US3685953A
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Dry heat reaction of quaternized epoxides and quaternized chlorohydrins with hydroxylated textiles
Assignee: Institut Français du Textile et de l'Habillement
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Filing: 1969-08-27
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Granted: 1972-08-22
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Expires: 1989-08-27
Abstract
Abstract HYDROXYLISED POLYMERS WITH MODIFIED DYEING PROPERTIES AND HAVING HYDROXYL GROUPS REPLACED AT LEAST PARTIALLY BY QUATERNARY AMMONIUM GROUPS ARE PROVIDED. THESE POLYMERS MAY BE MADE BY IMPREGNATING A HYDROXYLISED POLYMER WITH AN AQUEOUS SOLUTION CONTAINING AN EPOXYPROPYL QUATERNARY AMMONIUM SALT OR A PRECURSOR THEREOF.
Inventors
- 👤 Georges Cuvelier
- 👤 Daniel Wattiez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:38
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/655; D06P1/66; D06M; D06M13/00; D06M13/322; D06M13/385; D06P3/00; D06P3/58; D06P3/60; D06P3/66; Y; Y10; Y10S; Y10S8/00; Y10S8/92
Claims Analysis
Total Claims: 0
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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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |