Patent US2676166A successfully refreshed from Google Patents.
US2676166A
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Polymeric quaternary ammonium compounds
Assignee: EIDP Inc
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Filing: 1952-04-01
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Granted: 1954-04-20
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Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 Webers Vincent Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:15
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3209; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A POLYMERIC QUATERNARY AMMONIUM COMPOUND CONTAINING BETWEEN 0.5% AND 5% NITROGEN, BY WEIGHT, SAID COMPOUND BEING OBTAINED BY REACTING A COPOLYMER OF ALLYL GLYCIDYL ETHER AND VINYL ACETATE, SAID COPOLYMER HAVING A MOLECULAR WEIGHT OF 1,000 TO 10,000 AND CONTAINING 0.6% TO 7%, BY WEIGHT, OF OXIRANE OXYGEN, WITH A TERTIARY MONOAMINE HAVING A BASICITY EQUIVALENT TO AN IONIZATION CONSTANT OF AT LEAST 1X10-9 IN AN AMOUNT BETWEEN 0.5 TO 5 EQUIVALENTS PER OXIRANE OXYGEN ATOM, AND A COMPOUND FROM THE GROUP CONSISTING OF WATER AND ACIDS, IN AN AMOUNT BETWEEN 0.25 TO 5 EQUIVALENTS PER OXIRANE OXYGEN ATOM.
Claim 2
Dependent Claim
99 words
A POLYMERIC QUATERNARY AMMONIUM COMPOUND CONTAINING BETWEEN 0.5% AND 5% NITROGEN, BY WEIGHT, SAID COMPOUND BEING OBTAINED BY REACTING A COPOLYMER OF ALLYL GLYCIDYL ETHER AND VINYL ACETATE, SAID COPOLYMER HAVING A MOLECULAR WEIGHT OF 1,000 TO 10,000 AND CONTAINING 0.6% TO 7%, BY WEIGHT, OF OXIRANE OXYGEN, WITH A TERTIARY MONOAMINE HAVING A BASICITY EQUIVALENT TO AN IONIZATION CONSTANT OF AT LEAST 1X10-9 IN AN AMOUNT BETWEEN 0.5 TO 5 EQUIVALENTS PER OXIRANE OXYGEN ATOM, AND A COMPOUND FROM THE GROUP CONSISTING OF WATER AND ACIDS, IN AN AMOUNT BETWEEN 0.25 TO 5 EQUIVALENTS PER OXIRANE OXYGEN ATOM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |