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US3852313A
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Novel fluorocarbon acids
Assignee: Honeywell International Inc
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Filing: 1973-05-21
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Granted: 1974-12-03
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Expires: 1993-05-21
Abstract
Abstract Novel fluorocarbon amides useful as oil- and water-repellant agents have the formula WHEREIN R is an alkyl diradical of one to 12 carbon atoms, an alkylene diradical of two to 12 carbon atoms, or a phenyl diradical; q is an integer from 1 to 6; and Rf is a radical having the formula
Inventors
- 👤 W Beyleveld
- 👤 B Oxenrider
- 👤 C Woolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/21; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/71; C08G18/712; C08K5/20; C08K5/34; C08K5/3467; C08K5/3477
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
4 words
COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
4 words
COMPOUNDS HAVING THE FORMULA
Claim 3
Dependent Claim
68 words
The compounds of claim 1 wherein R is an alkyl diradical of one to eight carbon atoms an alkylene diradical of two to eight carbon atoms, or a phenyl diradical, q is 2; s is an integer from 2 to 10; t is an integer not greater than s from 0 to 4; and Y is selected from the group consisting of F3C- and radicals having the formula
Claim 4
Dependent Claim
10 words
The compounds according to claim 2 wherein Rf is CF3(CF2)6-.
Claim 5
Dependent Claim
11 words
The compounds of claim 2 wherein R1 and R2 are fluorine.
Claim 6
Dependent Claim
17 words
The compounds of claim 4 wherein s is 2 to 5 and t is 0 to 2.
References Cited (Backward Citations)
US3697562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |