Patent US3652733A successfully refreshed from Google Patents.
US3652733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable polymers as plasticizers
Assignee: WR Grace and Co
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Filing: 1970-02-09
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Granted: 1972-03-28
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Expires: 1990-02-09
Abstract
Abstract THERMOPLASTIC POLYMER COMPOSITIONS CONTAIN A PLASTICISER HAVING ADDITION-POLYMERISABLE DOUBLE BONDS AND A POLYTHIOL. THE COMPOSITIONS CAN BE CURED BY EXPOSURE TO FREE-RADICALS, AND IT IS BELIEVED THAT THE CURED PRODUCT IS A POLYTHIOETHER. PREFERABLY THE THERMOPLASTIC POLYMER IS VINYL CHLORIDE AND THE PLASTICISER DIALLYL PHTHALATE. THE COMPOSITIONS ARE USEFUL FOR FORMING PROTECTIVE OR DECORATIVE COATINGS.
Inventors
- 👤 Noel Ernest Davenport
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:52
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; C08F; C08F259/00; C08F259/02; C08F259/04; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08K5/04; C08K5/10; C08K5/12; C08K5/36; C08K5/37; C08K5/38; C08L; C08L101/00; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L81/00; C08L81/02
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) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |