| 摘要 |
PURPOSE:To improve moldability, tensile strength of a molded item, etc., by compounding a specific modified PP, an amorphous ethylene-alpha-oleiefin copolymer, a hydrogenated styrene block copolymer, glass fibers, and a rigid mica. CONSTITUTION:100 pts.wt. crystalline ethylene-propylene block copolymer (a) contg. 2-20wt.% ethylene units is modified with 0.01-3 pts.wt. modifier comprising an org. silane compd. or an unsatd. acid to give a modified block copolymer (b). At least 20wt.% copolymer (b) is, if necessary, blended with copolymer (a), giving a modified PP. 45-75wt.% the modified PP, 1-10wt.% amorphous ethylene-alpha-olefin copolymer having an ethylene unit content of 30-80wt.% and Mooney viscosity (100 deg.C) of 10-150, 1-10wt.% hydrogenated styrene block copolymer, 2-12wt.% glass fibers having a mean fiber diameter of 4-15mmu and a mean fiber length of 2-5mm, 15-35wt.% rigid mica having a tensile strength of 30kg/mm<2> or higher, an average particle size of 50-250mmu, and an aspect ratio of 15-80, and, if necessary, a nucleating agent are compounded to give the title compsn. |
