US3564074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting vinyl resins reacted with dicarboxylic acid anhydrides
Assignee: Dow Chemical Co
•
Filing: 1966-11-28
•
Granted: 1971-02-16
•
Expires: 1986-11-28
Abstract
Abstract THE PRESENT INVENTION RELATES TO NEW THERMOSETTING RESIN COMPOSITIONS PREPARED BY REACTING A POLYEPOXIDE WITH AN ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID AND THEN REACTING A DICARBOXYLIC ACID ANHYDRIDE WITH THE SECONDARY HYDROXYL GROUPS FORMED BY THE EPOXIDE-CARBOXLIC ACID INTERACTION. THE RESIN MAY BE BLENDED WITH A POLYMERIZABLE MONOMER.
Inventors
- 👤 David H Swisher
- 👤 David C Garms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:17
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/56; C08G63/58; C08F; C08F299/00; C08F299/02; C08F299/026; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4292; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |