| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-shrinkable film suitable for packaging for a beverage container, cap sealing and the like, excellent in low temperature shrinkability, spontaneous shrinkability, rigidity and comprising a block copolymer composition capable of being formed into a thin wall and excellent in dimensional stability and the low temperature shrinkability. SOLUTION: Disclosed are a composition comprising (I) a block copolymer having a specific structure in which weight ratio between a vinyl aromatic hydrocarbon and a conjugated diene is 65/35 to 80/20 and (II) a block copolymer having a specific structure in which weight ratio between a vinyl aromatic hydrocarbon and a conjugated diene is more than 80/20 and is 95/5 or less, and a heat-shrinkable film comprising the composition. |
