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公开(公告)号:US4579645A
公开(公告)日:1986-04-01
申请号:US484155
申请日:1983-04-12
摘要: Provided is a starting pitch for producing carbon fiber by heat-treating the starting pitch to obtain a precursor pitch, melt-spinning the precursor pitch, then rendering the resultant pitch fiber infusible, followed by carbonization, and further followed by graphitization if required, the starting pitch comprising a mixture of (a) 100 parts by weight of a pitch and (b) 5 to 500 parts by weight of a methanol-insoluble and benzene-soluble component contained in a heavy oil obtained in a fluid catalytic cracking of petroleum, the heavy oil having a boiling range not lower than 200.degree. C.
摘要翻译: 提供通过热处理起始间距以获得前体沥青,熔融纺丝前体沥青,然后使所得沥青纤维不熔化,然后碳化,然后如果需要石墨化,然后进行石墨化,生产碳纤维的起始沥青 起始沥青包含(a)100重量份沥青和(b)5至500重量份在石油流化催化裂化中获得的重油中所含的甲醇不溶性和苯可溶性组分的混合物, 重油的沸点不低于200℃
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公开(公告)号:US5968435A
公开(公告)日:1999-10-19
申请号:US65276
申请日:1998-04-23
申请人: Osamu Kato , Yoshio Kishimoto , Yutaka Arai , Hajime Nakajima , Masatoshi Furuyama , Tsutomu Kihara , Michiharu Harakawa , Shigeo Hara , Ken Kobayashi , Yoshiyuki Doken , Tsutomu Nakamura
发明人: Osamu Kato , Yoshio Kishimoto , Yutaka Arai , Hajime Nakajima , Masatoshi Furuyama , Tsutomu Kihara , Michiharu Harakawa , Shigeo Hara , Ken Kobayashi , Yoshiyuki Doken , Tsutomu Nakamura
摘要: In a step of spinning a molten mesophase pitch in a process for manufacturing a pitch-type carbon fiber, the pitch is allowed to pass through an orifice and to be contracted once, is then expanded in an introduction port with a diameter greater than that of the orifice, and is then allowed to pass through an outlet pore formed at a collecting portion to spin the pitch. The pitch-type carbon fiber has a high elastic modulus in tension and high compressive strength.
摘要翻译: 在沥青型碳纤维的制造方法中纺丝熔融中间相沥青的步骤中,使沥青通过孔口并收缩一次,然后在直径大于 孔,然后允许其通过形成在收集部分处的出口孔以旋转沥青。 沥青型碳纤维的拉伸弹性模量高,抗压强度高。
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公开(公告)号:US4717331A
公开(公告)日:1988-01-05
申请号:US739155
申请日:1985-05-30
申请人: Naoyuki Maeda , Osamu Kato , Hirosaku Oshimi , Akira Nii , Hiroshi Shimada , Michiharu Harakawa , Takuji Hirano , Shigeo Hara
发明人: Naoyuki Maeda , Osamu Kato , Hirosaku Oshimi , Akira Nii , Hiroshi Shimada , Michiharu Harakawa , Takuji Hirano , Shigeo Hara
CPC分类号: D01F9/00 , B29C47/12 , D01D4/02 , B29C47/0014 , B29C47/003
摘要: A melt-spinning nozzle in which is disposed an elongated molded piece so as to form a space serving as a melt flow path between the elongated molded piece and the inner wall of the nozzle.
摘要翻译: 一种熔融纺丝喷嘴,其中设置有细长的模制件,以形成用作细长模制件和喷嘴内壁之间的熔体流动路径的空间。
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