US4816514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer blends of polyolefins and alternating copolymers of carbon monoxide and other monomers
Assignee: Shell USA Inc
•
Filing: 1988-06-08
•
Granted: 1989-03-28
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Expires: 2008-06-08
Abstract
Abstract Blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a poly(α-olefin) exhibit improved processability.
Inventors
- 👤 Robert G. Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:17
CPC Classifications
C; C08; C08L; C08L73/00; C08L23/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
32 words
A composition comprising a non-miscible blend of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component, a poly(α-olefin).
Claim 2
Dependent Claim
32 words
A composition comprising a non-miscible blend of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component, a poly(α-olefin).
Claim 3
Dependent Claim
51 words
The composition of claim 1 wherein the linear alternating polymer is represented by the formula --CO--CH.sub.2 --CH.sub.2 ].sub.x [CO--(B)].sub.y wherein B is the moiety of an ethylenically unsaturated hydrocarbon of at least 3 carbon atoms polymerized through the ethylenic unsaturation and the ratio of y:x is no more than about 0.5.
Claim 4
Dependent Claim
13 words
The composition of claim 2 wherein the poly(α-olefin) is polypropylene, poly(1-butene) or poly(4-methyl-1-pentene).
Claim 5
Dependent Claim
7 words
The composition of claim 3 wherein y=0.
Claim 6
Dependent Claim
24 words
The composition of claim 2 wherein B is a moiety of propylene and the ratio of y:x is from about 0.01 to about 0.1.
Claim 7
Dependent Claim
10 words
The composition of claim 5 wherein the poly(α-olefin) is isotactic.
Claim 8
Dependent Claim
12 words
The composition of claim 6 wherein the isotactic poly(α-olefin) is isotactic polypropylene.
Claim 9
Dependent Claim
12 words
The composition of claim 6 wherein the isotactic poly(α-olefin) is isotactic poly(4-methyl-1-pentene).
References Cited (Backward Citations)
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Cited
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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) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |