| abstract |
[Problem] To provide a film excellent in impact strength and easy tearability and suitable for the production of pouches. The component (A): high-pressure low-density polyethylene of 5 to 95% by weight, the component (B): a) to d) are satisfied, and short chain branch and long chain branch are introduced into the polymer main chain. A polyethylene film comprising 5 to 95% by weight of an ethylene polymer. a) Density is 0.880-0.970 g / cm 3 b) MFR is 0.01-100 g / 10 min c) Difference ΔEa between flow activation energy Ea and activation energy Ea L according to formula (1) Is 1.5 to 12.5. SCB represents the number of short chain branches, B represents the length of the short chain branches, d) λmax ≧ 1.2exp (0.0721 × ΔEa) in which the extensional viscosity λmax and ΔEa satisfy Equation (2) Equation (2) [Selection figure] None |