Patent US3565810A successfully refreshed from Google Patents.
US3565810A
Expired / Lapsed
US
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Concentrated tertiary amine oxide-hydrotrope aqueous solutions
Assignee: Witco Corp
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Filing: 1967-12-29
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Granted: 1971-02-23
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Expires: 1987-12-29
Abstract
Abstract CONCENTRATED AQUEOUS DETERGENT SOLUTIONS IN THE FORM OF SUBSTANTIALLY STABLE AND HOMOGENEOUS, POURABLE LIQUIDS ARE PREPARED BY OXIDIZING A TERTIARY AMINE WITH HYDROGEN PEROXIDE WHILE ADDING A HYDROTROPIC SULFONATE OF BENZENE OR LOWER ALKYL BENZENE UNDER CONDITIONS TO PREVENT GELLING DURING THE OXIDATION AND WHILE ALLOWING SUBSTANTIALLY COMPLETE CONVERSION OF THE TERTIARY AMINE TO ITS OXIDE TO OCCUR. EASILY POURABLE SOLUTIONS HAVING A SOLIDS CONTENT OF AT LEAST ABOUT 35% WITH A 15-25% TERTIARY AMINE OXIDE CONCENTRATION ARE OBTAINABLE.
Inventors
- 👤 Marvin L Mausner
- 👤 Brij L Kapur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:38
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/34; C11D3/3418; C07; C07C; C07C291/00; C07C291/02; C07C291/04; C11D1/00; C11D1/66; C11D1/75
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |