Abstract: An opacified latex paint comprising small particle film-forming latex binders in combination with minor amounts of opacifying pigment, and substantial amounts of non-film-forming polymeric particles (plastic pigment) provides a semi-gloss latex paint composition having excellent hard enamel surfaces along with desirable film integrity properties. The plastic pigment particles are between about 0.1 and 0.5 microns and contain 0.2 to 2% copolymerized monomers containing carboxylic acid groups. The semi-gloss plastic pigment latex paint is compounded at pigment-volume-content (PVC) between about 30% and 45% and considerably higher than conventional high quality enamel latex paints. The opacified semi-gloss paint films exhibit excellent physical properties such as hard enamel surfaces, scrub resistance, burnish resistance, mar resistance, stain resistance, and other desirable paint film integrity properties.

Abstract: An opacified latex paint comprising acrylic film-forming latex binders in combination with minor amounts of opacifying pigment and substantial amounts of non-film-forming polymeric particles (plastic pigment) provides a latex paint composition having desirable film integrity properties. The plastic pigment latex paint is compounded at a substantially high pigment-volume-content (PVC) greater than 75% PVC and yet produces a continuous crack-free paint film even though the dried paint film is highly loaded with non-film-forming components. The opacified paint films maintain excellent physical properties such as scrub resistance, burnish resistance, mar resistance, stain resistance, and other desirable paint film integrity properties.