| 摘要 |
PURPOSE:To obtain a polypropylene resin composition containing styrene based resin, solubilizing agent and fibrous filler having a specific properties and improved in stiffness and surface hardness while sufficiently retaining impact strength. CONSTITUTION:The resin composition obtained by blending 100 pts.wt. total amount of (A) 40-90wt.% polypropylene, preferably having 5-60g/10min melt index, (B) 5-40wt.% styrene resin, preferably having 0.5-20g/10min melt index, (C) 5-30wt.% solubilizing agent (e.g. styrene-butadiene copolymer) with (D) 3-35 fibrous filler (preferably potassium titanate) having 0.1-2mum average fiber size and 20-60 aspect ratio and dispersing the component B having <=5mum granule size in the component A having continuous phase and having the component C having 0.01-1mum thickness on the granule surface of the component B. |
