Epoxy Resin, Process for Producing the same, Photocurable Resin Composition Containing the Same, and Resin Composition for Powder Coatings (Epoxy Resin, Process for Producing the Same, and Photocurable Resin Composition and Powder Coating Resin Composition)

摘要

An epoxy resin having a number average molecular weight of 400 to 10,000, an epoxy equivalent of 100 to 5,000 and an average number of glycidyl ether groups per molecule of 2 to 50, which contains the group (s) represented by the following general formula (1) A resin composition for photocurable and powder coatings containing the same.;Wherein A is a group represented by the following formula;(Wherein R³Branched chain C₂-C₃₀A, b, c and d are each an integer of 0 to 25, e and f are each an integer of 0 to 4, and the sum of e and f is 0 to 4 And a + b + c x e + d x f is an integer of 0 to 50; B is;(Wherein g and h are from 0 to 18) and the like; R^OneAnd R²Is a hydrogen atom, a glycidyl group or a group represented by the following general formula (pp);(Wherein A and B are the same as defined above, R⁷, R⁸And R⁹Is a hydrogen atom or a glycidyl group.