Patent US3298478A successfully refreshed from Google Patents.
Patent US4419298A successfully refreshed from Google Patents.
US4419298A
Expired / Lapsed
US
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Ethanolamine salts of di-perfluoroalkyl group containing acids
Assignee: BASF Corp
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Filing: 1981-08-12
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Granted: 1983-12-06
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Expires: 2001-08-12
Abstract
Abstract Ammonium and amine salts of acids having the formula ##STR1## wherein R f is a perfluoroalkyl group; R 1 is alkylene or substituted alkylene; X is --S--, --SO--, or --SO 2 --; R 2 is hydrogen, alkyl, aryl, substituted aryl, --B--COOH or a --B--COO anion; B is a covalent bond, arylene or alkylene; Z is the ammonium or amine cation; p is the anionic charge, q is the cationic charge; and p 1 and q 1 are the balanced mole equivalents respectively, are provided. These salts applied in the form of aqueous dispersions or emulsions, are useful in rendering cellulosic and natural and synthetic polyamide materials oil and water repellent.
Inventors
- 👤 Robert A. Falk
- 👤 Istvan Borsodi
- 👤 Dieter Reinehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:47
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; C; C07; C07C; C07C317/00; C07C323/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
73 words
A compound of the formula ##STR38## wherein R f is perfluoroalkyl of 6 to 14 carbon atoms; R 1 is straight or branched chain alkylene of 2 to 8 carbon atoms; X is --S-- or --SO 2 --; R 2 is hydrogen or alkyl of 1 to 4 carbon atoms; B is a covalent bond or alkylene of 1 to 6 carbon atoms; and Z is the cation of mono-, di-, or tri-ethanolamine.
Claim 2
Dependent Claim
73 words
A compound of the formula ##STR38## wherein R f is perfluoroalkyl of 6 to 14 carbon atoms; R 1 is straight or branched chain alkylene of 2 to 8 carbon atoms; X is --S-- or --SO 2 --; R 2 is hydrogen or alkyl of 1 to 4 carbon atoms; B is a covalent bond or alkylene of 1 to 6 carbon atoms; and Z is the cation of mono-, di-, or tri-ethanolamine.
Claim 3
Dependent Claim
40 words
A compound according to claim 1 wherein R f is perfluoroalkyl of 6 to 12 carbon atoms, R 1 is alkylene of 2 to 4 carbon atoms, and R 2 is hydrogen or alkyl of 1 to 2 carbon atoms.
Claim 4
Dependent Claim
13 words
A compound according to claim 1 wherein Z is the cation of diethanolamine.
Claim 5
Dependent Claim
13 words
A compound according to claim 2 wherein Z is the cation of diethanolamine.
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) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |