Patent US2993875A successfully refreshed from Google Patents.
US2993875A
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Coloring polychlorotrifluoroethylene with a color masterbatch of a copolymer of trifluorochloroethylene and vinylidene fluoride and composition thereof
Assignee: Union Carbide Corp
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Filing: 1957-06-27
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Granted: 1961-07-25
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Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Bruce H Maddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:08
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/443; H01B3/445; C08J2327/00; C08J2327/02; C08J2327/12; C08J2427/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
PROCESS FOR COLORING NORMALLY SOLID POLYCHLOROTRIFLUOROETHYLENE RESIN COMPOSITIONS WHICH COMPRISES FORMING A COLOR MASTERBATCH BY INTIMATELY MIXING A COPOLYMER OF TRIFLUOROCHLOROETHYLENE AND VINYLIDENE FLUORIDE CONTAINING FROM ABOUT 1 ABOUT 20 PERCETN INTERPOLYMERIZED VINYLIDENE FLUORIDE WITH A COLORANT MATERIAL IN AN AMOUNT OF FROM ABOUT 1 TO ABOUT 70 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID COPOLYMER, ADN THEREAFTER BLENDING SAID COLOR MASTERBATCH WITH NORMALLY SOLID POLYCHLOROTRIFLUORETHYLENE, THE WEIGHT RATIO OF THE SAID COPOLYMER TO SAID POLYCHLOROTRIFLUOROETHYLENE BEING NOT GREATER THAN ABOUT 2:3.
Claim 2
Dependent Claim
85 words
PROCESS FOR COLORING NORMALLY SOLID POLYCHLOROTRIFLUOROETHYLENE RESIN COMPOSITIONS WHICH COMPRISES FORMING A COLOR MASTERBATCH BY INTIMATELY MIXING A COPOLYMER OF TRIFLUOROCHLOROETHYLENE AND VINYLIDENE FLUORIDE CONTAINING FROM ABOUT 1 ABOUT 20 PERCETN INTERPOLYMERIZED VINYLIDENE FLUORIDE WITH A COLORANT MATERIAL IN AN AMOUNT OF FROM ABOUT 1 TO ABOUT 70 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID COPOLYMER, ADN THEREAFTER BLENDING SAID COLOR MASTERBATCH WITH NORMALLY SOLID POLYCHLOROTRIFLUORETHYLENE, THE WEIGHT RATIO OF THE SAID COPOLYMER TO SAID POLYCHLOROTRIFLUOROETHYLENE BEING NOT GREATER THAN ABOUT 2:3.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |