发明名称 |
METHOD FOR PRODUCING CARBONACEOUS FILM, METHOD FOR PRODUCING GRAPHITE FILM, ROLL OF POLYMER FILM, AND ROLL OF CARBONACEOUS FILM |
摘要 |
Disclosed herein is a method for producing an elongated (rolled) carbonaceous film by polymer pyrolysis while suppressing the fusion bonding and the rippling of the carbonaceous film. The method for producing a carbonaceous film includes the step of heat-treating a polymer film wound into a roll, wherein the heat treatment is performed after the polymer film is wound into a roll at a temperature lower than a pyrolysis onset temperature of the polymer film so that the roll of polymer film has a center and has a space inside its cross-sectional circle (50% cross-sectional circle) (space within 50% cross-sectional circle) whose center is at the center and whose circumference passes through a point at which a length of the polymer film from an inner end thereof is 50% of a total length of the polymer film and that an area of the space within 50% cross-sectional circle is 25% or more of an area of the 50% cross-sectional circle. Particularly, providing a space between a core and an innermost layer of the roll of polymer film is more effective at solving the above problem. |
申请公布号 |
US2014112859(A1) |
申请公布日期 |
2014.04.24 |
申请号 |
US201214008390 |
申请日期 |
2012.03.26 |
申请人 |
MISHIRO MAKOTO;OHTA YUSUKE;INADA TAKASHI;NISHIKAWA YASUSHI;KANEKA CORPORATION |
发明人 |
MISHIRO MAKOTO;OHTA YUSUKE;INADA TAKASHI;NISHIKAWA YASUSHI |
分类号 |
C01B31/02;C08G73/10 |
主分类号 |
C01B31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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