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US3948832A
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Stabilized ethylene-carbon monoxide copolymers containing an epoxy compound
Assignee: Millennium Petrochemicals Inc
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Filing: 1974-09-25
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Granted: 1976-04-06
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Expires: 1994-09-25
Abstract
Abstract Ethylene-carbon monoxide copolymer compositions are stabilized against thermal degradation by the incorporation therein of organic epoxy-containing compounds.
Inventors
- 👤 Donald E. Hudgin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:01
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515; C08K5/0008; C08K5/005; C08L; C08L101/00; C08L101/02; C08L101/06; C08L73/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
44 words
A stabilized ethylene carbon monoxide copolymer composition containing about 0.1 to 20% based on the weight of polymer in the composition of an organic compound free of substituents which interfere with the stabilizing effect of the compound and containing at least one epoxy group.
Claim 2
Dependent Claim
44 words
A stabilized ethylene carbon monoxide copolymer composition containing about 0.1 to 20% based on the weight of polymer in the composition of an organic compound free of substituents which interfere with the stabilizing effect of the compound and containing at least one epoxy group.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein said organic compound contains at least 8 carbon atoms.
Claim 4
Dependent Claim
29 words
The composition of claim 1 wherein said organic compound is present in an amount of about 1 to 10 percent based on the weight of polymer in the composition.
Claim 5
Dependent Claim
15 words
The composition of claim 1 wherein said organic compound is an epoxidized fatty acid triglyceride.
Claim 6
Dependent Claim
15 words
The composition of claim 4 wherein said epoxidized fatty acid triglyceride is epoxidized soybean oil.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein said compound is diglycidylether of bisphenol A.
Claim 8
Dependent Claim
25 words
The composition of claim 1 containing about 0.1 to 20 percent based on the total weight of polymer in the composition of a second stabilizer.
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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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |