| 摘要 |
PURPOSE:A propylene resin composition that is composed of crystalline propylene resin, an ethylene-butadiene block compolymer or ethylene-vinyl acetate copolymer, and a specific calcium carbonate, thus having high mechanical properties and coating film adhesion. CONSTITUTION:(A) 50-90wt% of a crystalline propylene resin of 0.5-20MI, which is measured at 230 deg.C and 2.16kg, and less 20wt% ethylene content, (B) 5- 15wt% of a styrene-butadiene block copolymer of 20-65wt% styrene content or an ethylene-vinyl acetate copolymer of 1-30MI and 10-30wt% vinyl acetate content, and (C) 5-35wt% of calcium carbonate that is treated with a fatty ester as methyl stearate or n-butyl oleate on the surface and has 0.5-1.5mum average particle size are meld kneaded. |
