EP0158893A1
Expired / Lapsed
EP
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Silane containing isocyanate prepolymers
Assignee: Union Carbide Corp
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Filing: 1985-03-28
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Granted: —
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Expires: 2005-03-28
Abstract
Abstract Isocyanate containing prepolymers partially end-capped with organo-functional silanes have been prepared which contain diols, polyols and diisocyanates. These prepolymers are useful as precursors of urethane polymers and can be made as moisture curable one component urethane or two package urethanes.
Inventors
- 👤 Sui-Wu Chow
- 👤 Donald Foss Smith, Jr.
- 👤 Peter William Kopf
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 16:19
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/12; C08G18/28; C08G18/40; C08G18/4009; C08G18/4063; C08G18/65; C08G18/6505; C08G18/6511; C08G18/67; C08G18/671; C08G18/672
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
A curable composition comprising isocyanate terminated reaction products of organic polyols, diols, and diisocyanates which have been end-capped with organo-functional silanes having the general formula: wherein Q is a group selected from the group consisting of wherein R is a monovalent radical selected from the group consisting of hydrogen, alkyl, aryl, aralkyl. alkaryl, or where R'' and R''' are lower alkyl groups containing from 1 to about 4-carbon atoms; R' is an alkylene radical containing from 2 to about 18 carbon atoms: a is an integer having values of 0. 1 or 2: said polyols are organic polymers having an average hydroxyl functionality <6; and said diols are alkylene glycols or glycol ethers and lactone diols.
Claim 2
Dependent Claim
116 words
A curable composition comprising isocyanate terminated reaction products of organic polyols, diols, and diisocyanates which have been end-capped with organo-functional silanes having the general formula: wherein Q is a group selected from the group consisting of wherein R is a monovalent radical selected from the group consisting of hydrogen, alkyl, aryl, aralkyl. alkaryl, or where R'' and R''' are lower alkyl groups containing from 1 to about 4-carbon atoms; R' is an alkylene radical containing from 2 to about 18 carbon atoms: a is an integer having values of 0. 1 or 2: said polyols are organic polymers having an average hydroxyl functionality <6; and said diols are alkylene glycols or glycol ethers and lactone diols.
Claim 3
Dependent Claim
27 words
Composition claimed in claim 1 wherein, the organofunctionalsilane is an aminosilane having the general formula wherein R. R'. R" and R''' are defined as in claim 1.
Claim 4
Dependent Claim
29 words
Composition claimed in claim 2 wherein the aminosilane is a N,N-bis(trialkoxysilylalkyl)amine, having 1 to about 4 carbons in the trialkoxy and alkyl moieties. e.g. N,N-bis(trimethoxysilylpropyl)amine, N,N-bis(triethoxy- silylpropyl)amine or N,N-bis(tripropoxysilylpropyl)-amine.
Claim 5
Dependent Claim
61 words
Composition claimed in one or more of the claims 1-3 wherein the organic polyol is a terpolymer of vinyl chloride, vinyl acetate and an hydroxyalkyl acrylate or methacrylate having 2 to 4 carbons in the alkyl group or a terpolymer of vinyl chloride, vinyl acetate and vinyl alcohol, said terpolymer being the partial hydrolysis product of a vinyl chloride-vinyl acetate copolymer.
Claim 6
Dependent Claim
36 words
The composition claimed in one or more of the claims 1-3 wherein the polyol is a composition prepared by the polymerization of a mixture of acrylic monomers one of which is an hydroxyl containing acrylic monomer.
Claim 7
Dependent Claim
63 words
6 . A composition claimed in claim 5 wherein the polyol is a terpolymer of methyl methacrylate. butyl acrylate and a hydroxyl containing acrylate selected from the group consisting of hydroxy-ethyl acrylate. hydroxypropylacrylate and a caprolactone oligomer prepared using hydroxyethyl acrylate as the initiator, said caprolactone oligomer having the structure: wherein n is an integer having values of from 1 to about 10.
Claim 8
Dependent Claim
69 words
The composition claimed in one or more of the claims 1-3 wherein the polyol is a composition obtained by polymerization of a mixture of styrene, acrylic monomers and a hydroxyl containing acrylic monomer selected from hydroxyethyl acrylate, hydroxypropyl acrylate and a caprolactone oligomer prepared using hydroxyethyl acrylate as the initiator, said oligomer having the structure: - wherein n is an integer having values of from 1 to about 10.
Claim 9
Dependent Claim
23 words
The composition claimed in one or more of the claims 1-3 wherein the polyol is a reaction product of trimethylol propane and epsilon-caprolactone.
Claim 10
Dependent Claim
29 words
The composition claimed in one or more of the claims 1-8 wherein the diol is an epsilon-caprolactone polymer or a mixture of an alkylene diol and an epsilon-caprolactone polymer.
Claim 11
Dependent Claim
13 words
The composition claimed in claim 1 wherein the aminosilane is gamma-aminopropyltrimethoxysilane and bis(3-trimethoxysilylpropyl)amine.
References Cited (Backward Citations)
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