A single-layer or multi-layer, heat-shrinkable film having a layer of a thermoplastic resin material comprising an alicyclic structure-containing polymer having a repeating unit (a) consisting of an alicyclic structure, wherein a proportion of a repeating unit (b) of a ring structure having no norbornane ring structure in the repeating unit (a) is at least 10% by weight. The film is excellent in heat shrinkability, mechanical strength (tensile strength, film impact) and moisture resistance.
一种单层或多层热收缩薄膜,其一层热塑性
树脂材料由含脂环结构的聚合物组成,该聚合物具有由脂环结构组成的重复单元(a),其中重复单元(a)中不含降
冰片烷环结构的环结构重复单元(b)的重量比例至少为 10%。该薄膜具有优异的热收缩性、机械强度(拉伸强度、薄膜冲击力)和防潮性能。