Multilayer film and method for producing same

Abstract

The present invention relates to a multilayered film having a high degree of freedom regarding selection of a material and a decoration method, which is not only excellent in handling properties and low-temperature adhesiveness to adherends of various materials but also applicable to decorative molding of every sort in a three-dimensional solid shape, and a method for producing the same. The present invention provides a multilayered film including, as an intermediate layer (X), a thermoplastic resin layer having a bending rigidity of 60 to 30,000 kPa·mm3; a layer (Y) composed of a thermoplastic polymer composition on both surfaces of the intermediate layer (X), the thermoplastic polymer composition containing 0 to 50 parts by mass of a polypropylene-based resin (B) based on 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer containing a polymer block (a1) composed of an aromatic vinyl compound unit and a polymer block (a2) composed of a conjugated diene compound unit; and a decorative layer (Z) closely arranged on the surface of either one of the layers (Y). The present invention also provides a method for producing the multilayered film, including bringing the thermoplastic resin layer (Y) as a surface layer in a molten state into contact with a roll whose surface is made of a hydrophobic resin.

Dependencies are inferred from the claim text.