US3796676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicone polymeric foam stabilizer composition and polyester urethane foam produced therewith
Assignee: Union Carbide Corp
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Filing: 1972-09-29
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Granted: 1974-03-12
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Expires: 1992-09-29
Abstract
Abstract ORGANOSILICONE POLYMERS ARE PROVIDED CONTAINING SILICON-CONTAINING UNITS A, B AND C, WHERE A IS CIO4/2, B IS A MONOFUNCTIONAL SILOXY UNIT IN WHICH SILICON IS BONDED TO AT LEAST ONE ORGANIC MOIETY BEARING AN ORGANIC-CAPPEC POLY(OXYALKYLENE) CHAIN, AND C IS A MONOFUNCTIONAL TRIHYDROCARBYLSILOXY INIT, AND IN WHICH THERE ARE FROM ABOUT 0.75 TO ABOUT 2 MOLES OF A, AND FROM ABOUT 0.1 TO ABOUT 1 MOLE OF C, PER MOLE OF B. THE POLYMERS ARE USEFUL AS SURFACTANTS AND FIND PARTICULAR APPLICATION IN THE MANUFACTURE OF FLEXIBLE POLYESTER URETHANE CELLULAR PRODUCTS, INCLUDING FLAME-RETARDED FOAMS.
Inventors
- 👤 W Rosemund
- 👤 B Kanner
- 👤 B Prokai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:11
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08G; C08G77/00; C08G77/42; C08G77/46; C08J2375/00; C08J2375/04; C08J2375/06; C08J2483/00; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04; Y10S516/06; Y10S521/00; Y10S521/906
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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |