Back to results
US 5,667,848 AGranted
Use of aqueous polymer dispersions as textile auxiliaries for easy-care finishing of textiles
AssigneeBASF SE
InventorsRenate Wuestefeld, Toni Simenc
Life of this patent
Estimating the term…
Abstract
Aqueous polymer dispersions obtainable by polymerizing free-radically polymerizable unsaturated monomers in aqueous phase in the presence of a saccharide or of mixtures of saccharides by the method of free-radical aqueous emulsion polymerization are useful textile auxiliaries for the easy-care finishing of textile fabrics.
Claims7
A method for the easy-care finishing of textiles, which comprises impregnating the textile material with an aqueous bath which contains
- (A) at least one aqueous polymer dispersion obtained by free-radical aqueous emulsion polymerization of a free-radically polymerizable unsaturated monomer or mixture of monomers in aqueous phase in the presence of a saccharide or of a mixture of saccharides,
- (B) a reactive crosslinker with N-alkyl, N-methylol or N-methylol ether groups, and
- (C) a crosslinking catalyst, and
- drying the impregnated textile material at from 80.degree. C. to 200.degree. C.,
- wherein the polymerizable unsaturated monomers consist essentially of, based on the unsaturated monomers, of
- (a) from 90 to 99% by weight acrylic acid, methacrylic acid or a mixture thereof esterified with alkanols of from 1 to 8 carbon atoms, and from 1 to 10% by weight of acrylic acid, methacrylic acid or a mixture thereof, or
- (b) from 90 to 99% by weight of at least one ester of an .alpha.,.beta.-monoethylenically unsaturated mono- or dicarboxylic acid of from 3 to 6 carbon atoms with an alkanol of from 1 to 6 carbon atoms, from 1 to 10% by weight of at least one monomer selected from the group consisting of .alpha.,.beta.-monoethylenically unsaturated carboxylic acids of from 3 to 6 carbon atoms, their amides and nitriles, and from 0 to 10% by weight of one or more monomers selected from the group consisting of N-alkylolamides of .alpha.,.beta.-monoethylenically unsaturated carboxylic acids of from 3 to 6 carbon atoms having from 1 to 4 carbon atoms in the alkyl group and monomers of up to 25 carbon atoms containing two conjugated ethylenically unsaturated double bonds.
4 more elements
Dependencies are inferred from the claim text.