Title:
METHOD FOR IMPROVING THE FLATNESS OF GRAPHITE FILM, GRAPHITE FILM, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/148581
Kind Code:
A1
Abstract:
A raw material graphite film, which has an uneven surface, suffered from defects, such as creases, when laminated with another material. Particularly, when the graphite film has a large area, the likelihood of defects, such as creases, to be produced increased. A raw material graphite film is subjected to a flatness correction treatment in which the raw material graphite film is heated to 2000°C or higher while being applied with pressure. A graphite film exhibiting excellent flatness can be obtained by means of said flatness correction treatment. Moreover, when the correction treatment is performed by using the thermal expansion of the core, a graphite film which has less sagging can be obtained.
Inventors:
OHTA YUSUKE
INADA TAKASHI
MISHIRO MAKOTO
NISHIKAWA YASUSHI
INADA TAKASHI
MISHIRO MAKOTO
NISHIKAWA YASUSHI
Application Number:
PCT/JP2011/002645
Publication Date:
December 01, 2011
Filing Date:
May 12, 2011
Export Citation:
Assignee:
KANEKA CORP (JP)
OHTA YUSUKE
INADA TAKASHI
MISHIRO MAKOTO
NISHIKAWA YASUSHI
OHTA YUSUKE
INADA TAKASHI
MISHIRO MAKOTO
NISHIKAWA YASUSHI
International Classes:
C01B31/04
Foreign References:
| JP2010064949A | 2010-03-25 | |||
| JP2000247740A | 2000-09-12 | |||
| JPH11100207A | 1999-04-13 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
Patent business corporation Owner old patent firm (JP)
Patent business corporation Owner old patent firm (JP)
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Claims:
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