CATIONIC POLYMERIZATION INITIATOR, CURING AGENT COMPOSITION, AND EPOXY RESIN COMPOSITION

摘要

when used in the hardener component of the epoxy resin composition, the epoxy resin composition without damaging the curing, it provides a cationic polymerization initiator to improve the its storage stability. The cationic polymerization initiator is a sulfonium salt compound represented by the following formula (1). (Formula (1), R ¹ indicates a group represented by any one of a hydroxyl group or the following formula (2) ~ (5), R ² is a C1- represents an alkyl group of to 6, R ³ indicates a hydrogen atom or an alkyl group having a carbon number of 1 to 6, R ⁴ is an alkyl group having from 1 to 6, R ⁵ refers to an unsaturated hydrocarbon group which may have a substituent.) (Formula (2) ~ (5), R ⁶ , each independently represents a hetero atom, aromatic or aliphatic hydrocarbon group which may have a substituent (s), which may comprise a group.)