US3700643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation-curable acrylate-capped polycaprolactone compositions
Assignee: Union Carbide Corp
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Filing: 1970-09-02
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Granted: 1972-10-24
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Expires: 1990-09-02
Abstract
Abstract UNSATURATED ACRYLATE-CAPPED POLYCAPROLACTONE POLYOL DERIVATIVES ARE PRODUCED HAVING TERMINAL ACRYLYL GROUPS AND AT LEAST ONE POLYCAPROLACTONE POLYOL CHAIN RESIDUE IN THE MOLECULE. IN ONE OF ITS SIMPLEST FORM THE FINAL PRODUCT CAN BE THE REACTION PRODUCT OF A POLYCAPROLACTONE DIOL AN ORGANIC ISOCYANATE AND HYDROXYETHYL ACRYLATE. THESE NOVEL DERIVATIVES CAN BE USED TO PRODUCE NOVEL COATING COMPOSITIONS THAT ARE READILY CURED TO SOLID PROTECTIVE FILMS.
Inventors
- 👤 Oliver Wendell Smith
- 👤 James Edward Weigel
- 👤 David John Trecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:56
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/08; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4266; C08G18/4269; C08G18/4277; C08G18/67; C08G18/671; C08G18/672; Y; Y10; Y10S; Y10S525/00; Y10S525/92
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |