| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkali soluble resin capable of being dissolved even when 1.0 mass% of sodium carbonate solution is used as an alkali solution and a manufacturing method of the alkali soluble resin.SOLUTION: There is provided a polyamide-imide resin obtained by reacting a reaction raw material (α) containing an imidized compound (A) and a diisocyanate compound (h), the imidized compound (A) is obtained by reacting a diamine compound (B) and acid anhydride (C), the diamine compound (B) contains polysiloxanediamine having an aromatic ring (a) and carboxyl group-containing diamine (b), the acid anhydride (C) for obtaining the imidized compound (A) contains cyclohexane-1,2,4-tricarboxylic acid anhydride (e), the polyamide-imide resin contains a carboxylic group and a solid content acid value is 30 mgKOH/g or more.SELECTED DRAWING: None |
