Polyalcohol film and laminated film comprising the same

摘要

A film having a dynamic modulus of elasticity at 75 DEG C. of 108 to 1011 dyne/cm2 and an oxygen permeability at 20 DEG C., 75% RH of not more than 5x1012 cc.cm/cm2.sec.cmHg comprises a polyalcohol obtained by reducing a polyketone comprising a carbon monoxide-ethylene alternate copolymer, the polyalcohol having an intrinsic viscosity of 0.3 to 3.0 dl/g and a melting point of 110 DEG to 180 DEG C.; and a laminated film comprising the same. These films have excellent high-speed bag formability, heat-pack sealability, film formability, film appearance, adhesiveness and gas barrier properties.