US4481312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet structures and fibers containing burr-shaped or fibrous, doped polyacetylene particles and process for the production thereof
Assignee: Bayer AG
•
Filing: 1982-03-26
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Granted: 1984-11-06
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Expires: 2002-03-26
Abstract
Abstract A process for the production of sheet structure, including fibres from plastics solutions containing deped, burr-shaped or fibrous polyacetylene particles, in which process the solution is shaped to form a sheet and the solvent is removed and the sheet structure thus prepared.
Inventors
- 👤 Jurgen Hocker
- 👤 Rudolf Merten
- 👤 Bernd Willenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:31
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/24; C; C08; C08L; C08L33/00; C08L33/18; C08L33/20; H01B1/06; H01B1/12; H01B1/124; H01B1/125
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
52 words
A process for coating or impregnating a substrate which comprises (1) applying a coating composition to the substrate, said composition comprising solvent, a plastic material dissolved in the solvent, and polyacetylene particles which are doped and are burr-shaped or fibrous and (2) removing the solvent from the composition applied to the substrate.
Claim 2
Dependent Claim
52 words
A process for coating or impregnating a substrate which comprises (1) applying a coating composition to the substrate, said composition comprising solvent, a plastic material dissolved in the solvent, and polyacetylene particles which are doped and are burr-shaped or fibrous and (2) removing the solvent from the composition applied to the substrate.
Claim 3
Dependent Claim
29 words
A process according to claim 1, wherein the solvent and plastic comprise a solution of a cellulose ester, a polycarbonate, polyvinyl chloride or polyacrylonitrile in an inert organic solvent.
Claim 4
Dependent Claim
16 words
A process according to claim 1, wherein the coating composition contain an additional, conductivity increasing additive.
Claim 5
Dependent Claim
30 words
A coating composition comprising (1) an inert organic solvent, (2) a plastic material selected from cellulose ester, polycarbonate, polyvinyl chloride or polyacrylonitrile and (3) doped, burr-shaped or fibrous polyacetylene particles.
Claim 6
Dependent Claim
30 words
A coating composition comprising (1) an inert organic solvent, (2) a plastic material selected from cellulose ester, polycarbonate, polyvinyl chloride or polyacrylonitrile and (3) doped, burr-shaped or fibrous polyacetylene particles.
Claim 7
Dependent Claim
28 words
A coated article coated by the process according to claim 1 wherein the coating contains from 0.01 to 99% by weight of said doped, burr-shaped or fibrous particles.
Claim 8
Dependent Claim
32 words
The coated articles according to claim 5 wherein the coating contains 0.1 to 20% by weight of said polyacetylene particles and the plastic material is cellulose ester, polycarbonate, polyvinyl chloride or polyacrylonitrile.
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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) | 1987-11-06 | 1988-05-07 | 1988-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-06 | 1992-05-07 | 1992-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-06 | 1996-05-07 | 1996-11-06 | $7700.00 | Window Closed / Lapsed |