Patent US2958672A successfully refreshed from Google Patents.
US2958672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing process for high molecular weight polymers involving the use of free radical generators and free radical acceptors and product thereof
Assignee: EIDP Inc
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Filing: 1956-11-19
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Granted: 1960-11-01
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Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 Earl J Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:31
CPC Classifications
C; C08; C08F; C08F291/00; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A COMPOSITION COMPRISING A POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 5000 AND PREPARED BY THE POLYMERIZATION OF MONOMERS CONTAINING AT LEAST ONE CARBONTO-CARBON DOUBLE BOND, SAID POLYMER HAVING A POLYMERIC CHAIN MADE UP OF CARBON ATOMS ESSENTIALLY JOINED BY CARBON-TO-CARBON SINGLE BONDS, FROM 0.1 TO 10 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC PEROXIDES AND AZOBISALIPHATIC NITRILES, AND FROM 0.5 TO 6 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF N-S-BSTITUTED MALEIMIDES, N,N''-SUBSTITUTED BISMALEIMIDES AND TRICRYLOYLHEXAHYDROTRIAZINE.
Claim 2
Dependent Claim
88 words
A COMPOSITION COMPRISING A POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 5000 AND PREPARED BY THE POLYMERIZATION OF MONOMERS CONTAINING AT LEAST ONE CARBONTO-CARBON DOUBLE BOND, SAID POLYMER HAVING A POLYMERIC CHAIN MADE UP OF CARBON ATOMS ESSENTIALLY JOINED BY CARBON-TO-CARBON SINGLE BONDS, FROM 0.1 TO 10 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC PEROXIDES AND AZOBISALIPHATIC NITRILES, AND FROM 0.5 TO 6 PERCENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF N-S-BSTITUTED MALEIMIDES, N,N''-SUBSTITUTED BISMALEIMIDES AND TRICRYLOYLHEXAHYDROTRIAZINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |