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71. 发明专利

JPH0710661A METHOD FOR IMPROVING OXIDATION RESISTANCE OF CARBONACEOUS MATERIAL 失效
公开(公告)号：JPH0710661A
公开(公告)日：1995-01-13
申请号：JP15742393
申请日：1993-06-28
申请人： KOBE STEEL LTD
发明人： MINOGUCHI TOORU , INOUE YOSHIO , KOMATSU NOBUYUKI , SUZUKI TETSUO , YOSHIMURA YUKIHIKO , SHIMAZAKI KATSUNORI
IPC分类号： C04B41/85 , C04B41/50 , C04B41/87
摘要： PURPOSE:To obtain a method for improving the oxidation resistance of a carbonaceous material in which the oxidation resistance of the carbonaceous material can readily and efficiently be improved at an extremely low cost and the carbonaceous material extremely stable to the external environment can be obtained. CONSTITUTION:A carbonaceous material is dipped in an aqueous solution of phosphorous acid and then heat-treated or the carbonaceous material is dipped in an aqueous solution of phosphoric acid and the electrochemical treatment is then carried out by using this carbonaceous material as an anode.

72. 发明专利

JPH059476B2 失效
公开(公告)号：JPH059476B2
公开(公告)日：1993-02-05
申请号：JP9605190
申请日：1990-04-10
申请人： KOBE STEEL LTD
发明人： HAMAGUCHI MAKI , USHIGOE KENJI , NISHIZAWA SETSU , KOMATSU NOBUYUKI
IPC分类号： C10C3/08 , C10C3/02 , C10C3/04 , C10C3/10 , D01F9/145 , D01F9/15 , D01F9/155

73. 发明专利

JPH04333622A PRODUCTION OF PITCH-BASED CARBON FIBER 失效
公开(公告)号：JPH04333622A
公开(公告)日：1992-11-20
申请号：JP13052891
申请日：1991-05-02
申请人： KOBE STEEL LTD
发明人： USHIGOE KENJI , KOMATSU NOBUYUKI , YUMITORI SHUJI , SHIMAZAKI KATSUNORI
IPC分类号： D01D4/02 , D01F9/14 , D01F9/32
摘要： PURPOSE:To obtain a high-performance carbon fiber by carrying out the spinning in such a manner as to prevent the formation of a fiber structure having radial structure in the production of a carbon fiber from meso-phase pitch. CONSTITUTION:The melt-spinning of a meso-phase pitch is carried out by using a multi-nozzle spinneret having the extrusion face of the spinning nozzle protruded forward from the nozzle pack face. A carbon fiber having random structure can be produced in high operation stability by this process and the obtained carbon fiber has remarkably improved strength and elastic modulus.

74. 发明专利

JPS63145423A INFUSIBLIZING METHOD OF PITCH FIBER 失效
公开(公告)号：JPS63145423A
公开(公告)日：1988-06-17
申请号：JP29378986
申请日：1986-12-09
申请人： KOBE STEEL LTD
发明人： SHIMAZAKI KATSUNORI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , KOMATSU NOBUYUKI , YUMITORI SHUJI
IPC分类号： D01F9/14
摘要： PURPOSE:To obtain a carbon fiber having excellent characteristics without causing fiber breakage and crinkling, by charging a bobbin having a wound carbonaceous pitch fiber into an infusiblized furnace and heat-treating the fiber under a specific condition. CONSTITUTION:A carbonaceous pitch fiber wound on a bobbin is charged into a batch type infusiblized furnace and heat-treated under the condition satisfying the relation expressed by the equation SrX0.6

75. 发明专利

JPS62117817A Production of pitch based carbon fiber 失效
标题翻译：生产基于沥青的碳纤维
公开(公告)号：JPS62117817A
公开(公告)日：1987-05-29
申请号：JP25449385
申请日：1985-11-13
申请人： Kobe Steel Ltd
发明人： SHIMAZAKI KATSUNORI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , KOMATSU NOBUYUKI
IPC分类号： D01F9/14
摘要： PURPOSE: To increase the volume efficiency without yarn breakage and obtain the titled high-performance fibers, by spinning pitch into pitch fibers, winding the pitch fibers onto a cylindrical bobbin having heat resistance of a specific temperature or above, infusibilizing the wound fibers and directly carbonizing the fibers.
CONSTITUTION: Tetrahydroquinoline is added to coal based pitch and the resul tant pitch is heat-treated to give a spinning pitch, which is then spun into fibers at 360°C. The spun fibers are then wound around a cylindrical bobbin having ≥900°C heat resistance to afford pitch fibers, which are in a state wound around the bobbin are fed into an infusibilizing furnace and kept at 300°C for 1hr to carry out infusibilization. The fibers in the wound state are fed into carboniza tion furnace and carbonized in N
2 atmosphere while heating at ≥850°C to afford the aimed carbon fibers.
COPYRIGHT: (C)1987,JPO&Japio
摘要翻译：目的：为了提高体积效率而不断纱，获得标题高性能纤维，通过将沥青纤维纺丝成沥青纤维，将沥青纤维缠绕在具有特定温度或更高的耐热性的圆筒形筒管上，使缠绕的纤维直接灌注碳化纤维。构成：将四氢喹啉加入到煤基沥青中，并将重结晶沥青热处理得到纺丝沥青，然后在360℃下纺成纤维。然后将纺丝纤维卷绕在具有> = 900℃耐热性的圆筒形筒管上，以提供卷绕在筒管上的状态的沥青纤维进料到不熔化炉中并在300℃保持1小时以承载消耗不良将缠绕状态的纤维进料到碳化炉中，并在氮气气氛中碳化，同时在> = 850℃下加热，得到目标碳纤维。

76. 发明专利

JPH05345666A 失效
公开(公告)号：JPH05345666A
公开(公告)日：1993-12-27
申请号：JP18174392
申请日：1992-06-15
申请人： KOBE STEEL LTD
发明人： SUZUKI TETSUO , SHIMAZAKI KATSUNORI , KOMATSU NOBUYUKI
IPC分类号： C01B31/02 , C04B35/52
摘要： PURPOSE:To form a mosaic texture in a formed carbon material and to improve the mechanical strength of the material in high efficiency at a low cost by mixing a specific treated material with a powdery thermosetting resin and compression-molding under heating. CONSTITUTION:A powdery meso-phase pitch (A) having a softening point of 100-400 deg.C determined by Mettler method is obtained by selecting particles of coal pitch, etc., passing through a sieve having a sieve opening of about 150mum. The component A is oxidized by heating in air to obtain an oxidized product (B) having an oxygen content of 40-20wt.%. The component B is mixed with a thermosetting resin (C) such as urea resin at a weight ratio of (1-4):(9-6) and pressed to obtain a formed article (D). The article D is hardened at 100-300 deg.C and carbonized or graphitized to produce the formed carbon material.

77. 发明专利

JPH04327218A MELT-SPINNING APPARATUS FOR MOLTEN PITCH 失效
公开(公告)号：JPH04327218A
公开(公告)日：1992-11-16
申请号：JP12470591
申请日：1991-04-27
申请人： KOBE STEEL LTD
发明人： KOMATSU NOBUYUKI , USHIGOE KENJI , SHIMAZAKI KATSUNORI , TOMISAKA YASUSHI
IPC分类号： D01D5/084 , D01F9/14
摘要： PURPOSE:To stably produce a carbon fiber having uniform fiber diameter in high efficiency using a molten pitch raw material by placing a thin heat- insulation layer at the lower side face of a nozzle plate and heating the nozzle plate from the outer circumference as well as from the center. CONSTITUTION:A thin heat-insulation layer having a thickness of

78. 发明专利

JPH04209828A METHOD FOR MELT SPINNING RAW YARN FOR PITCH-BASED CARBON FIBER 失效
公开(公告)号：JPH04209828A
公开(公告)日：1992-07-31
申请号：JP41022890
申请日：1990-12-11
申请人： KOBE STEEL LTD
发明人： KOMATSU NOBUYUKI , SUZUKI TETSUO , SAWA MARIKO , SHIMAZAKI KATSUNORI
IPC分类号： D01F9/14 , D01D5/092
摘要： PURPOSE:To smoothly spin raw yarn for pitch-based carbon fiber without yarn breakage by discharging molten pitch from many spinning holes of a spinneret and regulating the atmospheric temperature under the spinneret so that the distance to the solidification of the molten pitch may be kept within a specific range. CONSTITUTION:Molten pitch is discharged from a spinneret 3 having many spinning holes 4 to spin raw yarn for pitch-based carbon fiber. In the process, the atmospheric temperature under the spinneret 3 is regulated so that the distance (x) from the outlet side end (i.e., the tip faces of the spinning holes 4) of the aforementioned spinneret 3 to the solidifying point (S) of the discharged pitch may be 1-10cm. Specifically, when, e.g. coal-based mesophase pitch having 100% anisotropic content and 305 deg.C softening point is melt spun from a spinneret having 0.15mm spinning hole diameter, 0.3mm land length and 250 number of holes, the atmospheric temperature under the spinneret is regulated to 35 deg.C so as to afford (x) to be 2.3cm. The atmospheric temperature under the spinneret is regulated to 120 deg.C so as to provide (x) to be 3.8cm.

79. 发明专利

JPH02216220A PRODUCTION OF PITCH-BASE CARBON FIBER 失效
公开(公告)号：JPH02216220A
公开(公告)日：1990-08-29
申请号：JP3553789
申请日：1989-02-14
申请人： KOBE STEEL LTD
发明人： SUZUKI TETSUO , NISHIZAWA SETSU , SHIMAZAKI KATSUNORI , KOMATSU NOBUYUKI
IPC分类号： C10C3/04 , D01F9/14 , D01F9/15
摘要： PURPOSE:To prevent the fusion of fibers with each other without using a fusion- preventing agent, etc., by heat-treating an infusibilized spun fiber under specific condition before carbonization and opening the treated fibers. CONSTITUTION:A spun fiber is heat-treated, after infusibilization and before carbonization, in an inert atmosphere under a condition to exhibit a weight loss corresponding to 25-60% of the weight loss of the fiber between 150 deg.C and 1000 deg.C when the fiber is heated from room temperature to 1000 deg.C in an inert atmosphere at a heating rate of 5 deg.C/min. The heat-treated fibers are opened to obtain the subject fibers having flexibility.

80. 发明专利

JPS62273288A SELECTING-BLENDING AND ADJUSTING OF CARBONACEOUS PITCH 失效
公开(公告)号：JPS62273288A
公开(公告)日：1987-11-27
申请号：JP11501486
申请日：1986-05-20
申请人： KOBE STEEL LTD
发明人： SHIMAZAKI KATSUNORI , NISHIZAWA SETSU , TAKAHASHI TOMOJI , KOMATSU NOBUYUKI , YUMITORI SHUJI
IPC分类号： C10C3/00 , C10C3/02 , D01F9/14 , D01F9/145
摘要： PURPOSE:To produce high-performance carbon fibers having improved spinning property without causing melt sticking, fiber breakage, etc., by evaluating carbonaceous pitch on the basis of NMR analysis and selecting or blending and adjusting the pitch as an optimum material. CONSTITUTION:Carbonaceous pitch is subjected to NMR analysis and selected or blended and adjusted to give 80-96% pitch having 100-170ppm constituent ratio of signal intensity of the resultant spectrum and

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