US2793930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treatment of cyanoethylated cotton fibers with amines to improve their physical properties
Assignee: Institute of Textile Technology
•
Filing: 1954-03-08
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Granted: 1957-05-28
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Expires: 1974-03-08
Abstract
No abstract record available.
Inventors
- 👤 Compton Jack
- 👤 Barber Richard Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:40
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/345; D06M13/325; D06M13/332; D06M13/348; D06M13/368; Y; Y10; Y10S; Y10S8/00; Y10S8/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
THE PROCESS FOR IMPROVING THE TENSILE STRENGTH, ELONGATION AND ABRASION RESISTANCE OF CYANOETHYLATED COTTON FIBERS PRODUCTS WHICH COMPRISES SUBJECTING CYANOETHYLATED COTTON FIBERS HAVING FROM 0.1 TO 2.5 CYANOETHYL GROUPS PER ANHYDRO GLUCOSE UNIT TO TREATMENT WITH AN AMINE IN LIQUID PHASE OF THE GROUP CONSISTING OF METHYLAMINE, ETHYLAMINE, DIMETHYLAMINE, TRIMETHYLAMINE, TRIETHYLAMINE, TRIETHANOLAMINE, ETHYLENEDIAMINE, DIETHYLENETRIAMINE, 3-ISOPROPOXYPROPYLAMINE, 3-METHOXYPROPYLAMINE, 3-IMINOBISPROPYLAMINE, 3-DIMETHYLAMINEPROPYLAMINE, 3-ISOPROPYLAMINOPROPYLAMINE UNTIL THE TENSILE STRENGTH, ELONGATION AND ABRASION RESISTANCE OF THE CYANOETHYLATED COTTON FIBERS ARE IMPROVED, SAID TREATMENT RESULTING IN AN IMPREGNATION OF THE COTTON WITH THE AMINE, AND WASHING THE IMPREGNATED PRODUCT TO REMOVE UNREACTRED AMINE.
Claim 2
Dependent Claim
95 words
THE PROCESS FOR IMPROVING THE TENSILE STRENGTH, ELONGATION AND ABRASION RESISTANCE OF CYANOETHYLATED COTTON FIBERS PRODUCTS WHICH COMPRISES SUBJECTING CYANOETHYLATED COTTON FIBERS HAVING FROM 0.1 TO 2.5 CYANOETHYL GROUPS PER ANHYDRO GLUCOSE UNIT TO TREATMENT WITH AN AMINE IN LIQUID PHASE OF THE GROUP CONSISTING OF METHYLAMINE, ETHYLAMINE, DIMETHYLAMINE, TRIMETHYLAMINE, TRIETHYLAMINE, TRIETHANOLAMINE, ETHYLENEDIAMINE, DIETHYLENETRIAMINE, 3-ISOPROPOXYPROPYLAMINE, 3-METHOXYPROPYLAMINE, 3-IMINOBISPROPYLAMINE, 3-DIMETHYLAMINEPROPYLAMINE, 3-ISOPROPYLAMINOPROPYLAMINE UNTIL THE TENSILE STRENGTH, ELONGATION AND ABRASION RESISTANCE OF THE CYANOETHYLATED COTTON FIBERS ARE IMPROVED, SAID TREATMENT RESULTING IN AN IMPREGNATION OF THE COTTON WITH THE AMINE, AND WASHING THE IMPREGNATED PRODUCT TO REMOVE UNREACTRED AMINE.
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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) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |