US2764466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing a wool-acrylonitrile fiber mixture
Assignee: EIDP Inc
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Filing: 1952-08-28
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Granted: 1956-09-25
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Expires: 1972-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Lee Bidgood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:55
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8271; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR SELECTIVELY DYEING AN ACRYLONITRILE POLYMER IN WHICH THE ACRYLONITRILE COMPONENT CONSTITUTES AT LEAST 40% OF THE POLYMER MOLECULE IN A MIXTURE WITH WOOL WHICH COMPRISES TREATING THE SAID MIXTURE WITH AN AQUEOUS DYE BATH CONTAINING A BASIC DYE, ABOUT 2.5% TO ABOUT 15.0% OF A WATER-SOLUBLE ALIPHATIC CARBOXY ACID AND ABOUT 0.1% TO ABOUT 2.0% OF AN ALIPHATIC, NON-IONIC SURFACTANT DERIVED FROM ETHYLENE OXIDE, SAID PERCENTAGES BEING BASED ON THE WEIGHT OF SAID MIXTURE.
Claim 2
Dependent Claim
77 words
A PROCESS FOR SELECTIVELY DYEING AN ACRYLONITRILE POLYMER IN WHICH THE ACRYLONITRILE COMPONENT CONSTITUTES AT LEAST 40% OF THE POLYMER MOLECULE IN A MIXTURE WITH WOOL WHICH COMPRISES TREATING THE SAID MIXTURE WITH AN AQUEOUS DYE BATH CONTAINING A BASIC DYE, ABOUT 2.5% TO ABOUT 15.0% OF A WATER-SOLUBLE ALIPHATIC CARBOXY ACID AND ABOUT 0.1% TO ABOUT 2.0% OF AN ALIPHATIC, NON-IONIC SURFACTANT DERIVED FROM ETHYLENE OXIDE, SAID PERCENTAGES BEING BASED ON THE WEIGHT OF SAID MIXTURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |