PRODUCTION METHOD FOR POLYMERIZABLE-UNSATURATED-GROUP-CONTAINING ALKALI-SOLUBLE RESIN, POLYMERIZABLE-UNSATURATED-GROUP-CONTAINING ALKALI-SOLUBLE RESIN, PHOTOSENSITIVE RESIN COMPOSITION INCLUDING POLYMERIZABLE-UNSATURATED-GROUP-CONTAINING ALKALI-SOLUBLE RESIN AS ESSENTIAL INGREDIENT, AND CURED FILM OF PHOTOSENSITIVE RESIN COMPOSITION INCLUDING POLYMERIZABLE-UNSATURATED-GROUP-CONTAINING ALKALI-SOLUBLE RESIN AS ESSENTIAL INGREDIENT

摘要

A production method for a polymerizable-unsaturated-group-containing alkali-soluble resin, the production method involving reacting an epoxy compound that has the structure indicated by general formula (1) and an acrylic acid or a methacrylic acid with (a) a dicarboxylic or tricarboxylic acid or an acid monoanhydride thereof and (b) a tetracarboxylic acid or an acid dianhydride thereof. (In general formula (1), R1–R8 represent a C4–12 hydrocarbon group, two or more of R1–R8 may be the same, n represents a number that has an average value of 0–3, and G represents a glycidyl group.)