Patent US3206272A successfully refreshed from Google Patents.
US3206272A
Expired / Lapsed
US
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Acrylonitrile copolymers, blends and grafts made dye resistant with hydrocarbon substituted phenols
Assignee: Dow Chemical Co
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Filing: 1959-11-30
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Granted: 1965-09-14
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Expires: 1979-11-30
Abstract
No abstract record available.
Inventors
- 👤 Robert F Johnson
- 👤 Albert S Messer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:44
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8266; D06P3/8271; Y; Y10; Y10S; Y10S8/00; Y10S8/18; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A SYNTHETIC TEXTILE FIBER WHICH IS CHARACTERIZED IN HAVING ITS NORMAL RECEPTIVITY TO DYESTUFFS MODIFIED SO AS TO HAVE DYE-RESISTING CHARACTERISTICS, SAID FIBER BEING A MEMBER SELECTED FROM THE CLASS OF SYNTHETIC TEXTILE FIBERS CONSISTING OF (A) INTIMATE POLYMER BLENDS CONSISTING ESSENTIALLY OF (A1) BETWEEN ABOUT 80 AND ABOUT 99 WEIGHT PERCENT, BASED ON DRY FIBER WEIGHT, OF A FIBER-FORMING ACRYLONITRILE ADDITION POLYMER WITH (A2) BETWEEN ABOUT 20 TO ABOUT 1 WEIGHT PERCENT, BASED ON DRY FIBER WEIGHT, OF AN AZOTIC POLYMERIC DYE-ASSISTING ADJUVANT SELECTED FROM THE GROUP CONSISTING OF ADDITIONAL POLYMERS OF AT LEAST ABOUT 50 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE AZOTIC POLYMER OF (A2A) N-VINYL LACTAM MONOMERS; (A2B) NVINYL-3-MORPHOLINONE MONOMERS OF THE STRUCTURE:
Claim 2
Dependent Claim
118 words
A SYNTHETIC TEXTILE FIBER WHICH IS CHARACTERIZED IN HAVING ITS NORMAL RECEPTIVITY TO DYESTUFFS MODIFIED SO AS TO HAVE DYE-RESISTING CHARACTERISTICS, SAID FIBER BEING A MEMBER SELECTED FROM THE CLASS OF SYNTHETIC TEXTILE FIBERS CONSISTING OF (A) INTIMATE POLYMER BLENDS CONSISTING ESSENTIALLY OF (A1) BETWEEN ABOUT 80 AND ABOUT 99 WEIGHT PERCENT, BASED ON DRY FIBER WEIGHT, OF A FIBER-FORMING ACRYLONITRILE ADDITION POLYMER WITH (A2) BETWEEN ABOUT 20 TO ABOUT 1 WEIGHT PERCENT, BASED ON DRY FIBER WEIGHT, OF AN AZOTIC POLYMERIC DYE-ASSISTING ADJUVANT SELECTED FROM THE GROUP CONSISTING OF ADDITIONAL POLYMERS OF AT LEAST ABOUT 50 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE AZOTIC POLYMER OF (A2A) N-VINYL LACTAM MONOMERS; (A2B) NVINYL-3-MORPHOLINONE MONOMERS OF THE STRUCTURE:
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |