公开(公告)号：US20210002480A1

公开(公告)日：2021-01-07

申请号：US16957273

申请日：2018-12-18

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kenichi TOSHIMITSU ,  Yoshihiko NAKAMURA ,  Hiroyuki FUJISAWA ,  Yuuji TUMURAYA ,  Akihiro YAMAUCHI ,  Takashi SHINPO

IPC: C08L71/12 ,  C08G65/48 ,  C08F290/06 ,  C08K5/11 ,  C08K5/13 ,  C08K5/3492 ,  C08K9/06 ,  H05K1/03 ,  C08J5/24

Abstract: A resin composition is used which contains a maleimide compound represented by the following Formula (1), a modified polyphenylene ether compound of which a terminal is modified with a substituent having a carbon-carbon unsaturated double bond, and a crosslinking agent containing an allyl compound. In Formula (1), s represents 1 to 5 and RA, RB, RC, and RD each independently represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a phenyl group.

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.

公开(公告)号：US20210235580A1

公开(公告)日：2021-07-29

申请号：US17050624

申请日：2019-04-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akihiro YAMAUCHI ,  Eiichiro SAITO ,  Kouichi AOKI

IPC: H05K1/03 ,  B32B15/08 ,  H05K7/20 ,  H01L23/373

Abstract: A resin composition includes: a resin as Component (A); and an inorganic filler as Component (B). The Component (B) includes anhydrous magnesium carbonate as Component (b1) and aluminum oxide as Component (b2). Content of the Component (b1) falls within a range from 35% by volume to 65% by volume relative to 100% by volume of the Components (b1) and (b2) combined. Content of the Component (B) falls within a range from 60% by volume to 75% by volume relative to 100% by volume of the resin composition.

公开(公告)号：US20230257540A1

公开(公告)日：2023-08-17

申请号：US18012583

申请日：2021-07-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomoyuki AOKI ,  Akihiro YAMAUCHI ,  Eiichiro SAITO

IPC: C08J5/24 ,  C08J5/18 ,  H05K1/18 ,  H05K1/03 ,  B29B11/16

CPC classification number: C08J5/244 ,  C08J5/18 ,  H05K1/182 ,  H05K1/0366 ,  B29B11/16 ,  C08J2363/00 ,  C08J2463/00 ,  B29K2101/10

Abstract: A resin sheet according to the present disclosure includes an uncured product or semi-cured product of a thermosetting resin composition. A melt viscosity of the resin sheet is equal to or greater than 10 Pa·s and equal to or less than 2000 Pa·s when measured using a Koka flow tester under a measuring condition including 130° C. and 1 MPa and is equal to or greater than 6 Pa·s and equal to or less than 1200 Pa·s when measured using the Koka flow tester under a measuring condition including 130° C. and 4 MPa.

公开(公告)号：US20220372245A1

公开(公告)日：2022-11-24

申请号：US17771079

申请日：2020-10-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akihiro YAMAUCHI ,  Eiichiro SAITO ,  Nobuo SHIBATA ,  Kouichi AOKI

IPC: C08K3/26 ,  C08K3/22 ,  C08K9/06 ,  C08J5/24 ,  C08L63/00 ,  H05K1/03

Abstract: A resin composition contains a thermosetting resin (A) and an inorganic filler (B). The inorganic filler (B) includes: a first filler (B1); and a second filler (B2) of a nanometer scale having a smaller particle size than the first filler (B1). The first filler (B1) includes an anhydrous magnesium carbonate filler (b1) and an alumina filler (b2). The proportion of the first filler (B1) relative to a total solid content in the resin composition is equal to or greater than 50% by volume and equal to or less than 90% by volume. The proportion of the second filler (B2) relative to the total solid content in the resin composition is equal to or greater than 0.1% by volume and equal to or less than 2.0% by volume.