| 摘要 |
PROBLEM TO BE SOLVED: To obtain polyethylene powder having a specific property, excellent flowability and handleability, etc., and suitable for powder molding by including respectively specific amounts of an ethylene-α-olefin copolymer produced by using a specific metallocene catalyst, a specific polyethylene and an elastomer. SOLUTION: The objective powder having a bulk density of 0.20-0.50 g/cm3 contains (A) 100 pts.wt. of an ethylene-α-olefin copolymer having a density of 0.880-0.960 g/cm3 and a melt flow rate(MFR) of 0.1-200/10 min and produced by using a metallocene catalyst, (B) 0-300 pts.wt. of a high-pressure-produced low-density polyethylene having a density of 0.900-0.940 g/cm3 and an MFR of 0.1-100/10 min and (C) 1-50 pts.wt. of an elastomer (e.g. polystyrene- polybutadiene block copolymer). |
