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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 11745463 B1

PDFFull Text
Date of Patent:
Sep. 05, 2023

Filed:

May. 03, 2019

Multilayer graphite sheet with excellent electromagnetic shielding capability and thermal conductivity and manufacturing method therefor

Applicant:

Skc Co., Ltd., Gyeonggi-do, KR;

Inventors:

Jung Doo Seo, Gyeonggi-do, KR;

Hoon Kim, Gyeonggi-do, KR;

Jung-Gyu Kim, Gyeonggi-do, KR;

Jonggab Baek, Gyeonggi-do, KR;

Assignee:

SKC CO., LTD., Gyeonggi-do, KR;

Attorney:

IP & T GROUP LLP

Primary Examiner:

Jeffrey A Vonch

Int. Cl.
CPC ...
B32B 5/02 (2006.01); B32B 5/24 (2006.01); B32B 5/26 (2006.01); B32B 9/04 (2006.01); B32B 33/00 (2006.01); C01B 32/205 (2017.01); C04B 35/52 (2006.01); C04B 35/524 (2006.01); B32B 38/00 (2006.01); B32B 3/26 (2006.01); H05K 9/00 (2006.01); B32B 7/02 (2019.01); B32B 9/00 (2006.01); C01B 32/20 (2017.01); B32B 27/12 (2006.01); H05K 7/20 (2006.01); B32B 7/022 (2019.01); B32B 7/023 (2019.01); B32B 7/025 (2019.01);
U.S. Cl.
CPC ...
B32B 5/26 (2013.01); B32B 3/263 (2013.01); B32B 5/02 (2013.01); B32B 5/024 (2013.01); B32B 7/02 (2013.01); B32B 9/007 (2013.01); B32B 9/04 (2013.01); B32B 9/047 (2013.01); B32B 38/004 (2013.01); C01B 32/20 (2017.08); C01B 32/205 (2017.08); C04B 35/522 (2013.01); C04B 35/524 (2013.01); H05K 9/0081 (2013.01); H05K 9/0088 (2013.01); B32B 5/022 (2013.01); B32B 7/022 (2019.01); B32B 7/023 (2019.01); B32B 7/025 (2019.01); B32B 38/00 (2013.01); B32B 2038/0076 (2013.01); B32B 2250/05 (2013.01); B32B 2250/20 (2013.01); B32B 2255/02 (2013.01); B32B 2255/26 (2013.01); B32B 2262/062 (2013.01); B32B 2262/106 (2013.01); B32B 2305/18 (2013.01); B32B 2305/188 (2013.01); B32B 2305/20 (2013.01); B32B 2307/212 (2013.01); B32B 2307/302 (2013.01); B32B 2307/72 (2013.01); B32B 2307/732 (2013.01); B32B 2309/105 (2013.01); B32B 2313/04 (2013.01); B32B 2509/00 (2013.01); B32B 2605/00 (2013.01); H05K 7/2039 (2013.01); H05K 7/20481 (2013.01); Y10T 428/2495 (2015.01); Y10T 428/24355 (2015.01); Y10T 428/24942 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/24975 (2015.01); Y10T 428/24992 (2015.01); Y10T 442/3854 (2015.04);
Abstract

An embodiment relates to a multilayer graphite sheet with excellent electromagnetic shielding capability and thermal conductivity, and a manufacturing method therefor, wherein the multilayer graphite sheet has a multilayer structure of five or more layers in total and can be manufactured to have a thick thickness of 70 μm or more such that the electromagnetic shielding capability can be significantly improved. In addition, the multilayer graphite sheet is manufactured by graphitizing a hybrid laminate in which heterogeneous materials are mixed such that thermal conductivity and electromagnetic shielding capability can be simultaneously realized at a lower cost, thereby being useful as a thick film sheet which used in various applications such as home appliances and electric vehicles.

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