Polyvinyls, titanium dioxide pigments

Unpigmented rigid polyvinyl formulations typically have very poor long-term durability. Titanium dioxide pigments are normally compounded into these compo-... [Pg.152]

In emulsion adhesives and sealants, ionic and nonionic surfactants are used to disperse pigments and fillers. In polyvinyl acetate emulsion sealants, most grades of calcimn carbonate can be dispersed using anionie or non ionie surfactants. Titanium dioxide is more difficult to disperse due to its finer particle size ( 0.2pm) and anionic dispersants such as potassium tripolyphosphate and polymeric salts of acryhc acid are used. [Pg.330]