发明公开
- 专利标题： Method of producing a precursor pitch for carbon fiber
- 专利标题（中）： 一种生产用于碳纤维的前体沥青过程。
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申请号： EP84309141.4申请日： 1984-12-28
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公开(公告)号： EP0154754A1公开(公告)日： 1985-09-18
- 发明人: Yudate, Kozo c/o Research Laboratories , Ohsugi, Yukihiro c/o Reseach Laboratories , Kamishita, Mamoru c/o Research Laboratories , Nagasawa, Ken c/o Research Laboratories
- 申请人： KAWASAKI STEEL CORPORATION
- 申请人地址： No. 1-28, 1-Chome Kitahonmachi-Dori Chuo-Ku, Kobe-City Hyogo 651 JP
- 专利权人： KAWASAKI STEEL CORPORATION
- 当前专利权人： KAWASAKI STEEL CORPORATION
- 当前专利权人地址： No. 1-28, 1-Chome Kitahonmachi-Dori Chuo-Ku, Kobe-City Hyogo 651 JP
- 代理机构： Overbury, Richard Douglas
- 优先权： JP44817/84 19840310
- 主分类号： C10C1/00
- IPC分类号： C10C1/00 ; D01F9/14
摘要：
A method of producing a precursor pitch for use in the production of carbon fibers is disclosed, 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 400-450°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 450-500°C under a reduced of 0.1-10 Torr.
公开/授权文献
- EP0154754B1 Method of producing a precursor pitch for carbon fiber 公开/授权日：1988-03-02
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