PHTOSENSATIVE RESIN WITH GOOD HEAT-RESISTING PROPERTY AND PHOTOSENSATIVE COMPOSITION HAVING THE SAME

摘要

PURPOSE: An alkali soluble resin is provided to ensure excellent heat resistance, chemical resistance, development, sensitivity, temporally stability due to a structure for improving heat resistance. CONSTITUTION: An alkali soluble resin has a structure represented by chemical formula 1. In chemical formula 1, R1~R4 are independently hydrogen or methyl group; X is a group derived from aromatic and aliphatic vinyl monomer; Y is a group derived from an ethylenically unsaturated compound containing an epoxy group; Z is a group derived from a compound containing an epoxy group; a is 5-30 mol%, b is 20-50 mol%, c is 10-30 mole %, and d is 5-20 mole %.