Title:
MULTILAYERED POLYESTER FILM
Document Type and Number:
WIPO Patent Application WO/2023/145952
Kind Code:
A1
Abstract:
Provided is a multilayered polyester film comprising a polyester film and a resin layer formed on at least one surface of the polyester film using a resin composition, the multilayered polyester film satisfying all of the requirements (1) to (3) mentioned below. (1) The resin layer has an uneven structure. (2) The resin composition contains the compounds (A) and (B) mentioned below.
(A) A weakly polar compound; and (B) at least one component selected from the group consisting of a binder resin and a crosslinking agent.
(3) The load length rate (Rmr (80)) of a roughness curve of the surface of the resin layer at a cutting level of 80% is 76% or less when measured with a scanning probe microscope.
It becomes possible to provide a multilayered polyester film, in which an uneven microstructure can be formed even when the thickness of the film is small and the handling properties during, for example, the winding of the film in a roll-like shape is excellent.
Inventors:
FUNATSU RYOSUKE (JP)
NAKAGAWA YOHEI (JP)
IMAI YUKI (JP)
NAKAGAWA YOHEI (JP)
IMAI YUKI (JP)
Application Number:
PCT/JP2023/002945
Publication Date:
August 03, 2023
Filing Date:
January 30, 2023
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
B32B27/00; B32B27/18; B32B27/36; H01G13/00
Domestic Patent References:
| WO2020009230A1 | 2020-01-09 |
Foreign References:
| JP2015033811A | 2015-02-19 | |||
| JP2013060555A | 2013-04-04 | |||
| JP2013010323A | 2013-01-17 | |||
| JP2021024177A | 2021-02-22 |
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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