Patent EP0268780A2 successfully refreshed from Google Patents.
EP0268780A2
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Curable composition containing a silicon functional organic polymer
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1987-09-29
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Granted: —
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Expires: 2007-09-29
Abstract
Abstract A curable composition comprising (A) an organic polymer containing at least one reactive silicon functional group crosslinkable to produce an elastomer by the formation of a siloxane bond in its molecule and (B) an organic silicon compound having a molecular weight of not less than 140 and represented by the formula (1): wherein R 1 is a residue of an alcohol or a weak acid which has a valency of n, and n is a positive integer. The composition of the invention can give a cured product having excellent modulus and elongation as well as has excellent storage stability.
Inventors
- 👤 Fumio Kawakubo
- 👤 Sadao Yukimoto
- 👤 Michihide Homma
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 16:37
CPC Classifications
C; C09; C09J; C09J201/00; C09J201/02; C09J201/10; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/336; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5415; C08K5/5419; C09J175/00; C09J175/04; Y; Y10; Y10S; Y10S525/00; Y10S525/912
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
77 words
A curable composition comprising (A) an organic polymer containing at least one reactive silicon functional group crosslinkable to produce an elastomer by the formation of a siloxane bond in its molecule and (B) an organic silicon compound having a molecular weight of not less than 140 and represented by the formula (1): wherein R I is a residue of an alcohol or a weak acid which has a valency of n, and n is a positive integer.
Claim 2
Dependent Claim
77 words
A curable composition comprising (A) an organic polymer containing at least one reactive silicon functional group crosslinkable to produce an elastomer by the formation of a siloxane bond in its molecule and (B) an organic silicon compound having a molecular weight of not less than 140 and represented by the formula (1): wherein R I is a residue of an alcohol or a weak acid which has a valency of n, and n is a positive integer.
Claim 3
Dependent Claim
25 words
The composition of Claim 1, wherein the weight ratio of said organic polymer (A) to said organic silicon compoud (B) is from 100/0.1 to 100/10.
Claim 4
Dependent Claim
41 words
The composition of Claim 1, wherein said organic polymer (A) is an alkylene oxide polymer whose main chain consists essentially of recurring units represented by the formula: wherein R 2 is a bivalent hydrocarbon group having 1 to 8 carbon atoms.
Claim 5
Dependent Claim
21 words
The composition of Claim 1, wherein the number average molecular weight of said organic polymer (A) is from 300 to 30,000.
Claim 6
Dependent Claim
32 words
The composition of Claim 1, wherein said organic polymer (A) is a polymer whose main chain consists essentially of a propylene oxide and which has a molecular weight of 500 to 15,000.
Claim 7
Dependent Claim
158 words
The composition of Claim 1, wherein said reactive silicon functional group is a group represented by the formula (2): wherein R 3 is a monovalent hydrocarbon group having 1 to 20 carbon atoms selected from the group consisting of an alkyl group, an aryl group and an aralkyl group or a triorganosiloxy group represented by the formula (3): in which each R 4 is a monovalent hydrocarbon group having 1 to 20 carbon atoms, and when more than one R 3 are present, the groups R 3 are the same or different; X is a hydroxyl group or a hydrolyzable group, and when more than one X are present, the groups X are the same or different; a is 0 or an integer of 1 to 3 and b is 0, 1 or 2, provided that at least one X is present in the silicon functional group; and m is 0 or an integer of 1 to 18.
Claim 8
Dependent Claim
122 words
The composition of Claim 1, wherein said reactive silicon functional group is a group represented by the formula (4): wherein R 3 is a group having 1 to 20 carbon atoms selected from the group consisting of an alkyl group, an aryl group and an aralkyl group or a triorganosiloxy group represented by the formula (3): in which each R 4 is a monovalent hydrocarbon group having 1 to 20 carbon atoms, and when more than one R 3 are present, the groups R 3 are the same or different; X is a hydroxyl group or a hydrolyzable group, and when more than one X are present, the groups X are the same or different; and a is 0, 1 or 2.
Claim 9
Dependent Claim
13 words
The composition of Claim 6, wherein the group X is a methoxy group.
Claim 10
Dependent Claim
20 words
The composition of Oaim 1. wherein the molecular weight of said organic silicon compound (B) is not less than 150.
Claim 11
Dependent Claim
20 words
The composition of Oaim 1. wherein the molecular weight of said organic silicon compound (B) is not less than 150.
Claim 12
Dependent Claim
18 words
The composition of Claim 1, wherein said organic silicon compound (B) is a compound represented by the formula:
References Cited (Backward Citations)
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