Jsr Corporation

Japan Synthetic Rubber Co., Ltd.

Japan Synthetic Rubber Co., Ltd., a Japanese Corporation

Shigeo Kawamura

Yasuo Matsuki

Michinori Nishikawa

Kyouyu Yasuda

Tsuyoshi Miyamoto

Tsukasa Toyoshima

Kengo Wakabayashi

Yasuaki Mutsuga

Liquid crystal alignment agent

A liquid crystal aligning agent, which contains (1) at least one polymer selected from a polyamic acid and an imidized polymer therefrom; (2) at least one first solvent selected from the group consisting of N-alkyl-2-pyrrolidones, lactones and 1,3-dialkyl-2-imidazolidinones; (3) at least one second solvent from (a) a phenyl ether solvent of the formula (I): ##STR1## and (b) an ester ether solvent of the formula (II) ##STR2## wherein R.sup.1 -R.sup.6, a, b and c are as defined herein.

Liquid crystal orienting agent

A liquid crystal-aligning agent comprising at least one of a polyamic acid obtained by reacting (A) a tetracarboxylic acid dianhydride consisting of 70 to 98 mole % of a dianhydride of a tetracarboxylic acid such as ##STR1## or the like, and 2 to 30 mole % of a dianhydride of a cyclobutanetetracarboxylic acid, and (B) a diamine compound, and a polymer obtained by imidizing the polyamic acid.

Liquid crystal-aligning agent

Growing community of inventors

Yokkaichi, Japan

Shigeo Kawamura