STYRENIC THERMOPLASTIC RESIN COMPOSITION WITH IMPROVED IMPACT STRENGTH AND FLOWABILITY BY APPLYING A STYRENE-COPOLYMER RESIN HAVING A BRANCHED STRUCTURE AND MOLDED PRODUCTS MANUFACTURED FROM THE COMPOSITION

摘要

PURPOSE: A styrenic thermoplastic resin composition and molded products manufactured from the composition are provided to improve impact strength and flowability as well as moldability by adding a styrene-copolymer resin having a branched structure including a silicon-based compound to a blend of a styrenic copolymer resin and a rubber modified vinyl graft copolymer resin. ;CONSTITUTION: A styrene based thermoplastic resin composition comprises: (A) about 10 to about 99 % by weight of a thermoplastic resin including one or more selected from the group consisting of (a1) styrenic copolymer resin; and (a2) rubber-modified vinyl graft copolymer; and (B) about 1 to about 90 % by weight of a branched styrenic copolymer resin prepared by including a silicon based compound. The branched styrenic copolymer resin prepared by including a silicon based compound is a copolymer or a combination thereof prepared by copolymerizing (b1) an aromatic vinyl based monomer, (b2) an unsaturated nitrile based monomer, (b3) a (meth)acrylic monomer, and (b4) a silicon based compound having two or more unsaturated functional groups.;COPYRIGHT KIPO 2011