公开(公告)号：US20220220272A1

公开(公告)日：2022-07-14

申请号：US17609695

申请日：2020-05-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yuki KITAI ,  Masashi KODA ,  Yasunori HOSHINO ,  Atsushi WADA ,  Mikio SATO

IPC: C08J7/06 ,  H05K1/03 ,  H05K3/02

Abstract: A copper clad laminate includes: an insulating layer containing a cured product of a resin composition; and a surface treated copper foil on one surface or both surfaces of the insulating layer, the resin composition containing a polymer, and the surface treated copper foil including a finely roughened particle treatment layer of copper on at least one surface side of a copper foil, the finely roughened particle treatment layer being formed of fine copper particles having a particle size of 40 to 200 nm, a heat resistance treatment layer containing nickel provided on the finely roughened particle treatment layer, a rust prevention treatment layer containing at least chromium provided on the heat resistance treatment layer, a silane coupling agent layer provided on the rust prevention treatment layer, and an amount of nickel attached in the heat resistance treatment layer being 30 to 60 mg/m2.

公开(公告)号：US20210246251A1

公开(公告)日：2021-08-12

申请号：US17050671

申请日：2019-04-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Mikio SATO ,  Hiroaki FUJIWARA ,  Yuki KITAI ,  Masashi KODA ,  Yasunori HOSHINO ,  Takayoshi OZEKI

IPC: C08F290/06 ,  C08J5/24 ,  B32B15/08 ,  B32B27/28 ,  H05K1/03

Abstract: A resin composition is provided and contains a compound (A) having at least one group represented by the following Formula (1) in a molecule, a crosslinking type curing agent (B), and an azo compound (C) that has an azo group in a molecule and has no heteroatom other than a nitrogen atom constituting the azo group. In Formula (1), n represents 0 to 10, Z represents an arylene group, and R1 to R3 each independently represent a hydrogen atom or an alkyl group.

公开(公告)号：US20200247972A1

公开(公告)日：2020-08-06

申请号：US16650664

申请日：2018-09-28

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Mikio SATO ,  Hiroaki FUJIWARA ,  Yuki KITAI ,  Masashi KODA ,  Yasunori HOSHINO

IPC: C08J5/24 ,  C08K3/36 ,  C08K9/06 ,  H05K1/03 ,  B32B5/02 ,  B32B15/14

Abstract: One aspect of the present invention is a prepreg including a resin composition or a semi-cured product of the resin composition and a fibrous base material, in which the resin composition contains a modified polyphenylene ether compound terminally modified with a substituent having an unsaturated carbon-carbon double bond, and a crosslinkable curing agent having an unsaturated carbon-carbon double bond in a molecule, the fibrous base material is quartz glass cloth, the prepreg contains a silane coupling agent having an unsaturated carbon-carbon double bond in a molecule, in an amount of 0.01% by mass or more and less than 3% by mass with respect to the prepreg, and a cured product of the prepreg has a dielectric loss tangent of 0.002 or less at 10 GHz.