SURFACE PROPERTY IMPROVING AGENT COMPOSITION FOR MOLDED BODIES FORMED OF POLYOLEFIN RESINS, RESIN COMPOSITION CONTAINING SAME, AND RESIN MOLDED BODY OF SAID RESIN COMPOSITION

摘要

This surface property improving agent composition for molded bodies formed of polyolefin resins contains 50.0-90.0 parts by mass of a non-polar wax (A) having a melting point of 50-100°C and 10.0-50.0 parts by mass of a vinyl copolymer (B) that is obtained by radically copolymerizing two kinds of monomers (b1) and (b2). The total amount of the non-polar wax (A) and the vinyl copolymer (B) is 100.0 parts by mass. The monomer (b1) is styrene and/or acrylonitrile, and the monomer (b2) is a methacryloxy polyorganosiloxane represented by general formula (1). The vinyl copolymer (B) contains 0.1-49.9 parts by mass of the monomer (b1) and 0.1-9.9 parts by mass of the monomer (b2) so that the total amount of the monomer (b1) and the monomer (b2) is 10.0-50.0 parts by mass. This surface property improving agent composition is added in an amount of 0.5-10.0 parts by mass per 100.0 parts by mass of a polyolefin resin. (In formula (1), m represents an integer.)