Invention Grant
- Patent Title: Multilayer graphite sheet with excellent electromagnetic shielding capability and thermal conductivity and manufacturing method therefor
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Application No.: US17051947Application Date: 2019-05-03
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Publication No.: US11745463B2Publication Date: 2023-09-05
- Inventor: Jung Doo Seo , Hoon Kim , Jung-Gyu Kim , Jonggab Baek
- Applicant: SKC CO., LTD.
- Applicant Address: KR Gyeonggi-do
- Assignee: SKC CO., LTD.
- Current Assignee: SKC CO., LTD.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & T GROUP LLP
- Priority: KR 20180051022 2018.05.03
- International Application: PCT/KR2019/005323 2019.05.03
- International Announcement: WO2019/212284A 2019.11.07
- Date entered country: 2020-10-30
- Main IPC: B32B5/02
- IPC: B32B5/02 ; B32B5/24 ; B32B5/26 ; B32B9/04 ; B32B33/00 ; C01B32/205 ; C04B35/52 ; C04B35/524 ; B32B38/00 ; B32B3/26 ; H05K9/00 ; B32B7/02 ; B32B9/00 ; C01B32/20 ; B32B27/12 ; H05K7/20 ; B32B7/022 ; B32B7/023 ; B32B7/025

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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