The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 28, 2023

Filed:

Jan. 29, 2018
Applicant:

Sekisui Chemical Co., Ltd., Osaka, JP;

Inventors:

Yuko Kawahara, Tsukuba, JP;

Keigo Oowashi, Osaka, JP;

Kouji Ashiba, Osaka, JP;

Masataka Sugimoto, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/38 (2006.01); B32B 27/20 (2006.01); B32B 27/38 (2006.01); B32B 15/092 (2006.01); B32B 15/20 (2006.01); B32B 27/26 (2006.01); H01L 23/373 (2006.01);
U.S. Cl.
CPC ...
C08K 3/38 (2013.01); B32B 15/092 (2013.01); B32B 15/20 (2013.01); B32B 27/20 (2013.01); B32B 27/26 (2013.01); B32B 27/38 (2013.01); H01L 23/3735 (2013.01); B32B 2264/107 (2013.01); B32B 2307/302 (2013.01); B32B 2307/304 (2013.01); C08K 2003/385 (2013.01); C08K 2201/001 (2013.01); C08K 2201/003 (2013.01); C08K 2201/014 (2013.01); C08K 2201/016 (2013.01);
Abstract

Provided is a resin material capable of effectively improving the insulating properties and the thermal conductivity, and further effectively controlling the variation in dielectric breakdown strength, and further effectively increasing the adhesion. A resin material according to the present invention includes first inorganic particles, second inorganic particles, and a binder resin, and a ratio of a compressive strength at 10% compression of the first inorganic particles to a compressive strength at 10% compression of the second inorganic particles is 2.5 or more, the second inorganic particles have a compressive strength at 10% compression of 1.5 N/mmor less, and the second inorganic particles include primary particles having an aspect ratio of 7 or less.


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