公开(公告)号：US20240092979A1

公开(公告)日：2024-03-21

申请号：US18272889

申请日：2022-01-25

Applicant: SEKISUI TECHNO MOLDING CO., LTD.

Inventor： Yuusuke SUENAGA ,  Ryuuji MATSUMURA ,  Takuya MASUDA ,  Nami NAKAJIMA ,  Takamichi SHINOHARA

IPC: C08J3/20 ,  C08K3/04 ,  C08K7/00 ,  H05K9/00

CPC classification number: C08J3/203 ,  C08K3/04 ,  C08K7/00 ,  H05K9/009 ,  C08J2323/12 ,  C08J2377/02 ,  C08K2201/001 ,  C08K2201/006

Abstract: Provided is a resin composition having excellent electromagnetic wave shielding properties. A resin composition containing: a thermoplastic resin (A); graphite (B); and two or more kinds of carbon black (C), the two or more kinds of carbon black (C) including a first carbon black (C-1) having a BET specific surface area of 600 m2/g or more and a second carbon black (C-2) having a BET specific surface area of less than 600 m2/g.

公开(公告)号：US20240084098A1

公开(公告)日：2024-03-14

申请号：US18272887

申请日：2022-01-25

Applicant: SEKISUI TECHNO MOLDING CO., LTD.

Inventor： Takuya MASUDA ,  Yuusuke SUENAGA ,  Ryuuji MATSUMURA ,  Isao HIGUCHI ,  Takamichi SHINOHARA

IPC: C08K3/04 ,  C08J5/04 ,  C08K7/00

CPC classification number: C08K3/042 ,  C08J5/043 ,  C08K3/04 ,  C08K7/00 ,  C08J2323/12

Abstract: Provided is a resin composition with which a resin molded article having excellent heat dissipation can be obtained. A resin composition containing: a thermoplastic resin; graphite; and a fibrous body, when the resin composition in a molten state is filled in a mold from a direction orthogonal to a thickness direction of a resulting resin molded article 1 and molded to obtain a resin molded article 1 of 100 mm in length×100 mm in width×2 mm in thickness, in a cross-section obtained by cutting the resin molded article 1 along a direction X parallel to a filling direction and a thickness direction Z, among regions 1A to 1E obtained by dividing the cross-section into five equal parts in the thickness direction Z, an average orientation angle (A) with respect to a plane direction of the graphite in at least one of the regions 1A and 1E on outermost layer sides being 15° or less, and an average orientation angle (B) with respect to the plane direction of the graphite in the central region 1C being 35° or more.