Patent US2654652A successfully refreshed from Google Patents.
US2654652A
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Dyeing of acrylonitrile polymers with acetate dyes
Assignee: EIDP Inc
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Filing: 1949-08-02
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Granted: 1953-10-06
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Expires: 1969-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Linton G Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:44
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/70; D06P3/72; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65125; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927; Y10S8/932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR DYEING A STRUCTURE OF AN ACRYLONITRILE POLYMER DERIVED FROM AT LEAST 85% BY WEIGHT OF ACRYLONITRILE WHICH COMPRISES PADDING SAID STRUCTURE WITH A MIXTURE OF AN ACETATE DYE DISPERSED THEREIN AND A DISPERSING LIQUID COMPRISING 25% TO 100% OF A CYCLIC ESTER CONTAINING FROM 3 TO 5 CARBON ATOMS; AND WET STEAMING THE RESULTANT PADDED STRUCTURE FOR AT LEAST ABOUT 5 MINUTES TO EFFECT SAID DYEING.
Claim 2
Dependent Claim
69 words
A PROCESS FOR DYEING A STRUCTURE OF AN ACRYLONITRILE POLYMER DERIVED FROM AT LEAST 85% BY WEIGHT OF ACRYLONITRILE WHICH COMPRISES PADDING SAID STRUCTURE WITH A MIXTURE OF AN ACETATE DYE DISPERSED THEREIN AND A DISPERSING LIQUID COMPRISING 25% TO 100% OF A CYCLIC ESTER CONTAINING FROM 3 TO 5 CARBON ATOMS; AND WET STEAMING THE RESULTANT PADDED STRUCTURE FOR AT LEAST ABOUT 5 MINUTES TO EFFECT SAID DYEING.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |