Title:
MULTILAYER FILM, RESIN COMPOSITION, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/095941
Kind Code:
A1
Abstract:
Provided is a multilayer film that can be recycled regardless of the diverse types of functional layers used, that has favorable durability and long-term storability, and that can significantly prevent the post-recycling quality from falling below the pre-recycling quality. The multilayer film is subjected to a recycling process by being brought into contact with water at a temperature of at least 100°C, and the multilayer film includes: a base film in which are layered at least a separation layer A formed by a first composition containing an aliphatic polyester resin, and a support layer B formed by a second composition containing an aromatic polyester resin; and a functional layer C formed by a third composition that causes a function to be produced on the surface of the base film. The separation layer A is provided between the functional layer C and the support layer B. The separation layer A and the support layer B constitute the base film. For the functional layer C, a release layer, a hard coat layer, an adhesive layer, a decorative layer, a light shielding layer, or an ultraviolet shielding layer, for example, may be used.
Inventors:
INAGAKI JUN (JP)
IKEUCHI YUSUKE (JP)
NAKATANI MITSUHARU (JP)
ITO KATSUYA (JP)
IKEUCHI YUSUKE (JP)
NAKATANI MITSUHARU (JP)
ITO KATSUYA (JP)
Application Number:
PCT/JP2023/039018
Publication Date:
May 10, 2024
Filing Date:
October 30, 2023
Export Citation:
Assignee:
TOYOBO CO LTD (JP)
International Classes:
B32B27/36; B29B17/02; B32B27/00; C08J5/18; C08J7/00; C08J7/04; C08L101/16; H01G13/00
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (5-13-9 Nishinakajima Yodogawa-ku, Osaka-sh, Osaka 11, JP)
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