公开(公告)号：US20230137782A1

公开(公告)日：2023-05-04

申请号：US17915683

申请日：2021-03-30

Applicant: NITTO DENKO CORPORATION

Inventor： Tetsuya OTSUKA ,  Takanobu MIMURA ,  Tomoya KATO

IPC: C08J9/00 ,  C08J9/26 ,  C08J9/35

Abstract: A composite material according to the present invention includes a solid portion including inorganic particles and a resin. The composite material has a porous structure including a plurality of voids surrounded by the solid portion. In the composite material, a ratio of a smallest heat conductivity of heat conductivities λx, λy, and λz respectively in x-axis, y-axis, and z-axis directions perpendicular to each other to a largest heat conductivity of the heat conductivities λx, λy, and λz is 0.8 or more.

公开(公告)号：US20230131295A1

公开(公告)日：2023-04-27

申请号：US17915578

申请日：2021-03-30

Applicant: NITTO DENKO CORPORATION

Inventor： Tetsuya OTSUKA ,  Takanobu MIMURA ,  Tomoya KATO

IPC: C08J9/00 ,  C08K3/38 ,  C08J9/16

Abstract: A composite material according to the present invention includes a solid portion including inorganic particles and a resin. The composite material has a porous structure including a plurality of voids surrounded by the solid portion. The composite material has a heat conductivity of 0.5 W/(m·K) or more and a spring constant of 100 N/m to 70,000 N/m. The heat conductivity is a value measured for one test specimen in a symmetric configuration according to an American Society for Testing and Materials (ASTM) standard D5470-01.

公开(公告)号：US20190244598A1

公开(公告)日：2019-08-08

申请号：US16385112

申请日：2019-04-16

Applicant: Nitto Denko Corporation

Inventor： Tetsuya OTSUKA ,  Naoto HAYASHI ,  Takeshi SUTOU

IPC: G10K11/168

CPC classification number: G10K11/168 ,  B32B27/12 ,  B32B2307/102 ,  B62D25/04 ,  B62D29/04

Abstract: A soundproof structure includes a porous fibrous body that attenuates incident sound waves, wherein the fibrous body is formed of fibers having an average fiber diameter of 0.5 μm or more and 5 μm or less, and includes a surface layer on which the sound waves are incident and a propagation layer that is stacked with the surface layer and that propagates the sound waves from the surface layer, and wherein the propagation layer includes a high density layer having a density higher than a density of the surface layer.