Title:
POLYVINYL ALCOHOL FILM, POLARIZING FILM CONTAINING THE SAME, AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2023073942
Kind Code:
A
Abstract:
To obtain a polyvinyl alcohol film, a polarizing film containing the same, and their manufacturing method.SOLUTION: An IR absorption intensity ratio of a polyvinyl alcohol film is 0.85
Inventors:
WU CHENG-EN
Application Number:
JP2022011777A
Publication Date:
May 26, 2023
Filing Date:
January 28, 2022
Export Citation:
Assignee:
CHANG CHUN PETROCHEMICAL CO LTD
International Classes:
G02B5/30; C08F8/12; C08F216/06
Domestic Patent References:
| JPH06138321A | 1994-05-20 | |||
| JP2007084802A | 2007-04-05 | |||
| JP2012032789A | 2012-02-16 |
Foreign References:
| WO2018021274A1 | 2018-02-01 | |||
| WO2020184587A1 | 2020-09-17 |
Attorney, Agent or Firm:
Katsumi Iseki
Shuhei Kaneko
Wataru Ohnishi
Shuhei Kaneko
Wataru Ohnishi
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