COLORED PPS RESIN COMPOSITION AND COLORATION OF PPS RESIN

摘要

PURPOSE:To make it possible to form a colored PPS resin composition which can give a molding freed from darkening or formation of black streaks, by adding a calcium compound in coloring the surface of a PPS resin. CONSTITUTION:This colored PPS resin composition is formed by forming a colorant layer comprising a colorant, a calcium compound and a binder on the surface of a PPS resin. As said calcium compound, calcium oxide, calcium hydroxide or a calcium salt of a fatty acid is desirable. In order to color the PPS resin by the above constitution, PPS resin particles, a colorant, a calcium compound, a binder and a solvent for this binder are mixed together, and the solvent is evaporated to form a colorant layer on the surface of the PPS resin particles.