Toray Industries, Inc.

Chungseo Lee

Masao Tomikawa

Takuo Watanabe

A polyimide resin includes an acid anhydride residue; and a diamine residue, the polyimide resin including a residue of a polysiloxane diamine represented by Formula (1) in an amount of not less than 60% by mole in the total amount of the diamine residue: wherein, n is a natural number and an average value thereof calculated from the average molecular weight of the polysiloxane diamine is 45 to 200; Rand R, the same or different, each represent an alkylene group having 1 to 30 carbon atoms or a phenylene group; and Rto R, the same of different, each represent an alkyl group having 1 to 30 carbon atoms, a phenyl group or a phenoxy group.

Growing community of inventors

Gumi-si, South Korea

Chungseo Lee