US4536254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ammonium and amine salts of di-perfluoroalkyl group containing acids and compositions and use thereof
Assignee: BASF Corp
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Filing: 1984-07-23
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Granted: 1985-08-20
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Expires: 2004-07-23
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
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:29
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; C; C07; C07C; C07C317/00; C07C323/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31989; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
84 words
An aqueous emulsion concentrate containing 5% to 40% by weight of a compound of the formula ##STR37## 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
84 words
An aqueous emulsion concentrate containing 5% to 40% by weight of a compound of the formula ##STR37## 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
144 words
An aqueous emulsion or dispersion for topical application to a cellulosic or natural or synthetic polyamide substrate, to render the substrate oil and water repellant comprising (a) 0.01 to 5% by weight of the amine salt 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 (b) 0 to 3% by weight emulsifier; (c) 0 to 5% by weight filler, water repellant assistant, bacteriostat, coloring agent or surface conditioner adjuvant; (d) 0 to 10% by weight sizing agent, and (e) the remainder water.
Claim 4
Dependent Claim
144 words
An aqueous emulsion or dispersion for topical application to a cellulosic or natural or synthetic polyamide substrate, to render the substrate oil and water repellant comprising (a) 0.01 to 5% by weight of the amine salt 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 (b) 0 to 3% by weight emulsifier; (c) 0 to 5% by weight filler, water repellant assistant, bacteriostat, coloring agent or surface conditioner adjuvant; (d) 0 to 10% by weight sizing agent, and (e) the remainder water.
Claim 5
Dependent Claim
18 words
An aqueous emulsion or dispersion according to claim 2 containing 0.001 to 3% by weight of said emulsifier.
Claim 6
Dependent Claim
16 words
An aqueous emulsion or dispersion according to claim 3 wherein the emulsifier is a non-ionic emulsifier.
Claim 7
Dependent Claim
20 words
An aqueous emulsion or dispersion according to claim 2 containing 0.01 to 5% by weight of said surface conditioner adjuvant.
Claim 8
Dependent Claim
26 words
An aqueous emulsion or dispersion for topical application to a cellulosic substrate, according to claim 2, containing 0.01 to 10% by weight of said sizing agent.
Claim 9
Dependent Claim
132 words
An aqueous emulsion for the internal sizing of paper pulp, to render the same oil and water repellant, comprising (a) 0.0005 to 0.1% by weight of an amine salt of the formula ##STR39## 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 (b) 0.00001 to 0.05% by weight emulsifier; (c) 0 to 5% by weight filler, bacteriostat, fungicide, coloring agent or surface conditioner adjuvant; (d) 0 to 10% sizing agent; and (e) the remainder water.
Claim 10
Dependent Claim
132 words
An aqueous emulsion for the internal sizing of paper pulp, to render the same oil and water repellant, comprising (a) 0.0005 to 0.1% by weight of an amine salt of the formula ##STR39## 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 (b) 0.00001 to 0.05% by weight emulsifier; (c) 0 to 5% by weight filler, bacteriostat, fungicide, coloring agent or surface conditioner adjuvant; (d) 0 to 10% sizing agent; and (e) the remainder water.
Claim 11
Dependent Claim
14 words
An aqueous emulsion according to claim 7, wherein the emulsifier is a nonionic emulsifier.
Claim 12
Dependent Claim
40 words
A process for rendering a cellulosic or natural or synthetic polyamide substrate oil and water repellant comprising the steps of contacting said substrate with an effective amount of an aqueous emulsion according to claim 2, and drying the treated substrate.
Claim 13
Dependent Claim
39 words
A process for the internal sizing of paper pulp, comprising contacting said paper pulp with an effective amount of an aqueous emulsion according to claim 6, to render the pulp oil and water repellant, and subsequently drying the pulp.
Claim 14
Dependent Claim
16 words
A process according to claim 9, wherein said paper pulp is pretreated with a cationic agent.
Claim 15
Dependent Claim
28 words
A process according to claim 11, wherein the cationic agent is a cationically modified starch, a cationic modified aminoplast resin, a cationic polymer or a cationic blocked polyurethane.
Claim 16
Dependent Claim
15 words
A process according to claim 11, wherein the cationic agent is a cationically modified starch.
Claim 17
Dependent Claim
20 words
A water and oil repellant cellulosic, or natural or synthetic polyamide, substrate produced according to the process of claim 9.
Claim 18
Dependent Claim
16 words
An oil and water repellant paper pulp article produced according to the process of claim 10.
Claim 19
Dependent Claim
16 words
An oil and water repellant paper pulp article produced according to the process of claim 12.
References Cited (Backward Citations)
US2144552A
Cited
US2278499A
Cited
US2762842A
Cited
US2843471A
Cited
US2753372A
Cited
US2976316A
Cited
US3293306A
Cited
US3810939A
Cited
JPS5212309A
Cited
SU657102A1
Cited
US4239915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |