PVC VINYL ACETATE BINDERS IN AN ABOVE-CRITICAL PVC COATINGS COMPOSITION

摘要

The present invention relates to a supercritical coating composition comprising an aqueous dispersion of polymer particles, pigment particles and extender particles, wherein the polymer particles comprise 80 to 99.8% by weight of structural units of vinyl acetate and 0.1 to 6% And a structural unit of a phosphorous acid monomer. The composition exhibits a surprising improvement in hiding power as the particle size of the polymer particles increases.