| 摘要 |
PURPOSE:To obtain a resin composition, having excellent low temperature shrinkability, transparency, etc., with hardly any amount extracted with a solvent and suitable as shrink packaging films suited for food sanitation uses, by blending specific amounts of a specified propylene random copolymer with a specific propylene-alpha-olefin copolymer. CONSTITUTION:A resin composition obtained by blending (A) 5-90wt.%, 10-85wt.% copolymer of propylene random copolymer having 4-15wt.% comonomer content, <=122 deg.C Vicat softening point and <=15wt.% content of part soluble in cold xylene with (B) 95-10wt.%, preferably 90-15wt.% copolymer of propylene and a >=4C alpha-olefin or further ethylene having 8-35mol.% >=4C alpha-olefin content and <=5mol.% ethylene content, 15-70mol.% content of a portion soluble in cold xylene, <=5wt.% (DELTAHa2e) and <=40wt.% amount extracted with a solvent, forming a film and subjecting the resultant film to drawing treatment. |
