| abstract |
An object of the present invention is to provide a shape retaining film excellent in adhesion to ink and other functional layers and a method for producing the same, while maintaining high shape retention. The shape retention film of this invention has an ethylene homopolymer or C3-C6 alpha-olefin content whose density is 950 kg / m < 3> or more and a weight average molecular weight (Mw) / number average molecular weight (Mn) is 5-20. It contains less than 2% by weight of an ethylene-α-olefin copolymer, has a tensile modulus of 6 to 50 GPa, a recovery angle by 90 ° bending is 8 ° or less, or a recovery angle by 180 ° bending is 65 ° or less. |