THERMOPLASTIC RESIN COMPOSITION

摘要

PURPOSE:To obtain the titled composition giving a molded product having matter surface while maintaining excellent mechanical properties and moldability, by compounding a rubber-modified aromatic vinyl thermoplastic resin composition with a block copolymer of an aromatic vinyl compound and a conjugated diene compound. CONSTITUTION:The objective composition is produced by compounding (A) 100pts.wt. of a rubber-modified aromatic vinyl thermoplastic resin composition containing 5-40wt% rubbery polymer and copolymerized with 0.3-3wt% ethylenic unsaturated carboxylic acid with (B) 1-10pts.wt. of a block copolymer of an aromatic vinyl compound and a conjugated diene compound and, if necessary, (C) 0.5-15pts.wt. of an inorganic filler having an average particle diameter of 0.5-15mum. The component B is a polymer containing styrene, butadiene and isoprene and containing 1-25wt% aromatic vinyl compound constituting a chain of 1-4 monomers connected with each other.