Patent US3821153A successfully refreshed from Google Patents.
US3821153A
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Polyacetylene terpolymers and plasticized polyacetylene blends
Assignee: General Electric Co
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Filing: 1973-01-29
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Granted: 1974-06-28
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Expires: 1993-01-29
Abstract
Abstract Certain polyacetylene terpolymers are provided having chemically combined ether linkages, or alkylene linkages and mixtures thereof, exhibiting improved compatability with various organic plasticizers. Blends of polyacetylene, including the polyacetylene terpolymers, and certain substantially non-volatile aliphatically unsaturated plasticizers, such as 1,4diphenylbutadiyne, have been found to be melt extrudable, and convertible to carbonaceous films and molded carbon objects.
Inventors
- 👤 D White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:56
CPC Classifications
C; C08; C08F; C08F38/00; C08L; C08L49/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
13 words
A melt-extrudable blend in accordance with claim 1, where (A) is a 1,4-diphenylbutadiyne.
Claim 2
Dependent Claim
27 words
A melt-extrudable blend in accordance with claim 1, where (B) is a terpolymer consisting essentially of chemically combined dihydricphenol dipropargyl ether units, para-diethynylbenzene units, and meta-diethynylbenzene units.
Claim 3
Dependent Claim
41 words
A melt-extrudable blend in accordance with claim 3, where the dihydricphenol dipropargyl ether units are present at about 4 mole percent, meta-diethynyl units are present at about 87 mole percent, and the para-diethynylbenzene units are present at about 9 mole percent.
Claim 4
Dependent Claim
24 words
A melt-extrudable blend in accordance with claim 1, where (B) is a terpolymer consisting essentially of diethynyl alkylene units, para-diethynylbenzene units, and meta-diethynylbenzene units.
Claim 5
Dependent Claim
41 words
A melt-extrudable blend in accordance with claim 5, where the diethynyl alkylene units are present at about 12 mole percent, the para-diethynylbenzene units are present at about 6 mole percent and the meta-diethynylbenzene units are present at about 82 mole percent.
Claim 6
Dependent Claim
13 words
A melt-extrudable blend in accordance with claim 1, where (A) is a 1,4-diphenylbutenyne.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |