公开(公告)号：US20230151204A1

公开(公告)日：2023-05-18

申请号：US17916487

申请日：2021-04-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei MAEDA ,  Eiichiro SAITO ,  Akihiro YAMAUCHI

IPC: C08L63/00 ,  C08K5/5313 ,  C08J5/18 ,  H05K1/03 ,  C08K5/523 ,  C08K5/5399 ,  C08K3/36

CPC classification number: C08L63/00 ,  C08K5/5313 ,  C08J5/18 ,  H05K1/0373 ,  C08K5/523 ,  C08K5/5399 ,  C08K3/36 ,  C08J2363/00 ,  C08L2201/02 ,  C08K2003/2227

Abstract: A resin composition contains a resin component (A) and a phosphorus-containing flame retardant (B). The resin component (A) contains an epoxy resin (a1), of which the viscosity at 25° C. is equal to or less than 50000 mPa·s. The proportion of the epoxy resin (a1) to the resin component (A) is equal to or greater than 20% by mass. The phosphorus-containing flame retardant (B) includes a phosphorus-containing flame retardant (B1) that neither melts nor thermally decomposes at a temperature lower than 150° C.