US3133886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface active compositions containing fluoroalcohols
Assignee: Individual
•
Filing: 1961-03-23
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Granted: 1964-05-19
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Expires: 1981-03-23
Abstract
No abstract record available.
Inventors
- 👤 William A Zisman
- 👤 Marianne K Bernett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:16
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SURFACE ACTIVE COMPOSITION HAVING WETTING POWER IN AQUEOUS MEDIA CONSISTING ESSENTIALLY OF ITS AQUEOUS SOLUTION A FIRST WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM DIALKYL SULFOSUCCINATES AND SODIUM ALKYLSULFATES IN A CONCENTRATION ABOVE THE CRITICAL MICELLE CONCENTRATION THEREFOR AND A SECOND WETTING AGENT WHICH IS A NEARLY WATER-INSOLUBLE FLUOROALCOHOL OF FROM 6 TO 18 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF OMEGA-HYDROGENFLUOROALKYLCARBINOLS AND PERFLUOROALKYLCARBINOLS, SAID FIRST WETTING AGENT AND SAID FLUOROALCOHOL BEING PRESENT IN THE SOLUTION IN THE RATIO OF FROM ABOUT 4 TO 9:1 PARTS BY WEIGHT IN A CONCENTRATION BELOW THE CRITICAL MICELLE CONCENTRATION THEREFOR.
Claim 2
Dependent Claim
101 words
A SURFACE ACTIVE COMPOSITION HAVING WETTING POWER IN AQUEOUS MEDIA CONSISTING ESSENTIALLY OF ITS AQUEOUS SOLUTION A FIRST WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM DIALKYL SULFOSUCCINATES AND SODIUM ALKYLSULFATES IN A CONCENTRATION ABOVE THE CRITICAL MICELLE CONCENTRATION THEREFOR AND A SECOND WETTING AGENT WHICH IS A NEARLY WATER-INSOLUBLE FLUOROALCOHOL OF FROM 6 TO 18 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF OMEGA-HYDROGENFLUOROALKYLCARBINOLS AND PERFLUOROALKYLCARBINOLS, SAID FIRST WETTING AGENT AND SAID FLUOROALCOHOL BEING PRESENT IN THE SOLUTION IN THE RATIO OF FROM ABOUT 4 TO 9:1 PARTS BY WEIGHT IN A CONCENTRATION BELOW THE CRITICAL MICELLE CONCENTRATION THEREFOR.
References Cited (Backward Citations)
US2512435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |