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)

公开(公告)号：EP2682429A4

公开(公告)日：2014-08-20

申请号：EP12751861

申请日：2012-03-02

申请人： MITSUBISHI RAYON CO

发明人： ICHINO MASAHIRO ,  KANEKO MANABU ,  KOGA KAZUKI ,  MIURA TEPPEI ,  TERANISHI TAKUYA ,  NUMATA KIHARU ,  MITANI KAZUTAMI ,  SAMEJIMA TADAO

IPC分类号： C08J5/24 ,  C08G59/17 ,  C08G59/40 ,  C08K5/00 ,  C08L63/10

CPC分类号： C08L63/10 ,  B32B2305/076 ,  C08G59/1466 ,  C08G59/4021 ,  C08J5/24 ,  C08J2363/00 ,  C08J2363/10 ,  C08K5/0025 ,  Y10T428/27

摘要： The present invention relates to a method for producing a prepreg which contains reinforcing fibers and a matrix resin composition with the weight per square meter of the reinforcing fibers being 250-2,000 g / m 2 . The production method comprises the following steps (1)-(3): (1) a matrix resin composition blending step for obtaining a matrix resin composition by mixing an epoxy resin, a radically polymerizable unsaturated compound, an epoxy resin curing agent and a polymerization initiator that generates radicals, in said step the content of the radically polymerizable unsaturated compound relative to 100% by mass of the total of the epoxy resin and the radically polymerizable unsaturated compound being 10-25% by mass; (2) a matrix resin composition impregnating step; and (3) a surface viscosity increasing step.

公开(公告)号：EP2484711A4

公开(公告)日：2013-04-17

申请号：EP10820716

申请日：2010-10-01

申请人： MITSUBISHI RAYON CO

发明人： MIURA TEPPEI ,  KANEKO MANABU

IPC分类号： C08J5/04 ,  B29C70/06 ,  C08G59/32 ,  C08G59/50 ,  C08J3/24 ,  C08J5/24 ,  C08L63/00

CPC分类号： C08J5/24 ,  C08G59/3218 ,  C08G59/3227 ,  C08G59/504 ,  C08J2363/00 ,  C08L63/00 ,  Y10T442/2631 ,  C08L2666/22

摘要： A method for producing a fiber-reinforced composite material having high mechanical properties and high heat resistance, and allowing the use of a gypsum die in primary curing, wherein a fiber-reinforced prepreg, obtained by impregnating reinforcing fibers with an epoxy resin composition comprising a triphenylmethane-type epoxy resin, N,N,N',N'-tetraglycidyldiaminodiphenylmethane (B) and diaminodiphenylsulfone (C), is subjected to primary curing at 110-130°C, and then to secondary curing at a temperature which is at least as high as the primary curing temperature.

公开(公告)号：EP2894190A4

公开(公告)日：2016-03-16

申请号：EP13835598

申请日：2013-09-05

申请人： MITSUBISHI RAYON CO

发明人： TERANISHI TAKUYA ,  KANEKO MANABU ,  ICHINO MASAHIRO ,  MIURA TEPPEI ,  SAMEJIMA TADAO ,  MIYAUCHI AKIRA ,  NUMATA KIHARU ,  MORI SHOUHEI ,  KUSUMI MASAKI

IPC分类号： C08J5/24 ,  C08L63/00

CPC分类号： C08J5/24 ,  B29C65/80 ,  B29L2031/744 ,  B32B27/20 ,  B32B27/38 ,  B32B2262/106 ,  B32B2305/076 ,  C08J5/042 ,  C08J2363/00 ,  C08J2433/00 ,  C08J2463/10 ,  C09D163/00 ,  Y10T428/31511

摘要： This prepreg comprises reinforcing fibers and a matrix resin composition. The matrix resin composition comprises at least an epoxy resin (component (A)), a radical polymerizable unsaturated compound (component (B)), and a polymer formed by radical polymerization of the component (B) (component (E)).