公开(公告)号：US20190181081A1

公开(公告)日：2019-06-13

申请号：US16275957

申请日：2019-02-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroki TAMIYA ,  Koji KISHINO ,  Ryuji TAKAHASHI ,  Yasunori HOSHINO ,  Takahiro YAMADA ,  Shimpei OBATA ,  Hiroyuki SHIRAKI ,  Shinya ARAKAWA ,  Shigetoshi FUJITA

IPC: H01L23/498 ,  C08L63/00 ,  H01L23/14 ,  C08K9/04

Abstract: A thermosetting resin composition according to the invention contains: a thermosetting resin component; and silica having an average particle diameter equal to or greater than 0.2 μm and treated with isocyanate. It is preferable that the content of the silica is in a range of 50% by mass to 300% by mass with respect to the thermosetting resin component. It is also preferable that the thermosetting resin composition contains core shell rubber having content in a range of 20% by mass to 80% by mass with respect to the thermosetting resin component.

公开(公告)号：US20190150279A1

公开(公告)日：2019-05-16

申请号：US16095120

申请日：2017-04-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shimpei OBATA ,  Ryuuji TAKAHASHI ,  Yasunori HOSHINO ,  Shigetoshi FUJITA

IPC: H05K1/03 ,  B32B15/08 ,  H05K1/02 ,  H01L23/498 ,  C08J5/24

Abstract: A prepreg contains a base material containing a reinforcing fiber and a semi-cured product of a resin composition impregnated into the base material containing a reinforcing fiber. The prepreg after cured has a glass transition temperature (Tg) which is higher than or equal to 150° C. and lower than or equal to 220° C. The resin composition contains (A) a thermosetting resin and (B) at least one compound selected from a group consisting of core shell rubber and a polymer component having a weight average molecular weight of 100000 or more. An amount of the (B) component is higher than or equal to 30 parts by mass and lower than or equal to 100 parts by mass with respect to 100 parts by mass of the (A) component.