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AssigneeBASF SE
InventorsChristoph Hamers, Dieter Boeckh, Kati Schmidt
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A process for the soil release treatment of surfaces of textile and nontextile materials, in which cationically modified hydrophilic nanoparticles based on crosslinked polymers of (a) 60 to 99.99% by weight of one or more carboxyl-containing ethylenically unsaturated monomers or salts thereof, (b) 0 to 40% by weight of one or more water-insoluble monoethylenically unsaturated monomers, (c) 0.01 to 30% by weight of one or more polyethylenically unsaturated monomers, (d) 0 to 25% by weight of one or more sulfonic acid- and/or phosphonic acid-containing monomers or salts thereof, (e) 0 to 30% by weight of one or more water-soluble nonionic monomers are applied to the surface of the materials from an aqueous dispersion, where the dispersion of the hydrophilic nanoparticles can be stabilized with anionic, nonionic and/or betainic emulsifiers and/or protective colloids, and where the hydrophilic nanoparticles have a particle size of from 10 nm to 2 μm and have been cationically modified by coating their surface with one or more cationic polymers, one or more polyvalent metal ions and/or one or more cationic surfactants.
A process for the soil release treatment of surfaces of textile and nontextile materials, in which cationically modified hydrophilic nanoparticles based on crosslinked polymers of
Cationically modified hydrophilic nanoparticles based on crosslinked polymers of
An aqueous dispersion of cationically modified hydrophilic nanoparticles based on crosslinked polymers of
Dependencies are inferred from the claim text.