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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.

Patent No.:

US 11214721 B1

PDFFull Text
Date of Patent:
Jan. 04, 2022

Filed:

Oct. 06, 2017

Thermally conductive composite silicone rubber sheet and method for manufacturing same

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Takanori Ito, Annaka, JP;

Akihiro Endo, Annaka, JP;

Yasuhisa Ishihara, Annaka, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Margaret G Moore

Int. Cl.
CPC ...
B32B 27/00 (2006.01); C09K 5/14 (2006.01); C09J 7/25 (2018.01); C09J 7/29 (2018.01); C09J 7/38 (2018.01); C09J 11/04 (2006.01); C09J 11/08 (2006.01); F28F 21/06 (2006.01); H01L 23/373 (2006.01); B32B 27/28 (2006.01); B32B 27/08 (2006.01);
U.S. Cl.
CPC ...
C09K 5/14 (2013.01); C09J 7/25 (2018.01); C09J 7/29 (2018.01); C09J 7/385 (2018.01); C09J 11/04 (2013.01); C09J 11/08 (2013.01); F28F 21/065 (2013.01); H01L 23/3737 (2013.01); B32B 27/00 (2013.01); B32B 27/08 (2013.01); B32B 27/283 (2013.01); C09J 2203/326 (2013.01); C09J 2301/408 (2020.08); C09J 2301/41 (2020.08); C09J 2400/143 (2013.01); C09J 2433/00 (2013.01); C09J 2483/006 (2013.01);
Abstract

Provided is a thermally conductive composite silicone rubber sheet formed by laminating an acrylic pressure-sensitive adhesive layer on one side of a non-pressure-sensitive adhesive/high-hardness thermally conductive silicone rubber sheet, wherein the acrylic pressure-sensitive adhesive layer is a cured product of an acrylic pressure-sensitive adhesive composition containing: an acrylic pressure-sensitive adhesive made of a polymer of a monomer mixture in which 5-50 mol % of hydroxyl group-containing monomers are contained in all of the constituent monomers; and 0.05-5 parts by mass of a chelate-based curing agent with respect to 100 parts by mass of the acrylic pressure-sensitive adhesive, and the thermally conductive silicone rubber sheet has a thermally conductive silicone rubber layer which, as a cured product of a thermally conductive silicone composition containing a thermally conductive filler, has a durometer A hardness of 60-96.

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