Patent US3700574A successfully refreshed from Google Patents.
US3700574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable liquid polyene-polythiol polymer composition
Assignee: WR Grace and Co
•
Filing: 1971-06-25
•
Granted: 1972-10-24
•
Expires: 1991-06-25
Abstract
Abstract THE INVENTION DISCLOSED IS FOR A NEW PHOTOCURABLE 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 OF THE MOLECULE , A POLYTHIOL COMPOUND HAVING A MOLECULE CONTAINING A MULTIPLICITY OF PENDANT OR TERMIALLY POSITIONED -SH FUNCTIONAL GROUPS PER AVERAGE MOLECULE, AND A PHOTOCURING RATE ACCELERATOR. THE PHOTOCURABLE LIQUID POLYMER COMPOSITION UPON CURING IN THE PRESENCE OF ACTINIC LIGHT FORMS ODORLESS, SOLID, ELASTOMERIC OR RESINOUS 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
2026-10-29 09:52
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045; B; B65; B65H; B65H7/00; C08F; C08F299/00; C08F299/02; C08F299/022; C08F36/00; C08F36/02; C08F36/04; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/6715; C08G18/70; C08G18/81; C08G18/83; C08G18/834; C08G18/835; C08G71/00; C08G75/12; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/0275
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) | 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 |