| 摘要 |
PURPOSE:To obtain a thermoplastic resin composition having excellent extrusion moldability, by kneading a specific polypropylene with a specific high-pressure low-density polyethylene at a specific ratio and mixing the kneaded composition with a linear low-density polyethylene and a high-pressure low-density polyethylene separately or after preliminary kneading. CONSTITUTION:The objective thermoplastic resin composition having a molded article such as an easy-seal and easy-open container, etc., can be produced by mixing (A) 55-65wt.% of a resin composition produced by kneading (i) 80-95wt.% of a polypropylene having a melt flow index of 0.5-50 and (ii) 5-20wt.% of a high-pressure low-density polyethylene having a melt flow index of 2-15 and a density of 0.915-0.927 with (B) 23-33wt.% of a linear low- density polyethylene having a melt flow index of 2.0-20 and a density of 0.90-0.93 and (C), 10-14wt.% of a high-pressure low-density polyethylene having a melt flow index of 2-15 and a density of 0.915-0.927. The components B and C may be mixed to the component A separately or after kneading with each other. |
