Patent US3723374A successfully refreshed from Google Patents.
US3723374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoset organic compositions containing trisulfonylmethanes
Assignee: Wyeth Holdings LLC
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Filing: 1971-04-01
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Granted: 1973-03-27
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Expires: 1991-04-01
Abstract
Abstract A COATING COMPOSITION COMPRISING (1) FROM ABOUT 40% TO ABOUT 95%, BY WEIGHT, OF AN ANIONIC ACRYLIC POLYMER CONTAINING AT LEAST A CARBOXYL OR ALCOHOLIC HYDROXYL FUNCTION, (2) FROM ABOUT 4.9% TO ABOUT 50%, BY WEIGHT, OF AN AMINE-ALDEHYDE CROSS-LINKING AGENT AND (3) FROM ABOUT 0.1% TO 10%, BY WEIGHT, OF AN ACYCLIC TRISULFONE IS PROVIDED. THE COMPOSITION FINDS UTILITY IN COATING APPLICATIONS WHEREIN LOW TEMPERATURE CURE OF THE SAID COATED RESINOUS COMPOSITIONS CAN BE OBTAINED WITH ATTENDANT HIGH RESISTANCE TO ORGANIC SOLVENTS.
Inventors
- 👤 G Parekh
- 👤 W Blank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:09
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C09D167/00; C09D5/00; C09D5/44; C09D5/4407; C09D5/4411; C08; C08L; C08L61/00; C08L61/20; Y; Y10; Y10S; Y10S524/00; Y10S524/901
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |