US3816374A
Expired / Lapsed
US
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Polyacetylenes
Assignee: General Electric Co
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Filing: 1973-02-08
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Granted: 1974-06-11
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Expires: 1993-02-08
Abstract
Abstract Certain polyacetylenes are provided having chemically combined ether linkages, or alkylene linkages and mixtures thereof, exhibiting improved compatability with various organic plasticizers. The polyacetylenes 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
2026-10-29 15:55
CPC Classifications
C; C08; C08F; C08F38/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
35 words
A polyacetylene in accordance with claim 1 where the terpolymer consists of 88 mole per cent of metadiethynylbenzene units, 10 mole per cent of para-diethynylbenzene units, and 2 mole per cent of bisphenol-A dipropargyl ether.
Claim 2
Dependent Claim
35 words
A polyacetylene in accordance with claim 1 where the terpolymer consists of 91.3 mole per cent of metadiethynylbenzene units, 4.7 mole per cent of para-diethynylbenzene units, and 4 mole per cent of bisphenol-A dipropargyl ether.
Claim 3
Dependent Claim
35 words
A polyacetylene in accordance with claim 1 where the terpolymer consists of 90 mole per cent of metadiethynylbenzene units, 4 mole per cent of para-diethynylbenzene units, and 6 mole per cent of bisphenol-A dipropargyl ether.
Claim 4
Dependent Claim
33 words
A polyacetylene in accordance with claim 1 consisting essentially of 87 mole per cent of meta-diethynylbenzene units, 9 mole per cent of para-diethynylbenzene units, and 4 mole per cent of bisphenol-A dipropargyl ether.
Claim 5
Dependent Claim
56 words
A tetrapolymer in accordance with claim 1 consisting essentially of about 5 per cent by weight of acetylene units chemically combined with about 95 per cent by weight of diethynyl units consisting of 4 mole per cent of chemically combined bisphenol-A dipropargyl ether, 9 mole per cent of para-diethynylbenzene, and 87 mole per cent of meta-diethynylbenzene.
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |