Patent US5268358A successfully refreshed from Google Patents.
US2965553A
Expired / Lapsed
US
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Curing of high molecular weight polymers
Assignee: EIDP Inc
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Filing: 1956-05-25
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Granted: 1960-12-20
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Expires: 1976-05-25
Abstract
No abstract record available.
Inventors
- 👤 Dixon Stanley
- 👤 Earl J Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:24
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; C08F; C08F291/00; C08F291/18; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS OF CURING HIGH MOLECULAR WEIGHT POLYMERS WHICH COMPRISES COMPOUNDING WITH SAID POLYMER, FROM ABOUT 0.5 TO ABOUT 6% BY WEIGHT OF THE POLYMER, A FREE RADICAL ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF (1) N-SUBSTITUTED MALEIMIDES, (2) N,N''-ALKYLENE BISMALEIMIDES, (3) ARYLENE BIS-MALEIMIDES, (4) N,N''-ALKYLENE BIS-ACRYLAMIDES, (5) ARYLENE BIS-ACRYLAMIDES, AND, (6) TRIACRYLOYLHEXAHYDROTRIAZINE, FOLLOWED BY SUBJECTING THE COMPOUND POLYMER TO HIGH ENERGY IONIZING RADIATION EQUIVALENT TO AT LEAST 50 ELECTRON VOLTS TO EFFECT A CURING DOSAGE OF AT LEAST ABOUT 1X10**6 REPS.
Claim 2
Dependent Claim
82 words
A PROCESS OF CURING HIGH MOLECULAR WEIGHT POLYMERS WHICH COMPRISES COMPOUNDING WITH SAID POLYMER, FROM ABOUT 0.5 TO ABOUT 6% BY WEIGHT OF THE POLYMER, A FREE RADICAL ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF (1) N-SUBSTITUTED MALEIMIDES, (2) N,N''-ALKYLENE BISMALEIMIDES, (3) ARYLENE BIS-MALEIMIDES, (4) N,N''-ALKYLENE BIS-ACRYLAMIDES, (5) ARYLENE BIS-ACRYLAMIDES, AND, (6) TRIACRYLOYLHEXAHYDROTRIAZINE, FOLLOWED BY SUBJECTING THE COMPOUND POLYMER TO HIGH ENERGY IONIZING RADIATION EQUIVALENT TO AT LEAST 50 ELECTRON VOLTS TO EFFECT A CURING DOSAGE OF AT LEAST ABOUT 1X10**6 REPS.
References Cited (Backward Citations)
US2301356A
Cited
US2475846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |