| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat shrinkable film which is suitable for packagings of drinks containers, cap seals, and the like and which comprises a polymer composition excellent in transparency, rigidity, natural shrinkage, shrinkage at low temperatures, hot water fusibility, and impact resistance. SOLUTION: The polymer composition consists of a copolymer (I) having a specific structure whose weight ratio of a vinyl aromatic hydrocarbon and a conjugated diene is 85/15-95/5 and a block copolymer (II) having a specific structure whose weight ratio of a vinyl aromatic hydrocarbon and a conjugated diene is 65/35-82/18. The heat shrinkable film therefrom is also provided. |
