Patent ID: 11866576
Assignee: WACKER CHEMIE AG
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  D | IPC C  D

Claim 9:
10. A process for producing an aqueous binder composition of claim 1, comprising polymerizing, by radically initiated polymerization, a1) 60 to 94% by weight vinyl acetate, a2) 5 to 30% by weight ethylene, a3) 0 to 20% by weight of further ethylenically unsaturated comonomers copolymerizable therewith, in the presence of polyvinyl alcohol in aqueous medium, wherein the polymerization is carried out in the presence of a copolymer B) having b1) 20 to 50% by weight of monomer units derived from ethylenically unsaturated carboxamides, b2) 20 to 50% by weight of monomer units derived from ethylenically unsaturated monocarboxylic acids, b3) 20 to 50% by weight of monomer units derived from ethylenically unsaturated dicarboxylic acids or anhydrides thereof, where the figures in % by weight for the monomers a1), a2) and a3) total 100% by weight, and the figures in % by weight for the monomer units b1), b2) and b3) total 100% by weight.