| 摘要 |
PURPOSE:To obtain the titled film suitable for shrink packaging of cylinders such as bottles, capable of being subjected to shrink packaging at relatively low temperature, containing a crystalline ethylene-propylene random copolymer. CONSTITUTION:(A) A crystalline ethylene-propylene random copolymer or a crystalline ethylene-propylene-alpha-olefin terpolymer is blended with (B) 1-50wt.% based on a composition of a petroleum resin or hydrogenated petroleum resin and (C) 0.01-0.5wt.% metallic salt of an organic carboxylic acid or magnesium silicate as a crystal nucleating agent to give a resin composition, which is melted and made into a raw film by extrusion molding and monoaxially stretched to give the aimed film. |
