Title:
ULTRAVIOLET ABSORBING POLYESTER FILM, POLARIZER PROTECTIVE FILM, POLARIZING PLATE AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/243508
Kind Code:
A1
Abstract:
The present invention provides a polyester film which is characterized by comprising a layer that is formed of a biomass polyethylene terephthalate resin composition which contains a polyethylene terephthalate resin that uses a biomass resource as a starting material for at least one of ethylene glycol and terephthalic acid, and an ultraviolet absorbent that includes a cyclic imino ester-based ultraviolet absorbent.
Inventors:
MURATA KOICHI (JP)
NAKASE KATSUKI (JP)
NAKASE KATSUKI (JP)
Application Number:
PCT/JP2023/021130
Publication Date:
December 21, 2023
Filing Date:
June 07, 2023
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08L67/02; B32B27/18; B32B27/36; C08G63/183; C08J5/18; C08J7/046; C08K5/35; G02B1/14; G02B5/30; G02F1/1335; G02F1/13363; G09F9/00; H05B33/02; H10K50/10; H10K59/00
Domestic Patent References:
| WO2017057223A1 | 2017-04-06 | |||
| WO2018159569A1 | 2018-09-07 |
Foreign References:
| US20130344345A1 | 2013-12-26 | |||
| JP2022085854A | 2022-06-08 | |||
| JP2003191390A | 2003-07-08 | |||
| JP2009020399A | 2009-01-29 | |||
| JP2008195830A | 2008-08-28 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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