公开(公告)号：EP2924151A4

公开(公告)日：2016-03-23

申请号：EP13856258

申请日：2013-11-22

申请人： MITSUBISHI RAYON CO

发明人： HAMADA MITSUHIRO ,  NAKAO HIROYUKI ,  ASO HIROMI ,  KAGEYAMA YOSHITAKA

IPC分类号： D01F9/22 ,  D01D10/00

CPC分类号： D01F9/21 ,  D01D10/00 ,  D01F6/16 ,  D01F9/225 ,  D01F11/06 ,  D06M10/001 ,  D06M10/025

摘要： The purpose of the present invention is to provide a method whereby deposits which have occurred on the surfaces of a fiber bundle during flameproofing treatment of a carbon fiber-precursor acrylic fiber bundle can be efficiently removed prior to carbonization treatment at high temperature. The method for production of carbon fiber bundle includes a step in which, after a carbon fiber-precursor acrylic fiber bundle has been heated and undergone flameproofing treatment, the fiber bundle is subjected to a plasma treatment involving contact with a plasma gas in gas phase, or to an ultraviolet treatment involving irradiation with ultraviolet in gas phase; and a step in which the fiber bundle having undergone the plasma treatment or the ultraviolet treatment is subjected to a carbonization treatment.

摘要翻译： 本发明的目的是提供一种在高温下碳化处理之前可以有效地除去在碳纤维前体丙烯酸类纤维束的防火处理期间在纤维束表面发生的沉积物的方法。 碳纤维束的制造方法包括以下步骤：在将碳纤维前体丙烯酸纤维束加热并进行防火处理之后，对纤维束进行与气相等离子体气体接触的等离子体处理， 或涉及在气相中照射紫外线的紫外线处理; 对经过等离子体处理或紫外线处理的纤维束进行碳化处理的工序。

公开(公告)号：EP2905364A4

公开(公告)日：2016-08-31

申请号：EP12886114

申请日：2012-12-26

申请人： MITSUBISHI RAYON CO

发明人： SAKO YOSHIHIRO ,  NAKAO HIROYUKI ,  KOTANI TOMOYUKI ,  TOKORO YASUHITO ,  TATEGAKI HIROSHI ,  KOGAME AKIYOSHI ,  SUMIYA KAZUNORI ,  HIRANO KENJI

IPC分类号： D01F9/22 ,  D01D5/16 ,  D01D5/253 ,  D02J13/00

CPC分类号： C08F120/12 ,  C08L33/18 ,  D01D5/16 ,  D01D5/253 ,  D01D10/02 ,  D01F6/16 ,  D01F9/21 ,  D01F9/225 ,  D02J13/001 ,  Y10T428/2918

公开(公告)号：EP2740837A4

公开(公告)日：2014-07-23

申请号：EP12819766

申请日：2012-08-02

申请人： MITSUBISHI RAYON CO

发明人： KIRIYAMA TAKAYUKI ,  HATA MASAHIRO ,  NAKAO HIROYUKI ,  YAMAMOTO NOBUYUKI ,  SHIMAHARA MASASHI ,  WATANABE KENICHI ,  MURANO YASUNORI ,  TATEGAKI HIROSHI

IPC分类号： D06M11/34 ,  D01F11/12

CPC分类号： C01B32/05 ,  C01B31/02 ,  D01F11/122 ,  D06M11/34 ,  D06M23/06 ,  D06M2101/40 ,  D06M2200/50

摘要： Provided is a carbon fiber manufacturing method including a surface treatment step of ejecting an ozone solution in which ozone is dissolved in solvent from a fluid ejecting port toward a carbon fiber bundle and causing the ozone solution to pass between single fibers of the carbon fiber bundle so as to contact surfaces of the single fibers so that the surfaces of carbon fibers are treated by the ozone solution. Also, provided is a carbon fiber subjected to a surface treatment by the carbon fiber manufacturing method.

摘要翻译： 本发明提供一种碳纤维的制造方法，其特征在于，包括将从溶液中溶解有臭氧的臭氧溶液喷射到碳纤维束并使臭氧溶液通过碳纤维束的单个纤维之间的表面处理工序， 接触单纤维的表面，使得碳纤维的表面被臭氧溶液处理。 此外，提供了通过碳纤维制造方法进行表面处理的碳纤维。

公开(公告)号：EP2628827A4

公开(公告)日：2014-07-09

申请号：EP11832602

申请日：2011-10-13

申请人： MITSUBISHI RAYON CO

发明人： SHINMEN YUUSUKE ,  HIROTA NORIFUMI ,  NAKAJIMA ATSUSHI ,  AOYAMA NAOKI ,  MATSUYAMA NAOMASA ,  NII TAKESHI ,  KOGAME AKIYOSHI ,  FUJII YASUYUKI ,  IRIE YOSHIKO ,  MATSUDA HARUMI ,  KIRIYAMA TAKAYUKI ,  MIURA TEPPEI ,  TERANISHI TAKUYA ,  MORI SHOUHEI ,  KANEKO MANABU ,  NUMATA KIHARU ,  ICHINO MASAHIRO ,  TAKEDA SHIGEKAZU ,  KOBAYASHI TAKAYUKI ,  ITOU TOSHIYUKI ,  HATA MASAHIRO ,  NAKAO HIROYUKI ,  WATANABE KENICHI

IPC分类号： D01F6/18 ,  C08J5/04 ,  D01D5/253 ,  D01F9/22

CPC分类号： D01F9/12 ,  B29C70/44 ,  B32B37/14 ,  C08J5/042 ,  C08J5/24 ,  C08J2363/00 ,  D01D5/096 ,  D01D5/253 ,  D01F6/38 ,  D01F9/225 ,  F27D7/00 ,  Y10T428/26 ,  Y10T428/298 ,  Y10T442/3089

摘要： Provided are: a carbon fiber bundle which has a large value of single-fiber fineness and excellent productivity and which, despite this, contains few interlaced single fibers therein and has excellent spreadability; and precursor fibers which are suitable for use in producing the carbon fiber bundle. The precursor fibers are a carbon-fiber-precursor acrylic fiber bundle which comprises a polyacrylonitrile copolymer comprising 95-99 mol% acrylonitrile units and 1-5 mol% hydroxyalkyl (meth)acrylate units and which has a single-fiber fineness of 1.5-5.0 dtex. In the acrylic fiber bundle, the cross-section of each single fiber which is perpendicular to the fiber axis has a shape that has a roundness of 0.9 or less. The roundness is a value determined using equation (1) where S and L are the cross-sectional area and the circumferential length, respectively, of a single fiber which are obtained by examining, with an SEM, the cross-section of the single fiber which is perpendicular to the fiber axis and analyzing the obtained image. Roundness = 4pS/L 2 (1)