公开(公告)号：US20180112029A1

公开(公告)日：2018-04-26

申请号：US15561851

申请日：2016-04-28

Applicant: TDK CORPORATION

Inventor： Takayoshi KUWAJIMA ,  Tsuyoshi SUGIYAMA

IPC: C08G59/40 ,  C08K3/28 ,  C08K3/32 ,  C08K5/13 ,  C08K5/18 ,  C08L63/00

CPC classification number: C08G59/40 ,  C08G59/00 ,  C08G59/5033 ,  C08G59/621 ,  C08G65/00 ,  C08J5/24 ,  C08J2363/00 ,  C08K3/22 ,  C08K3/28 ,  C08K3/32 ,  C08K5/13 ,  C08K5/18 ,  C08K2003/222 ,  C08K2003/282 ,  C08L63/00

Abstract: A resin composition includes an epoxy compound, a triphenylbenzene compound, an inorganic particle including a magnesium oxide (MgO) or the like, and phosphorus (P). The triphenylbenzene compound is a compound that includes 1,3,5-triphenylbenzene as a skeleton, and that includes a reactive group introduced in the skeleton. A content (mass %) of the phosphorus expressed by (mass of the phosphorus/mass of nonvolatile content excluding the inorganic particle)×100 is from 0.5 mass % to 4.3 mass %.