EP2081978A1 - Abformmassen - Google Patents
AbformmassenInfo
- Publication number
- EP2081978A1 EP2081978A1 EP07846770A EP07846770A EP2081978A1 EP 2081978 A1 EP2081978 A1 EP 2081978A1 EP 07846770 A EP07846770 A EP 07846770A EP 07846770 A EP07846770 A EP 07846770A EP 2081978 A1 EP2081978 A1 EP 2081978A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nco
- silane
- groups
- terminated polyether
- mmol
- 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- Withdrawn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 25
- 229920000570 polyether Polymers 0.000 claims abstract description 52
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 12
- 125000003277 amino group Chemical group 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 239000003054 catalyst Substances 0.000 claims description 20
- 229920005862 polyol Polymers 0.000 claims description 16
- 150000003077 polyols Chemical class 0.000 claims description 16
- -1 ayryl Chemical group 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 150000003606 tin compounds Chemical class 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 239000012948 isocyanate Substances 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 6
- 125000005442 diisocyanate group Chemical group 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- 150000002513 isocyanates Chemical class 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- XFEWMFDVBLLXFE-UHFFFAOYSA-N 1-isocyanatodecane Chemical compound CCCCCCCCCCN=C=O XFEWMFDVBLLXFE-UHFFFAOYSA-N 0.000 claims description 2
- 101100317036 Mus musculus Vsir gene Proteins 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- VNTDZUDTQCZFKN-UHFFFAOYSA-L zinc 2,2-dimethyloctanoate Chemical compound [Zn++].CCCCCCC(C)(C)C([O-])=O.CCCCCCC(C)(C)C([O-])=O VNTDZUDTQCZFKN-UHFFFAOYSA-L 0.000 claims description 2
- NHXVNEDMKGDNPR-UHFFFAOYSA-N zinc;pentane-2,4-dione Chemical compound [Zn+2].CC(=O)[CH-]C(C)=O.CC(=O)[CH-]C(C)=O NHXVNEDMKGDNPR-UHFFFAOYSA-N 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims 2
- 230000003197 catalytic effect Effects 0.000 claims 1
- 229960001860 salicylate Drugs 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims 1
- 150000003751 zinc Chemical class 0.000 claims 1
- 150000001412 amines Chemical class 0.000 description 37
- 238000003860 storage Methods 0.000 description 10
- 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 8
- 239000005058 Isophorone diisocyanate Substances 0.000 description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- 239000002978 dental impression material Substances 0.000 description 6
- 239000005056 polyisocyanate Substances 0.000 description 6
- 229920001228 polyisocyanate Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 150000002924 oxiranes Chemical class 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001451 polypropylene glycol Polymers 0.000 description 3
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- 229920000909 polytetrahydrofuran Polymers 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 2
- 239000004246 zinc acetate Substances 0.000 description 2
- 229960000314 zinc acetate Drugs 0.000 description 2
- PJLLNWQQWBMNHM-UHFFFAOYSA-L zinc;2,3-ditert-butyl-6-carboxyphenolate Chemical compound [Zn+2].CC(C)(C)C1=CC=C(C(O)=O)C([O-])=C1C(C)(C)C.CC(C)(C)C1=CC=C(C(O)=O)C([O-])=C1C(C)(C)C PJLLNWQQWBMNHM-UHFFFAOYSA-L 0.000 description 2
- GFNDFCFPJQPVQL-UHFFFAOYSA-N 1,12-diisocyanatododecane Chemical compound O=C=NCCCCCCCCCCCCN=C=O GFNDFCFPJQPVQL-UHFFFAOYSA-N 0.000 description 1
- PKQYSCBUFZOAPE-UHFFFAOYSA-N 1,2-dibenzyl-3-methylbenzene Chemical compound C=1C=CC=CC=1CC=1C(C)=CC=CC=1CC1=CC=CC=C1 PKQYSCBUFZOAPE-UHFFFAOYSA-N 0.000 description 1
- ZTNJGMFHJYGMDR-UHFFFAOYSA-N 1,2-diisocyanatoethane Chemical compound O=C=NCCN=C=O ZTNJGMFHJYGMDR-UHFFFAOYSA-N 0.000 description 1
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 1
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 1
- YIDSTEJLDQMWBR-UHFFFAOYSA-N 1-isocyanatododecane Chemical compound CCCCCCCCCCCCN=C=O YIDSTEJLDQMWBR-UHFFFAOYSA-N 0.000 description 1
- DYQFCTCUULUMTQ-UHFFFAOYSA-N 1-isocyanatooctane Chemical compound CCCCCCCCN=C=O DYQFCTCUULUMTQ-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- CANRESZKMUPMAE-UHFFFAOYSA-L Zinc lactate Chemical compound [Zn+2].CC(O)C([O-])=O.CC(O)C([O-])=O CANRESZKMUPMAE-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 235000019589 hardness Nutrition 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- VETNRBRIHYFKBD-UHFFFAOYSA-N tert-butyl 2-hydroxybenzoate;zinc Chemical compound [Zn].CC(C)(C)OC(=O)C1=CC=CC=C1O VETNRBRIHYFKBD-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- GAAKLDANOSASAM-UHFFFAOYSA-N undec-10-enoic acid;zinc Chemical compound [Zn].OC(=O)CCCCCCCCC=C GAAKLDANOSASAM-UHFFFAOYSA-N 0.000 description 1
- 229940050168 zinc lactate Drugs 0.000 description 1
- 239000011576 zinc lactate Substances 0.000 description 1
- 235000000193 zinc lactate Nutrition 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- 229940057977 zinc stearate Drugs 0.000 description 1
- 229940118257 zinc undecylenate Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy 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
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
- C08G65/33348—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing isocyanate group
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
Definitions
- the present invention relates to molding compositions based on polyether derivatives, a process for their preparation and their use.
- Polyether derivative-based impression materials used in the dental field have long been known.
- pastes are used whose components comprise, for example, polyether polyols, polyisocyanates and aminosiloxanes, as well as fillers and other auxiliaries.
- the crosslinking of the masses takes place, for example, by the hydrolysis of alkoxy-silane groups by ambient or deliberately added moisture and subsequent crosslinking to form siloxane groups.
- EP-A 0 269 819 mentions a pleasant taste and odor, aesthetic appearance, good storage stability, good handleability, precision of the impressions, useful hardening characteristics and dimensionally stable shaped bodies under ambient conditions. Furthermore, such compositions must not contain any irritating or toxic components. Cured masses must of course have a good compression set behavior and preferably have no hysteresis under tensile stress. In addition, they must be economically advantageous to produce.
- EP-A 1 245 601 and EP-A 0 269 819 The closest prior art is disclosed in EP-A 1 245 601 and EP-A 0 269 819.
- EP-A 1 245 601 the preparation of an NCO prepolymer from a polyol and an aliphatic, cycloaliphatic or aromatic polyisocyanate is first described, characterized in that one waives any metal catalysis. This also applies to the second stage of the reaction of this NCO prepolymer with secondary amine-terminated aminoalkylalkoxysilane.
- Dibutyltin dilaurate catalysis undergo long-lasting and therefore uneconomical phases, during which free amine is present alongside free isocyanate.
- free isocyanate be it aromatic or aliphatic in nature, is, of course, basically just as unacceptable in dental applications as is an excess of aminosiloxane exceeding an absolute minimum.
- free isocyanates are also unacceptable because, over time, e.g. After compounding with additives and auxiliaries, would continue to react slowly, whereby the consistency of the pastes changed slowly and thus the storage stability could not be guaranteed.
- EP-A 0 269 819 does not describe whether and, if appropriate, which type of catalysts are to be used advantageously for the reaction of the NCO groups.
- EP-A 0 269 819 does not describe whether and, if appropriate, which type of catalysts are to be used advantageously for the reaction of the NCO groups.
- tin octoate is used in two embodiments.
- tin compounds cause the problem of corrosion effects when stored in certain packaging materials such as aluminum tubes or tubular bags based on aluminum.
- toxicological concerns have recently been voiced against organotin compounds in recent years.
- EP-A 0 269 819 teaches that preferably those polyethers are used which have predominantly, ie up to 90%, primary OH end groups based on all OH end groups.
- the only polyether polyols of economic relevance are, in addition to the polytetrahydrofurans, those which are prepared from ethylene oxide and / or propylene oxide.
- Polytetrahydrofurans are less suitable for dental applications because they have a phase transition in the region of room temperature, which leads to the fact that the flow and thus the processing properties are undesirably strongly temperature-dependent in the range of the application temperature.
- this impression system must be economical to manufacture and meet all the above-mentioned requirements of dental impression materials.
- the invention therefore provides silane-terminated polyether derivatives obtainable by reaction of
- R is hydrogen or - (CH 2 VSiRiR 2 R 3 , n is an integer from 1 to 6 and at least one of the groups R 1 , R 2 , R 3 has the structure (-OC p H 2p ) q -OR 4,
- R 4 represents a substituent selected from the group comprising alkyl, ayryl, arylaklyl, vinyl or vinylcarbonyl
- R 1 , R 2 , R 3 are alkoxy radicals having 1 to 4 C atoms
- the NCO value is less than 0.001 wt .-% NCO and the proportion of free amino groups in the range of 0.5 to 50 mmol, preferably 1 to
- Another object of the invention is a process for the preparation of silane-terminated polyether derivatives, characterized in that
- R is hydrogen or - (CH 2 VSiR 1 R 2 R 3 , n is an integer from 1 to 6 and at least one of the groups R 1 , R 2 , R 3 has the structure (-O-CpH 2p ) q -OR 4 .
- R 4 represents a substituent selected from the group comprising alkyl, ayryl, arylaklyl, vinyl or vinylcarbonyl
- R 1 , R 2 , R 3 are alkoxy radicals having 1 to 4 C atoms
- the NCO value is less than 0.001 wt .-% NCO and the proportion of free amino groups in the range of 0.5 to 50 mmol, preferably 1 to
- substantially linear polyether polyols having more than 80% secondary OH groups with the aid of zinc catalysts are reacted in a first reaction step by reaction with aliphatic polyisocyanates to give a prepolymer having an NCO group. Content of 0.5 to 6 wt .-% NCO, preferably 1 to 4% by weight of NCO reacted.
- Substantially linear polyether polyols having more than 80% secondary OH groups are those polyols which are prepared by ring-opening polymerization from epoxides, eg ethylene and propylene oxide, preferably entirely or predominantly propylene oxide, with the aid of, for example, KOH or double metal catalysts (DMC) as catalysts, using reactive hydrogen atoms starters from the group of polyalcohols and polyamines, and water.
- These substantially linear polyether polyols are those having a hydroxy functionality of from 1.95 to 2.3, preferably from 1.96 to 2.06. Preference is given to divalent starters, such as, for example, ethylene glycol, 1,2-propylene glycol,
- Starters according to the invention also comprise mixtures of a plurality of starters, wherein the starter mixtures are composed so that polyether polyols having an OH functionality of not more than 2.5 are formed, preferably not more than 2.2.
- polymerization can be carried out either in blocks or mixed. However, preference is given to the use of only one epoxide, particularly preferably propylene oxide, and also mixtures of two epoxides, the mixtures consisting predominantly of propylene oxide.
- Polyether polyols according to the invention are further characterized in that they have number-average molecular weights of 150 to 20,000 Da, preferably 500 to 6500 Da, more preferably 800 to 5500. Of course, mixtures of at least two polyether polyols can be used advantageously, in which case the number average molecular weight of Mixture in the prescribed range is.
- aliphatic polyisocyanates are 4,4'-methylenebis (cyclohexyl isocyanate), ethylene diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, cyclobutane-1,3-diisocyanate, cyclohexane-1,3-diisocyanate, cyclohexane 1,4-diisocyanate or 1-isocyanato, 3,3,5-trimethyl-5-isocyanatomethylcyclohexane (isophorone diisocyanate, IPDI). They may be used singly or in admixture, but particularly preferred is IPDI.
- the polyethers according to the invention are prepared in a first reaction stage with polyisocyanates according to the prior art at temperatures in the range of 60 to 150 ° C., preferably 80 to 110 ° C., preferably using a protective gas, more preferably nitrogen, at atmospheric pressure to reduced pressure, preferably normal pressure, converted to NCO prepolymers, wherein a solvent inert to NCO groups can be used, but preferably is carried out without a solvent.
- a protective gas more preferably nitrogen
- reduced pressure preferably normal pressure
- catalysts are used according to the invention.
- Preferred catalysts are characterized in that the silane-terminated polyether derivatives have maximum amounts of 5 ppm tin compound. Preference is given to the use of catalysts which have wholly or predominantly zinc as the metal atom. Examples of catalysts according to the invention are zinc acetate, zinc acetate, zinc lactate, zinc stearate, zinc undecylenate
- Zinc di-tert-butylsalicylate, zinc acetylacetonate and zinc neodecanoate are advantageously used in amounts of 0.5 to 10 mg Zn / kg prepolymer.
- the prepolymers of the invention have NCO contents of 0.5 to 6 wt .-% NCO, preferably 1 to 4 wt .-% NCO.
- the prepolymer formation is considered complete when the practically determined NCO content reaches the theoretically calculated NCO value.
- the NCO prepolymers according to the invention are then reacted in a second reaction stage with alkoxysilylmonoamines.
- alkoxysilylmonoamines Suitable Alkoxysüylmono- amines are known. Examples are the technically readily available ⁇ -aminopropyl-tri-C t -Ci-alkoxysilane or bis (3-Ci-C 4 -alkoxysilylpropyl) amines, such as ⁇ -aminopropyltrimethoxysilane and ⁇ -Arninopropyltriethoxysilan.
- the reaction of NCO prepolymer and alkoxysilylmonoamine to give reactive silane-terminated polyether derivatives is carried out in such a way that in the silane terminated polyether derivative no NCO is more detectable and the proportion of free amino groups in the range of 0.5 to 50 mmol, preferably 1 to 15, more preferably 0.5 to 5 mmol of amine groups per kg of silane-terminated polyether derivatives.
- these specifications are preferably achieved by initially setting a stoichiometric excess of alkoxysilylmonoamine which is mathematically suitable for setting the NCO value to 0 and the amine value to a value of preferably 0.5 to 5 mmol per kg of silane-terminated polyether derivative, at elevated temperatures Temperature, preferably at least 50 ° C, stirred and allowed to react. Both free amine and free isocyanate are found at this stage of the reaction.
- the amine and the NCO content is determined hourly. The conversion is deemed terminated when one of the values from two consecutive measurements is unchanged. If the amine value is in the desired range and at the same time the NCO value is 0, the product is ready. If the amine value is zero and the NCO value is> 0, an amount of alkoxysilylmonoamine sufficient to raise the amine value within a range of 0.5 to 5 mmol of amine groups per kg is added.
- the state of a silane-terminated polyether derivative having an NCO value of zero and an amine value in the range from 0.5 to 5 mmol of amine groups per kg of silane-terminated polyether derivative is achieved by initially using a superstoichiometric amount of alkoxysilylmonoamine if necessary, by adding the same, the amine group content to values greater than 2 mmol of amine groups per kg of polyurethane mass, particularly preferably 2 to 5 mmol of amine groups per kg of polyurethane composition sets constant and that this over 2 mmol value by adding a stoichiometric relative to the amine groups amount of an aliphatic isocyanate, preferably monoisocyanate having at least 2 carbon atoms, preferably at least 6 carbon atoms, such as 1 -n-Ocylisocyanat, 1-n-decyl isocyanate, 1-n-dodecyl isocyanate or 1-stearyl is
- impression materials of the invention based on silane-terminated polyether derivatives are, in order to bring them into an administrable form, provided according to the prior art with other auxiliaries and additives.
- Examples include: fillers, dyes, pigments, thickeners, surfactants, odors and flavorings, and thinners.
- Dental impression materials according to the invention are preferably offered as two-component systems, one component containing the silane-terminated polyether derivatives and optionally further auxiliaries and additives and the other component water, one or more acidic components and optionally auxiliaries and additives. It is surprising that
- silane-terminated poly-ether derivatives prepared under Zn catalysis have a molecular weight distribution comparable to those of silane-terminated polyether derivatives which have been prepared by catalysis of tin compounds and have tin compound contents of> 5 ppm;
- silane-terminated polyether derivatives according to the invention molding compounds that meet the basic requirements for impression materials and not differ significantly in their physical and application properties profile of the compositions of the prior art with levels of tin compounds> 5 ppm.
- Example 1 (according to the invention): Preparation of the polyurethane compositions
- NCO content of the NCO prepolymer was determined to be 1.20% by weight of NCO (theoretical) : 1.28% by weight) was allowed to cool to 40 ° C and again determined the NCO content (1.20 wt .-% NCO).
- Dynasilan Ameo ® (Degussa AG adhesive TP 3023) were incubated at 40 0 C is stirred in. After 2 hours and after 3 hours, the proportion of free amine was determined to be 0.5 mmol amine / kg. An additional 1 g Dynasilan Ameo was stirred in, the amine content being determined after 2 hours and after 3 hours to 0.4 mmol amine / kg.
- the NCO value at this time was determined to be 0 wt% NCO.
- the amine content determined after a further 24 hours was constant at 1.8 mmol amine / kg.
- Example 2 The same procedure was used as in Example 1, but instead of Zn-tert-butyl-salicylate, 150 mg of dibutyltin dilaurate were added as catalyst. After stirring at 100 ° C. for 2 hours, the NCO content of the NCO prepolymer was determined to be 1.25% by weight of NCO (theoretical: 1.28% by weight). The mixture was allowed to cool to 40 ° C. and again determined the NCO content (1.25% by weight).
- Example 2 The same procedure was used as in Example 1, but instead of zinc tert-butyl salicylate, 150 mg of dibutyltin dilaurate were added as catalyst. After stirring for 2 hours at 100 ° C., the NCO content of the NCO prepolymer was determined to be 1.82% by weight of NCO (theoretical: 1.89% by weight). The mixture was allowed to cool to 40 0 C and again determined the NCO content (1.82 wt .-% NCO).
- silane-terminated polyether derivatives used according to the invention are distinguished by a similar or lower viscosity change and thus by a comparable or higher storage stability:
- Table 1 shows that, according to the invention, it is possible to obtain systems whose storage stabilities are at least equally superior to those conventionally catalyzed on prolonged storage.
- silane-terminated polyether derivatives 20 parts by weight with 20 parts by weight of dibenzyltoluene, 56 parts by weight of quartz flour and 4 parts by weight hydrogenated castor oil for 3 h at a pressure ⁇ 50 mbar to a homogeneous pasty mass mixed.
- the various base components were mixed with the catalyst component in a weight ratio of 5: 1.
- Working times according to DIN EN ISO 4823
- hardnesses according to Shore A according to DIN 5305
- tear strengths according to DIN 53504
- the compositions according to the invention in each case matched the property profile of the tin-catalyzed compounds.
- the tin-free impression materials according to the invention fulfill the essential requirements for dental impression materials (according to ISO 4823).
- Table 2 Formulations for the preparation of dental impression materials and evaluation of important properties
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006055739A DE102006055739A1 (de) | 2006-11-25 | 2006-11-25 | Abformmassen |
| PCT/EP2007/010169 WO2008061774A1 (de) | 2006-11-25 | 2007-11-23 | Abformmassen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2081978A1 true EP2081978A1 (de) | 2009-07-29 |
Family
ID=39089257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07846770A Withdrawn EP2081978A1 (de) | 2006-11-25 | 2007-11-23 | Abformmassen |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US20080146695A1 (de) |
| EP (1) | EP2081978A1 (de) |
| CA (1) | CA2670203A1 (de) |
| DE (1) | DE102006055739A1 (de) |
| WO (2) | WO2008061651A1 (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2925511A1 (fr) * | 2007-12-20 | 2009-06-26 | Bluestar Silicones France Soc | Composition organopolysiloxanique vulcanisable a temperature ambiante en elastomere et nouveaux catalyseurs de polycondensation d'organopolysiloxanes. |
| WO2010010026A2 (de) * | 2008-07-23 | 2010-01-28 | Construction Research & Technology Gmbh | Verfahren zur herstellung von metallnanopartikeln in polyolen |
| BRPI0917029A2 (pt) * | 2008-08-08 | 2016-02-16 | Constr Res & Tech Gmbh | preparo de poliuretanos e/ou poliureias sililadas |
| US20110232825A1 (en) | 2008-12-05 | 2011-09-29 | Basf Se | Cyclohexane polycarboxylic acid derivatives as plasticizers for adhesives and sealants |
| JP2013510200A (ja) | 2009-11-05 | 2013-03-21 | ビーエーエスエフ ソシエタス・ヨーロピア | 2−プロピルヘプタノールを基礎とするエステルを含有する接着剤およびシーラント |
| US8791185B2 (en) | 2010-06-21 | 2014-07-29 | Basf Se | 2-ethylhexyl methyl terephthalate as plasticizer in adhesives and sealants |
| EP2582765B1 (de) | 2010-06-21 | 2014-10-15 | Basf Se | 2-ethylhexyl-methyl-terephthalat als weichmacher in kleb- und dichtstoffen |
| EP2588246A1 (de) | 2010-06-29 | 2013-05-08 | Construction Research & Technology GmbH | Verfahren zur herstellung eines thixotropiermittels und dessen verwendung |
| US9068103B2 (en) * | 2011-02-03 | 2015-06-30 | Carroll Benford Dickens | Waterproof silane-endcapped adhesive mixture |
| US10308847B1 (en) | 2011-02-03 | 2019-06-04 | Carroll Benford Dickens | Pressure sensitive, waterproof adhesive compositions |
| US10161140B1 (en) | 2011-02-03 | 2018-12-25 | Carroll Benford Dickens | Polymeric primer compositions and methods of use in flooring applications to displace gases |
| US9822288B2 (en) | 2011-02-03 | 2017-11-21 | Carroll Benford Dickens | Waterproof silane-end capped adhesive compositions |
| WO2013092501A1 (de) | 2011-12-20 | 2013-06-27 | Bayer Intellectual Property Gmbh | Hydroxy-aminopolymere und verfahren zu deren herstellung |
| RU2635148C2 (ru) * | 2012-03-31 | 2017-11-09 | Конинклейке Филипс Н.В. | Устройство и способ очистки жидкости |
| CN108329478A (zh) * | 2018-02-02 | 2018-07-27 | 无锡龙驰氟硅新材料有限公司 | 一种硅烷封端ms树脂及其制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1745526B2 (de) * | 1967-03-16 | 1980-04-10 | Union Carbide Corp., New York, N.Y. (V.St.A.) | Verfahren zur Herstellung vulkanisierbarer, unter wasserfreien Bedingungen beständiger Polymerisate |
| US4374237A (en) * | 1981-12-21 | 1983-02-15 | Union Carbide Corporation | Silane-containing isocyanate-terminated polyurethane polymers |
| DE3426987A1 (de) * | 1984-07-21 | 1986-01-30 | Schering AG, 1000 Berlin und 4709 Bergkamen | Verfahren zur herstellung von unter feuchtigkeitsausschluss lagerstabilen kunstharzmassen und deren verwendung |
| DE3636974A1 (de) * | 1986-10-30 | 1988-05-05 | Bayer Ag | Poly-(ether-urethan-harnstoff)polyadditionsprodukte, ihre herstellung, abmischung enthaltend diese sowie ihre verwendung als abformmassen |
| DE4307024A1 (de) * | 1993-03-05 | 1994-09-08 | Muehlbauer Ernst Kg | Kunststoffe mit einem Gehalt an Silan-, Ether-, Urethan- und Harnstoffgruppen |
| US5587448A (en) * | 1994-12-29 | 1996-12-24 | Minnesota Mining And Manufacturing | Reaction system for producing a polyurethane and method of using same to seal a surface |
| US5976669A (en) * | 1996-12-20 | 1999-11-02 | 3M Innovative Properties Company | Retroreflective article having launderably durable bead-bond |
| DE19914879A1 (de) * | 1999-04-01 | 2000-10-05 | Bayer Ag | Polyurethanlösungen mit Alkoxysilanstruktureinheiten |
| DE19942467A1 (de) * | 1999-09-06 | 2001-04-26 | Heraeus Kulzer Gmbh & Co Kg | Bei Raumtemperatur aushärtende Silicon-Masse II und ihre Verwendung |
| JP4520003B2 (ja) * | 2000-04-14 | 2010-08-04 | 株式会社カネカ | 硬化性組成物 |
| DE10104079B4 (de) * | 2001-01-29 | 2008-05-08 | Heraeus Kulzer Gmbh | Verwendung von Mischungen als Abform- oder Dubliermassen im Dentalbereich |
| US6884828B2 (en) * | 2001-01-29 | 2005-04-26 | Heraeus Kulzer Gmbh & Co.Kg | Use of mixtures as impression or doubling compositions in the dental area |
| DE10115698A1 (de) * | 2001-03-29 | 2002-10-10 | Degussa | Metallfreie silanterminierte Polyurethane, ein Verfahren zu deren Herstellung und deren Anwendung |
| DE10226926A1 (de) * | 2002-06-17 | 2004-02-05 | Bayer Ag | Blockierte Polyisocyanate |
| DE10201703A1 (de) * | 2002-01-17 | 2003-08-07 | Consortium Elektrochem Ind | Alkoxysilanterminierte Polymere enthaltende vernetzbare Polymerabmischungen |
| US20030225237A1 (en) * | 2002-05-31 | 2003-12-04 | Roesler Richard R. | Moisture-curable, polyether urethanes with reactive silane groups and their use as sealants, adhesives and coatings |
| DE10244693A1 (de) * | 2002-09-24 | 2004-04-01 | Heraeus Kulzer Gmbh & Co. Kg | Zweikomponentige Zubereitung |
| DE10355318A1 (de) * | 2003-11-27 | 2005-06-23 | Wacker-Chemie Gmbh | Verfahren zur Herstellung von organyloxysilylterminierten Polymeren |
| DE502005006995D1 (de) * | 2004-02-13 | 2009-05-14 | Kettenbach Gmbh & Co Kg | Dentalmaterial auf basis von alkoxysilylfunktionellen polyethern |
| US8232362B2 (en) * | 2005-09-15 | 2012-07-31 | Momentive Performance Materials Inc. | Preparation of amino-silane terminated polymer by using organic bismuth catalyst and cured polymer therefrom by using non-tin catalyst |
-
2006
- 2006-11-25 DE DE102006055739A patent/DE102006055739A1/de not_active Withdrawn
-
2007
- 2007-11-13 WO PCT/EP2007/009794 patent/WO2008061651A1/de not_active Ceased
- 2007-11-20 US US11/986,146 patent/US20080146695A1/en not_active Abandoned
- 2007-11-23 US US12/515,775 patent/US20100022739A1/en not_active Abandoned
- 2007-11-23 CA CA002670203A patent/CA2670203A1/en not_active Abandoned
- 2007-11-23 WO PCT/EP2007/010169 patent/WO2008061774A1/de not_active Ceased
- 2007-11-23 EP EP07846770A patent/EP2081978A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008061774A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006055739A1 (de) | 2008-05-29 |
| US20080146695A1 (en) | 2008-06-19 |
| US20100022739A1 (en) | 2010-01-28 |
| WO2008061651A1 (de) | 2008-05-29 |
| CA2670203A1 (en) | 2008-05-29 |
| WO2008061774A1 (de) | 2008-05-29 |
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