公开(公告)号：US20210271163A1

公开(公告)日：2021-09-02

申请号：US17256320

申请日：2019-06-27

Applicant: ADEKA CORPORATION

Inventor： Yoshitomo TAKEUCHI ,  Taiki MIHARA ,  Naomi SATO ,  Kazushi MATSUKAWA

IPC: G03F7/031 ,  G03F7/00 ,  G02B5/22 ,  C08F2/50

Abstract: Provided are: an oxime ester compound that is useful as a photopolymerization initiator used in a polymerizable composition; and a photopolymerization initiator containing the oxime ester compound. The oxime ester compound contains, in the same molecule: a group represented by the following Formula (I); and a photoradical cleavable group containing no oxime ester group: wherein, R1 and R2 each independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group or the like; one or more hydrogen atoms in the groups represented by R1 and R2 are optionally substituted with a halogen atom, a nitro group, a cyano group or the like; one or more methylene groups in the groups represented by R1 and R2 are optionally substituted with —O—, —CO—, —COO—, —OCO—, —NR3— or the like, provided that oxygen atoms are not arranged adjacent to one another; R3 represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms; n represents 0 or 1; and * represents a bond.