US3598783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxane amides
Assignee: General Electric Co
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Filing: 1970-03-11
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Granted: 1971-08-10
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Expires: 1990-03-11
Abstract
Abstract POLYSILOXANE AMIDES ARE OBTAINED FROM THE REACTION OF AN ORGANIC DIAMINE, A PHTHALOYL HALIDE SELECTED FROM THE CLASS CONSISTING OF TEREPHTHALOYL AND ISOPHTHALOYL HALIDES, AND A POLYSILOXANE CONTAINING TERMINAL SILICON-BONDED -R-CO-Z GROUPS WHERE R IS A DIVALENT HYDROCARBON RADICAL AND Z IS A HALOGEN, OR HYDROXYL RADICAL OR THE -OCH3 RADICAL. HEAT-RESISTANT COMPOSITIONS OBTAINED FROM SUCH POLYSILOXANE AMIDES CAN BE USED FOR INSULATION AND PROTECTIVE PURPOSES WHERE RESISTANCE TO HEAT AND CORONA ARE IMPORTANT REQUIREMENTS.
Inventors
- 👤 Fred F Holub
- 👤 Denis R Pauze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:12
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/42; C08G77/00; C08G77/48; C08G77/54
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |