公开(公告)号：US09682542B2

公开(公告)日：2017-06-20

申请号：US14971765

申请日：2015-12-16

Applicant: Kaneka Corporation

Inventor： Yusuke Ohta ,  Takashi Inada ,  Makoto Mishiro ,  Yasushi Nishikawa ,  Takashi Inada

IPC: C01B31/00 ,  B65H18/08 ,  B32B37/20 ,  B32B9/00 ,  B32B7/12 ,  B32B37/00 ,  B32B38/10 ,  B32B37/12 ,  B32B38/18

CPC classification number: B32B37/20 ,  B32B7/12 ,  B32B9/007 ,  B32B37/0053 ,  B32B37/12 ,  B32B38/10 ,  B32B38/18 ,  B32B2250/02 ,  B32B2313/04 ,  C01B32/20 ,  C04B35/522 ,  C04B35/524 ,  C04B35/62218 ,  C04B35/6269 ,  C04B35/63468 ,  C04B2235/604 ,  C04B2235/6581 ,  C04B2235/96 ,  C04B2235/9638

Abstract: A graphite film showing an extremely low average tearing force is more likely to suffer from various kinds of defects, such as splitting, winding deviation, wrinkling, and poor dimensional accuracy, in a step of producing the graphite film and in a step of processing the graphite film. However, these defects can be prevented by using a graphite film that satisfies the following requirements: 1) having an average tearing force of not more than 0.08 N as determined by Trouser tear method in accordance with JIS K7128; and 2) having sag of not less than 5 mm and not greater than 80 mm as determined by a method of film windability evaluation in accordance with JIS C2151.

公开(公告)号：US20150190982A1

公开(公告)日：2015-07-09

申请号：US14413734

申请日：2013-07-12

Applicant: KANEKA CORPORATION

Inventor： Makoto Kutsumizu ,  Yasushi Nishikawa ,  Yusuke Ohta ,  Satoshi Katayama ,  Takashi Inada ,  Motoaki Kobayashi

IPC: B32B7/04 ,  B32B9/04 ,  B32B3/26 ,  B32B9/00 ,  C01B31/04 ,  H05K1/02

CPC classification number: B32B7/04 ,  B32B3/266 ,  B32B9/007 ,  B32B9/045 ,  B32B9/047 ,  B32B15/20 ,  B32B17/04 ,  B32B2307/302 ,  B32B2313/04 ,  B32B2457/08 ,  C01B32/225 ,  H01L23/373 ,  H01L23/3735 ,  H01L2924/0002 ,  H05K1/0203 ,  H05K1/0207 ,  H05K3/022 ,  H05K3/44 ,  H05K2201/0323 ,  H05K2201/10106 ,  H05K2201/2072 ,  Y10T428/24347 ,  H01L2924/00

Abstract: Disclosed herein is a graphite composite material including a graphite film and a resin layer, wherein peeling-off of the resin layer from the graphite film is suppressed. The graphite composite material includes: a graphite film; and a resin layer formed on at least one surface of the graphite film, wherein the graphite film has through holes, wherein a number of the through is 100 to 1000 per cm2, and the through holes have a diameter of 0.10 mm or more but 1.00 mm or less, and wherein part of the resin layer is formed also in the through holes.

Abstract translation: 本文公开了一种石墨复合材料，其包括石墨膜和树脂层，其中树脂层与石墨膜的剥离被抑制。 石墨复合材料包括：石墨膜; 以及形成在所述石墨膜的至少一个表面上的树脂层，其中所述石墨膜具有通孔，其中所述通孔的数量为每平方厘米为100至1000，并且所述通孔的直径为0.10mm以上，但为1.00 mm以下，并且其中部分树脂层也形成在通孔中。

公开(公告)号：US20140308484A1

公开(公告)日：2014-10-16

申请号：US14361321

申请日：2012-10-23

Applicant: KANEKA CORPORATION

Inventor： Yusuke Ohta ,  Makoto Kutsumizu ,  Takashi Inada ,  Satoshi Katayama ,  Yasushi Nishikawa

IPC: C01B31/04

CPC classification number: C01B31/04 ,  C01B32/20 ,  H01L23/373 ,  H01L2924/0002 ,  Y10T428/24628 ,  H01L2924/00

Abstract: A re-forming process is carried out in which a material graphite film is heat-treated to not less than 2000° C. while the material graphite film is being pressured. Through the re-forming process, sag of a graphite film is controlled. By using, during the re-forming process, a plurality of inner cores having respective different surface states, it is possible to produce a graphite film having two or more sag forms which have respective effects.

Abstract translation: 在材料石墨膜被加压的同时进行将材料石墨膜热处理至不低于2000℃的再成形工艺。 通过重新形成工艺，控制石墨膜的下垂。 通过在再成形过程中使用具有各自不同表面状态的多个内芯，可以生产具有两种或更多种具有各自效果的凹陷形式的石墨膜。

公开(公告)号：US09776927B2

公开(公告)日：2017-10-03

申请号：US14995058

申请日：2016-01-13

Applicant: Kaneka Corporation

Inventor： Yusuke Ohta ,  Makoto Mishiro ,  Takashi Inada ,  Yasushi Nishikawa

IPC: B32B9/00 ,  C04B35/524 ,  C01B31/04

CPC classification number: C04B35/524 ,  C01B32/19 ,  C01B32/20 ,  C01B32/205 ,  C01B32/225 ,  Y10T428/30

Abstract: Provided is a long and large-area graphite film having improved thermal diffusivity and flex resistance, and accompanied by ameliorated ruffling. According to a method for producing a graphite film, in which graphitization of a heat-treated film consisting of a carbonized polymer film is carried out in a state being wrapped around an internal core, the method being characterized in that a heat treatment is executed by controlling distance(s) between the internal core and the film, and/or between the layers of the film, a graphite film accompanied by significantly ameliorated ruffling can be obtained.

公开(公告)号：US09359209B2

公开(公告)日：2016-06-07

申请号：US14361321

申请日：2012-10-23

Applicant: KANEKA CORPORATION

Inventor： Yusuke Ohta ,  Makoto Kutsumizu ,  Takashi Inada ,  Satoshi Katayama ,  Yasushi Nishikawa

IPC: C01B31/04 ,  H01L23/373

CPC classification number: C01B31/04 ,  C01B32/20 ,  H01L23/373 ,  H01L2924/0002 ,  Y10T428/24628 ,  H01L2924/00

Abstract: A re-forming process is carried out in which a material graphite film is heat-treated to not less than 2000° C. while the material graphite film is being pressured. Through the re-forming process, sag of a graphite film is controlled. By using, during the re-forming process, a plurality of inner cores having respective different surface states, it is possible to produce a graphite film having two or more sag forms which have respective effects.

Abstract translation: 在材料石墨膜被加压的同时进行将材料石墨膜热处理至不低于2000℃的再成形工艺。 通过重新形成工艺，控制石墨膜的下垂。 通过在再成形过程中使用具有各自不同表面状态的多个内芯，可以生产具有两种或更多种具有各自效果的凹陷形式的石墨膜。

公开(公告)号：US09845267B2

公开(公告)日：2017-12-19

申请号：US14995016

申请日：2016-01-13

Applicant: Kaneka Corporation

Inventor： Yusuke Ohta ,  Makoto Mishiro ,  Takashi Inada ,  Yasushi Nishikawa

IPC: B32B9/00 ,  C04B35/524 ,  C01B31/04

CPC classification number: C04B35/524 ,  C01B32/19 ,  C01B32/20 ,  C01B32/205 ,  C01B32/225 ,  Y10T428/30

Abstract: Provided is a long and large-area graphite film having improved thermal diffusivity and flex resistance, and accompanied by ameliorated ruffling. According to a method for producing a graphite film, in which graphitization of a heat-treated film consisting of a carbonized polymer film is carried out in a state being wrapped around an internal core, the method being characterized in that a heat treatment is executed by controlling distance(s) between the internal core and the film, and/or between the layers of the film, a graphite film accompanied by significantly ameliorated ruffling can be obtained.

公开(公告)号：US10377635B2

公开(公告)日：2019-08-13

申请号：US14515200

申请日：2014-10-15

Applicant: KANEKA CORPORATION

Inventor： Yusuke Ohta ,  Takashi Inada ,  Makoto Mishiro ,  Takashi Inada ,  Yasushi Nishikawa

IPC: C01B32/20

Abstract: When a raw material graphite film bad in flatness is laminated onto another material, creases and other defects may be caused. In particular, when a graphite film having a large area is laminated, defects such as creases may be often caused. In order to solve such defects, a flatness correction treatment step is performed wherein a raw material graphite film is subjected to heat treatment up to 2000° C. or higher while a pressure is applied thereto. This flatness correction treatment gives a graphite film good in flatness. Furthermore, when the flatness of the raw material graphite film is corrected by use of a thermal expansion of a core, a graphite film small in sagging can be obtained.

公开(公告)号：US09878521B2

公开(公告)日：2018-01-30

申请号：US14765053

申请日：2014-01-30

Applicant: KANEKA CORPORATION

Inventor： Makoto Kutsumizu ,  Yusuke Ohta ,  Satoshi Katayama ,  Takashi Inada ,  Motoaki Kobayashi ,  Yasushi Nishikawa

IPC: B32B9/00 ,  B32B7/02 ,  B32B9/04 ,  B32B38/00 ,  B29C45/14 ,  B29C45/00 ,  B32B27/30 ,  B32B27/42 ,  B32B27/38 ,  B29K707/04 ,  C08J5/04 ,  B29L9/00

CPC classification number: B32B9/007 ,  B29C45/0005 ,  B29C45/14 ,  B29C45/14811 ,  B29C2045/0012 ,  B29K2707/04 ,  B29L2009/00 ,  B32B7/02 ,  B32B9/04 ,  B32B9/045 ,  B32B27/308 ,  B32B27/38 ,  B32B27/42 ,  B32B38/00 ,  B32B2307/51 ,  B32B2457/00 ,  C08J5/042

Abstract: In order to prevent positional displacement of a graphite sheet laminate during production of a resin molded product obtained by integrally molding the graphite sheet laminate and a resin, the present invention uses a graphite sheet laminate having a structure in which a first fixing layer having a modulus of elasticity of not less than 7.0×104 Pa and not more than 5.0×107 Pa at 250° C. is in contact with a graphite sheet on at least one of principal surfaces of the graphite sheet.

公开(公告)号：US09193592B2

公开(公告)日：2015-11-24

申请号：US14703563

申请日：2015-05-04

Applicant: KANEKA CORPORATION

Inventor： Yusuke Ohta ,  Takashi Inada ,  Makoto Mishiro ,  Yasushi Nishikawa

IPC: B01J6/00 ,  C01B31/04

CPC classification number: B01J6/008 ,  C01B32/20 ,  C01P2006/60

Abstract: The present invention performs special heat treatment on a polymer film in a temperature range from (i) a lower limit to temperature rise being equal to or higher than a starting temperature of thermal decomposition of the polymer film, i.e., which is a temperature observed at an early stage of the thermal decomposition of the polymer film, to (ii) an upper limit to temperature rise being equal to or lower than an intermediate temperature of thermal decomposition of the polymer film. This reduces foaming in the film during graphitization treatment following the special heat treatment. Thus, even with a higher heating rate for graphitization, it is possible to produce a graphite film having good quality.

公开(公告)号：US09868639B2

公开(公告)日：2018-01-16

申请号：US14387069

申请日：2013-09-19

Applicant: KANEKA CORPORATION

Inventor： Satoshi Katayama ,  Yusuke Ohta ,  Takashi Inada ,  Makoto Kutsumizu ,  Yasushi Nishikawa

IPC: C01B31/02 ,  C01B31/04 ,  B32B18/00 ,  C04B35/52 ,  C04B35/524 ,  C04B35/622 ,  C01B32/05 ,  C01B32/20

CPC classification number: C01B32/20 ,  B32B18/00 ,  C01B32/05 ,  C04B35/522 ,  C04B35/524 ,  C04B35/62218 ,  C04B2235/6562 ,  C04B2235/9607 ,  C04B2237/363

Abstract: There has been a problem that wrinkles easily occur on a carbonaceous film produced by the use of a continuous production method and on a graphite film obtained by heat-treating the carbonaceous film. In the present invention, heating treatment is carried out on a polymeric film while applying pressure to the polymeric film in the film thickness direction with the use of a continuous carbonization apparatus. This makes it possible to obtain a carbonaceous film and a graphite film in which wrinkling is reduced.