Epoxy ester compound, cellulose ester resin composition, optical film, and liquid-crystal display device

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United States of America Patent

PATENT NO 9815973
SERIAL NO

15516181

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Abstract

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The present invention has an object to provide a compound which has excellent compatibility even with a cellulose ester resin having a low acetylation degree, is capable of providing an optical film having a high Rth value and high bleed resistance, and can be suitably used as a retardation enhancer; a cellulose ester resin composition including the compound; an optical film including the resin composition; and a liquid-crystal display device including the optical film. The present invention provides an epoxy ester compound represented by the following Formula (1) (in the formula, R1 to R4 each independently represent an alkyl group having 1 to 3 carbon atoms; and A's each represent an aromatic group (a1) or an aliphatic group (a2) having 1 to 4 carbon atoms, and the average presence ratio [(a1)/(a2)] of the aromatic groups (a1) to the aliphatic groups (a2) is 99.9/0.1 to 80/20 in terms of a molar ratio).

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Patent Owner(s)

  • DIC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ota, Miki Chiba, JP 8 27
Suzuki, Osamu Chiba, JP 242 3029
Tajiri, Yusuke Chiba, JP 13 4
Yoshimura, Hiroshi Chiba, JP 124 1722

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