US2850477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric vinylcarbazole fiberforming compositions
Assignee: Solutia Inc
•
Filing: 1952-11-10
•
Granted: 1958-09-02
•
Expires: 1972-11-10
Abstract
No abstract record available.
Inventors
- 👤 George E Ham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A DYEABLE, HEAT-STABLE COMPOSITION OF MATTER WHICH IS CAPABLE OF BEING FORMED INTO FIBERS AND FILAMENTS COMPRISING A SOLUTION BLENDED INTIMATE MIXTURE OF ONE TO 30 PERCENT OF (A) A COPOLYMER OF 20 TO 80 PERCENT BY WEIGHT OF N-VINYLCARBAZOLE AND 80 TO 20 PERCENT BY WEIGHT OF A POLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYLCARBAZOLE AND 80 TO 20 PERCENT BY PYRIDINES, N - VINYLIMIDAZOLE, VINYLPYRAZINE, N - VINYLBENZIMIDAZOLE, N - ALLYLBENZIMIDAZOLE, N - VINYLPYRROLIDONE, AND N - VINYLPIPERIDONE, AND 70 TO 99 PERCENT OF (B) A POLYMER OF AT LEAST 75 PERCENT BY WEIGHT OF ACRYLONITRILE AND UP TO 25 PERCENT OF ANOTHER POLYMERIZABLE MONO-OLEFINIC MONOMER.
Claim 2
Dependent Claim
110 words
A DYEABLE, HEAT-STABLE COMPOSITION OF MATTER WHICH IS CAPABLE OF BEING FORMED INTO FIBERS AND FILAMENTS COMPRISING A SOLUTION BLENDED INTIMATE MIXTURE OF ONE TO 30 PERCENT OF (A) A COPOLYMER OF 20 TO 80 PERCENT BY WEIGHT OF N-VINYLCARBAZOLE AND 80 TO 20 PERCENT BY WEIGHT OF A POLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYLCARBAZOLE AND 80 TO 20 PERCENT BY PYRIDINES, N - VINYLIMIDAZOLE, VINYLPYRAZINE, N - VINYLBENZIMIDAZOLE, N - ALLYLBENZIMIDAZOLE, N - VINYLPYRROLIDONE, AND N - VINYLPIPERIDONE, AND 70 TO 99 PERCENT OF (B) A POLYMER OF AT LEAST 75 PERCENT BY WEIGHT OF ACRYLONITRILE AND UP TO 25 PERCENT OF ANOTHER POLYMERIZABLE MONO-OLEFINIC MONOMER.
References Cited (Backward Citations)
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Cited
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US2550652A
Cited
US2643990A
Cited
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Cited
US2769793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |