| abstract |
An object of the present invention is to provide a film that improves the moldability and mechanical strength of an ethylene polymer, has excellent impact strength and easy tearability, and is suitable for the production of pouches. A film formed of an ethylene polymer satisfying the conditions of a) to d) and having a short chain branch and a long chain branch introduced into the main chain, and a) a density of 0.880 to 0.970 g / cm 3 , b) MFR is 0.01 to 100 g / 10 min, c) The difference ΔEa between the activation energy Ea of the flow and the activation energy Ea L calculated by the equation (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 |