| abstract |
Aqueous binder compositions for binding fibers comprise a vinyl acetate-ethylene copolymer of 60 to 94% by weight vinyl acetate, 5 to 30% by weight ethylene and 0 to 20% by weight of further ethylenically unsaturated comonomers copolymerizable therewith, polymerized in the presence of polyvinyl alcohol in aqueous medium, wherein the polymerization is carried out in the presence of a copolymer B) containing 20 to 50% by weight of monomer units derived from ethylenically unsaturated carboxamides, 20 to 50% by weight of monomer units derived from ethylenically unsaturated monocarboxylic acids, and 20 to 50% by weight of monomer units derived from ethylenically unsaturated dicarboxylic acids or anhydrides thereof. |