US4780246A
Expired / Lapsed
US
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Composites of conductive polymers and inorganic binders
Assignee: BASF SE
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Filing: 1987-04-08
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Granted: 1988-10-25
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Expires: 2007-04-08
Abstract
Abstract Composites of electrically conductive materials and inorganic binders contain, as the electrically conductive material, a p- or n-doped electrically conductive polymer which possesses conjugated bonds and forms a coherent phase.
Inventors
- 👤 Herbert Naarmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:18
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A shaped composite comprising a p- or n- doped electrically conductive polymer which forms a coherent phase and an inorganic binder, said polymer being characterized by the presence of conjugated double bonds and selected from the group consisting of acetylene, pyrrole and poly-p-phenylene polymers, said inorganic binder being of the hydraulic or nonhydraulic and selected from the group of materials consisting of gypsum, Sorel cement, magnesia, cement, lime, silicates, borates, vanadates, titanates, ferrates, cuprates, molybdates, selenium, sulfur and silicon, and wherein said electrically conductive polymer is present in an amount of from 0.001 to 0.1 part per part of said binder.
Claim 2
Dependent Claim
101 words
A shaped composite comprising a p- or n- doped electrically conductive polymer which forms a coherent phase and an inorganic binder, said polymer being characterized by the presence of conjugated double bonds and selected from the group consisting of acetylene, pyrrole and poly-p-phenylene polymers, said inorganic binder being of the hydraulic or nonhydraulic and selected from the group of materials consisting of gypsum, Sorel cement, magnesia, cement, lime, silicates, borates, vanadates, titanates, ferrates, cuprates, molybdates, selenium, sulfur and silicon, and wherein said electrically conductive polymer is present in an amount of from 0.001 to 0.1 part per part of said binder.
Claim 3
Dependent Claim
44 words
A shaped composite comprising a p- or n- doped electrically conductive polypyrrole polymer which forms a coherent phase and a cement binder, and wherein said electrically conductive polymer is present in an amount of from 0.001 to 0.1 part per part of said binder.
Claim 4
Dependent Claim
44 words
A shaped composite comprising a p- or n- doped electrically conductive polypyrrole polymer which forms a coherent phase and a cement binder, and wherein said electrically conductive polymer is present in an amount of from 0.001 to 0.1 part per part of said binder.
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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) | 1991-10-25 | 1992-04-25 | 1992-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-25 | 1996-04-25 | 1996-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-25 | 2000-04-25 | 2000-10-25 | $7700.00 | Window Closed / Lapsed |