| 摘要 |
PROBLEM TO BE SOLVED: To obtain a molded body made of a polyethylene. SOLUTION: This molded body made of a polyethylene is composed of an ethylene-based polymer composition which comprises (A) 20-90wt.% of an ethylene-based polymer having 0.95-0.98g/cm<3> density (dA) and 0.5-3.0dl/g intrinsic viscosity [η] and (B) 80-10wt.% of and an ethylene-based polymer having 0.91-0.965g/cm<3> density (dB) and 1.0-10dl/g intrinsic viscosity in which at least one of the components A and B is an ethylene-based polymer produced by using a metallocene catalyst. The composition has the ratio of DA and DB (DA/DB) of >1, 0.940-0.970g/cm<3> density, 0.005-20g/10 minutes MFR, in which MFR and melt tension(MT) satisfies the equation log(MT)>=-0.4 log(MFR)+0.7, and >1.35 diameter swell ratio. |
