Patent ID: 9688815
Date: 2017-06-27
CPC Classifications: C08G,C08J,C08L,Y10T

Claim:
1. A method for producing a polyimide precursor, comprising: reacting tetracarboxylic dianhydride represented by the following General Formula (1) with a diamine compound represented by the following General Formula (2) in a compressive fluid to thereby produce a polyimide precursor represented by the following General Formula (3): wherein, X in the General Formulae (1) and (3) denotes a tetravalent aromatic group or a tetravalent alicyclic group, Y in the General Formulae (2) and (3) denotes a divalent organic group, and n denotes the number of repetitions, and the compressive fluid contains an active hydrogen-free tertiary amine, and the active hydrogen-free tertiary amine is at least one selected from the group consisting of tri-ethylamine, tripropylamine, tributylamine, N-methimorpholine, 1,4-diazabicyclo[2,2,2] octane and diazabicycloundecene; and discharging the polyimide precursor, represented by the General Formula (3), from an injection nozzle together with the compressive fluid at normal pressure to thereby produce polyimide precursor particles.