| abstract |
(57) [Summary] [Object] To provide an ethylene polymer having excellent moldability, which is useful for forming an inflation film. [Structure] An ethylene polymer obtained by the first and second steps, which satisfies the following conditions (a) to (d). (A) Weight average molecular weight of the first step polymer (Mw, 1 ) Is 6 × 10 5 to 4 × 10 6 (b) Weight average molecular weight of the first step polymer (Mw, 1 ) And the weight average molecular weight (Mw, 2 ) of the second step polymer (Mw, 2 / Mw, 1 ) is 0.7 to 1.4 (c) The integral fraction from the low molecular weight is the second step A polymer having a molecular weight (M 2 ) equal to ½ of the weight fraction (W 2 ) of the polymer is 5 × 10 3 to 3 × 10 4 (d) The weight fraction (W 1 ) of the first step polymer is 0.45. .About.0.70, and the weight fraction (W 2 ) of the second step polymer is 0. 30 to 0.55 |