film and decorative film capable of covering an article having a three-dimensional format by thermal expansion

摘要

a film capable of covering an article having a three-dimensional thermal expansion format provided by an embodiment of the present disclosure comprising an outermost layer disposed on an outermost surface, and a polyurethane thermal adhesive layer containing a selected thermoplastic polyurethane of the group consisting of polyester-based polyurethanes and polycarbonate-based polyurethanes, which is thermally adhered to the article during thermal expansion, and the fracture strength of the polyurethane thermal adhesive layer is not less than 1 mpa at 135 ° c, and the storage module at 150 ° c and a frequency of 1.0 hz range from 5 × 103 pa to 5 × 105 pa, and a tand loss coefficient is not less than 0.1.