Aqueous adhesive and coating formulations

摘要

Aqueous polymer dispersion comprises at least a dispersion containing polyvinyl acetate and/or at least a polyvinyl acetate copolymer; and at least an aqueous silicon dioxide-dispersion with an average particle diameter of silicon dioxide particle of 1-400 nm. Independent claims are included for: (1) a method for preparing polymer dispersion comprising mixing silicon dioxide-dispersion optionally with the dispersion containing at least a hydroxy group-containing oligomer or polymer, optionally additive and coating- or adhesive auxiliary material, and finally mixing a dispersion containing polyvinyl acetate and/or at least a polyvinyl acetate copolymer; and (2) a substrate, which is coated or glued with the polymer dispersion.