| 摘要 |
<p>PURPOSE:To provide the title film having a wide sealing temperature range, and easily re-openable without damaging the container when applied to a container made of styrene resin, and containing an ethylene-acrylic acid ester copolymer. CONSTITUTION:A heat sealing film containing (A) (pref. 5-50wt.% of) an ethylene-acrylic acid ester copolymer, (B) (pref. 5-70wt.% of) a styrene-butadiene block copolymer containing 60-95wt.% of styrene, (C) (pref. 5-50wt.% of) a styrene-butadiene block copolymer containing 10-50wt.% of styrene, and (D) (pref. 10-80wt.% of) a styrene and/or styrene-butadiene graft copolymer.</p> |
