Adeka Corporation

Masaki Segawa

Yuki Tanaka

Takashi Murakami

Yuki Endo

Masashi Harada

Yoshinori Negishi

Yasuhiro Honma

Yuto Ishizuka

Koichiro Abe

Mariko Ishii

Provided are: a thermal stabilizer composition which does not generate an odor of a phosphorus-based antioxidant; and a synthetic resin composition comprising the same. The thermal stabilizer composition comprises: 100 parts by mass of a phosphorus-based antioxidant having a phosphite structure; and 0.001 to 10 parts by mass of a phenolic antioxidant having a substructure represented by the following Formula (1): 

Thermal stabilizer composition and synthetic resin composition comprising same

Provided are: a retardation-increasing agent that has excellent compatibility and, when incorporated into a resin film, is capable of not only adjusting the thickness-direction phase difference toward a positive direction but also imparting the film with high retardation; a cellulose-based resin composition comprising the retardation-increasing agent; and a film that is obtained from the cellulose-based resin composition and has excellent optical properties. The retardation-increasing agent comprises a compound represented by the following Formula (1) or (2):  

Retardation-increasing agent, cellulose-based resin composition using same, and film

Disclosed is a stretched optical compensation film which is a phase difference film containing a cellulose-based resin and having excellent optical properties. The stretched optical compensation film of the present invention contains 0.5 to 30 parts by mass of a &#x3b2;-diketone compound represented by Formula (I) with respect to 100 parts by mass of the cellulose-based resin. Positions Rand Reach independently represent an alkyl group having 1 to 20 carbon atoms which is optionally substituted, an arylalkyl group having 7 to 20 carbon atoms which is optionally substituted or an aryl group having 6 to 20 carbon atoms which is optionally substituted. Position Rrepresents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms. 

Stretched optical compensation film

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Saitama, Japan

Masaki Segawa