Sumitomo Bakelite Company Limited

Akron Polymer Systems, Inc.

Mizuho Inoue

Frank Wayne Harris

Dong Zhang

Jun Okada

Jiaokai Jing

Yusuke Inoue

Limin Sun

Toshihiko Katayama

Manabu Naito

Hideo Umeda

Ritsuya Kawasaki

The present disclosure, in one aspect, relates to a polyamide solution including an aromatic polyamide and a solvent, wherein the aromatic polyamide includes at least two types of constitutional units, and a change rate of coefficient of thermal expansion (CTE) of a cast film produced by casting the polyamide solution on a glass plate and CTE of the same cast film after being subjected to a heat treatment at temperature of 200&#xb0; C. to 450&#xb0; C. (=CTE after heat treatment/CTE before heat treatment) is 1.3 or less.

Solution of aromatic polyamide for manufacturing display element, optical element, illumination element or sensor element

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Kobe, Japan

Mizuho Inoue