US4761453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer processing
Assignee: Shell USA Inc
•
Filing: 1987-10-13
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Granted: 1988-08-02
•
Expires: 2007-10-13
Abstract
Abstract Plasticized compositions exhibiting enhanced thermal processability are produced by substantially saturating a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with water at the melting point of the plasticized composition.
Inventors
- 👤 Robert C. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:41
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/18; C08G; C08G67/00; C08G67/02; C08J2365/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
33 words
A plasticized composition comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, said polymer having been substantially saturated with water at the melting point of said composition.
Claim 2
Dependent Claim
33 words
A plasticized composition comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, said polymer having been substantially saturated with water at the melting point of said composition.
Claim 3
Dependent Claim
16 words
The composition of claim 1 wherein the polymer is a copolymer of carbon monoxide and ethylene.
Claim 4
Dependent Claim
17 words
The composition of claim 1 wherein the polymer is a terpolymer of carbon monoxide, ethylene and propylene.
Claim 5
Dependent Claim
23 words
The composition of claim 3 wherein the water is present from about 10% to about 45% by weight based on the total composition.
Claim 6
Dependent Claim
23 words
The composition of claim 4 wherein the water is present from about 20% to about 40% by weight based on the total composition.
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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) | 1991-08-02 | 1992-02-01 | 1992-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-02 | 1996-02-01 | 1996-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-02 | 2000-02-01 | 2000-08-02 | $7700.00 | Window Closed / Lapsed |