| abstract |
(57) [Abstract] (Corrected) [PROBLEMS] High-sensitivity alkali-developable unsaturated resin composition having a wide development margin, and a high-definition color filter material formed by using the resin composition, Provided is a high-sensitivity negative pattern forming material suitable for applications such as an insulating film for high-density integrated circuits and a sealing material. A carboxyl group-containing alternating copolymer obtained by reacting a diol compound having one or more polymerizable unsaturated groups in one molecule with an acid dianhydride is contained as an essential acidic component, The carboxyl group-containing alternating copolymer has an acid value of 70 to 170 mgKOH / g, and is an unpolymerized product composed of an unreacted acid dianhydride and / or an adduct of one molecule of the diol compound and one molecule of the acid dianhydride. An alkali-developable unsaturated resin composition containing 20% by weight or less of all acidic components. A high-sensitivity negative pattern forming material for a color filter or a circuit insulating material using this resin composition. |