公开(公告)号：US20120058337A1

公开(公告)日：2012-03-08

申请号：US13140711

申请日：2009-12-17

申请人： Hiroshi Sakurai ,  Hiroshi Hara ,  Shoichi Takagi

发明人： Hiroshi Sakurai ,  Hiroshi Hara ,  Shoichi Takagi

IPC分类号： D02G3/00 ,  C01B31/10

CPC分类号： D01F9/145 ,  D01D5/0985 ,  Y10T428/2913

摘要： An object of the present invention is to provide a pitch carbon fiber having a decreased occurrence of cracking along the direction of the fiber axis of the pitch carbon fiber, which has conventionally occurred in a melt blowing method, and having high thermal conductivity.The invention is directed to a pitch carbon fiber having a melt mark recognized in the fiber corresponding to 60 to less than 100% of the cross-section of the fiber, and having a lattice spacing (d 002 value) of 0.3362 nm or less in the graphite layer and a crystallite size (Lc) of 60 nm or more derived from the thicknesswise direction, as determined by X-ray diffractometry. The pitch carbon fiber can be produced under specific conditions for spinning and infusibilization.

摘要翻译： 本发明的目的在于提供一种沥青碳纤维，该沥青碳纤维沿着沥青碳纤维的纤维轴线的方向发生断裂，该方法通常以熔喷法形成，并具有高导热性。 本发明涉及一种沥青碳纤维，其纤维在纤维中被识别为对应于纤维横截面的60至小于100％，并且具有0.3362nm或更小的晶格间距（d 002值）为0.3362nm或更小 石墨层，并且通过X射线衍射测定，从厚度方向导出60nm以上的微晶尺寸（Lc）。 沥青碳纤维可以在纺丝和灌注的特定条件下生产。

公开(公告)号：US20110159767A1

公开(公告)日：2011-06-30

申请号：US12958952

申请日：2010-12-02

申请人： Hiroshi SAKURAI ,  Hiroshi HARA ,  Hiroki SANO ,  Shuhei ONOUE ,  Yukio NAKAMOTO ,  Yoshio OSAWA ,  Shoichi TAKAGI

发明人： Hiroshi SAKURAI ,  Hiroshi HARA ,  Hiroki SANO ,  Shuhei ONOUE ,  Yukio NAKAMOTO ,  Yoshio OSAWA ,  Shoichi TAKAGI

IPC分类号： D04H1/08 ,  D04H13/00 ,  D01F9/14

CPC分类号： D01D5/0985 ,  C08J5/042 ,  D01F9/145 ,  D04H1/08 ,  D04H1/4242 ,  D04H1/46 ,  Y10T442/50 ,  Y10T442/60 ,  Y10T442/624

摘要： A nonwoven fabric which contains pitch-based carbon fibers having a high elongation and a high elastic modulus which are not attained in the prior art and is obtained by improving the tensile elongation of carbon fibers derived from mesophase pitch, a felt obtained from the nonwoven fabric, and production processes therefore. The nonwoven fabric contains pitch-based carbon fibers, wherein the pitch-based carbon fibers have (i) an average fiber diameter (D1) measured by an optical microscope of more than 2 μm and 20 μm or less, (ii) a percentage of the degree of fiber diameter distribution (S1) to average fiber diameter (D1) measured by an optical microscope of 3 to 20%, (iii) a tensile elastic modulus of 80 to 300 GPa and (iv) a tensile elongation of 1.4 to 2.5%.

摘要翻译： 一种无纺织物，其包含在现有技术中未实现的具有高伸长率和高弹性模量的沥青基碳纤维，并且通过改善由中间相沥青衍生的碳纤维的拉伸伸长率获得，由无纺布获得的毡 ，以及生产过程。 无纺织物含有沥青类碳纤维，其中沥青类碳纤维具有（i）通过光学显微镜测得的平均纤维直径（D1）大于2μm和20μm以下，（ii）百分比 通过光学显微镜测定的纤维直径分布（S1）与平均纤维直径（D1）的比例为3〜20％，（iii）80〜300GPa的拉伸弹性模量和（iv）拉伸伸长率为1.4〜2.5 ％。

公开(公告)号：US07947362B2

公开(公告)日：2011-05-24

申请号：US12298745

申请日：2007-04-26

申请人： Hiroshi Hara ,  Masumi Hirata ,  Hiroki Sano ,  Shoichi Takagi

发明人： Hiroshi Hara ,  Masumi Hirata ,  Hiroki Sano ,  Shoichi Takagi

IPC分类号： A01K1/015

CPC分类号： C08J5/24 ,  C08J5/042 ,  C08J2363/00 ,  C08J2383/04 ,  Y10T428/249921 ,  Y10T428/249928 ,  Y10T428/24994 ,  Y10T428/269 ,  Y10T428/2918

摘要： A carbon fiber composite sheet obtained by combining a carbon fiber aggregate with a thermosetting resin component selected from the group consisting of thermosetting silicone-based gel components, thermosetting epoxy resin components and thermosetting silicone resin components, and then curing the thermosetting resin component, the carbon fiber composite sheet having crystallite sizes of at least 5 nm in the direction of growth of the hexagonal mesh surface of the carbon fibers composing the carbon fiber aggregate, and the carbon fiber composite sheet having a thermal conductivity of at least 2 W/(m·K).

摘要翻译： 一种碳纤维复合片材，其通过将碳纤维聚集体与选自热固性硅酮基凝胶组分，热固性环氧树脂组分和热固性有机硅树脂组分的热固性树脂组分组合，然后固化热固性树脂组分，碳 在构成碳纤维集合体的碳纤维的六方网格面的生长方向上具有至少5nm的微晶尺寸的纤维复合片材和导热率为2W /（m·s）以上的碳纤维复合片材 K）。

公开(公告)号：US20090233092A1

公开(公告)日：2009-09-17

申请号：US12298745

申请日：2007-04-26

申请人： Hiroshi Hara ,  Masumi Hirata ,  Hiroki Sano ,  Shoichi Takagi

发明人： Hiroshi Hara ,  Masumi Hirata ,  Hiroki Sano ,  Shoichi Takagi

IPC分类号： B32B5/02 ,  B29C39/02 ,  B32B37/02

CPC分类号： C08J5/24 ,  C08J5/042 ,  C08J2363/00 ,  C08J2383/04 ,  Y10T428/249921 ,  Y10T428/249928 ,  Y10T428/24994 ,  Y10T428/269 ,  Y10T428/2918

摘要： A carbon fiber composite sheet obtained by combining a carbon fiber aggregate with a thermosetting resin component selected from the group consisting of thermosetting silicone-based gel components, thermosetting epoxy resin components and thermosetting silicone resin components, and then curing the thermosetting resin component, the carbon fiber composite sheet having crystallite sizes of at least 5 nm in the direction of growth of the hexagonal mesh surface of the carbon fibers composing the carbon fiber aggregate, and the carbon fiber composite sheet having a thermal conductivity of at least 2 W/(m·K).

摘要翻译： 一种碳纤维复合片材，其通过将碳纤维聚集体与选自热固性硅酮基凝胶组分，热固性环氧树脂组分和热固性有机硅树脂组分的热固性树脂组分组合，然后固化热固性树脂组分，碳 在构成碳纤维集合体的碳纤维的六边形网眼表面的生长方向上具有至少5nm的微晶尺寸的纤维复合片材和导热率至少为2W /（m·K）的碳纤维复合片材， 。

公开(公告)号：US20110284795A1

公开(公告)日：2011-11-24

申请号：US13147130

申请日：2010-01-27

申请人： Hiroshi Sakurai ,  Hiroki Sano ,  Hiroshi Hara ,  Shoichi Takagi

发明人： Hiroshi Sakurai ,  Hiroki Sano ,  Hiroshi Hara ,  Shoichi Takagi

IPC分类号： C09K5/14 ,  D02G3/02 ,  D01F9/145 ,  D02G3/22

CPC分类号： D01F9/145 ,  C08J5/042 ,  C08K7/06 ,  Y10T428/2918

摘要： Pitch-based graphitized short fibers formed from mesophase pitch as a raw material, having an average fiber diameter of 5 to 20 μm, a percentage (CV value) of a variance of a fiber diameter with respect to the average fiber diameter of 8 to 15%, a number average fiber length of 20 to 500 μm, and a crystallite size (La) derived from a growth direction of a hexagonal net plane of 30 nm or more, having graphene sheets that are closed upon observation of an end surface of a filler with a transmission electron microscope, and a substantially flat surface observed with a scanning electron microscope, and having an R value, which is a relative intensity ratio (ID/IG) of an intensity (ID) of a Raman band in the vicinity of 1,360 cm−1 to an intensity (IG) of a Raman band in the vicinity of 1,580 cm−1 measured by laser Raman spectroscopy, in a range of 0.01 to 0.07. The short fibers can be filled in a rubber composition at a high density without inhibition of curing of the rubber composition.

摘要翻译： 由作为原料的中间相沥青形成的间距型石墨化短纤维，平均纤维直径为5〜20μm，纤维直径相对于平均纤维直径的方差的百分比（CV值）为8〜15 ％，数均纤维长度为20〜500μm，由六方网状平面的生长方向衍生的微米尺寸（La）为30nm以上，具有石墨烯片，其在观察到 用扫描型电子显微镜观察到的基本上平坦的表面，并且具有作为拉曼带附近的强度（ID）的相对强度比（ID / IG）的R值， 通过激光拉曼光谱测定的1580cm -1附近的拉曼带的强度（IG）为1360cm -1，为0.01〜0.07。 短纤维可以以高密度填充在橡胶组合物中，而不会抑制橡胶组合物的固化。