| 摘要 |
PROBLEM TO BE SOLVED: To obtain a laminated stretched film for food packaging having no chlorine, and excellently balanced performances among the film formability, transparency, mechanical strengths, packaging workability, packaging finish and deformation recovery properties. SOLUTION: The stretched film for food-packaging has at least one layer of the mixed resin layers which contain as the main following components, 30-60 wt.% of component (A), 15-30 wt.% of component (B), 5-20 wt.% of component (C) and 0-30 wt.% of component (D): (A) a polypropylene-based resin; (B) a block copolymer or its hydrogenated derivative of a vinyl aromatic-based compound and a conjugated diene; (C) a random copolymer or its hydrogenated derivative of a vinyl aromatic-based compound and a conjugated diene; and (D) a petroleum resin.
|
