Ammonium and amine salts of di-perfluoroalkyl group containing acids and compositions and use thereof
AssigneeCiba-Geigy Corporation
InventorsRobert A. Falk, Istvan Borsodi
Life of this patent
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Abstract
Ammonium and amine salts of acids having the formula ##STR1## wherein R.sub.f is a perfluoroalkyl group; R.sub.1 is alkylene or substituted alkylene; X is --S--, --SO--, or --SO.sub.2 --; R.sub.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.sub.1 and q.sub.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.
Claims16
An aqueous emulsion concentrate containing 5% to 40% by weight of a compound of the formula ##STR37## wherein R.sub.f is perfluoroalkyl of 6 to 14 carbon atoms;
- R.sub.1 is straight or branched chain alkylene of 2 to 8 carbon atoms;
- X is --S-- or --SO.sub.2 --;
- R.sub.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.
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.sub.f is perfluoroalkyl of 6 to 14 carbon atoms;
- R.sub.1 is straight or branched chain alkylene of 2 to 8 carbon atoms;
- X is --S-- or --SO.sub.2 --;
- R.sub.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.
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.sub.f is perfluoroalkyl of 6 to 14 carbon atoms;
- R.sub.1 is straight or branched chain alkylene of 2 to 8 carbon atoms;
- X is --S-- or --SO.sub.2--;
- R.sub.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.
Dependencies are inferred from the claim text.