Fluorine containing aqueous composition having water repellent and oil repellent properties
AssigneeHoechst Gosei Kabushiki Kaisha
InventorYuji Fukazawa
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Abstract
A feature of the present invention resides in a fluorine containing aqueous composition having water repellent and oil repellent properties comprising: (A) a fluorine containing copolymer aqueous emulsion which can be obtained by way of radical polymerization of perfluoroalkyl-acrylate monomer, monomer having carboxyl group and monomer having hydroxyl group at a certain ratio; and (B) cationic water soluble polymer such as polyallylamine salt.
Claims8
A fluorine containing aqueous composition having water repellent and oil repellent properties comprising:
- (A) a fluorine containing copolymer aqueous emulsion obtained by radical polymerization after refining the size of the dispersed particles to under 0.3 microns through an emulsifying process in water by adding a surfactant to a composition of monomers comprising:
- (a) 2 to 40 mol % of a perfluoro-alkyl-acrylate monomer wherein the alkyl group has 6 to 12 carbon atoms;
- (b) 0.1 to 15 mol % of an .alpha.,.beta.-ethylenically unsaturated monomer containing carboxyl group which can be copolymerized with monomer (a);
- (c) 0 to 25 mol % of an .alpha.,.beta.-ethylenically unsaturated monomer containing hydroxyl groups which can be copolymerized with the monomers (a) and (b);
- and
- (d) 97.9 to 45 mol % of .alpha.,.beta.-ethylenically unsaturated monomer which can be copolymerized with the monomers described in (a), (b) and (c) and which is different than monomers (a), (b) and (c);
- and
- (B) a cationic water soluble polymer compound.
The fluorine containing product with water repellant and oil repellant properties comprising:
- (A) The fluorine containing copolymer aqueous emulsion obtained by radical polymerization after refining disperse particles to under 0.3 microns through an emulsifying process in water by adding a surfactant to a composition of monomers comprising:
- (a) 2 to 40 mol % of a perfluoro-alkyl-acrylate monomer wherein in the alkyl group has six to twelve carbon atoms;
- (b) 0.1 to 15 mol % of .alpha.,.beta.-ethylenically unsaturated monomer contained carboxyl group which can be copolymerized with monomer (a);
- (c) 0 to 25 mol % of an .alpha.,.beta.-ethylenically unsaturated monomer containing hydroxyl groups which can be copolymerized with the monomers (a) and (b);
- and
- (d) 97.9 to 45 mol % of an .alpha.,.beta.-ethylenically unsaturated monomer which can be copolymerized with the monomers described in (a), (b), and (c) and which is different than monomers (a), (b) and (c);
- and
- (B) A cationic water-soluble polymer compound;
- which is in the form of a two-liquid component product comprising the aqueous emulsion (A) separate from the cationic compound (B) .
Dependencies are inferred from the claim text.