| abstract |
(57) Summary: [Objective] A finishing agent for textiles, leather, paper and mineral substances, which comprises a mixture of fluorine-containing copolymers and an aqueous dispersion produced from them. Composition: It is characterized by the fluorine content of this mixture being 25-40% by weight, based on the total weight of the copolymer. These fluorine-containing copolymers are prepared by: a) perfluoroalkyl-containing (meth) acrylates having the formula C n F 2n + 1 —X—O—CO—CR 1 ═CH 2 (I), B) monomers having the formula CH 2 ═CR 4 —COO—R 5 (II), embedded image And d) CH 2 ═CR 11 —COO—CH 2 CH 2 —N (R 9 , R 10 ) (IVa). |