公开(公告)号：US20240052223A1

公开(公告)日：2024-02-15

申请号：US17793762

申请日：2022-01-28

Applicant: SHOWA DENKO K.K.

Inventor： Hajime FUNAHASHI ,  Naoki MINORIKAWA ,  Hikaru SATOH ,  Ikue KOBAYASHI ,  Hajime YUKUTAKE ,  Takeshi IEMURA

IPC: C09K5/14 ,  C08G18/36 ,  C08G18/10 ,  C08K9/02 ,  C08K9/08 ,  C08K3/22

CPC classification number: C09K5/14 ,  C08G18/36 ,  C08G18/10 ,  C08K9/02 ,  C08K9/08 ,  C08K3/22 ,  C08K2201/001 ,  C08K2201/01 ,  C08K2201/005 ,  C08K2003/2227 ,  C08K2201/014 ,  H01L23/3737

Abstract: A thermally conductive urethane resin composition comprising a castor oil-based polyol, a polyisocyanate compound, and a filler, wherein



an equivalent ratio [NCO/OH] of isocyanato groups of the polyisocyanate compound to hydroxyl groups of the castor oil-based polyol is from 0.8 to 1.6,
the filler comprises a filler (A) having an average particle diameter of 0.03 to 10 μm, and
the filler (A) has been surface-treated with a specific surface treatment agent.

公开(公告)号：US20230227707A1

公开(公告)日：2023-07-20

申请号：US18001619

申请日：2021-05-11

Applicant: SHOWA DENKO K.K.

Inventor： Hajime YUKUTAKE ,  Naoki MINORIKAWA ,  Hajime FUNAHASHI

IPC: C09K5/14 ,  C08L83/04 ,  C08K13/06

CPC classification number: C09K5/14 ,  C08L83/04 ,  C08K13/06 ,  C08L2207/324 ,  C08L2205/025 ,  C08K2003/282

Abstract: Provided is a thermally conductive composition containing a liquid resin, a thermally conductive powder, and a dispersant, in which the liquid resin has a viscosity of 10 mPa·s or more and 2,000 mPa·s or less at 25° C., the dispersant is an acrylic silicone, and at least one of the liquid resin and the thermally conductive powder contains an alkyl group having 4 or more carbon atoms.