| 摘要 |
PURPOSE:To provide the titled film which is made porous after heat-bonding to form an air-permeable bonded layer, by molding a resin compsn. composed of an ethylene polymer resin and a tackifying resin into a film having a specified thickness. CONSTITUTION:1-20pts.wt. tackifying resin having a softening point of 60 140 deg.C such as a coumarone-indene resin is blended with 100pts.wt. ethylene polymer resin having a m.p. of 80-120 deg.C such as an ethylene-vinyl acetate resin. The resulting resin compsn. is extruded into a film having a thickness of 20-200mu by a T-die extrusion method, an inflation method, etc. EFFECT:This film has such a heat resistance that 180 deg. peel strength is 300g/inch width or higher even in an atmosphere of 80 deg.C. USE:Bonding of automotive trim materials, ceiling materials, furnishing materials, etc. |
