MATTE RESIN COMPOSITION, AND MATTE RESIN MOLDING HAVING UNIFORM MATTE SURFACE, OBTAINED BY MOLDING IT

摘要

PROBLEM TO BE SOLVED: To provide a matte resin composition having good physical property balance between the impact resistance and the rigidity, and a matte resin molding having a uniform matte surface, obtained by molding it. SOLUTION: The matte resin composition consists of 70-99 wt.% of a rubber- toughened styrene resin (A) consisting of 70-90 wt.% continuous phase component comprising a copolymer of an aromatic vinyl and vinyl cyanide, or an aromatic vinyl, vinyl cyanide and other monomer copolymerizable therewith and 10-30 wt.% disperse phase component comprising a rubbery polymer component grafted with the above-mentioned monomers, occluding the copolymer and having a weight-mean particle diameter of 1-20 μm; and 1-30 wt.% of a matting agent (B) having a mean particle diameter of 1-90 μm.