| abstract |
The invention relates to an aqueous binder composition for binding fibers, comprising a vinyl acetate-ethylene copolymer A), which can be obtained by means of the radically initiated polymerization of a1) 60 to 94 wt.% vinyl acetate, a2) 5 to 30 wt.% ethylene and a3) 0 to 20 wt.% of additional, ethylenically unsaturated copolymerizable comonomers, in the presence of polyvinyl alcohol in an aqueous medium, characterized in that the polymerization is carried out in the presence of an interpolymer B) having b1) 20 to 50 wt.% of monomer units derived from ethylenically unsaturated carboxylic amides, b2) 20 to 50 wt.% of monomer units derived from ethylenically unsaturated monocarboxylic acids, b3) 20 to 50 wt.% of monomer units derived from ethylenically unsaturated dicarboxylic acids or their anhydrides, the specifications in wt.% for the monomers a1), a2) and a3) adding up to 100 wt.% and the specifications in wt.% for the monomer units b1), b2) and b3) adding up to 100 wt.%. |