公开(公告)号：US4758326A

公开(公告)日：1988-07-19

申请号：US930045

申请日：1986-11-12

申请人： Yukihiro Ohsugi ,  Kozo Yudate ,  Mamoru Kamishita

发明人： Yukihiro Ohsugi ,  Kozo Yudate ,  Mamoru Kamishita

IPC分类号： C10C3/02 ,  C10C3/00 ,  C10C3/08 ,  C10C3/10 ,  D01F9/145 ,  D01F9/15 ,  C10C1/20

CPC分类号： C10C3/08 ,  C10C3/002

摘要： A method of producing a precursor pitch suitable for the production of carbon fibers, which method includes dissolving a coal tar pitch in a particular solvent to remove a solvent insoluble matter, distilling off the solvent to obtain a purified pitch containing no free carbon, and heat-treating the purified pitch to obtain an objective precursor pitch.

摘要翻译： 一种制备适于生产碳纤维的前体沥青的方法，该方法包括将煤焦油沥青溶解在特定的溶剂中以除去溶剂不溶物，蒸除溶剂以获得不含游离碳的纯化沥青和加热 - 提纯纯化沥青以获得客观的前体沥青。

公开(公告)号：US5115279A

公开(公告)日：1992-05-19

申请号：US560828

申请日：1990-07-31

申请人： Hisashi Nishikawa ,  Ikuo Fujisawa ,  Yukihiro Ohsugi

发明人： Hisashi Nishikawa ,  Ikuo Fujisawa ,  Yukihiro Ohsugi

IPC分类号： G03G15/20 ,  H05B3/00

CPC分类号： G03G15/2064 ,  G03G15/2025 ,  G03G15/2039 ,  G03G15/2053

摘要： According to the present invention an exothermic member is provided freely rotatably and formed in a ring form composed of an exothermic resistor layer of high resistivity formed on an inner peripheral surface and a conductor layer of low resistivity formed on the outer peripheral surface of the exothermic resistor layer. A medium-leading member is provided for forming a conveyance path for media with the outer peripheral surface of the exothermic member in between and a pressing electrode member is provided for supporting the exothermic member in abutting against the exothermic resistor layer in a conductive state in a position opposing to the medium-leading member. A power supplying electrode is also provided being connected to the conductor layer making contact at least with a brim part on one side of the exothermic member and voltage is applied between the exothermic member and the pressing electrode member by a power supply and only a part of the exothermic member against which the pressing electrode member is abutting generates heat. Such a structure allows for fixing an image to be transcribed consisting essentially of toner formed on a recording medium when it passes through this part of the conveyance path.

公开(公告)号：US4589975A

公开(公告)日：1986-05-20

申请号：US686651

申请日：1984-12-27

申请人： Kozo Yudate ,  Yukihiro Ohsugi ,  Mamoru Kamishita ,  Ken Nagasawa

发明人： Kozo Yudate ,  Yukihiro Ohsugi ,  Mamoru Kamishita ,  Ken Nagasawa

IPC分类号： C10C3/04 ,  C10C1/00 ,  D01F9/15 ,  C10C3/00 ,  C10C3/02 ,  D01F9/12

CPC分类号： C10C1/00

摘要： A method of producing a precursor pitch for use in the production of carbon fibers, which comprises hydrogenating a soft or middle tar pitch to obtain a hydrogenated pitch containing no free carbon and high molecular weight components and then subjecting it to a heat treatment. In this method, the hydrogenation is carried out in the presence of tetralin at a temperature of 400.degree.-450.degree. C., and the heat treatment after the removal of solvent insoluble components and solvent is carried out in an inert gas atmosphere at a temperature of 450.degree.-500.degree. C. and under a reduced pressure of 0.1-10 Torr.

摘要翻译： 一种生产用于生产碳纤维的前体沥青的方法，其包括将软或中焦油沥青加氢以获得不含游离碳和高分子量组分的氢化沥青，然后进行热处理。 在该方法中，在四氢化萘存在下，在400〜-450℃的温度下进行氢化，除去溶剂不溶性成分和溶剂后的热处理在惰性气体气氛中，在温度 450℃-500℃，减压0.1-10托。