US4510075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive blends of an acetylene polymer and an elastomer having low unsaturation
Assignee: Verizon Laboratories Inc
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Filing: 1983-11-23
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Granted: 1985-04-09
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Expires: 2003-11-23
Abstract
Abstract Electrically conductive polymer blends of an acetylene polymer and an elastomer having a low level of unsaturation are disclosed herein. The low level of unsaturation provides resistance to heat, light, oxygen and ozone and yet provides sufficient sites for crosslinking of the blend to provide increased stability. These blends exhibit high conductivity upon doping with electron donors or electron acceptors.
Inventors
- 👤 Kang I. Lee
- 👤 Harriet Jopson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:07
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; C; C08; C08L; C08L49/00; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/125; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
33 words
An electrically conductive polymer blend comprising a doped acetylene polymer dispersed within an elastomer having a low level of unsaturation, said elastomer comprising a copolymer of a monoethylenically unsaturated monomer with a diene.
Claim 2
Dependent Claim
33 words
An electrically conductive polymer blend comprising a doped acetylene polymer dispersed within an elastomer having a low level of unsaturation, said elastomer comprising a copolymer of a monoethylenically unsaturated monomer with a diene.
Claim 3
Dependent Claim
14 words
An electrically conductive polymer blend of claim 1 wherein said acetylene polymer is poly(acetylene).
Claim 4
Dependent Claim
17 words
An electrically conductive polymer blend of claim 2 wherein said elastomer contains less than about 2% unsaturation.
Claim 5
Dependent Claim
14 words
An electrically conductive polymer blend of claim 3 wherein said elastomer is ethylene-propylene-diene terpolymer.
Claim 6
Dependent Claim
18 words
An electrically conductive polymer blend of claim 3 wherein said elastomer is a copolymer of isobutylene and isoprene.
Claim 7
Dependent Claim
18 words
An electrically conductive polymer blend of claim 3 wherein said elastomer is a copolymer of isobutylene and butadiene.
References Cited (Backward Citations)
US4222903A
Cited
US4394304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |