US4288568A
Expired / Lapsed
US
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Elastomers containing chemically bonded metal atoms
Assignee: SGL Composites Inc
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Filing: 1980-07-30
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Granted: 1981-09-08
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Expires: 2000-07-30
Abstract
Abstract An elastomer containing chemically bonded metal atoms is prepared by reacting a diene elastomer such as a nitrile rubber with the reaction product of an epoxy resin and a metal containing polymer. The metal containing polymer is prepared by reacting a polycarboxylic acid and a metal complex which is a reaction product of tungsten carbonyl and/or molybdenum carbonyl with pyrrolidine.
Inventors
- 👤 Kenneth W. Lewis
- 👤 Robert C. Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:31
CPC Classifications
C; C08; C08L; C08L13/00; C08G; C08G63/00; C08G63/68; C08G63/681; C08G79/00; C08L21/00; C08L63/00; C08L85/00; C08L9/00; C08L9/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
55 words
An elastomer containing chemically bonded metal atoms obtained by reacting a diene elastomer with the reaction product of an epoxy resin and a metal containing polymer; said metal containing polymer having been obtained by reacting a polycarboxylic acid and a metal complex which is a reaction product of tungsten carbonyl and/or molybdenum carbonyl with pyrrolidine.
Claim 2
Dependent Claim
55 words
An elastomer containing chemically bonded metal atoms obtained by reacting a diene elastomer with the reaction product of an epoxy resin and a metal containing polymer; said metal containing polymer having been obtained by reacting a polycarboxylic acid and a metal complex which is a reaction product of tungsten carbonyl and/or molybdenum carbonyl with pyrrolidine.
Claim 3
Dependent Claim
15 words
An elastomer as defined in claim 1 wherein said diene elastomer is a nitrile rubber.
Claim 4
Dependent Claim
15 words
An elastomer as defined in claim 2 wherein said polycarboxylic acid is a dicarboxylic acid.
Claim 5
Dependent Claim
14 words
An elastomer as defined in claim 3 wherein said dicarboxylic acid is maleic acid.
Claim 6
Dependent Claim
25 words
An elastomer as defined in claim 3 wherein said dicarboxylic acid is a condensation product of a dicarboxylic acid or anhydride and a polyhydric alcohol.
Claim 7
Dependent Claim
21 words
An elastomer as defined in claim 2 wherein said epoxy resin is obtained by the reaction of Bisphenol A and epichlorohydrin.
Claim 8
Dependent Claim
18 words
An elastomer as defined in claim 2 wherein said nitrile rubber is a copolymer of butadiene and acrylonitrile.
Claim 9
Dependent Claim
15 words
An elastomer as defined in claim 7 wherein said butadiene/acrylonitrile copolymer contains reactive terminal groups.
Claim 10
Dependent Claim
16 words
An elastomer as defined in claim 8 wherein said reactive terminal groups are carboxylic acid groups.
Claim 11
Dependent Claim
15 words
An elastomer as defined in claim 8 wherein said reactive terminal groups are amine groups.
Claim 12
Dependent Claim
18 words
An elastomer as defined in claim 7 wherein said copolymer contains up to 30% by weight of acrylonitrile.
Claim 13
Dependent Claim
15 words
An elastomer as defined in claim 7 which has been cured with an amine catalyst.
Claim 14
Dependent Claim
15 words
An elastomer as defined in claim 12 wherein said amine catalyst is a tertiary amine.
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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |