US3586616A
Expired / Lapsed
US
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Bis(perfluoroalkylsulfonyl)methane metal salts in cationic polymerization
Assignee: 3M Co
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Filing: 1969-03-14
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Granted: 1971-06-22
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Expires: 1989-03-14
Abstract
Abstract BIS(PERFLUOROALKYLSULFONYL)METHANE METAL SALTS ARE USED AS LATENT CATALYSTS IN THE CURING OR POLYMERIZATION OF CATIONIC SENSITIVE MONOMERS, SUCH AS EPOXIDES, VINYL ETHERS, N-VINYL COMPOUNDS AZIRIDINES, AND ACETALS.
Inventors
- 👤 James E Kropp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/028; C08F; C08F4/00; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4064; C08G59/44; C08G59/444; C08G59/68; C08G59/687
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |