Patent US3962332A successfully refreshed from Google Patents.
US3962332A
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Bis-quaternary ammonium compounds and polymers
Assignee: Celanese Corp
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Filing: 1974-12-11
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Granted: 1976-06-08
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Expires: 1994-12-11
Abstract
Abstract This invention relates to di-olefinically unsaturated compounds which contain two quaternary ammonium moieties. Polymers and copolymers of these polyfunctional compounds are characterized by high charge density, and find application as flocculants, paper sizes, and electroconductive coatings.
Inventors
- 👤 Louis E. Trapasso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:07
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/41; D21H17/44; D21H17/45; D21H17/455; G; G03; G03G; G03G5/00; G03G5/10; G03G5/105; G03G5/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A composition of the formula: ##EQU2## wherein R is hydrogen or methyl, and X is an anion.
Claim 2
Dependent Claim
17 words
A composition of the formula: ##EQU2## wherein R is hydrogen or methyl, and X is an anion.
References Cited (Backward Citations)
US3170901A
Cited
US3632623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |