POLYPROPYLENE RESIN COMPOSITION FOR AUTOMOBILE BATTERY CASE AND HIGH THERMAL INSULATIVE AUTOMOBILE POLYPROPYLENE BATTERY CASE USING THEREOF HIGH THERMAL INSULATION

摘要

PURPOSE: A polypropylene resin composition is provided to introduce pore inside a polypropylene molding form and prevent material property reduction. CONSTITUTION: A polypropylene resin composition for vehicle battery case contains 75-94 weight% of polypropylene resin premix, 5-23 weight% of inorganic filler, and 0.5-2 weight% of thermal resistance agent. The polypropylene resin premix contains propylene homopolymer having 90-98% of isotatic index in which methyl group is regularly arranged; 90-99 weight% of polypropylene copolymer and 1-10 weight% of ethylene-propylene-rubber.