US3758441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room temperature vulcanizable silicone rubber stocks
Assignee: Wacker Chemie AG
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Filing: 1972-02-24
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Granted: 1973-09-11
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Expires: 1992-02-24
Abstract
Abstract A ROOM-TEMPERATURE VULCANIZABLE SILICON RUBBER STOCK IS PREPARED BY ADMIXING AN ESSENTIALLY LINEAR DIORGANOPOLYSILOXANE HAVING REACTIVE END GROUPS, PREFERABLY HYDROXYL END GROUPS, AND AS A CROSSLINKER A MIXTURE OF AN AMINOSILANE AND AN OXIME SUBSTITUTED SILANE. THESE MATERIALS CAN BE STORED IN THE ABSENCE OF MOISTURE AND WILL CURE TO FORM ELASTOMERIC PRODUCTS UPON EXPOSURE TO MOISTURE.
Inventors
- 👤 E Wohlfarth
- 👤 P Hittmair
- 👤 S Nitzsche
- 👤 W Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:01
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/14; C08G77/16; C08G77/18; C08G77/22; C08G77/24; C08G77/26; Y; Y10; Y10S; Y10S528/00; Y10S528/901
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |