US3579607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester-substituted organosilicon compositions
Assignee: Union Carbide Corp
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Filing: 1969-01-17
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Granted: 1971-05-18
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Expires: 1989-01-17
Abstract
Abstract THIS INVENTION RELATES TO CYCLOBUTANE DIOL POLYESTERSUBSTITUTED ORGANSILICON COMPOSITIOS CHARACTERIZED BY A POLYMERIC SEGMENT OR BLOCK THAT IS COMPOED OF RECURRING CYCLOBUTYLENE GROUPS LINKED TO EACH OTHER THROUGH CARBONATE LINKAGES (-OCOO-) OR DI(CARBONYLOXY)HYDROCARBYLENE LINKAGES AND THAT IS CHEMICALLY BONDED TO A SILICON ATOM. THE NOVEL COMPOSITIONS HAVE A SILICON-CONTAINING SEGMENT DERIVED FROM A SILANE OR A SILOXANE. IN THE LATTER CASE, THE COMPOSITION ARE BLOCK COPOLYMERS. THE COMPOSITIONS ARE STABLE TO HEAT AND LIGHT AND ARE USEFUL AS PROTECTIVE COATINGS, MOLDING ESINS AND ELASTOMERS.
Inventors
- 👤 Markus Matzner
- 👤 Allen Noshay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/448; C08G63/00; C08G63/68; C08G63/695; C08G64/00; C08G64/18; C08G64/186; C08G77/445; C08L; C08L67/00; C08L67/02
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |