US3699084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemically curable liquid polyene-polythiol polymer composition
Assignee: WR Grace and Co
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Filing: 1971-06-25
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Granted: 1972-10-17
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Expires: 1991-06-25
Abstract
Abstract THE INVENTION DISCLOSED IS FOR A NEW CHEMICALLY CURABLE LIQUID POLYMER COMPOSITION WHICH INCLUDES A LIQUID POLYENE COMPONENT HAVING A MOLECULE CONTAINING AT LEAST TWO UNSATURATED CARBON-TO-CARBON BONDS DISPOSED AT TERMINAL POSITIONS ON A MAIN CHAIN BACKBONE OF THE MOLECULE, AND A POLYTHIOL COMPONENT HAVING A MOLECULE CONTAINING A MULTIPLICITY OF PENDANT OR TERMINALLY POSITIONED -SH FUNCTIONAL GROUPS PER AVERAGE MOLECULE. THE CHEMICALLY CURABLE LIQUID POLYMER COMPOSITION UPON CURING IN THE PRESENCE OF A CHEMICAL FREE RADICAL GENERATING REAGENT FORMS ODORLESS, SOLID, ELASTOMERIC PRODUCTS WHICH MAY SERVE AS SEALANTS, COATINGS, ADHESIVES, AND MOLDED ARTICLES.
Inventors
- 👤 Clifton L Kehr
- 👤 Walter R Wszolek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:16
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/6715; C08G18/70; C08G18/81; C08G18/8108; C08G18/83; C08G18/834; C08G18/835; C08G75/12; C08L; C08L81/00; Y; Y10; Y10S; Y10S525/00; Y10S525/92; Y10S525/921; Y10S525/925; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533; Y10T428/31551
Claims Analysis
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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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |