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1. 发明授权

EP0526787B1 Process for producing pitch-based carbon fiber 失效
标题翻译：一种用于生产碳纤维的方法，沥青基
公开(公告)号：EP0526787B1
公开(公告)日：1997-10-22
申请号：EP92112253.7
申请日：1992-07-17
申请人： PETOCA Ltd.
发明人： Kawamura, Toshifumi, c/o Petoca, Ltd. , Maeda, Takashi, c/o Petoca, Ltd.
IPC分类号： D01F9/145 , C10C3/02
CPC分类号： D01F9/145

2. 发明公开

EP0554119A1 Process for preparing pitch for matrix 失效
标题翻译： Verfahren zur Herstellung von Pechfüreine Matrix。
公开(公告)号：EP0554119A1
公开(公告)日：1993-08-04
申请号：EP93300686.8
申请日：1993-01-29
申请人： PETOCA LTD.
发明人： Maeda, Takashi, c/o Petoca, Ltd., , Kawamura, Toshifumi, c/o Petoca, Ltd.
IPC分类号： C04B35/52 , C10C3/04 , C04B35/83
CPC分类号： C10C3/04 , C04B35/80 , C04B35/83 , C10C3/023
摘要： Disclosed is a process for preparing pitch for matrix, said process is characterized in that an optically isotropic pitch is formed into a fibrous pitch, and the fibrous pitch thus obtained is nitrated with a nitration reagent in the presence of an acid catalyst.
The pitch for matrix obtained according to the present invention can be carbonized with a low energy, high in carbonization yield, low in softening point and excellent in moldability and impregnability.
摘要翻译：公开了一种制备基质沥青的方法，所述方法的特征在于将光学各向同性沥青形成纤维间距，并将所得纤维沥青在硝酸催化剂存在下用硝化试剂进行硝化。根据本发明获得的基体沥青可以以低能量，高碳化收率，低软化点，成型性和浸渍性优异的方式进行碳化。

3. 发明公开

EP0526787A2 Process for producing pitch-based carbon fiber 失效
标题翻译： Verfahren zur Herstellung von auf pechbasierten Kohlenstoffasern。
公开(公告)号：EP0526787A2
公开(公告)日：1993-02-10
申请号：EP92112253.7
申请日：1992-07-17
申请人： PETOCA Ltd.
发明人： Kawamura, Toshifumi, c/o Petoca, Ltd. , Maeda, Takashi, c/o Petoca, Ltd.
IPC分类号： D01F9/145 , C10C3/02
CPC分类号： D01F9/145
摘要： There is disclosed a process for producing pitch-based carbon fiber which comprises melt spinning an optically isotropic pitch or a mesophase pitch to form pitch fiber; subjecting the pitch fiber to liquid-phase oxidative polymerization in a solvent e.g. acetic acid in the presence of an acid catalyst such as strong inorganic acids and a crosslinking selected from formalin, paraformaldehyde or tioxane agent to form infusibilized fiber; and carbonizing the infusiblized fiber. The above process enables low temperature and short time infusibilizing treatment of optically isotropic pitch fiber having a low softening point which has heretofore been difficult because of failure to preserve the original fibrous shape during infusibilization, and also efficient production of mesophase pitch-based carbon fibers as well as optically isotropic pitch-based carbon fibers each being improved in physical properties.
摘要翻译：公开了一种制备沥青类碳纤维的方法，该方法包括熔融纺丝光学各向同性沥青或中间相沥青以形成沥青纤维; 使沥青纤维在溶剂中进行液相氧化聚合。乙酸在酸性催化剂如强无机酸和选自福尔马林，多聚甲醛或者代谢二恶烷剂的交联剂存在下形成不熔化的纤维; 并将不熔化的纤维碳化。上述方法使得由于在不熔化期间不能保持原始纤维形状而具有低软化点的光学各向同性沥青纤维的低温和短时间渗透处理，并且还有效地生产中间相沥青基碳纤维作为以及光学各向同性沥青基碳纤维的物理性质均得到改善。

4. 发明授权

EP0554119B1 Process for preparing pitch for matrix 失效
标题翻译：一种用于生产沥青的一个矩阵处理
公开(公告)号：EP0554119B1
公开(公告)日：1997-05-14
申请号：EP93300686.8
申请日：1993-01-29
申请人： PETOCA LTD.
发明人： Maeda, Takashi, c/o Petoca, Ltd., , Kawamura, Toshifumi, c/o Petoca, Ltd.
IPC分类号： C04B35/52 , C10C3/04 , C04B35/83
CPC分类号： C10C3/04 , C04B35/80 , C04B35/83 , C10C3/023

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