EP3601217A1 - Guanidine catalyst for curable compositions - Google Patents
Guanidine catalyst for curable compositionsInfo
- Publication number
- EP3601217A1 EP3601217A1 EP18709379.4A EP18709379A EP3601217A1 EP 3601217 A1 EP3601217 A1 EP 3601217A1 EP 18709379 A EP18709379 A EP 18709379A EP 3601217 A1 EP3601217 A1 EP 3601217A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groups
- formula
- guanidine
- silane
- radical
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 135
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 title claims abstract description 113
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 title claims abstract description 55
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000003054 catalyst Substances 0.000 title claims abstract description 40
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 83
- 229920000642 polymer Polymers 0.000 claims abstract description 55
- 150000001875 compounds Chemical class 0.000 claims abstract description 49
- 150000001718 carbodiimides Chemical class 0.000 claims abstract description 40
- 238000004132 cross linking Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 14
- -1 n-octyl Chemical group 0.000 claims description 103
- 229920000570 polyether Polymers 0.000 claims description 47
- 229910000077 silane Inorganic materials 0.000 claims description 44
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 32
- 239000000853 adhesive Substances 0.000 claims description 31
- 230000001070 adhesive effect Effects 0.000 claims description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 28
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 28
- 238000000576 coating method Methods 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims description 25
- 125000004432 carbon atom Chemical group C* 0.000 claims description 24
- 125000003545 alkoxy group Chemical group 0.000 claims description 21
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 18
- 239000005056 polyisocyanate Substances 0.000 claims description 18
- 229920001228 polyisocyanate Polymers 0.000 claims description 18
- 150000001412 amines Chemical class 0.000 claims description 17
- 125000005442 diisocyanate group Chemical group 0.000 claims description 17
- 239000004814 polyurethane Substances 0.000 claims description 17
- 229920002635 polyurethane Polymers 0.000 claims description 17
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000000565 sealant Substances 0.000 claims description 15
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 13
- 125000000217 alkyl group Chemical group 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 claims description 9
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 8
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 8
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 7
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 7
- 150000001409 amidines Chemical class 0.000 claims description 6
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 5
- 125000006353 oxyethylene group Chemical group 0.000 claims description 5
- 150000003512 tertiary amines Chemical class 0.000 claims description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 4
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 claims description 4
- 125000004200 2-methoxyethyl group Chemical group [H]C([H])([H])OC([H])([H])C([H])([H])* 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 3
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 3
- 125000005842 heteroatom Chemical group 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 claims description 3
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 claims description 3
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 3
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 16
- 238000013508 migration Methods 0.000 abstract description 7
- 230000005012 migration Effects 0.000 abstract description 7
- 230000009965 odorless effect Effects 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 231100000053 low toxicity Toxicity 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 229920005862 polyol Polymers 0.000 description 34
- 150000003077 polyols Chemical class 0.000 description 34
- 238000006243 chemical reaction Methods 0.000 description 30
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 19
- 229920000620 organic polymer Polymers 0.000 description 18
- 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 17
- 239000007788 liquid Substances 0.000 description 17
- 239000005058 Isophorone diisocyanate Substances 0.000 description 16
- IVLBLTUZCAKUCG-UHFFFAOYSA-N ethyl 3-oxobutanoate 2-methylpropan-1-olate titanium(4+) Chemical compound [Ti+4].CC(C)C[O-].CC(C)C[O-].CCOC(=O)[CH-]C(C)=O.CCOC(=O)[CH-]C(C)=O IVLBLTUZCAKUCG-UHFFFAOYSA-N 0.000 description 15
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 15
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 11
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 11
- LINDOXZENKYESA-UHFFFAOYSA-N TMG Natural products CNC(N)=NC LINDOXZENKYESA-UHFFFAOYSA-N 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000003446 ligand Substances 0.000 description 9
- 239000012299 nitrogen atmosphere Substances 0.000 description 9
- 125000005372 silanol group Chemical group 0.000 description 9
- 238000003860 storage Methods 0.000 description 9
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 8
- 239000004014 plasticizer Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000006260 foam Substances 0.000 description 7
- 239000012948 isocyanate Substances 0.000 description 7
- 150000002513 isocyanates Chemical class 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 150000004756 silanes Chemical class 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 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 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 description 6
- 239000002318 adhesion promoter Substances 0.000 description 6
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 6
- 150000002118 epoxides Chemical group 0.000 description 6
- 230000007717 exclusion Effects 0.000 description 6
- 150000002357 guanidines Chemical class 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- LTHNHFOGQMKPOV-UHFFFAOYSA-N 2-ethylhexan-1-amine Chemical compound CCCCC(CC)CN LTHNHFOGQMKPOV-UHFFFAOYSA-N 0.000 description 5
- DVFGEIYOLIFSRX-UHFFFAOYSA-N 3-(2-ethylhexoxy)propan-1-amine Chemical compound CCCCC(CC)COCCCN DVFGEIYOLIFSRX-UHFFFAOYSA-N 0.000 description 5
- ZYAASQNKCWTPKI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propan-1-amine Chemical compound CO[Si](C)(OC)CCCN ZYAASQNKCWTPKI-UHFFFAOYSA-N 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 5
- 125000003277 amino group Chemical group 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 5
- 150000002009 diols Chemical class 0.000 description 5
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 5
- 239000003925 fat Substances 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 5
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 235000019198 oils Nutrition 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
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- 229920000098 polyolefin Polymers 0.000 description 5
- 239000013615 primer Substances 0.000 description 5
- 239000002987 primer (paints) Substances 0.000 description 5
- 239000004753 textile Substances 0.000 description 5
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 4
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
- 239000004971 Cross linker Substances 0.000 description 4
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 4
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- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 4
- 239000002274 desiccant Substances 0.000 description 4
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 4
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- BMFVGAAISNGQNM-UHFFFAOYSA-N isopentylamine Chemical compound CC(C)CCN BMFVGAAISNGQNM-UHFFFAOYSA-N 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 description 4
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- 239000002023 wood Substances 0.000 description 4
- KYVBNYUBXIEUFW-UHFFFAOYSA-N 1,1,3,3-tetramethylguanidine Chemical compound CN(C)C(=N)N(C)C KYVBNYUBXIEUFW-UHFFFAOYSA-N 0.000 description 3
- OYWRDHBGMCXGFY-UHFFFAOYSA-N 1,2,3-triazinane Chemical class C1CNNNC1 OYWRDHBGMCXGFY-UHFFFAOYSA-N 0.000 description 3
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 description 3
- KIJDMKUPUUYDLN-UHFFFAOYSA-N 2,2-dimethyl-4-trimethoxysilylbutan-1-amine Chemical compound CO[Si](OC)(OC)CCC(C)(C)CN KIJDMKUPUUYDLN-UHFFFAOYSA-N 0.000 description 3
- 229940123208 Biguanide Drugs 0.000 description 3
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- 239000004643 cyanate ester Chemical group 0.000 description 3
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 3
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- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
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- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 3
- 239000003707 silyl modified polymer Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical class S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 3
- 230000009974 thixotropic effect Effects 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical group CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 3
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- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 1
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- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 description 1
- SCHTXWZFMCQMBH-UHFFFAOYSA-N pentane-1,3,5-triamine Chemical compound NCCC(N)CCN SCHTXWZFMCQMBH-UHFFFAOYSA-N 0.000 description 1
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- CUQCMXFWIMOWRP-UHFFFAOYSA-N phenyl biguanide Chemical compound NC(N)=NC(N)=NC1=CC=CC=C1 CUQCMXFWIMOWRP-UHFFFAOYSA-N 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000962 poly(amidoamine) Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
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- 229920006294 polydialkylsiloxane Polymers 0.000 description 1
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- 238000004382 potting Methods 0.000 description 1
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- JTQPTNQXCUMDRK-UHFFFAOYSA-N propan-2-olate;titanium(2+) Chemical compound CC(C)O[Ti]OC(C)C JTQPTNQXCUMDRK-UHFFFAOYSA-N 0.000 description 1
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- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
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- 239000004332 silver Substances 0.000 description 1
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- SVPYVBAHWDJDAX-UHFFFAOYSA-N silylmethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC[SiH3] SVPYVBAHWDJDAX-UHFFFAOYSA-N 0.000 description 1
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
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- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- HXOGQBSDPSMHJK-UHFFFAOYSA-N triethoxy(6-methylheptyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCCCC(C)C HXOGQBSDPSMHJK-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- 125000000725 trifluoropropyl group Chemical group [H]C([H])(*)C([H])([H])C(F)(F)F 0.000 description 1
- RKBCYCFRFCNLTO-UHFFFAOYSA-N triisopropylamine Chemical compound CC(C)N(C(C)C)C(C)C RKBCYCFRFCNLTO-UHFFFAOYSA-N 0.000 description 1
- UWSYCPWEBZRZNJ-UHFFFAOYSA-N trimethoxy(2,4,4-trimethylpentyl)silane Chemical compound CO[Si](OC)(OC)CC(C)CC(C)(C)C UWSYCPWEBZRZNJ-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- ASLWPAWFJZFCKF-UHFFFAOYSA-N tris(1,3-dichloropropan-2-yl) phosphate Chemical compound ClCC(CCl)OP(=O)(OC(CCl)CCl)OC(CCl)CCl ASLWPAWFJZFCKF-UHFFFAOYSA-N 0.000 description 1
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 description 1
- XKCQNWLQCXDVOP-UHFFFAOYSA-N tris(2-chloropropan-2-yl) phosphate Chemical compound CC(C)(Cl)OP(=O)(OC(C)(C)Cl)OC(C)(C)Cl XKCQNWLQCXDVOP-UHFFFAOYSA-N 0.000 description 1
- LIPMRGQQBZJCTM-UHFFFAOYSA-N tris(2-propan-2-ylphenyl) phosphate Chemical class CC(C)C1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C(C)C)OC1=CC=CC=C1C(C)C LIPMRGQQBZJCTM-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- GBNDTYKAOXLLID-UHFFFAOYSA-N zirconium(4+) ion Chemical compound [Zr+4] GBNDTYKAOXLLID-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C279/00—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
- C07C279/16—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of guanidine groups bound to carbon atoms of rings other than six-membered aromatic rings
-
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- 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
- C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
- C08G18/025—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only the polymeric products containing carbodiimide groups
-
- 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
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-
- 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
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- 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
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- C08G18/165—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22 covered by C08G18/18 and C08G18/24
-
- 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
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- C08G18/166—Catalysts not provided for in the groups C08G18/18 - C08G18/26
- C08G18/168—Organic compounds
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- 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
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- C08G18/1858—Catalysts containing secondary or tertiary amines or salts thereof having carbon-to-nitrogen double bonds
-
- 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
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- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/222—Catalysts containing metal compounds metal compounds not provided for in groups C08G18/225 - C08G18/26
-
- 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
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- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/24—Catalysts containing metal compounds of tin
- C08G18/244—Catalysts containing metal compounds of tin tin salts of carboxylic acids
- C08G18/246—Catalysts containing metal compounds of tin tin salts of carboxylic acids containing also tin-carbon bonds
-
- 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
- C08G18/285—Nitrogen containing compounds
- C08G18/2865—Compounds having only one primary or secondary amino group; Ammonia
-
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4866—Polyethers having a low unsaturation value
-
- 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5096—Polyethers having heteroatoms other than oxygen containing silicon
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/722—Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates
-
- 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
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- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- 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
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- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
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- C09J175/04—Polyurethanes
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
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- C07C2601/14—The ring being saturated
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- C07C277/00—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
- C07C277/08—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups of substituted guanidines
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Definitions
- the invention relates to guanidines and their use as catalysts for curable compositions, in particular based on silane-containing polymers.
- Curable compositions play an important role in many technical applications, for example as adhesives, sealants or coatings. Their curing is effected by crosslinking reactions which take place via reactive groups such as, for example, silane groups, isocyanate groups or epoxide groups, which react with themselves or with a reaction partner after a mixing operation, by heating or by contact with moisture and thus in the composition a polymeric network form. Catalysts are often used to accelerate such crosslinking reactions. Very often, these are substances of toxicological concern, which pose a potential hazard to the processor and the environment, in particular after the composition has cured, when the catalyst or its degradation products are released by outgassing, migration or leaching.
- reactive groups such as, for example, silane groups, isocyanate groups or epoxide groups
- Silane-containing polymers are in particular polyorganosiloxanes, which are commonly referred to as “SNicone” or “silicone rubbers”, and silane-containing organic polymers, which are also known as “silane-functional polymers", “silane-modified polymers” (SMP) or “silane-terminated polymers”
- SMP silane-modified polymers
- Their crosslinking proceeds via the condensation of silanol groups to form siloxane binders and is conventionally catalyzed by means of organotin compounds, in particular dialkyltin (IV) carboxylates, which are characterized by a very high activity in relation to the Silanol condensation and are very resistant to hydrolysis, but they are harmful and strong hazardous for water.
- organotin compounds in particular dialkyltin (IV) carboxylates
- organotin compounds have been described as alternative metal catalysts.
- these usually have a lower catalytic activity with respect to the silanol condensation and cause significantly slower crosslinking. Because of their lack of hydrolytic stability they can lose a large part of their activity when storing the composition by residual moisture content of the ingredients, whereby the curing slowed down greatly or comes to a standstill.
- organotin compounds are strongly basic nitrogen compounds from the class of amidines and guanidines, which can be used in combination with the mentioned metal catalysts or alone.
- many of the common amidine and guanidine catalysts in particular 1, 8-diazabicyclo [5.4.0] undec-7-ene (DBU) or 1,1,3,3-tetramethylguanidine (TMG), are highly volatile and odor-intensive as well as harmful to health and environmentally hazardous substances. In addition, they tend to migrate due to poor compatibility with the composition, thereby causing separation, exudation or substrate contamination.
- guanidine catalysts are known from WO 2015/158859, WO 2015/158860, WO 2015/158863, and WO 201 6/180840. However, these catalysts can still be improved in terms of their catalytic activity and / or compatibility with different polymer systems.
- guanidine of the formula (I) is largely odorless and low in toxicity. Despite a comparatively high molecular weight, it exhibits a surprisingly high catalytic activity for the crosslinking reaction of various functional compounds, in particular compounds with silane groups and / or isocyanate groups, and causes rapid curing of curable compositions thereof.
- the guanidine of the formula (I) can be prepared in a simple process via a polyfunctional carbodiimide adduct from readily available starting materials. It is readily miscible with different functional compounds, in particular with polymers containing silane groups, and exhibits hardly any separation or migration both before and after curing.
- n is an integer from 1 to 20
- A is an alkyl, cycloalkyl or aralkyl radical having 1 to 100 C atoms which optionally has one or more heteroatoms, in particular oxygen or nitrogen in the form of hydroxyl, ether, amino, amidine or guanidine Groups, is, is, or together with R 1 is an alkylene radical having 2 to 6 C-atoms, which optionally contains ether oxygen or Armin nitrogen and is optionally substituted, is,
- R 1 is a hydrogen radical or an alkyl radical having 1 to 8 C atoms, which optionally contains ether oxygen, or together with A is an alkylene radical having 2 to 6 C atoms, which is optionally ether Contains oxygen or amine nitrogen and is optionally substituted,
- D is a divalent aliphatic or cycloaliphatic or arylaliphatic radical having 6 to 15 C atoms
- B is a monovalent organic radical having an average molecular weight in the range of 150 to 5 ⁇ 00 g / mol, which is free of hydroxyl groups, primary and secondary amino groups and mercapto groups
- X is O or S or NR 2 , wherein R 2 is a hydrogen radical or an alkyl radical having 1 to 8 C atoms, which optionally contains ether oxygen or tertiary amine nitrogen is.
- a dashed line in the formulas in this document in each case represents the bond between a substituent and the associated molecular radical.
- the term "primary amino group” or “primary amine nitrogen” refers to an amino group or its nitrogen atom, respectively is bonded to a single organic radical and carries two hydrogen atoms;
- secondary amino group” or “secondary amine nitrogen” refers to an amino group or its nitrogen atom which is bonded to two organic radicals which may also together form part of a ring and bears a hydrogen atom;
- tertiary amine” or “tertiary amine nitrogen” denotes an amino group or its nitrogen atom which is bonded to three organic radicals, which may also be in twos or threes of one or more rings, and does not carry a hydrogen atom.
- a “functional compound” is defined as a compound which hardens with a suitable reaction partner to form a polymeric structure and carries at least one, in particular at least two, reactive groups, their reactive groups typically being electrophilic, while the reactants are nucleophilic or carry nucleophilic groups.
- curable is meant a composition capable of curing by crosslinking reactions of reactive groups contained therein or obtaining a state of increased mechanical strength.
- silane group refers to a silyl group bonded to an organic radical or to a polysiloxane radical having one to three, in particular two or three, hydrolyzable substituents on the silicon atom Particularly suitable hydrolyzable substituents are alkoxy radicals "Alkoxysilane groups”. Silane groups may also be present in partially or fully hydrolyzed form.
- Organoalkoxysilanes which carry one to three organic substituents on each alkoxysilane group and tetraalkoxysilanes are referred to as "silane.”
- Silanes which carry one or more hydroxyl, isocyanato, amino or mercapto groups on an organic radical in addition to the silane group are referred to as "hydroxysilane”, “isocyanatosilane”, “aminosilane” or “mercaptosilane”.
- organic polymer encompasses a collective of chemically uniform, but different in terms of degree of polymerization, molecular weight and chain length macromolecules, which was prepared by a polyreaction (polymerization, polyaddition, polycondensation) and having a majority of carbon atoms in the polymer backbone, and reaction products
- polymers having a polyorganosiloxane backbone commonly referred to as "silicones" are not organic polymers within the meaning of the present specification.
- silane-containing polyethers refers to silane-containing organic polymers which have in the polymer chain mainly polyether units In addition to the polyether units, in particular urethane groups, urea groups or thiourethane groups may also be used be included. Such silane-containing polyethers may also be referred to as "polyurethanes having a sue group”.
- molecular weight refers to the molar mass (in grams per mole) of a molecule.
- Average molecular weight refers to the number average M n of a polydisperse mixture of oligomeric or polymeric molecules, which is usually determined by gel permeation chromatography (GPC) against polystyrene as the standard becomes.
- a “stable in storage” or “storable” refers to a substance or composition when it can be stored at room temperature in a suitable container for a prolonged period of time, typically at least 3 months to 6 months or more, without being present in its application - Use or properties, in particular the viscosity and the rate of crosslinking, changed by the storage in a relevant for their use to the extent.
- room temperature refers to a temperature of approx. 23 ° C.
- the guanidine of formula (I) may also be present in tautomeric form with respect to the guanidine groups present. All possible tautomer forms are considered equivalent. Furthermore, it can also be present in protonated form. It may also be in complexed form, especially with cations of zinc, iron or molybdenum.
- the guanidine of formula (I) is free of hydroxyl groups.
- Such a guanidine is particularly storage stable in a composition containing alkoxysilane groups.
- N is preferably an integer from 1 to 10, in particular from 2 to 8.
- A is preferably an alkyl, cycloalkyl or aralkyl radical having 1 to 50 C atoms, which optionally has one or more hydroxyl groups, ether groups and / or amino groups, or together with R 1 for an alkylene radical with 2 to 6 C atoms, which optionally contains ether oxygen or tertiary amine nitrogen and is optionally substituted.
- R 1 for an alkylene radical with 2 to 6 C atoms, which optionally contains ether oxygen or tertiary amine nitrogen and is optionally substituted.
- A is free of hydroxyl groups.
- A is particularly preferably selected from the group consisting of methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, n-hexyl, isohexyl, n-octyl, 2-ethylhexyl, n-decyl, lauryl, cocoalkyl, oleyl, cyclohexyl, benzyl, 2-methoxyethyl, 3-methoxypropyl, 3- (2-ethylhexyl-oxy) propyl, 3- (N, N-dimethylamino) propyl and coco- (Alkyloxy) poly (oxyalkylene) alkyl having 1, 2-oxyethylene and 1, 2-oxypropylene units and a molecular weight in the range of 180 to 600 g / mol.
- radicals A having 1 to 12 C atoms ie methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, n-hexyl, isohexyl, n-butyl Octyl, 2-ethylhexyl, n-decyl, lauryl, cyclohexyl, benzyl, 2-methoxyethyl, 3-methoxypropyl, 3- (2-ethylhexyloxy) propyl or 3- (N, N-dimethylamino) propyl.
- These guanidines of the formula (I) are particularly active.
- R 1 is a hydrogen radical or methyl, ethyl, n-propyl or n-butyl, in particular a hydrogen radical or methyl.
- a and R 1 together are 1, 4-butylene, 1, 5-pentylene, 3-oxa-1, 5-pentylene or N-methyl-3-aza-1, 5-pentylene.
- D is selected from the group consisting of 2-methyl-1, 5-pentylene, 1, 6-hexylene, 2,2 (4), 4-trimethyl-1,6-hexamethylene, (1, 5,5-trimethylcyclo hexan-1-yl) methane-1,3,3,3,3-cyclohexylene-bis (methylene), 1,4-cyclohexylene-bis (methylene), 1,3-phenylene-bis (methylene) and (methylenedicyclohexyl) -4,4 '.
- a guanidine of the formula (I) is derived from commercially available aliphatic diisocyanates and thus particularly easily accessible.
- D is 1, 6-hexylene, (1, 5,5-trimethylcyclohexan-1-yl) methane
- D is particularly preferably (methylenedicyclohexyl) -4,4 '.
- B is preferably a monovalent organic radical having an average molecular weight in the range from 150 to 2 ⁇ 00 g / mol, which in particular has ether groups.
- B particularly preferably represents lauryl, cocoalkyl, oleyl, 2- (cö- (alkyloxy) poly (oxyethylene)) ethyl, 2- (a> (alkyloxy) poly (oxyethyleneoxypropylene)) ethyl, 2- ( ⁇ - ( ⁇ - kyloxy) poly (oxyethylene-oxypropylene)) propyl or 2- (cö- (alkyloxy) poly (oxypropylene)) propyl, wherein alkyl is methyl, ethyl, butyl, 2-ethylhexyl, lauryl, cocoalkyl or oleyl and the polymeric radicals have an average molecular weight in the range of 150 to 2 ⁇ 00 g / mol, in particular 200 to 1 ⁇ 00 g / mol. Of these, preferred are the polyether radicals. Such a guanidine of the formula (I) is particularly well tolerated with polyether polymers and thus particularly suitable as a catalyst for polyether-based functional compounds
- X is O or NR 2 , in particular O.
- R 2 is a hydrogen radical or methyl, in particular a hydrogen radical.
- X is O and B is 2- (c (alkyloxy) poly (oxyethylene)) ethyl, 2- (a> (alkoxy) poly (oxyethyleneoxypropylene)) ethyl, 2- (c0- (alkyloxy) - poly (oxyethyleneoxypropylene) propyl or 2- (cö- (alkyloxy) poly (oxypropylene)) -propyl, wherein alkyl is methyl, ethyl, butyl, 2-ethylhexyl, lauryl, cocoalkyl or oleyl and these radicals have an average molecular weight in the Range of 150 to 2 ⁇ 00 g / mol, in particular 200 to 1 ⁇ 00 g / mol.
- Such guanidine of formula (I) is usually liquid at room temperature and comparatively low viscosity, particularly well tolerated with polyether polymers and thus particularly suitable as a catalyst for polyether-based functional compounds or curable compositions.
- the guanidine of the formula (I) preferably has an average value of n in the range from 1 .1 to 6, preferably 1 .5 to 4, in particular 1 .8 to 3, on.
- Such a guanidine of the formula (I) is comparatively low-viscosity and catalytically very active.
- the invention further provides a process for preparing the guanidine of the formula (I) by reacting a carbodiimide adduct of the formula (II) with at least one amine of the formula (III)
- n, A, R 1 , D, B and X have the meanings already mentioned.
- This reaction is preferably carried out at a temperature in the range from 20 to 1 60 ° C, in particular 40 to 140 ° C, preferably 60 to 120 ° C, optionally in the presence of at least one catalyst.
- the reaction is preferably carried out without the presence of solvents.
- an approximately stoichiometric ratio is chosen between the amine of formula (III) and the carbodiimide groups of the carbodiimide adduct of formula (II), such that the carbodiimide groups are predominantly reacted.
- amine of the formula (III) Particularly suitable as the amine of the formula (III) are methylamine, dimethylamine, ethylamine, diethylamine, propylamine, isopropylamine, butylamine, dibutylamine, isobutylamine, sec-butylamine, tert-butylamine, n-pentylamine, isopentylamine, n-butylamine, Hexylamine, isohexylamine, n-octylamine, 2-ethylhexylamine, n-decylamine, laurylamine, cocoalkylamine, oleylamine, cyclohexylamine, N-methylcyclohexylamine, benzylamine, N-methylbenzylamine, 2-methoxyethylamine, 3 Methoxypropylamine, 3- (2-ethylhexyloxy) propylamine, 3- (N, N-dimethyl
- a suitable carbodiimide adduct of the formula (II) is obtained, in particular, from the reaction of at least one carbodiimide of the formula (IV) with at least one compound of the formula (V)
- This reaction is preferably carried out at a temperature in the range of 20 to 140 ° C, in particular 30 to 120 ° C, preferably 40 to 100 ° C, optionally in the presence of at least one catalyst.
- the reaction is preferably carried out without the presence of solvents.
- a stoichiometric or slightly more than stoichiometric ratio between the HX groups of the compound of the formula (V) and the isocyanate groups of the carbodiimide of the formula (IV) is selected and the reaction is conducted so that all isocyanate groups are reacted.
- the resulting carbodiimide adduct of the formula (II) is preferably used without further treatment or purification.
- Particularly suitable compounds of the formula (V) are mercaptans, alcohols or primary or secondary amines.
- Particularly suitable compounds of the formula (V) are polyether monols having an average molecular weight in the range from 150 to 2 ⁇ 00 g / mol, preferably 200 to 1 ⁇ 00 g / mol, in particular 2- (co- (alkyloxy) poly (oxyethylene)) ethylol, 2- (a> - (alkyloxy) poly (oxyethyleneoxypropylene)) ethylol, 2- (c0- (alkyloxy) poly (oxyethyleneoxypropylene) propylol or 2- (c0- (alkyloxy) poly (oxypropylene) propylol, wherein alkyl is methyl, ethyl, butyl, 2-ethylhexyl, lauryl, cocoalkyl or oleyl.
- Such compounds of formula (V) allow at room temperature liquid carbodiimide adducts with good handling viscosity.
- Suitable carbodiimide of the formula (IV) are reaction products of at least one diisocyanate of the formula D- (NCO) 2 in the presence of a carbodiimidization catalyst with heating and liberation of CO 2.
- Preferred carbodiimidization catalysts are phospholene oxides, in particular 3-methyl-1-phenyl-2-phospholene-1-oxide or 1-methyl-2 (3) -phospholen-1-oxide.
- diisocyanates of the formula D- (NCO) 2 are 2-methylpentamethylene-1,5-diisocyanate, 1,6-hexamethylene diisocyanate (HDI), 2,2 (4), 4-trimethyl-1,6-hexamethylene diisocyanate (TMDI), 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (IPDI), 1, 3-bis (isocyanatomethyl) clohexane, 1, 4-bis (isocyanatomethyl) clohexane, m-xylylene diisocyanate (m -XDI), or perhydro-4,4'-diphenylmethane diisocyanate (H12MDI), in particular HDI or IPDI or
- the process for preparing the guanidine of the formula (I) is preferably carried out by:
- the reaction product from this process is preferably used without work-up or purification.
- the process described for the preparation of the guanidine of the formula (I) is surprisingly rapid and simple, in particular without the use of excipients and without requiring a treatment or purification of the reaction product, feasible and is based on easily accessible, inexpensive starting materials.
- Suitable carbodiimide adducts of formula (II) are also commercially available, for example Picassian ® XL-725 (of steel polymer).
- Another object of the invention is the use of the guanidine of the formula (I) as a catalyst for the crosslinking of a functional compound.
- the guanidine of the formula (I) catalyzes the crosslinking reaction of the reactive groups or the curing of the functional compound and curable compositions thereof.
- Preferred reactive groups of the functional compound are silane groups, isocyanate groups, epoxide groups or cyanate ester groups.
- Isocyanate group-containing polymers in particular isocyanate-group-containing polyurethane polymers,
- Glycidoxy-containing compounds in particular epoxy resins, cyanate ester resins, or
- Polymers with various reactive groups in particular compounds or polymers with isocyanate and silane groups or with isocyanate and epoxide groups.
- the functional compound is preferably a silane, a polymer containing silane groups, a polyisocyanate or a polyurethane polymer containing isocyanate groups.
- Suitable polyisocyanates are in particular monomeric diisocyanates, oligomers or polymers or derivatives of monomeric diisocyanates, or any mixtures thereof.
- Suitable monomeric diisocyanates are in particular 2,4- or 2,6-toluene diisocyanate or any desired mixtures of these isomers (TDI), 4,4'-, 2,4'- or 2,2'-diphenylmethane diisocyanate or any desired mixtures of these isomers ( MDI), mixtures of MDI and MDI homologs (polymeric MDI or PMDI), 1, 3 or 1, 4-phenylene diisocyanate, 2,3,5,6-tetramethyl-1,4-diisocyanatobenzene, naphthalene-1, 5-diisocyanate (NDI), 3,3'-dimethyl-4,4'-diisocyanatodiphenyl (TODI), dianisidine diisocyanate (DADI), 1, 4-tetramethylene diisocyanate, 2-methyl-pentamethylene-1, 5-diisocyanate, 1, 6 Hexamethylene diisocyanate (HDI), 2,2 (4), 4-
- MDI TDI
- IPDI IPDI
- HDI HDI
- Suitable oligomers, polymers or derivatives of monomeric diisocyanates are in particular derived from MDI, TDI, HDI or IPDI.
- Particularly preferred polyisocyanates are liquid forms of MDI which have a high content of 4,4'-diphenylmethane diisocyanate at room temperature exhibit.
- liquid MDI represents in particular either a 4,4'-diphenylmethane diisocyanate liquefied by partial chemical modification - in particular carbodiimidization or uretonimine formation, or is a mixture of 4,4'-, which is deliberately brought about by mixing or caused by the production process.
- Diphenylmethane diisocyanate with other MDI isomers (2,4'-diphenylmethane diisocyanate and / or 2,2'-diphenylmethane diisocyanate) or MDI oligomers or MDI homologs.
- Suitable polyurethane polymers containing isocyanate groups are obtained, in particular, from the reaction of at least one polyol with a superstoichiometric amount of at least one polyisocyanate, in particular a diisocyanate.
- the reaction is preferably carried out with exclusion of moisture at a temperature in the range of 50 to 1 60 ° C, optionally in the presence of suitable catalysts.
- the excess of polyisocyanate is preferably selected such that in the polyurethane polymer after the reaction of all hydroxyl groups, a content of free isocyanate groups in the range of 1 to 30% by weight, preferably 1 .5 to 25% by weight, particularly preferably 2 to 20% by weight. , remains.
- the polyurethane polymer may be prepared using plasticizers or solvents, with the plasticizers or solvents used containing no isocyanate-reactive groups.
- diisocyanates are MDI, TDI, PMDI, HDI, IPDI, H12MDI, or oligomers or derivatives of these diisocyanates.
- polyether polyols preferably polyoxyalkylene polyols which are polymerization products of ethylene oxide or 1,2-propylene oxide or 1,2- or 2,3-butylene oxide or oxetane or tetrahydrofuran or mixtures thereof, possibly polymerized with the aid of a starter molecule with two or more active hydrogens; Polyester polyols, preferably products from the polycondensation of diols or triols with lactones or dicarboxylic acids or their esters or anhydrides; polycarbonate polyols; OH-terminated block copolymers having at least two different blocks with polyether, polyester or polycarbonate units; Polyacrylate or polymethacrylate polyols; Polyhydroxy-functional fats or oils, especially natural fats or oils; or Polykohlenwasserstoffpolyole such as polyhydroxy-functional polyolefins, in particular polybutadiene polyols.
- polyether polyols preferably polyoxyalkylene polyols which are
- the isocyanate group-containing polyurethane polymer preferably has an average molecular weight in the range of 350 to 30 ⁇ 00 g / mol, in particular 1 ⁇ 00 to 15 ⁇ 00 g / mol.
- Particularly preferred functional compounds are silanes and / or silane-containing polymers.
- the guanidine of the formula (I) has a strong catalytic effect on the hydrolysis and condensation reactions of silane groups. Silane and silane-containing polymers therefore cure quickly even with a relatively small amount of this catalyst.
- silane suitable as silane, tetramethoxysilane, tetraethoxysilane, methyl thyltrimethoxysilan, ethyltrimethoxysilane, Propytrimethoxysilan, Octyltrimetho- particular xysilan, isooctyltrimethoxysilane, vinyltrimethoxysilane, phenyltrimethoxysilane, methyltriethoxysilane, octyltriethoxysilane, isooctyltriethoxysilane, silane Vinyltriethoxy-, phenyltriethoxysilane, aminosilanes such as in particular 3-Aminopropyltrime- thoxysilan, 3- Aminopropyldimethoxymethylsilane, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane, N- (2-a
- silane-containing polymer is a polyorganosiloxane having terminal silane groups or an organic polymer having silane groups.
- a preferred silane-terminated polyorganosiloxane has the formula (VI)
- R 3 , R 4 and R 5 independently of one another each represent a monovalent hydrocarbon radical having 1 to 12 C atoms
- G is a hydroxyl radical or an alkoxy, acetoxy, ketoximato, amido or enoxy radical having 1 to 13 C atoms,
- p 0, 1 or 2
- n is an integer in the range of 50 to about 2,500.
- R 3 is preferably methyl, vinyl or phenyl.
- R 4 and R 5 are each, independently of one another, each an alkyl radical having 1 to 5, preferably 1 to 3, C atoms, in particular methyl.
- G preferably represents a hydroxyl radical or an alkoxy or ketoxymato radical having 1 to 6 C atoms, in particular a hydroxyl, methoxy, ethoxy, methyl ethyl ketoximato or methyl isobutyl ketoximato radical.
- G is particularly preferably a hydroxyl radical.
- p is preferably 0 or 1, in particular 0.
- m is preferably chosen so that the polyorganosiloxane of the formula (VI) at room temperature has a viscosity in the range from 100 to 500 ⁇ 00 mPa ⁇ s, in particular from 1 ⁇ 00 to 100 ⁇ 00 mPa ⁇ s.
- Suitable commercially available polyorganosiloxanes of the formula (VI) are obtainable, for example, from Wacker, Momentive Performance Materials, GE Advanced Materials, Dow Corning, Bluestar Silicones or Shin-Etsu.
- Suitable organic polymers containing silane groups are, in particular, a polyolefin, polyether, polyester, polyamide, poly (meth) acrylate or mixed forms of these polymers, which in each case carry one or preferably several silane groups.
- the silane groups can be located laterally in the chain or terminally and are bound to the organic polymer via a carbon atom.
- the silane-functional organic polymer is particularly preferably a silane-containing polyolefin or a polyether containing silane groups or a polyester containing silane groups or a poly (meth) acrylate containing silane groups or a mixed form of these polymers.
- the silane group-containing organic polymer is a silane group-having polyether.
- the silane-containing organic polymer preferably has as silane groups alkoxysilane groups, in particular alkoxysilane groups of the formula (VII),
- R 6 is a linear or branched, monovalent hydrocarbon radical having 1 to 5 C atoms, in particular methyl, ethyl or isopropyl
- R 7 is a linear or branched, monovalent hydrocarbon radical having 1 to 8 C atoms, in particular methyl, stands, and
- x is a value of 0 or 1 or 2, preferably 0 or 1, in particular 0. More preferably R 6 is methyl or ethyl.
- trimethoxysilane groups dimethoxymethylsilane groups or triethoxysilane groups.
- methoxysilane groups have the advantage that they are particularly reactive and crosslink quickly
- ethoxysilane groups have the advantage that they are particularly stable on storage and release little toxic ethanol in the networking.
- the silane-containing organic polymer has on average preferably 1 .3 to 4, in particular 1 .5 to 3, particularly preferably 1 .7 to 2.8, silane groups per molecule.
- the silane groups are preferably terminal.
- the silane-containing organic polymer preferably has an average molecular weight in the range of 1 ⁇ 00 to 30 ⁇ 00 g / mol, in particular 2 ⁇ 00 to 20 ⁇ 00 g / mol.
- the silane-containing organic polymer preferably has a silane-equivalent weight of 300 to 25 ⁇ 00 g / Eq, in particular 500 to 15 ⁇ 00 g / Eq, on.
- the silane-containing organic polymer may be solid or liquid at room temperature. It is preferably liquid at room temperature.
- the silane-containing organic polymer is a polyether having liquid silane groups at room temperature, the silane groups being in particular dialkoxysilane groups and / or trialkoxysilane groups, more preferably trimethoxysilane groups or triethoxysilane groups.
- silane-containing polyethers are known in the art.
- silane-containing polyethers are obtainable from the reaction of allyl-containing polyethers with hydrosilanes, optionally with chain extension with, for example, diisocyanates.
- silane-functional polyethers are obtainable from the copolymerization of alkylene oxides and epoxysilanes, optionally with chain extension with, for example, diisocyanates.
- silane-functional polyethers are obtainable from the reaction of polyether polyols with isocyanatosilanes, optionally with chain extension with diisocyanates.
- silane-containing polyethers are obtainable from the reaction of polyisocyanates containing isocyanate groups, in particular NCO-terminated urethane polyethers from the reaction of polyether polyols with a superstoichiometric amount of polyisocyanates, with aminosilanes, hydroxysilanes or mercaptosilanes.
- Silane-group-containing polyethers from this process are particularly preferred. This method allows the use of a variety of commercially available, inexpensive starting materials, with which different polymer properties can be obtained, for example, a high ductility, a high strength, a low elastic modulus, a low glass transition point or a high weather resistance.
- the silane-functional polyether is particularly preferably obtainable from the reaction of NCO-terminated urethane polyethers with aminosilanes or hydroxysilanes.
- Suitable NCO-terminated urethane polyethers are obtainable from the reaction of polyether polyols, in particular polyoxyalkylene diols or polyoxyalkylene triols, preferably polyoxypropylene diols or polyoxypropylene triols, with a superstoichiometric amount of polyisocyanates, especially diisocyanates.
- the reaction between the polyisocyanate and the polyether polyol is preferably carried out with exclusion of moisture at a temperature of from 50 ° C. to 1 60 ° C., if appropriate in the presence of suitable catalysts, wherein the polyisocyanate is metered so that its isocyanate groups are present in stoichiometric excess relative to the hydroxyl groups of the polyol.
- the excess of polyisocyanate is chosen so that in the resulting urethane polyether after the reaction of all hydroxyl groups, a content of free isocyanate groups of 0.1 to 5% by weight, preferably 0.2 to 4% by weight, particularly preferably 0.3 to 3% by weight. %, remains.
- Preferred diisocyanates are selected from the group consisting of HDI, IPDI, TDI and MDI. Particularly preferred are IPDI or TDI. Most preferred is IPDI. This silane-containing polyethers are obtained with particularly good light fastness.
- polyether polyols are polyoxyalkylenediols or polyoxyalkylenetriols having a degree of unsaturation lower than 0.02 meq / g, in particular lower than 0.01 meq / g, and an average molecular weight in the range from 400 to 25,000 g / mol, in particular from 1 to 20,000 g / mol.
- polyether polyols In addition to polyether polyols, it is also possible proportionally to use other polyols, in particular polyacrylate polyols, and low molecular weight diols or salts.
- Suitable aminosilanes for reaction with an NCO-terminated urethane polyether are primary and secondary aminosilanes. Preference is given to 3-aminopropyltrimethoxysilane, 3-aminopropyldimethoxymethylsilane, 4-aminobutyltrimethoxysilane, 4-amino-3-methylbutyltrimethoxysilane, 4-amino-3,3-dimethylbutyltrimethoxysilane, N-butyl-3-aminopropyltrimethoxysilane, N-phenyl-3- aminopropyltrimethoxysilane, adducts of primary aminosilanes such as 3-aminopropyltrimethoxysilane, 3-aminopropyldimethoxymethylsilane or N- (2-aminoethyl) -3-aminopropyltrimethoxysilane and Michael acceptors such as acrylonitrile, (meth) acrylic
- Suitable hydroxysilanes for the reaction with an NCO-terminated urethane polyether are obtainable in particular from the addition of aminosilanes to lactones or to cyclic carbonates or to lactides.
- aminosilanes are 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 4-aminobutyltrimethoxysilane, 4-aminobutyltriethoxysilane, 4-amino-3-methylbutyltrimethoxysilane, 4-amino-3-methylbutyltriethoxysilane, 4-amino-3,3-dimethylbutyltrimethoxysilane , 4-amino-3,3-dimethylbutyltriethoxysilane, 2-aminoethyltrimethoxysilane or 2-aminoethyltriethoxysilane.
- 3-aminopropyltrimethoxysilane 3-aminopropyltriethoxysilane, 4-amino-3,3-dimethylbutyltrimethoxysilane or 4-amino-3,3-dimethylbutyltriethoxysilane.
- Suitable lactones are, in particular, ⁇ -valerolactone, ⁇ -octalactone, ⁇ -decalactone or ⁇ -decalactone, in particular ⁇ -valerolactone.
- cyclic carbonates Particularly suitable as cyclic carbonates are 4,5-dimethyl-1,3-dioxolan-2-one, 4,4-dimethyl-1,3-dioxolan-2-one, 4-ethyl-1,3-dioxolane 2-one, 4-methyl
- lactides are 1,4-dioxane-2,5-dione (lactide from 2-hydroxyacetic acid, also called “glycolide”), 3,6-dimethyl-1,4-dioxane-2,5-dione ( Lactide from lactic acid, also called “lactide”) or 3,6-diphenyl-1,4-dioxane
- Preferred hydroxysilanes obtained in this manner are N- (3-triethoxysilylpropyl) -2-hydroxypropanamide, N- (3-triethoxysilylpropyl) -4-hydroxypentanamide, N- (3-triethoxysilylpropyl) -4-hydroxyoctanamide, N - (3-triethoxysilylpropyl) -5-hydroxydecanamide, N- (3-triethoxysilylpropyl) -2-hydroxypropyl carbamate and the corresponding silanes with methoxy instead of the ethoxy groups.
- suitable hydroxysilanes are also obtainable from the addition of aminosilanes to epoxides or from the addition of amines to epoxysilanes.
- Preferred hydroxysilanes obtained in this manner are 2-morpholino-4 (5) - (2-trimethoxysilylethyl) cyclohexan-1-ol, 2-morpholino-4 (5) - (2 triethoxysilylethyl) cyclohexan-1-ol or 1-morpholino-3- (3- (triethoxysilyl) propoxy) propan-2-ol.
- silane-containing polyethers are commercially available products, in particular the following: MS Polymer TM (ex Kaneka Corp., in particular the types S203H, S303H, S227, S810, MA903 and S943); MS Polymer TM or Silyl TM (from Kaneka Corp., especially the types SAT010, SAT030, SAT200, SAX350, SAX400, SAX725, MAX450, MAX951); Excestar ® (Asahi Glass Co.
- MS Polymer TM ex Kaneka Corp., in particular the types S203H, S303H, S227, S810, MA903 and S943
- MS Polymer TM or Silyl TM from Kaneka Corp., especially the types SAT010, SAT030, SAT200, SAX350, SAX400, SAX725, MAX450, MAX951
- Excestar ® Asahi Glass Co.
- silane-containing organic polymers have end groups of the formula (VIII)
- R 8 is a divalent, linear or branched hydrocarbon radical having 1 to 12 C atoms, which optionally has cyclic and / or aromatic moieties and optionally one or more heteroatoms, in particular one or more nitrogen atoms,
- T is a bivalent radical selected from -O-, -S-, -N (R 9 ) -,
- R 9 is a hydrogen radical or a linear or branched hydrocarbon radical having 1 to 20 C atoms, which optionally has cyclic moieties, and which optionally has an alkoxysilane, ether or carboxylic ester group, is, and R 6 , R 7 and x have the meanings already mentioned.
- R 8 is 1, 3-propylene or 1, 4-butylene, where butylene may be substituted by one or two methyl groups.
- R 8 is particularly preferably 1,3-propylene.
- Particularly preferred functional compounds are polyethers containing silane groups.
- Another object of the invention is a curable composition
- a curable composition comprising at least one guanidine of the formula (I), as described above.
- the guanidine of the formula (I) catalyzes the crosslinking or curing of the composition.
- the curable composition preferably contains reactive groups selected from silane groups, isocyanate groups, epoxide groups and cyanate ester groups.
- the curable composition particularly preferably contains silane groups and / or isocyanate groups, in particular silane groups.
- the curable composition preferably contains at least one polyisocyanate or at least one polyurethane polymer having isocyanate groups or at least one silane or at least one polymer having silane groups, as described above.
- the curable composition comprises at least one silane and / or at least one silane-containing polymer.
- the curable composition is preferably used for bonding, sealing, insulating, coating or pretreatment in construction and industrial applications, in particular as a concrete element adhesive, facade adhesive, parquet adhesive, window profile adhesive, anchoring adhesive, assembly adhesive, Body adhesive, window adhesive, sandwich element adhesive, laminating adhesive, laminate adhesive, packaging adhesive, joint sealant, floor joint, filler, sealing membrane, flanged or welded sealant, cavity sealant, construction foam, furniture foam, foam filter, insulation foam, sound insulation foam, packaging foam, body foam, floor covering, floor coating, balcony coating, roof coating , Protective coating, parking garage coating, pipe coating, corrosion protection coating, textile coating, primer, activator or bonding agent, or as a molded part, semifinished product, film or fiber, in particular as cushions, upholstery, mattress, shoe sole, shock absorber, damping element, seal, tire , Roll, bearing, roller, conveyor belt, hose, housing, window profile, insulation board, modeling board, sandwich element, fiber composite body, implant, packaging film, laminating film or textile fiber.
- the curable composition is in particular a pretreatment agent, in particular an adhesion promoter solution, an activator or a primer.
- the composition contains, in addition to the guanidine of the formula (I), in particular at least one silane and at least one solvent, and optionally other constituents such as in particular titanates and / or zirconates, further catalysts and optionally fillers, wetting agents, polyisocyanates, isocyanate- and / or silane-containing polyurethane polymers or epoxy resins.
- Such a pretreatment agent is used in particular for the pretreatment of substrates, which are subsequently brought into contact with a further curable composition, in particular a coating, an adhesive or a sealant, after a suitable release time, wherein the pretreatment agent in particular the adhesion of the coating or improved the adhesive or sealant.
- the curable composition contains at least one silane group-containing polymer, especially an organic polymer containing silane groups, as previously described.
- Such a composition has a good storage stability without catalyst-induced tendency to separation, allows due to the low toxicity and low volatility of the guanidine of the formula (I) a low hazard classification and allows low-emission and largely odorless products, which cure quickly, while a mechanically high-quality and durable Form material.
- this material is prone to migration-related defects such as sweating or substrate contamination, in contrast to compositions with catalysts of the prior art, such as DBU or TMG.
- Compositions containing such catalysts known from the prior art are prone to migration effects, which can manifest themselves before curing by separation and after hardening by sticky and / or greasy surfaces and / or substrate contaminants. Especially the latter effects are extremely undesirable, since sticky and greasy surfaces quickly become dirty and poorly paintable, and substrate contamination can lead to permanent discoloration.
- the guanidine of the formula (I) is preferably present in the curable composition in an amount such that the concentration of guanidine groups, based on the amount of the functional compound, in particular based on the amount of the silane-containing polymer, is in the range from 0.1 to 50 mmol / 100 g, preferably 0.2 to 50 mmol / 100 g, in particular 0.5 to 20 mmol / 100 g.
- Such a composition has good shelf life and fast cure.
- the composition may contain further catalysts which, in particular, the crosslinking of isocyanate groups and / or catalyze silane groups.
- Particularly suitable as further catalysts are metal compounds and / or basic nitrogen or phosphorus compounds.
- Suitable metal compounds are in particular compounds of tin, titanium, zirconium, aluminum or zinc, in particular diorganotin (IV) compounds, in particular dibutyltin (IV) diacetate, dibutyltin (IV) dilaurate, dibutyltin (IV) dineodecanoate or Dibutyltin (IV) bis (acetylacetonate) and dioctyltin (IV) dilaurate, and also titanium (IV) or zirconium (IV) or aluminum (II) or zinc (II) complexes with in particular alkoxy, carboxylate, 1, 3-diketonate, 1, 3-ketoesterate or 1, 3-ketoamidate ligands.
- diorganotin (IV) compounds in particular dibutyltin (IV) diacetate, dibutyltin (IV) dilaurate, dibutyltin (IV) dineodecanoate or Dibutyltin (IV) bis
- Suitable basic nitrogen or phosphorus compounds are in particular imidazoles, pyridines, phosphazene bases or preferably amines, hexahydrotriazines, biguanides, amidines or other guanidines.
- Particularly suitable amines are alkyl, cycloalkyl or aralkylamines such as triethylamine, triisopropylamine, 1-butylamine, 2-butylamine, tert-butylamine, 3-methyl-1-butylamine, 3-methyl-2-butylamine, dibutylamine, tributylamine, hexyl amine, dihexylamine, cyclohexylamine, dicyclohexylamine, dimethylcyclohexylamine, benzylamine, dibenzylamine, dimethylbenzylamine, octylamine, 2-ethylhexylamine, di (2-ethylhexyl) amine, laurylamine, ⁇ , ⁇ -dimethyl-laurylamine, stearylamine, ⁇ , ⁇ -dimethylstearylamine; fatty amines derived from natural fatty acid mixtures; aliphatic, cyclo
- Suitable hexahydrotriazines are, in particular, 1,3,5-hexahydrotriazine, 1,3,5-trimethylhexahydrotriazine or 1,3,5-tris (3- (dimethylamino) propyl) -hexahydro triazine.
- Suitable biguanides are, in particular, biguanide, 1-butylbiguanide, 1,1-dimethylbiguanide, 1-butylbiguanide, 1-phenylbiguanide or 1- (o-tolyl) biguanide (OTBG).
- Suitable amidines are in particular 1, 8-diazabicyclo [5.4.0] undec-7-ene (DBU), 1, 5-diazabicyclo [4.3.0] non-5-ene (DBN), 6-dibutylamino-1, 8- diazabicyclo [5.4.0] undec-7-ene, 6-dibutylamino-1,8-diazabicyclo [5.4.0] undec-7-ene, N, N'-di-n-hexylacetamidine (DHA), 2- Methyl-1, 4,5,6-tetrahydropyrimidine, 1, 2-dimethyl-1, 4,5,6-tetrahydropyrimidine, 2,5,5-trimethyl-1, 4,5,6-tetrahydropyrimidine, N- (3 Trimethoxysilylpropyl) -4,5-dihydroimidazole or N- (3-triethoxysilylpropyl) -4,5-dihydroimidazole.
- DBU 1,
- Suitable further guanidines are, in particular, 1-butylguanidine, 1,1-dimethylguanidine, 1,3-dimethylguanidine, 1,1,3,3-tetramethylguanidine (TMG), 2- (3- (trimethoxysilyl) propyl) -1, 1,3,3-tetramethylguanidine, 2- (3- (methyldimethoxysilyl) propyl) -1,3,3-tetramethylguanidine, 2- (3- (triethoxysilyl) propyl) -1,3,3-tetramethylguanidine , 1, 5,7-triazabicyclo [4.4.0] dec-5-ene (TBD), 7-methyl-1, 5,7-triazabicyclo [4.4.0] dec-5-ene, 7-cyclohexyl 1, 5,7-triazabicyclo [4.4.0] dec-5-ene, 1-phenylguanidine, 1- (o-tolyl) guanidine (OTG), 1,3-diphen
- the composition can contain as co-catalyst an acid, in particular a carboxylic acid.
- an acid in particular a carboxylic acid.
- aliphatic carboxylic acids such as formic acid, lauric acid, stearic acid, isostearic acid, oleic acid, 2-ethyl-2,5-dimethylcaproic acid, 2-ethylhexanoic acid, neodecanoic acid, fatty acid mixtures from the saponification of natural fats and oils or di- and polycarboxylic acids, in particular poly (meth ) acrylic acids.
- the composition in a preferred embodiment is substantially free of organotin compounds. Organotin-free compositions are beneficial in terms of health and environmental protection.
- the tin content of the curable composition is less than 0.1% by weight, in particular less than 0.05% by weight.
- the composition contains a combination of at least one guanidine of the formula (I) and at least one organotin compound, in particular a diorganotin (IV) compound, such as those mentioned above.
- a composition has a high curing rate even at a low tin content, which is advantageous for toxicological and ecological reasons.
- the composition additionally contains at least one organotitanate in addition to the guanidine of the formula (I).
- a combination of the guanidine formula (I) and an organotitanate has a particularly high catalytic activity. This allows rapid curing with a relatively small amount of organotitanate used.
- organotitanates are titanium (IV) complex compounds.
- Preferred organoititanates are in particular selected from
- Titanium (IV) complex compounds with two 1,3-diketonate ligands, in particular 2,4-pentanedionate ( acetylacetonate), and two alkoxide ligands; Titanium (IV) complex compounds with two 1,3-ketoesterate ligands, in particular ethylacetoacetate, and two alkoxide ligands;
- Titanium (IV) complex compounds with one or more aminoalcoholate ligands in particular triethanolamine or 2- ((2-aminoethyl) amino) ethanol, and one or more alcoholate ligands;
- Titanium (IV) tetrabutoxide also referred to as polybutyl titanate; in particular isobutoxy, n-butoxy, isopropoxy, ethoxy and 2-ethylhexoxy being suitable as alkoxide ligands.
- Tyzor ® AA GBA, GBO, AA-75, AA-65, AA-105, DC, BEAT, BTP, TE, TnBT, KTM, TOT, TPT or Ibay are (all of Dorf Ketal) ; Tytan PBT, TET, X85, TAA, ET, S2, S4 or S6 (all from Borica Company Ltd.) and Ken-React ® KR TTS ®, 7, 9QS, 12, 26S, 33DS, 38S, 39DS, 44, 134S , 138S, 133DS, 158FS or LICA 44 ® (all from Kenrich Petrochemicals).
- Very particularly suitable organo selected from bis (ethyl acetoacetate) diisobutoxy-titanium (IV) (commercially available for example as Tyzor ® Ibay of Dorf Ketal) (bis (ethyl acetoacetate) diisopropoxy-titanium (IV) is commercially available for example as Tyzor ® DC from Ketal village), bis (acetylacetonato) diisopropoxy-titanium (IV), bis (acetylacetonato) diisobutoxy-titanium (IV), tris (oxyethyl) -amine-isopropoxy-titanium (IV), bis [tris (oxyethyl) amine ] diisopropoxy-titanium (IV), bis (2-ethylhexane-1,3-dioxy) -titanium (IV), tris [2- ((2-aminoethyl) -amino) -ethoxy] -e
- the curable composition preferably contains at least one further constituent selected from the group consisting of fillers, plasticizers, rheology additives, drying agents, adhesion promoters and crosslinkers. Most preferably, it contains any combination of several of these ingredients.
- Suitable fillers are, in particular, inorganic or organic fillers, in particular natural, ground or precipitated calcium carbonates, which are optionally coated with fatty acids, in particular stearic acid, barite, talc, quartz flour, quartz sand, dolomites, wollastonites, kaolins, calcined kaolins, Mica (potassium aluminum silicate), molecular sieves, Aluminum oxides, aluminum hydroxides, magnesium hydroxide, silicas including finely divided silicas from pyrolysis processes, industrially produced carbon blacks, graphite, metal powders such as aluminum, copper, iron, silver or steel, PVC powder or hollow spheres.
- fatty acids in particular stearic acid, barite, talc, quartz flour, quartz sand, dolomites, wollastonites, kaolins, calcined kaolins, Mica (potassium aluminum silicate), molecular sieves, Aluminum oxides, aluminum hydroxides, magnesium hydroxide,
- Suitable plasticizers are, in particular, trialkylsilyl-terminated polydialkylsiloxanes, preferably trimethylsilyl-terminated polydimethylsiloxanes, in particular having viscosities in the range from 10 to 10000 Pas, or corresponding compounds in which some of the methyl groups are replaced by other organic groups, in particular phenyl groups.
- Reactive plasticizers in the form of monofunctional, ie unilaterally reactive, polysiloxanes, carboxylic acid esters such as phthalates, in particular dioctyl phthalate, bis (2-ethylhexyl) phthalate, bis (3-propylheptyl) phthalate, diisononyl phthalate or diisodecyl phthalate, Diesters of ortho-cyclohexanedicarboxylic acid, in particular diisononyl 1, 2-cyclohexanedicarboxylate, adipates, in particular dioctyl adipate, bis (2-ethylhexyl) adipate, azelates, in particular bis (2-ethylhexyl) acelate, sebacates, in particular bis (2-ethylhexyl) sebacate or diisononyl sebacate, polyols, in particular polyoctyl phthalate, bis (2-eth
- Suitable rheology additives are, in particular, thickeners, in particular phyllosilicates, such as bentonites, derivatives of castor oil, hydrogenated castor oil, polyamides, polyurethanes, urea compounds, pyrogenic silicas, cellulose ethers or hydrophobically modified polyoxyethylenes.
- Suitable drying agents are in particular tetraethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane or organoalkoxysilanes which have a functional group in the a position to the silane group, in particular N- (methyl-) silane groups.
- Suitable adhesion promoters and / or crosslinkers are, in particular, aminosilanes, in particular 3-aminopropyltrimethoxysilane, 3-aminopropyldimethoxymethylsilane, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane, N- (2-aminoethyl) -3-aminopropyldimethoxymethylsilane, N- (2-aminoethyl) Aminoethyl) -N '- [3- (trimethoxysilyl) propyl] ethylenediamine or its analogues with ethoxy groups instead of methoxy groups, furthermore N-phenyl-, N-cyclohexyl- or N-alkylaminosilanes, mercaptosilanes, epoxysilanes, (Meth) acrylosilanes, anhydridosilanes, carbamatosi
- the composition contains at least one desiccant and at least one adhesion promoter and / or crosslinker.
- the composition does not contain phthalates as a plasticizer.
- phthalates as a plasticizer.
- Such compositions are toxicologically advantageous and may have fewer problems with migration effects.
- the composition contains a polyisocyanate and / or a polyurethane polymer containing isocyanate groups, additionally preferably at least one isocyanate-reactive polyfunctional compound is present, in particular
- polyols in particular the polyols which are suitable for the preparation of an isocyanate group-containing polyurethane polymer.
- polyether polyols Preference is given to polyether polyols, polyester polyols, polycarbonate polyols, poly (meth) acrylate polyols or polybutadiene polyols.
- polyether polyols Particular preference is given to polyether polyols, in particular polyoxypropylene polyols and / or ethylene oxide-terminated polyoxypropylene polyols.
- polyols having an average molecular weight in the range from 400 to 10 ⁇ 00 g / mol, in particular 500 to 6 ⁇ 00 g / mol.
- polyols having an average OH functionality in the range from 1.6 to 4, in particular from 1.8 to 3, particularly preferably from 2.2 to 3.
- Polyether polyols having dispersed therein polymer particles, in particular those containing styrene-acrylonitrile, are also suitable.
- SAN polyurea or polyhydrazodicarbonamide particles
- Chain extenders especially 1, 2-ethanediol, 1, 3-propanediol, 2-methyl
- - Blocked amino-containing compounds in particular aldimines, ketimines, enamines, oxazolidines, imidazolidines or hexahydropyrimidines. ;
- composition may contain other ingredients, in particular the following auxiliaries and additives:
- Pigments in particular titanium dioxide or iron oxides; - dyes;
- non-reactive polymers in particular homopolymers or copolymers of unsaturated monomers, in particular from the group comprising ethylene, propylene, butylene, isobutylene, isoprene, vinyl acetate or alkyl (meth) acrylates, in particular polyethylenes (PE), polypropylenes (PP), Polyisobutylenes, ethylene-vinyl acetate copolymers (EVA) or atactic poly-cc-olefins (APAO);
- PE polyethylenes
- PP polypropylenes
- EVA ethylene-vinyl acetate copolymers
- APAO atactic poly-cc-olefins
- Flame retardant substances in particular the already mentioned fillers aluminum hydroxide and magnesium hydroxide, or in particular organic phosphoric acid esters such as in particular triethyl phosphate, tricresyl phosphate, triphenyl phosphate, diphenyl cresyl phosphate, isodecyldiphenyl phosphate, tris (1,3-dichloro-2-propyl) phosphate, tris (2 -chloroethyl) phosphate, tris (2-ethylhexyl) phosphate, tris (chloroisopropyl) phosphate, tris (chloropropyl) - phosphate, isopropylated triphenyl phosphate, mono-, bis- or tris (isopropylphenyl) phosphates of different isopropylation degree, resorcinol bis (diphenyl phosphate ), Bisphenol A bis (diphenyl phosphate) or ammonium poly
- Fibers in particular glass fibers, carbon fibers, metal fibers, ceramic fibers or plastic fibers such as polyamide fibers or polyethylene fibers;
- Biocides in particular algicides, fungicides or fungal growth inhibiting substances;
- the composition is preferably made and stored in the absence of moisture. Typically, it is storage stable in a suitable package or assembly such as, in particular, a cartridge, a bottle, a can, a bag, a bucket, a hobbock, or a drum, excluding moisture.
- a suitable package or assembly such as, in particular, a cartridge, a bottle, a can, a bag, a bucket, a hobbock, or a drum, excluding moisture.
- composition may be in the form of a one-component or in the form of a multi-component, in particular two-component, composition.
- one-component in the present document is meant a composition in which all constituents of the composition are stored mixed in the same container and which is curable with moisture.
- two-component is referred to in this document a composition in which the components of the composition in two different components are present, which are stored in separate containers. Only shortly before or during the application of the composition, the two components are mixed together, whereupon the mixed composition cures, optionally under the action of moisture.
- the composition contains a polyisocyanate and / or an isocyanate group-containing polyurethane polymer
- it is preferably bicomponent.
- the one component contains the polyisocyanate and / or the isocyanate group-containing polyurethane polymer and the other component contains the guanidine of the formula (I) and additionally at least one isocyanate-reactive polyfunctional compound.
- composition contains a silane-containing organic polymer, it is preferably one-component.
- a second or optionally further components is or are mixed with the first component before or during the application, in particular via a static mixer or via a dynamic mixer.
- the composition is in particular ambient warm, preferably in a temperature range between 0 ° C and 45 ° C, in particular 5 ° C to 35 ° C, applied and cures even under these conditions.
- the crosslinking reaction of the functional groups begins, optionally under the influence of moisture.
- isocyanate groups react with hydroxyl groups, or primary or secondary amino groups, or under the influence of moisture with blocked amino groups. If appropriate, further isocyanate groups react with one another under the influence of moisture.
- silane groups can condense with existing silanol groups to form siloxane groups (Si-O-Si groups). On contact with moisture, existing silane groups can also hydrolyze to silanol groups (Si-OH groups) and form siloxane groups (Si-O-Si groups) by subsequent condensation reactions.
- water is required for curing, it may either come from the air (humidity) or the composition may be contacted with a water-containing component, for example by painting, for example with a leveling agent, or by spraying, or
- a water-containing component can be added to the composition during application, for example in the form of a water-containing or water-releasing liquid or paste.
- a paste is particularly suitable in the event that the composition itself is in the form of a paste.
- the composition When cured by atmospheric moisture, the composition cures from the outside in, initially forming a skin on the surface of the composition.
- the so-called skinning time is a measure of the cure rate of the composition.
- the rate of cure is generally determined by various factors, such as the availability of water, temperature, etc.
- the composition is suitable for a multiplicity of applications, in particular as a paint, lacquer or primer, as a resin for producing fiber composite material, as hard foam, flexible foam, molded part, elastomer, fiber, foil or membrane, as potting compound, sealant, Adhesive, coating, coating or coating for construction and industrial applications, for example as seam sealing, cavity sealing, electrical insulation compound, filler, joint sealant, welding or flanging sealant, assembly adhesive, car body adhesive, window adhesive, sandwich element adhesive, laminating adhesive, laminate adhesive, packaging adhesive, wood adhesive, parquet adhesive, Anchoring adhesive, floor covering, floor coating, balcony coating, roof coating, concrete protection coating, parking garage coating, sealing, pipe coating, anticorrosion coating, textile coating, damping element, sealing element or putty knife.
- a paint, lacquer or primer as a resin for producing fiber composite material, as hard foam, flexible foam, molded part, elastomer, fiber, foil or membrane, as potting compound, sealant, Adhesive, coating, coating or
- composition is particularly suitable as an adhesive and / or sealant, in particular for joint sealing and elastic adhesive bonds in construction and industrial applications, or as an elastic coating with crack-bridging properties, in particular for protecting and / or sealing of, for example, roofs, floors, balconies, parking decks or concrete tubes.
- composition thus preferably represents an adhesive or a sealant or a coating.
- Such a composition typically contains fillers, plasticizers, drying agents, adhesion promoters and / or crosslinkers and optionally further auxiliaries and additives.
- the composition preferably has a pasty consistency with pseudoplastic properties.
- a pasty sealant or adhesive is in particular made of commercially available cartridges, which are operated manually, by means of compressed air or battery, or from a barrel or hobbock by means of a feed pump or an extruder, optionally applied by means of an application robot, to a substrate.
- the composition preferably has a consistency that is liquid at room temperature with self-leveling properties. If necessary, it is slightly thixotropic, so that the coating can be applied to inclined to vertical surfaces without immediately wegzuflies- sen. It is in particular applied by means of a roller or brush or by pouring and distributing by means of, for example, a roller, a scraper or a dental trowel.
- the composition is preferably applied to at least one substrate.
- Suitable substrates are in particular
- metals and alloys such as aluminum, iron, steel or non-ferrous metals, as well as surface-treated metals or alloys, such as galvanized or chromium-plated metals;
- resins for example phenolic, melamine or epoxy resins, bonded wood-based materials, resin-textile composites and other so-called polymer composites;
- Plastics such as polyvinyl chloride (hard and soft PVC), acrylonitrile-butadiene-styrene copolymers (ABS), polycarbonate (PC), polyamide (PA), polyester, poly (methyl methacrylate) (PMMA), epoxy resins, polyurethanes (PUR), polyoxymethylene (POM), polyolefins (PO), polyethylene (PE) or polypropylene (PP), ethylene / propylene copolymers (EPM) or ethylene / propylene / diene terpolymers (EPDM), or fiber-reinforced plastics such as Carbon fiber reinforced composite plastics (CFRP), glass fiber reinforced plastics (GRP) or sheet molding compounds (SMC), whereby the plastics may preferably be surface treated by means of plasma, corona or flame;
- CFRP Carbon fiber reinforced composite plastics
- GRP glass fiber reinforced plastics
- SMC sheet molding compounds
- coated substrates such as powder-coated metals; - paints or varnishes, in particular automotive topcoats, metal varnishes, furniture varnishes or wood varnishes.
- the substrates can be pretreated before applying the composition, in particular by physical and / or chemical cleaning methods or by the application of an adhesion promoter, a primer solution or a primer.
- compositions for contact with substrates which are particularly sensitive to disturbances by migrating substances, in particular by the formation of discolorations or stains.
- substrates which are particularly sensitive to disturbances by migrating substances, in particular by the formation of discolorations or stains.
- substrates which are particularly sensitive to disturbances by migrating substances, in particular by the formation of discolorations or stains.
- substrates which are particularly sensitive to disturbances by migrating substances, in particular by the formation of discolorations or stains.
- substrates which are particularly sensitive to disturbances by migrating substances, in particular by the formation of discolorations or stains.
- fine-pored substrates such as marble, limestone or other natural stones, gypsum, cement mortar or concrete, but also plastics.
- catalysts such as DBU or TMG strong discoloration is observed, which can not be removed by cleaning.
- Such effects are not observed with the guanidine of formula (I).
- Another object of the invention is thus a cured composition obtained from the described composition after its curing. From the application of the composition results in an article, which in particular was glued, sealed or coated with the composition.
- the article is in particular a building, in particular a building of civil engineering, an industrially manufactured good or a consumer good, in particular a window, a household machine or a means of transport such as in particular an automobile, a bus, a truck, a Rail vehicle, a ship, an airplane or a helicopter; or the article may be an attachment thereof.
- the curable composition is storable and easy to apply thanks to its low odor. After application, it builds surprisingly fast strength, with mechanically high-quality and durable materials. The composition does not tend to cause any migration-related defects, such as separation, exudation or substrate contamination, either before or after curing.
- standard climate refers to a temperature of 23 ⁇ 1 ° C and a relative humidity of 50 ⁇ 5%.
- FT-IR Infrared
- the skin formation time was determined by applying a few grams of the composition in a layer thickness of about 2 mm on cardboard and in the standard climate, the time was measured until the slightest tapping the surface of the composition by means of a pipette of LDPE for the first time no residues left more on the pipette. The condition of the surface was haptically tested.
- the mechanical properties of tensile strength, elongation at break and E modulus were determined according to DIN EN 53504 at a tensile speed of 200 mm / min. measured.
- DBU 8-diazabicyclo [5.4.0] undec-7-ene (Lupragen ® N 700, from BASF)
- TMG 1, 1, 3,3-tetramethylguanidine (from Sigma-Aldrich)
- compositions based on polymers containing silane groups Comparative examples are marked in Tables 1 to 4 with "(Ref)”.
- compositions Z1 to Z9 are Compositions Z1 to Z9:
- a composition of 97.6 g of polymer STP-1, 2.0 g of vinyltrimethoxysilane and 0.4 g of 3-aminopropyltrimethoxysilane was mixed with various catalysts in the stated amount according to Table 1 and the mixture viscosity at 25 ° C and skinning time (HBZ) under standard conditions, before and after storage, tested.
- the skinning time serves as a measure of the activity of the catalyst with respect to the crosslinking reaction of the silane groups, i. for the rate of crosslinking; the change in viscosity and skinning time after storage is a measure of the storage stability of the composition.
- the applied mixture was tested after 24 h in standard climate, whether the surface was dry as desired or a greasy film had formed, which is an indication of the exudation of the catalyst due to poor compatibility with the cured plastic, and / or whether the Surface was sticky, which is an indication of incomplete hardening. Furthermore, a film of 2 mm thickness was prepared from the mixture, cured for 7 days in standard climate and tested for mechanical properties.
- the guanidine G1 or G5 was previously liquefied at 60.degree.
- compositions Z10 to Z14 are Compositions Z10 to Z14:
- the thixotropic paste was prepared by placing 300 g of diisodecyl phthalate (Palatinol® Z, from BASF) and 48 g of 4,4'-methylenediphenyl diisocyanate (Desmodur® 44 MC L, from Covestro) in a vacuum mixer and gently warmed up, followed by vigorous stirring 27 g of n-butylamine were slowly added dropwise. The resulting paste was further stirred under vacuum and cooling for one hour.
- diisodecyl phthalate Palatinol® Z, from BASF
- Desmodur® 44 MC L 4,4'-methylenediphenyl diisocyanate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17162783 | 2017-03-24 | ||
| PCT/EP2018/056457 WO2018172168A1 (en) | 2017-03-24 | 2018-03-14 | Guanidine catalyst for curable compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3601217A1 true EP3601217A1 (en) | 2020-02-05 |
Family
ID=58428123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18709379.4A Withdrawn EP3601217A1 (en) | 2017-03-24 | 2018-03-14 | Guanidine catalyst for curable compositions |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20200048189A1 (en) |
| EP (1) | EP3601217A1 (en) |
| KR (1) | KR20190132994A (en) |
| CN (1) | CN110431131A (en) |
| WO (1) | WO2018172168A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4306595A1 (en) | 2022-06-30 | 2024-01-17 | Sika Technology AG | Moisture and radically curable silicone acrylate composition for cured-in-place gasketing |
| WO2025218529A1 (en) * | 2024-04-15 | 2025-10-23 | Basf Se | Dyeable polyurethane composition and method thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2714292A1 (en) * | 1977-03-31 | 1978-10-05 | Bayer Ag | POLYHYDROXYL COMPOUNDS CONTAINING GUANIDINE GROUPS |
| US4192925A (en) | 1977-03-31 | 1980-03-11 | Bayer Aktiengesellschaft | Polyhydroxyl compounds containing guanidine groups |
| ES2028359T3 (en) * | 1987-09-02 | 1992-07-01 | Ciba-Geigy Ag | PROCEDURE FOR OBTAINING OLIGOMER CYANOGUANIDINES. |
| US5352831A (en) * | 1987-09-02 | 1994-10-04 | Ciba-Geigy Corporation | Oligomeric cyanoguanidines |
| DE4237468A1 (en) | 1992-11-06 | 1994-05-11 | Bayer Ag | Compounds containing alkoxysilane and amino groups |
| JP4716043B2 (en) * | 2007-09-21 | 2011-07-06 | 信越化学工業株式会社 | Room temperature curable organopolysiloxane composition |
| FR2929286A1 (en) * | 2008-03-28 | 2009-10-02 | Bluestar Silicones France Soc | GUANIDINE-STRUCTURED COMPOUNDS AND THEIR USE AS ORGANOPOLYSILOXANE POLYCONDENSATION CATALYSTS |
| DE102013216787A1 (en) * | 2013-08-23 | 2015-02-26 | Evonik Degussa Gmbh | Guanidinruppen containing semi-organic silicon group-containing compounds |
| WO2015158859A2 (en) | 2014-04-16 | 2015-10-22 | Sika Technology Ag | Cross-linking catalyst with polyether structural units |
| JP6580590B2 (en) | 2014-04-16 | 2019-09-25 | シーカ・テクノロジー・アーゲー | Silanes containing amidine groups or guanidine groups |
| WO2015158860A1 (en) | 2014-04-16 | 2015-10-22 | Sika Technology Ag | Rapid-curing, migration-free composition based on polymers containing silane groups |
| KR20170034380A (en) * | 2014-06-16 | 2017-03-28 | 시카 테크놀러지 아게 | Cross-linking catalyst comprising siloxane structural units |
| CN107735438B (en) | 2015-05-11 | 2020-06-09 | Sika技术股份公司 | Guanidino-containing catalysts |
-
2018
- 2018-03-14 EP EP18709379.4A patent/EP3601217A1/en not_active Withdrawn
- 2018-03-14 CN CN201880019148.6A patent/CN110431131A/en active Pending
- 2018-03-14 US US16/492,976 patent/US20200048189A1/en not_active Abandoned
- 2018-03-14 KR KR1020197024909A patent/KR20190132994A/en not_active Ceased
- 2018-03-14 WO PCT/EP2018/056457 patent/WO2018172168A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190132994A (en) | 2019-11-29 |
| WO2018172168A1 (en) | 2018-09-27 |
| US20200048189A1 (en) | 2020-02-13 |
| CN110431131A (en) | 2019-11-08 |
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