Title:
OPTICAL FILM, METHOD FOR MANUFACTURING OPTICAL FILM, AND RESIN COMPOSITION FOR RETARDATION FILM
Document Type and Number:
Japanese Patent JP2023180149
Kind Code:
A
Abstract:
To provide an optical film which has a glass transition temperature adjusted to a desired range in such a manner that it can be processed at a suitable temperature, and is excellent in a balance among bleed-out resistance, solvent crack resistance and thermal stability, a method for manufacturing the optical film, and a resin composition for a retardation film.SOLUTION: An optical film is provided, containing a cycloolefin resin (A) and an additive (B), wherein the cycloolefin resin (A) contains a cycloolefin resin (A1) having a weight average molecular weight of 100,000 or more, solubility of the additive (B) to hexane of 10 ml at a temperature of 25°C is 100 mg/10 ml or less, the additive (B) contains a compound (B-a) having two or more phenol structures, the content of the additive (B) is 14 pts.wt. or less with respect to 100 pts.wt. of the cycloolefin resin (A), and the optical film has a glass transition temperature of lower than 154°C.SELECTED DRAWING: None
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Inventors:
SHIMADA KENICHIRO
TSUMURA MANABU
SEKIGUCHI YASUHIRO
SAITO AKIHIKO
TSUMURA MANABU
SEKIGUCHI YASUHIRO
SAITO AKIHIKO
Application Number:
JP2022093293A
Publication Date:
December 20, 2023
Filing Date:
June 08, 2022
Export Citation:
Assignee:
KANEKA CORP
International Classes:
C08L65/00; C08J5/18; C08K5/13; C08K5/156; C08K5/3477; C08L45/00; G02B5/30
Attorney, Agent or Firm:
Yuichi Niiyama
Ryuta Kato
Ryuta Kato
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