Sulfonium salt, photoacid generator, and photocurable composition and cured body thereof
申请人:San-Apro Limited
公开号:US08278030B2
公开(公告)日:2012-10-02
An object of the present invention is to provide a sulfonium salt that has sufficient photosensitivity by active energy rays, such as visible light, ultraviolet rays, electron beams, and X-rays. The present invention is a sulfonium salt represented by formula (1). It is noted that R1 is a group represented by formula (2); R2 and R3 each represent an aryl group having 6 to 30 carbon atoms, a heterocyclic hydrocarbon group having 4 to 30 carbon atoms, an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, or an alkynyl group having 2 to 30 carbon atoms; X− represents a monovalent polyatomic anion; R4 to R6 each represent an alkyl group, or the like; k represents an integer of 0 to 4; m represents an integer of 0 to 3; n represents an integer of 0 to 4; and A represents a group represented by —S—, —O—, —SO—, —SO2—, or —CO—.
本发明的目的是提供一种对活性能量射线(如可见光、紫外线、电子束和X射线)具有足够光敏性的磺鎓盐。本发明是由式(1)表示的磺鎓盐。需要注意的是,R1是由式(2)表示的基团;R2和R3分别表示具有6至30个碳原子的芳基基团、具有4至30个碳原子的杂环烃基团、具有1至30个碳原子的烷基团、具有2至30个碳原子的烯基团或具有2至30个碳原子的炔基团;X-表示单价多原子阴离子;R4至R6分别表示烷基团或类似物;k表示0至4的整数;m表示0至3的整数;n表示0至4的整数;A表示由-S-、-O-、-SO-、-SO2-或-CO-表示的基团。