公开(公告)号：US20210380749A1

公开(公告)日：2021-12-09

申请号：US17288372

申请日：2019-11-07

Applicant: ADEKA CORPORATION

Inventor： Keisuke OTA ,  Masato INADOME ,  Yukako ISHIGAMI ,  Ryo OGAWA ,  Tamotsu NAGAMATSU

IPC: C08G18/00 ,  C08G18/48 ,  C09J175/08 ,  C08G18/10 ,  C08G18/28

Abstract: Disclosed is a structural material-bonding adhesive capable of bonding materials other than iron, and maintaining the bonding ability in an environment at a high temperature and a low temperature, while maintaining performance similar to that of a structural material adhesive used as an adhesive for bonding iron materials. A curable resin composition contains an epoxy resin, blocked urethane, and an amine-based latent curing agent, wherein the blocked urethane is obtained by reacting a urethane polymer having a terminal isocyanate group with a blocking agent, the urethane polymer being obtained by reacting a polyisocyanate, a diol, and a branching agent containing at least three groups that react with an isocyanate group.