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US3066085A
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Irradiation grafting of acrylonitrile on vinyl chloride-vinylidene chloride copolymers
Assignee: BX Plastics Ltd
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Filing: 1958-09-02
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Granted: 1962-11-27
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Expires: 1978-09-02
Abstract
No abstract record available.
Inventors
- 👤 Robert Roy Smith
- 👤 Dennis Charles Macmillan Mann
- 👤 Enid Bevis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:49
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/02; C08F259/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR THE MANUFACTURE OF GRAFT COPOLYMERS FROM VINYL CHLORIDE-VINYLIDENE CHLORIDE COPOLYMERS, WHICH COMPRISES BRINGING A VINYL CHLORIDE COPOLYMER, OBTAINED BY COPOLYMERISING FROM 75 TO 98 PERCENT BY WEIGHT OF VINYL CHLORIDE WITH FROM 25 TO 2 PERCENT BY WEIGHT RESPECTIVELY OF VINYLIDENE CHLORIDE, INTO CONTACT WITH ACRYLONITRILE MONOMER, THE INITIAL VINYL CHLORIDE COPOLYMER CONSTITUTING FROM 50 TO 85 PERCENT BY WEIGHT OF THE TOTAL WEIGHT OF THE COPOLYMER AND ABSORBED ACRYLONITRILE, AND SUBJECTING THE SAID COPOLYMER AND ABSORBED ACRYLONITRILE IN THE SUBSTANTIAL ABSENCE OF OXYGEN TO HIGH ENERGY, IONISING RADIATION TO INDUCE GRAFT POLYMERISATION, THE TOTAL RADIATION DOSE BEING WITHIN THE RANGE OF 10,000 TO 50,000 REP.
Claim 2
Dependent Claim
109 words
A PROCESS FOR THE MANUFACTURE OF GRAFT COPOLYMERS FROM VINYL CHLORIDE-VINYLIDENE CHLORIDE COPOLYMERS, WHICH COMPRISES BRINGING A VINYL CHLORIDE COPOLYMER, OBTAINED BY COPOLYMERISING FROM 75 TO 98 PERCENT BY WEIGHT OF VINYL CHLORIDE WITH FROM 25 TO 2 PERCENT BY WEIGHT RESPECTIVELY OF VINYLIDENE CHLORIDE, INTO CONTACT WITH ACRYLONITRILE MONOMER, THE INITIAL VINYL CHLORIDE COPOLYMER CONSTITUTING FROM 50 TO 85 PERCENT BY WEIGHT OF THE TOTAL WEIGHT OF THE COPOLYMER AND ABSORBED ACRYLONITRILE, AND SUBJECTING THE SAID COPOLYMER AND ABSORBED ACRYLONITRILE IN THE SUBSTANTIAL ABSENCE OF OXYGEN TO HIGH ENERGY, IONISING RADIATION TO INDUCE GRAFT POLYMERISATION, THE TOTAL RADIATION DOSE BEING WITHIN THE RANGE OF 10,000 TO 50,000 REP.
References Cited (Backward Citations)
US2849419A
Cited
US2841569A
Cited
FR1130100A
Cited
US2878174A
Cited
US2863812A
Cited
FR1130099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |