US3575889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film forming coating agents with increased electronic conductivity
Assignee: Henkel AG and Co KGaA
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Filing: 1967-02-02
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Granted: 1971-04-20
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Expires: 1987-02-02
Abstract
Abstract FILM FORMING COATING AGENTS WITH INCREASED ELECTRONIC CONDUCTIVITY CONTAINING (1) ELECTRON DONATORS COMPRISING FILM FORMING POLYMERS CONTAINING AROMATIC OR HETEROCYCLIC RINGS AND ELECTRON REPELLING GROUPS, WHOSE IONIZATION ENERGY (I) IS LESS THAN 8.0 EV. AND (2) ELECTRON ACCEPTORS COMPRISING MONOMERIC, OLEFINICALLY UNSATURATED COMPOUNDS, QUINONOID COMPOUNDS OR BENZENOID COMPOUNDS HAVING ELECTRON ATTRACTING GROUPS, WHOSE ELECTRON AFFNITY (EA) IS MORE THAN 1.0 EV., IN A MOLAR RATIO OF ACCEPTOR TO DONATOR OF 1:500 TO 4:10 AND I-EA BEING BETWEEN 4.5 TO 6.0 EV. THE FILM FORMING COATING AGENTS ARE USEFUL FOR ANTISTIC FINISHING OF NON-CONDUCTIVE SYNTHETIC POLYMER PRODUCTS.
Inventors
- 👤 Walter Klopffer
- 👤 Winfried Willicks
- 👤 Helmut Rabenhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:59
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/16; C07D249/02; C07D249/04; C07D249/06; C07D249/18; C07D249/20; C07D249/22; C07D249/24; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/28; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18; C09; C09K; C09K3/00; C09K3/16; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/233; D06M15/356; D06M15/3562; H; H05; H05F; H05F1/00; H05F1/02; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 0
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |