US3975332A
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Epoxidized copolymers
Assignee: GE Chemicals Inc
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Filing: 1975-01-20
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Granted: 1976-08-17
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Expires: 1995-01-20
Abstract
Abstract Self-curing epoxidized copolymers of a conjugated diene and a carboxylic olefin. Curing is accomplished merely by heating at temperatures in the order of 150°C. The epoxidized copolymers are stable at ordinary temperatures.
Inventors
- 👤 Roy S. Anderson
- 👤 John F. Pendleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:42
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C08C; C08C19/00; C08C19/04; C08C19/06; C08F; C08F8/00; C08F8/08; C08L; C08L33/00; C08L33/02; C08L35/00; C09; C09D; C09D5/00; C09D5/44; C09D5/4403; C08F2800/00; C08F2800/10; C08F2810/00; C08F2810/50
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
105 words
An epoxidized copolymer obtained by epoxidation of from about 5% to 100% of the olefinic double bonds in a copolymer of (1) from about 1% to about 99%, on a molar basis, of a conjugated diene having the formula ##EQU1## where R, R 1 , R 2 and R 3 are hydrogen, halogen, alkoxy, aryl, cycloalkyl or alkyl having from 1 to 8 carbon atoms, and (2) a carboxylic olefin having the formula ##EQU2## where R 4 and R 5 are hydrogen, chlorine or lower alkyl, and X is hydrogen or carboxyl, said copolymer having an intrinsic viscosity of from about 0.05 to about 6.0.
Claim 2
Dependent Claim
105 words
An epoxidized copolymer obtained by epoxidation of from about 5% to 100% of the olefinic double bonds in a copolymer of (1) from about 1% to about 99%, on a molar basis, of a conjugated diene having the formula ##EQU1## where R, R 1 , R 2 and R 3 are hydrogen, halogen, alkoxy, aryl, cycloalkyl or alkyl having from 1 to 8 carbon atoms, and (2) a carboxylic olefin having the formula ##EQU2## where R 4 and R 5 are hydrogen, chlorine or lower alkyl, and X is hydrogen or carboxyl, said copolymer having an intrinsic viscosity of from about 0.05 to about 6.0.
Claim 3
Dependent Claim
16 words
The epoxidized copolymer of claim 1 wherein the conjugated diene contains less than 10 carbon atoms.
Claim 4
Dependent Claim
13 words
The epoxidized copolymer of claim 1 wherein the conjugated diene is a hydrocarbon.
Claim 5
Dependent Claim
12 words
The epoxidized copolymer of claim 1 wherein the conjugated diene is 1,4-butadiene.
Claim 6
Dependent Claim
12 words
The epoxidized copolymer of claim 1 wherein the conjugated diene is chloroprene.
Claim 7
Dependent Claim
12 words
The epoxidized copolymer of claim 1 wherein the conjugated diene is isoprene.
Claim 8
Dependent Claim
13 words
The epoxidized copolymer of claim 1 wherein the carboxylic olefin is maleic acid.
Claim 9
Dependent Claim
14 words
The epoxidized copolymer of claim 1 wherein the carboxylic olefin is a monocarboxylic olefin.
Claim 10
Dependent Claim
21 words
The epoxidized copolymer of claim 1 wherein at least about 10% of the olefinic double bonds of said copolymer are epoxidized.
Claim 11
Dependent Claim
13 words
The epoxidized copolymer of claim 9 wherein the predominant recurring unit is ##STR3##
Claim 12
Dependent Claim
40 words
An epoxidized copolymer obtained by epoxidation of from about 5% to 100% of the olefinic double bonds in a 50/50 (molar) copolymer of 1,4-butadiene and maleic anhydride, said copolymer having an intrinsic viscosity of from about 0.05 to about 6.0.
Claim 13
Dependent Claim
40 words
An epoxidized copolymer obtained by epoxidation of from about 5% to 100% of the olefinic double bonds in a 50/50 (molar) copolymer of 1,4-butadiene and maleic anhydride, said copolymer having an intrinsic viscosity of from about 0.05 to about 6.0.
Claim 14
Dependent Claim
38 words
An epoxidized copolymer obtained by epoxidation of from about 5% to 100% of the olefinic double bonds in a copolymer of (1) from about 1% to about 99%, on a molar basis, of 1,4-butadiene and (2) acrylic acid.
Claim 15
Dependent Claim
38 words
An epoxidized copolymer obtained by epoxidation of from about 5% to 100% of the olefinic double bonds in a copolymer of (1) from about 1% to about 99%, on a molar basis, of 1,4-butadiene and (2) acrylic acid.
Claim 16
Dependent Claim
25 words
A method for preparing a thermoset resin comprising heating at a temperature of from about 100° to about 300°C the epoxidized copolymer of claim 1.
Claim 17
Dependent Claim
25 words
A method for preparing a thermoset resin comprising heating at a temperature of from about 100° to about 300°C the epoxidized copolymer of claim 9.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |