US4952643A
Expired / Lapsed
US
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Curable polymer composition
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1990-01-29
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Granted: 1990-08-28
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Expires: 2010-01-29
Abstract
Abstract A curable polymer composition comprising: (A) an organic elastomeric polymer having, in a molecule, at least one silicon-containing group which is cross linkable through formation of a siloxane bond and (B) an epoxy resin which has been cured which is easily handled and affords a cured product having improved strength.
Inventors
- 👤 Toshifumi Hirose
- 👤 Kawakubo Kawakubo
- 👤 Katsuhiko Isayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
C; C08; C08L; C08L63/00; C08L101/00; C08L101/02; C08L101/10; C08L43/00; C08L43/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A curable polymer composition comprising: (A) an organic elastomeric polymer having, in a molecule, at least one silicon-containing group which is cross linkable through formation of a siloxane bond, said organic elastomeric polymer being selected from the group consisting of a polyether which includes repeating units of the formula --R--O-- in which R is a divalent alkylene group having 2 to 4 carbon atoms and a graft copolymer produced by polymerizing a vinyl monomer in the presence of said polyether, and (B) an epoxy resin which has been cured with a curing agent in the presence of a solvent in which an uncured epoxy resin and the curing agent can be dissolved, and wherein the cured epoxy resin is insolubilized to precipitate in the form of fine powder.
Claim 2
Dependent Claim
128 words
A curable polymer composition comprising: (A) an organic elastomeric polymer having, in a molecule, at least one silicon-containing group which is cross linkable through formation of a siloxane bond, said organic elastomeric polymer being selected from the group consisting of a polyether which includes repeating units of the formula --R--O-- in which R is a divalent alkylene group having 2 to 4 carbon atoms and a graft copolymer produced by polymerizing a vinyl monomer in the presence of said polyether, and (B) an epoxy resin which has been cured with a curing agent in the presence of a solvent in which an uncured epoxy resin and the curing agent can be dissolved, and wherein the cured epoxy resin is insolubilized to precipitate in the form of fine powder.
Claim 3
Dependent Claim
32 words
The curable polymer composition according to claim 1, wherein the weight ratio of the organic elastomeric polymer (A) to the epoxy resin which has been cured (B) is from 100:1 to 100:200.
Claim 4
Dependent Claim
43 words
The curable polymer composition according to claim 1, wherein the organic elastomeric polymer (A) has a backbone chain consisting of a polyether comprising repeating units of the formula: --R--O-- in which R is a divalaent alkylene group having 2 to 4 carbon atoms.
Claim 5
Dependent Claim
30 words
The curable polymer composition according to claim 1, wherein the organic elastomeric polymer (A) has a graft copolymer produced by polymerizing a vinyl monomer in the presence of the polyether.
Claim 6
Dependent Claim
35 words
The curable polymer composition according to claim 1, wherein the silicon-containing group which is cross linkable through formation of a siloxane bond is a silicon-containing group having an alkoxy group bonded to the silicon atom.
Claim 7
Dependent Claim
117 words
A curable polymer composition comprising: (A) an organic elastomeric polymer having, in a molecule, at least one silicon-containing group which is cross linkable through formation of a siloxane bond, said organic elastomeric polymer being selected form the group consisting of a polyether which includes repeating units of the formula --R--O-- in which R is a divalent alkylene group having 2 to 4 carbon atoms and a graft copolymer produced by polymerizing a vinyl monomer in the presence of said polyether, and (B) an epoxy resin which has been cured in the organic elastomeric polymer with a curing agent in the presence of a solvent in which an uncured epoxy resin an the curing agent can be dissolved.
Claim 8
Dependent Claim
117 words
A curable polymer composition comprising: (A) an organic elastomeric polymer having, in a molecule, at least one silicon-containing group which is cross linkable through formation of a siloxane bond, said organic elastomeric polymer being selected form the group consisting of a polyether which includes repeating units of the formula --R--O-- in which R is a divalent alkylene group having 2 to 4 carbon atoms and a graft copolymer produced by polymerizing a vinyl monomer in the presence of said polyether, and (B) an epoxy resin which has been cured in the organic elastomeric polymer with a curing agent in the presence of a solvent in which an uncured epoxy resin an the curing agent can be dissolved.
Claim 9
Dependent Claim
32 words
The curable polymer composition according to claim 6, wherein the weight ratio of the organic elastomeric polymer (A) to the epoxy resin which has been cured (B) is from 100:1 to 100:200.
Claim 10
Dependent Claim
44 words
The curable polymer composition according to claim 6, wherein the organic elastomeric polymer (A) has a backbone chain consisting of a polyether which includes repeating units of the formula: --R--O-- in which R is a divalent alkylene group having 2 to 4 carbon atoms.
Claim 11
Dependent Claim
30 words
The curable polymer composition according to claim 6, wherein the organic elastomeric polymer (A) has a graft copolymer produced by polymerizing a vinyl monomer in the presence of the polyether.
Claim 12
Dependent Claim
35 words
The curable polymer composition according to claim 6, wherein the silicon-containing group which is cross linkable through formation of a siloxane bond is a silicon-containing group having an alkoxy group bonded to the silicon atom.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-27 | 2002-02-26 | 2002-08-28 | $7700.00 | Window Closed / Lapsed |