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1. 发明授权

US5968435A Process for manufacturing pitch-type carbon fiber 失效
标题翻译：制造沥青型碳纤维的方法
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
IPC分类号： D01F9/14 , D01D4/02 , D01D5/253 , D01F9/145 , D01F9/15 , D01D4/00 , D01F9/12
CPC分类号： D01D5/253 , D01D4/02 , D01F9/15
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。

2. 发明授权

US5370856A High strength carbon fiber and pre-carbonized fiber 失效
标题翻译：高强度碳纤维和预碳化纤维
公开(公告)号：US5370856A
公开(公告)日：1994-12-06
申请号：US976701
申请日：1992-11-16
申请人： Yutaka Arai , Masatoshi Furuyama , Hirofumi Sunago , Tadao Tomioka
发明人： Yutaka Arai , Masatoshi Furuyama , Hirofumi Sunago , Tadao Tomioka
IPC分类号： D01F9/14 , D01F9/145 , D01F9/12
CPC分类号： D01F9/145
摘要： A graphitized fiber heat-treated at a temperature higher than 2300.degree. C. in an inert atmosphere, of which oxidation weight reduction rate A in dry air at 650.degree. C. is in the range defined by the equation (1), of which BET specific surface area S determine by nitrogen or krypton adsorption technique at -196.degree. C. is in the range defined by the equation (2), and of which pore volume determined by the carbon dioxide adsorption technique at 25.degree. C. is 0.001 ml/g or less: ##EQU1## where, A is the oxidation weight reduction rate in dry air at 650.degree. C. in min.sup.-1S is the specific surface area determine by nitrogen or kypton adsoprtion technique at -196.degree. C. in m.sup.2 g.sup.-1D is the mean monofilament diameter of the graphitized fiber in .mu.m and .rho. is the density of the graphitized fiber in gcm.sup.-3.
摘要翻译：在惰性气氛中在高于2300℃的温度下热处理的石墨化纤维，其中在650℃的干燥空气中的氧化重量减少率A在由式（1）定义的范围内，其中BET 在-196℃下通过氮或氪吸附技术测定的比表面积S在等式（2）限定的范围内，其中通过二氧化碳吸附技术在25℃下测定的孔体积为0.001ml / g或更小：（1）（2）其中A是在650℃的干燥空气中的分解-1中的氧化重量减少率S是通过氮气或吉普赛补偿技术确定的比表面积在-196℃，m2g-1 D是石墨化纤维的平均单丝直径，μm，rho是以gcm-3表示的石墨化纤维的密度。

3. 发明授权

US4975263A Process for producing mesophase pitch-based carbon fibers 失效
标题翻译：生产中间相沥青基碳纤维的方法
公开(公告)号：US4975263A
公开(公告)日：1990-12-04
申请号：US303654
申请日：1989-01-30
申请人： Masatoshi Furuyama , Yasunori Sajiki , Takeshi Hamada , Tadao Tomioka
发明人： Masatoshi Furuyama , Yasunori Sajiki , Takeshi Hamada , Tadao Tomioka
IPC分类号： D01F9/14 , D01F9/145 , D01F9/15
CPC分类号： D01F9/145
摘要： A process for producing a carbon fiber by subjecting a pitch fiber, obtained by melt spinning a carbonaceous mesophase pitch, to stabilization, followed by a carbonization or graphitization treatment, wherein the stabilization is carried out under an oxidative atmosphere containing 0.1% to 40% by volume of NO.sub.2 and 4% to 40% by volume of H.sub.2 O at a temperature of from 100.degree. C. to 400.degree. C.
摘要翻译：通过将通过熔融纺丝含碳中间相沥青获得的沥青纤维进行稳定化，随后进行碳化或石墨化处理来制备碳纤维的方法，其中稳定化在含有0.1％至40％的氧化气氛下进行，体积的NO2和4〜40体积％的H 2 O在100〜400℃的温度下进行。

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