公开(公告)号：US20210292462A1

公开(公告)日：2021-09-23

申请号：US17266847

申请日：2019-07-11

Applicant: SHOWA DENKO K.K.

Inventor： Hiroki KURAMOTO ,  Kenichi NAKANISHI ,  Shohei NISHIZAWA ,  Yoshishige OKUNO

IPC: C08G18/00 ,  C07F9/50 ,  C09J175/02

Abstract: A polyisocyanurate raw material composition containing a polyfunctional isocyanate, a compound (I) represented by general formula (I) shown below, and an epoxy compound. In general formula (I), each of R1 to R5 represents a hydrogen atom, an alkoxy group of 1 to 10 carbon atoms, an alkyl group of 2 to 10 carbon atoms (or an alkyl group of 1 to 10 carbon atoms in the case of R3 to R5), an aryl group of 6 to 12 carbon atoms, an amino group, a monoalkylamino group of 1 to 10 carbon atoms, a dialkylamino group of 2 to 20 carbon atoms, a carboxy group, a cyano group, a fluoroalkyl group of 1 to 10 carbon atoms, or a halogen atom (provide that R1 and R2 are not both hydrogen atoms).