Polyimide precursor solution
A technology of polyimide precursor and polyamic acid, applied in the direction of coating, etc., can solve the problem that it is difficult to obtain polyimide precursor with high degree of polymerization, and achieve easy process control, excellent environmental suitability, flow good flat effect
Active Publication Date: 2016-01-06
UNITIKA LTD
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Abstract
The purpose of the invention is to provide a polyimide precursor solution having excellent environmental compatibility and good storage stability and leveling properties, the polyimide precursor solution making it possible to produce a polyimide molded article having excellent mechanical strength. The invention provides a polyimide precursor solution obtained by dissolving polyamic acid and a salt of a weakly basic compound having an acid dissociation constant (pKa) of 4.5-8.5 in a solvent containing a polyhydric alcohol.
Application Domain
Coatings
Technology Topic
Acid dissociation constantAlcohol +5
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