers (A), as are often described in the literature.
- Common diisocyanates are, for example, diisocyanatodiphenylmethane (MDI), both in the form of crude or technical MDI and in the form of pure 4.4 "or 2,4 'isomers or mixtures thereof, tolylene diisocyanate (TDI) in the form of its various Regioisomers, diisocyanatonaphthalene (NDI), isophorone diisocyanate (IPDI), perhydrogenated MDI (H-MDI) or also of hexamethylene diisocyanate (HDI).
- MDI diisocyanatodiphenylmethane
- TDI tolylene diisocyanate
- NDI diisocyanatonaphthalene
- IPDI isophorone diisocyanate
- H-MDI perhydrogenated MDI
- HDI hexamethylene diisocyanate
- polyisocyanates (A22) are polymeric MDI (P-MDI), triphenylmethane triisocanate or isocyanurate or biuret-tri-isocyanates All di- and / or polyisocyanates (A22) can be used individually or in mixtures, but preferably only diisocyanates are used, if the UV stability of the prepolymers (A) or of the cured ones prepared from these prepolymers Materials (M) is important due to the particular application, aliphatic isocyanates are preferably used as component (A22).
- P-MDI polymeric MDI
- triphenylmethane triisocanate or isocyanurate or biuret-tri-isocyanates All di- and / or polyisocyanates (A22) can be used individually or in mixtures, but preferably only diisocyanates are used, if the UV stability of the prepolymers (A) or of the cured ones prepared from these prepolymers Materials (M) is important
- the prepolymers (A) can be prepared as a one-top reaction by simply combining the components described, a catalyst optionally being added and / or working carried out at elevated temperature. Regarding the relatively high exothermic nature of these reactions, it may be advantageous to add the individual components successively in order to be able to better control the amount of heat released. Separate cleaning or other processing of the prepolymer (A) is generally not necessary.
- the concentrations of all isocyanate groups and all isocyanate-reactive groups involved in all reaction steps and the reaction conditions are preferably chosen so that all isocyanate groups react in the course of prepolymer synthesis.
- the finished prepolymer (A) is therefore free of isocyanate.
- the concentration ratios and the reaction conditions are chosen so that almost all Chain ends (> 80% of the chain ends, particularly preferably> 90% of the chain ends) of the prepolymers (A) are terminated with alkoxysilyl groups of the general formula [2].
- NCO-terminated prepolymers (A2) are reacted with an excess of the silanes (AI) according to the invention.
- the excess is preferably 20-400%, particularly preferably 50-200%.
- the excess silane can be added to the prepolymer at any time, but the excess silane is preferably added during the synthesis of the prepolymers (A).
- the reactions between isocyanate groups and isocyanate-reactive groups which occur in the preparation of the prepolymers (A) can optionally be accelerated by a catalyst.
- a catalyst is preferably used, which also below as
- Hardening catalysts (C) are listed. It may even be possible for the preparation of the prepolymers (A) to be catalyzed by the same catalysts which later also serve as the curing catalyst (C) when the finished prepolymer mixtures are cured. This has the advantage that the curing catalyst (C) is already contained in the prepolymer (A) and no longer has to be added separately when compounding a finished prepolymer blend (M). Of course, combinations of several catalysts can also be used instead of one catalyst.
- the prepolymers (A) are preferably compounded with further components to give mixtures (M).
- a curing catalyst (C) can optionally be added.
- the organic tin compounds commonly used for this purpose such as, for example, dibutyltin dilaurate, dioctyltin dilaurate, dibutyltin diacetylacetonate, dibutyltin diacetate or dibutyltin dioctoate etc., are suitable here.
- Titanates for example titanium (IV) isopropylate, iron (III) compounds, for example iron (III) acetylacetonate, or also amines, for example triethylamine, tributylamine, 1, 4-diazabicyclo [2, 2, 2] octane, 1.8 - Diazabicyclo [5.4.0] undec-7-ene, 1, 5-diazabicyclo [4.3.0] non-5-ene, N, N-bis- (N, N-dimethyl-2-aminoethyl) -methylamine, N , N-
- Dimethylcyclohexylamine, N, N-dimethylphenlyamine, N-ethylmorpholinin etc. can be used.
- organic or inorganic Bronsted acids such as acetic acid, trifluoroacetic acid or benzoyl chloride, hydrochloric acid, phosphoric acid and their mono- and / or diesters, e.g. Butyl phosphate, (iso-)
- Propyl phosphate, dibutyl phosphate etc. are suitable as catalysts [C].
- numerous other organic and inorganic heavy metal compounds as well as organic and inorganic Lewis acids or bases can also be used here.
- the crosslinking rate can also be increased further by the combination of different catalysts or of catalysts with different cocatalysts or can be tailored precisely to the respective need. Mixtures (M) which exclusively contain catalysts free of heavy metals (C) are preferred.
- prepolymers (A) with silane termini of the general formula [2] also has the particular advantage that prepolymers (A) can also be prepared which contain only ethoxysilyl groups, ie silyl groups of the 'general formula [2], in the R 2 represents an ethyl radical.
- Suitable water scavengers are therefore especially highly reactive alkoxysilanes (D) of the general formula [4]
- B represents an OH, OR 7 , SH, SR 7 , NH 2 , NHR 7 , (R 7 ) _ group and R ⁇ , R 2 and a have the meanings given in the general formula [1] exhibit.
- a particularly preferred water scavenger is carbamatosilane, in which B represents an R 4 O-CO-NH group, where R 4 and R 7 have the meanings given above.
- the low molecular weight alkoxysilanes (D) can also serve as crosslinkers and / or reactive diluents.
- all silanes which have reactive alkoxysilyl groups and via which they can be incorporated into the resulting three-dimensional network during the curing of the polymer mixture (M) are suitable for this purpose.
- the alkoxysilanes (D) can increase the
- Suitable alkoxysilanes (D) in this function are, for example, alkoxymethyltrialkoxysilanes and alkoxymethyldi alkoxyalkylsilanes. Methoxy and ethoxy groups are preferred as alkoxy groups.
- the inexpensive alkyltri ethoxysilanes, such as methyltrimethoxysilane and vinyl or phenyltrimethoxysilane, and their partial hydrolyzates may also be suitable.
- the low molecular weight alkoxysilanes (D) can also serve as adhesion promoters.
- alkoxysilanes which have amino functions or epoxy functions can be used here. Examples include ⁇ -aminopropyltrialkoxysilanes, ⁇ - [N-aminoethylamino] propyltrialkoxysilanes, ⁇ -glycidoxypropyltrialkoxysilanes and all silanes of the general formula [4] in which B represents a nitrogen-containing group.
- the low molecular weight alkoxysilanes (D) can even serve as curing catalysts or cocatalysts.
- All basic aminosilanes are particularly suitable for this purpose, e.g. all aminopropylsilanes, N-aminoethyl inopropylsilanes and also all silanes of the general formula [4] insofar as B is a nitrogen-containing group.
- the alkoxysilanes (D) can be added to the prepolymers (A) at any time. If they have no NCO-reactive groups, they can even be added during the synthesis of the prepolymers (A). Based on 100 parts by weight of prepolymer (A), up to 100 parts by weight, preferably 1 to 40 parts by weight, of a low molecular weight alkoxysilane (D) can be added.
- fillers (E) Mixtures of the alkoxysilane-terminated prepolymers (A) are also usually added to fillers (E).
- the fillers (E) lead to a considerable improvement in the properties of the resulting mixtures (M). Above all, the tensile strength as well as the elongation at break can be increased considerably by using suitable fillers.
- Suitable fillers (E) are all materials, as are often described in the prior art. Examples of fillers are non-reinforcing fillers, i.e.
- fillers with a BET surface area of up to 50 m 2 / g such as quartz, diatomaceous earth, calcium silicate, zirconium silicate, zeolites, calcium carbonate, metal oxide powders such as aluminum, titanium, iron or Zinc oxides or their mixed oxides, barium sulfate, calcium carbonate, gypsum, silicon nitride, silicon carbide, boron nitride, glass and plastic powder; reinforcing fillers, ie fillers with a BET surface area of at least 50 m 2 / g, such as pyrogenically prepared silica, precipitated silica, carbon black, such as furnace black and acetylene black and silicon-aluminum mixed oxides having a large BET surface area; fibrous fillers such as asbestos as well
- the fillers mentioned can be hydrophobicized, for example by treatment with organosilanes or organosiloxanes or by etherification of hydroxyl groups to alkoxy groups. It can be a type of filler, a mixture of at least two fillers can also be used.
- the fillers (E) are preferably used in a concentration of 0-90% by weight, based on the finished mixture (M), with concentrations of 30-70% by weight being particularly preferred.
- filler combinations (E) which, in addition to calcium carbonate, also contain pyrogenic silica and / or carbon black.
- the mixtures (M) containing the prepolymers (A) may also contain small amounts of an organic solvent (F).
- This solvent serves to lower the viscosity of the uncrosslinked masses (M).
- all solvents and solvent mixtures are suitable as solvents (F).
- Compounds which have a dipole moment are preferably used as the solvent (F).
- Particularly preferred solvents have a heteroatom with free electron pairs that can form hydrogen bonds.
- preferred examples of such solvents are ethers such as t-butyl methyl ether, esters such as ethyl acetate or butyl acetate and alcohols such as methanol, ethanol, n- and t-butanol.
- the solvents (F) are preferably in a concentration of 0-20 vol .-% based on the finished prepolymer mixture (M) incl. all fillers (E) are used, solvent concentrations of 0-5% by volume being particularly preferred.
- the polymer mixtures (M) can contain, as further components, auxiliaries known per se, such as water scavengers and / or reactive thinners which differ from components (D), and also adhesion promoters, plasticizers, thixotropic agents, fungicides, flame retardants, pigments etc. Light stabilizers, antioxidants, radical scavengers and other stabilizers can also be added to the compositions (M). to
- Such additives are preferred to generate the desired property profiles, both the uncrosslinked polymer mixtures (M) and the cured compositions (M).
- polymer blends (M) in the field of adhesives, sealants and joint sealants, surface coatings and also in the manufacture of molded parts, ie polymer blends (M) can be used both in pure form and in the form of solutions or dispersions Come into play.
- N-methyl (dimethoxymethylsilyl) aspartic acid diethyl ester 67.6 g (0.50 mol) of aminomethyldimethoxymethylsilane are placed in a 250 ml reaction vessel with the possibility of stirring and cooling. 86.1 g (0.50 mol) of diethyl maleate are added dropwise to the silane within 3.5 h. The reaction mixture is cooled to 30 ° C. When the addition is complete, the mixture is stirred at room temperature for a further 16 h and then the reaction mixture is subjected to fractional distillation. 125.6 g (0.41 mol) of N-methyl (dimethoxymethylsilyl) aspartic acid diethyl ester are obtained as a colorless liquid (bp 107 ° C / 0.25 mbar).
- a prepolymer (A) 152 g (16 mmol) of a polypropylene glycol with an average molecular weight of 9500 g / mol ( Acclaim® 12200 from Bayer AG) are placed in a 250 ml reaction vessel with stirring, cooling and heating options and dewatered at 80 ° C. in vacuo for 30 minutes. The heating is then removed and 2.16 g (24 mmol) of 1,4-butanediol, 12.43 g (56 mmol) of isophorone diisocyanate and 80 mg of dibutyltin dilaurate (corresponding to a tin content of 100 ppm) are added under nitrogen. The mixture is stirred at 80 ° C. for 60 minutes. The NCO-terminated polyurethane prepolymer obtained is then cooled to 75 ° C and with 10.35 g (32 mmol) N ⁇
- Methyl (trimethoxymethylsilyl) aspartic acid diethyl ester mixed and stirred at 80 ° C. for 60 min. In the resulting prepolymer mixture, isocyanate groups can no longer be detected by IR spectroscopy.
- Polypropylene glycol with an average molecular weight of 9500 g / mol (Acclaim ® 12200 from Bayer AG) submitted and dewatered for 30 minutes at 80 ° C in a vacuum. The heating is then removed and 2.16 g (24 mmol) of 1,4-butanediol, 12.43 g (56 mmol) of isophorone diisocyanate and 80 mg of dibutyltin dilaurate (corresponding to a tin content of 100 ppm) are added under nitrogen. The mixture is stirred at 80 ° C. for 60 minutes. The NCO-terminated polyurethane prepolymer obtained is then cooled to 75 ° C.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04790177A EP1680457A1 (de) | 2003-11-06 | 2004-10-07 | a-ALKOXYSILANE SOWIE IHRE ANWENDUNG IN ALKOXYSILANTERMINIERTE N PREPOLYMEREN |
US10/595,646 US20090012322A1 (en) | 2003-11-06 | 2004-10-07 | Alkoxysilanes and Use Thereof In Alkoxysilane Terminated Prepolymers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10351802A DE10351802A1 (de) | 2003-11-06 | 2003-11-06 | alpha-Alkoxysilane sowie ihre Anwendung in alkoxysilanterminierten Prepolymeren |
DE10351802.9 | 2003-11-06 |
Publications (1)
Publication Number | Publication Date |
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WO2005047356A1 true WO2005047356A1 (de) | 2005-05-26 |
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ID=34559387
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PCT/EP2004/011215 WO2005047356A1 (de) | 2003-11-06 | 2004-10-07 | α-ALKOXYSILANE SOWIE IHRE ANWENDUNG IN ALKOXYSILANTERMINIERTEN PREPOLYMEREN |
Country Status (4)
Country | Link |
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US (1) | US20090012322A1 (de) |
EP (1) | EP1680457A1 (de) |
DE (1) | DE10351802A1 (de) |
WO (1) | WO2005047356A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1717254A1 (de) * | 2005-04-29 | 2006-11-02 | Sika Technology AG | Feuchtigkeitshärtende Zusammensetzung mit erhöhter Dehnbarkeit |
DE102007037198A1 (de) * | 2007-08-07 | 2009-02-12 | Wacker Chemie Ag | Vernetzbare Massen auf der Basis von Organosiliciumverbindungen |
DE102007037197A1 (de) * | 2007-08-07 | 2009-02-12 | Wacker Chemie Ag | Vernetzbare Massen auf der Basis von Organosiliciumverbindungen |
DE102010000881A1 (de) * | 2010-01-14 | 2011-07-21 | Henkel AG & Co. KGaA, 40589 | 1K- Kaschierklebstoff mit Silanvernetzung |
RU2456293C1 (ru) * | 2010-12-29 | 2012-07-20 | Государственное образовательное учреждение высшего профессионального образования "Московский государственный текстильный университет им. А.Н. Косыгина" | Алкоксисиланы с гидрофильными n-(1,2-дигидроксипропил) аминоалкилсодержащими и n-триалкоксисилилалкилуретансодержащими группами и способ их получения |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0596360A1 (de) * | 1992-11-06 | 1994-05-11 | Bayer Ag | Alkoxysilian- und Aminogruppen aufweisende Verbindungen |
WO2002066532A1 (de) * | 2001-02-20 | 2002-08-29 | Consortium für elektrochemische Industrie GmbH | Isocyanatfrie schäumbare mischungen mit hoher härtungsgeschwindigkeit |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US3971751A (en) * | 1975-06-09 | 1976-07-27 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Vulcanizable silylether terminated polymer |
US5068304A (en) * | 1988-12-09 | 1991-11-26 | Asahi Glass Company, Ltd. | Moisture-curable resin composition |
US5254657A (en) * | 1991-05-30 | 1993-10-19 | Shin-Etsu Chemical Co., Ltd. | RTV silicone rubber compositions and cured products thereof |
DE19619538A1 (de) * | 1996-05-15 | 1997-11-20 | Bayer Ag | Alkoxysilan- und Hydantoingruppen aufweisende Polyurethanprepolymere, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Dichtstoffen |
WO1998047939A1 (fr) * | 1997-04-21 | 1998-10-29 | Asahi Glass Company Ltd. | Compositions durcissant a la temperature ambiante |
US5932652A (en) * | 1997-12-17 | 1999-08-03 | Bayer Corporation | Aqueous polyurethane/urea dispersions containing alkoxysilane groups |
DE19849817A1 (de) * | 1998-10-29 | 2000-05-04 | Bayer Ag | Alkoxysilan-Endgruppen aufweisende Polyurethanprepolymere, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Dichtstoffen |
US6162938A (en) * | 1998-11-19 | 2000-12-19 | 3M Innovative Properties Company | Secondary amine-functional silanes, silane-functional polymers therefrom, and resulting cured polymers |
US6111010A (en) * | 1998-12-23 | 2000-08-29 | Bayer Corporation | Aqueous compounds containing alkoxysilane and/or silanol groups |
EP1256595A1 (de) * | 2001-05-10 | 2002-11-13 | Sika AG, vorm. Kaspar Winkler & Co. | Klebstoff, gefüllt mit oberflächenbehandelter Kreide und Russ |
-
2003
- 2003-11-06 DE DE10351802A patent/DE10351802A1/de not_active Withdrawn
-
2004
- 2004-10-07 US US10/595,646 patent/US20090012322A1/en not_active Abandoned
- 2004-10-07 WO PCT/EP2004/011215 patent/WO2005047356A1/de not_active Application Discontinuation
- 2004-10-07 EP EP04790177A patent/EP1680457A1/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0596360A1 (de) * | 1992-11-06 | 1994-05-11 | Bayer Ag | Alkoxysilian- und Aminogruppen aufweisende Verbindungen |
WO2002066532A1 (de) * | 2001-02-20 | 2002-08-29 | Consortium für elektrochemische Industrie GmbH | Isocyanatfrie schäumbare mischungen mit hoher härtungsgeschwindigkeit |
Also Published As
Publication number | Publication date |
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DE10351802A1 (de) | 2005-06-09 |
EP1680457A1 (de) | 2006-07-19 |
US20090012322A1 (en) | 2009-01-08 |
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