US3654347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylenically unsaturated hydroxy-containing lactone products
Assignee: Union Carbide Corp
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Filing: 1968-05-03
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Granted: 1972-04-04
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Expires: 1988-05-03
Abstract
Abstract MONOHYDROXYL- AND DIHYDROXYL-CONTAINING POLYALCTONES POSSESSING AT LEAST ONE PENDANT POLYMERIZABLE ETHYLENIC GROUP ARE PREPARED BY REACTING A LACTONE HAVING FROM 4 TO 6 CARBON ATOMS IN THE RING, WITH AN ORGANIC ETHYLENICALLY UNSATURATED, HYDROXY-CONTAINING INITIATOR SUCH AS ALLYL ALCOHOL, 1,1,1-TRIMETHYLOLPROPANE MONOALLYL ETHER, ETC. THE RESULTING UNSATURATED POLYACTONES ARE USEFUL IN PREPARING SILOXANE SURFACTANTS, UNSATUREATED POLYURETHANE GUM STOCKS WHICH CAN BE CURED TO HIGHLY USEFUL VULCANIZEATES, ETC.
Inventors
- 👤 Harrison S Kincaid
- 👤 Fritz Hostettler
- 👤 Harry Vineyard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:34
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/68; C08G18/83; C08G63/00; C08G63/02; C08G63/06; C08G63/08
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |