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Patent Searching and Data


Title:
POLYCARBONATE RESIN FILM, MULTILAYER FILM, DISPLAY DEVICE, POLYCARBONATE RESIN FILM MANUFACTURING METHOD, AND MULTILAYER FILM MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/080104
Kind Code:
A1
Abstract:
Provided is a polycarbonate resin film comprising a constituent unit represented by formula (1), said polycarbonate resin film having uniformity of the principal axis orientation and low phase difference properties. Also provided are a multilayer film, a display device, a polycarbonate resin film manufacturing method, and a multilayer film manufacturing method. The polycarbonate resin film contains a polycarbonate resin and satisfies conditions 1-3. Condition 1: the principal constituent unit of the polycarbonate resin is the constituent unit represented by formula 1. Condition 2: deviation from the average value of the principal axis orientation angle of the film is within ±11°. Condition 3: the phase difference in the film is 5-50 nm.

Inventors:
OGASAWARA KEN (JP)
KONOMI KEISUKE (JP)
ODAKA HIROKI (JP)
Application Number:
PCT/JP2022/040642
Publication Date:
May 11, 2023
Filing Date:
October 31, 2022
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
MGC FILSHEET CO LTD (JP)
International Classes:
B32B27/36; B29C48/08; B29C48/21; B29C48/305; B29C48/885; B29C48/92
Domestic Patent References:
WO2016111058A12016-07-14
Attorney, Agent or Firm:
SIKS & CO. (JP)
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