| abstract |
(57) [PROBLEMS] To provide an inexpensive styrene resin composition capable of providing a film having excellent shrinkage characteristics, rigidity and heat resistance, and a shrink film thereof. SOLUTION: Styrene / butadiene / block copolymer 50 to 95 wt% and polystyrene containing branched polystyrene of at least 50 wt% or more 5 to 50 wt% A styrene-based resin composition comprising: and a shrink film comprising the same. |