Patent US3817845A successfully refreshed from Google Patents.
US3817845A
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Photopolymerizable epoxy systems containing sulfoxide gelation inhibitors
Assignee: Primerica Inc
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Filing: 1972-11-07
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Granted: 1974-06-18
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Expires: 1992-11-07
Abstract
Abstract POLYMERIZATION OF EPOXIDES AND MIXTURES OF EPOXIDES WITH LACTONES AND VINYL COMPOUNDS, POLYMERIZABLE THROUGH THE ACTION OF CATIONIC CATALYST, IS CONTROLLED BY PROVIDING, IN ASSOCIATION WITH A RADIATION-SENSITIVE CATALYST PRECURSOR, A GELATION INHIBITOR IN THE FORM OF A SULFOXIDE COMPOUND SUCH AS METHYL SULFOXIDE OR N-PROPYL SULFOXIDE.
Inventors
- 👤 J Feinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:01
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/105; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/625; C08G59/68; C08G59/686; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |