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Title:
GRAPHITE SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/187620
Kind Code:
A1
Abstract:
Provided are: a graphite sheet having favorable heat diffusion properties and flexibility; and a method for producing the same. This method for producing a graphite sheet containing 0.01 to 1.10 wt% of phosphorus includes: a carbonization step in which a polyimide film having a phosphate content within a prescribed range is carbonized to obtain a carbonaceous film; and a graphitizing step in which the carbonaceous film is subjected to a heat treatment at a prescribed temperature increase rate and a maximum temperature of at least 2,600°C.

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Inventors:
KOBAYASHI MOTOAKI (JP)
INABA KEISUKE (JP)
KOJIMA MASAHIRO (JP)
NISHIKAWA YASUSHI (JP)
Application Number:
PCT/JP2019/003602
Publication Date:
October 03, 2019
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
KANEKA CORP (JP)
International Classes:
C01B32/20; C01B32/205; C08G73/10; C08J5/18; C08J7/00; H01L23/36; H01L23/373
Foreign References:
JP2014136721A2014-07-28
JP2014133669A2014-07-24
JP2013139390A2013-07-18
JP2013209288A2013-10-10
JP2004123506A2004-04-22
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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