US3681441A
Expired / Lapsed
US
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Quaternary fluorinated ammonium salts
Assignee: 3M Co
•
Filing: 1970-04-13
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Granted: 1972-08-01
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Expires: 1990-04-13
Abstract
Abstract The disclosed quaternary ammonium salts contain a hydrofluoroalkyl substituent on the quaternary nitrogen atom. Processes for the preparation of these salts and compositions containing them are described. These salts and their compositions are active antimicrobial agents.
Inventors
- 👤 Jerry E Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:44
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/004; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
10 words
A compound according to claim 1 wherein Y is hydrogen.
Claim 2
Dependent Claim
20 words
A compound according to claim 1 wherein Rf is a straight chain perfluoroalkyl radical of four to 10 carbon atoms.
Claim 3
Dependent Claim
26 words
A compound according to claim 2 wherein X is selected from ethylene or oxyethylene and Rf is a perfluoroalkyl radical of six to nine carbon atoms.
Claim 4
Dependent Claim
23 words
A compound according to claim 1 wherein said compound is an N-(1,1-dihydroperfluoro-n-octyl)-N,N-dimethyl-N-(2-phenoxyethyl)ammonium salt, the anion of said salt being said pharmaceutically acceptable anion.
Claim 5
Dependent Claim
11 words
A compound according to claim 5 wherein said anion is iodide.
Claim 6
Dependent Claim
23 words
A compound according to claim 1 wherein said compound is an N-(1,1-dihydroperfluoro-n-octyl)-N,N-dimethyl-N-(2-phenethyl)ammonium salt, the anion of said salt being said pharmaceutically acceptable anion.
Claim 7
Dependent Claim
11 words
A compound according to claim 7 wherein said anion is trifluoromethanesulfonate.
References Cited (Backward Citations)
US2581336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |