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    CARBONACEOUS INORGANIC FIBER AND PRODUCTION THEREOF
    44.
    发明专利
    CARBONACEOUS INORGANIC FIBER AND PRODUCTION THEREOF 失效

    公开(公告)号：JPH04126823A

    公开(公告)日：1992-04-27

    申请号：JP24263390

    申请日：1990-09-14

    Applicant: UBE INDUSTRIES

    Inventor： YAMAMURA TAKETAMI ,  KUGIMOTO JUNICHI ,  SHIOJI YASUHIRO ,  TANIGAWA NORINAGA ,  IWAMOTO MASATOSHI

    IPC: D01F9/10 ,  D01F9/145 ,  D01F9/22

    Abstract: PURPOSE:To obtain the subject new fiber, containing crystalline and amorphous carbon and silicon-carbon-oxygen substances in a specific proportion as components and excellent in oxidation resistance and wettability for plastics with a high electric conductivity and a small thermal expansion coefficient. CONSTITUTION:The objective fiber is obtained by mixing (A) an organosilicon polymer prepared by heating dimethylchlorosilane, etc., in an inert gas with (B) a polycyclic aromatic compound such as petroleum-based pitch, reacting both at, e.g. 250-500 deg.C, providing a random copolymer, mixing the resultant random copolymer with (C) a polyacrylonitrile-based polymer, spinning the prepared mixture and then infusibilizing and burning the spun fiber. The aforementioned fiber contains crystalline carbon in which condensed aromatic rings are elongated in the fiber axis direction, crystalline carbon in which the turbostratic structure is not agreement with the fiber axis direction, amorphous carbon and aggregates, composed of ultra-fine particles having

    HYBRID YARN
    45.
    发明专利
    HYBRID YARN 失效

    公开(公告)号：JPH03234820A

    公开(公告)日：1991-10-18

    申请号：JP2527890

    申请日：1990-02-06

    Applicant: UBE INDUSTRIES

    Inventor： YAMAMURA TAKETAMI ,  KUGIMOTO JUNICHI ,  ISHIKAWA TOSHIHIRO ,  SHIOJI YASUHIRO ,  SHIBUYA MASAKI

    IPC: C04B35/52 ,  C01B31/02 ,  D01F9/10 ,  D01F9/14

    Abstract: PURPOSE:To obtain the title yarn suitable as a reinforcing material for composite material, by using a yarn obtained from a silicon-containing polycyclic aromatic polymer and/or a polycyclic aromatic polymer containing one of Ti, Zr and Hf and silicon as the one component. CONSTITUTION:The objective hybrid yarn contains, as the one component, a yarn [containing carbonaceous substance in a crystal orientation state from a mesophase state and a crystalline substance in an amorphous state changed from an optically isotropic state and/or amorphous carbon and an Si-C-O substance having Si:C:O of (30-70):(20-60):(0.5-10)] obtained from a silicon-containing polycyclic aromatic polymer and/or a yarn [containing carbonaceous substance in a crystal orientation state changed from a mesophase state and carbonaceous substance in amorphous state changed from an optically isotropic state and an Si-M-C-O substance having Si:M:C:O of (5-70):(0.5-45):(20-40):(0.01-30) and M is Ti, Zr or Hf]. Carbon fibers, glass fibers and boron fibers, etc., are used as the other component.

    HEAT-RESISTANT FIBER REINFORCED INORGANIC COMPOSITE MATERIAL
    46.
    发明专利
    HEAT-RESISTANT FIBER REINFORCED INORGANIC COMPOSITE MATERIAL 失效

    公开(公告)号：JPH03232776A

    公开(公告)日：1991-10-16

    申请号：JP2528090

    申请日：1990-02-06

    Applicant: UBE INDUSTRIES

    Inventor： YAMAMURA TAKETAMI ,  KUGIMOTO JUNICHI ,  ISHIKAWA TOSHIHIRO ,  SHIOJI YASUHIRO ,  SHIBUYA MASAKI

    IPC: C04B35/565 ,  C04B35/52 ,  C04B35/56 ,  C04B35/80 ,  C04B35/83

    Abstract: PURPOSE:To prevent occurrence of heat stress cracking and make it possible to exhibit excellent oxidation resistance by each using an inorganic fiber obtained from a silicon-containing cyclic aromatic polymer as a reinforcing material and a crystalline carbon led from a polycyclic aromatic compound kept in mesophase state as a matrix. CONSTITUTION:An inorganic fiber obtained from a silicon-containing polycyclic aromatic polymer is used as a reinforcing material and crystalline carbon, etc., led from a polycyclic aromatic compound kept in mesophase state and constituting the polymer is used as a matrix to provide the aimed heat resistant fiber reinforced inorganic composition. The inorganic fiber is an aggregate consisting of a carbonaceous substance led from a polycyclic aromatic compound kept in mesophase state and constituting a polymer in the component and amorphous phase composed of Si, C and O and/or crystalline ultrafine grains composed of beta-SiC having

    FIBER REINFORCED CARBONACEOUS COMPOSITE MATERIAL
    47.
    发明专利
    FIBER REINFORCED CARBONACEOUS COMPOSITE MATERIAL 失效

    公开(公告)号：JPH03109265A

    公开(公告)日：1991-05-09

    申请号：JP24498189

    申请日：1989-09-22

    Applicant: UBE INDUSTRIES

    Inventor： YAMAMURA TAKETAMI ,  KUGIMOTO JUNICHI ,  ISHIKAWA TOSHIHIRO ,  SHIOJI YASUHIRO ,  SHIBUYA MASAKI

    IPC: C04B35/52 ,  C04B35/80 ,  C04B35/83

    Abstract: PURPOSE:To provide the above composite material which is excellent in strength, elasticity, toughness, etc., by using the specific high-strength and high- modulus inorg. fibers obtd. from a silicon-contg. polycyclic arom. polymer as a reinforcing material and a specific carbonaceous inorg. material as a matrix. CONSTITUTION:The fiber reinforced carbonaceous composite material is produced by using the high-strength and high-modulus inorg. fibers obtd. from the silicon-contg. polycyclic arom. polymer as the reinforcing material and the carbonaceous inorg. material obtd. from the silicon-contg. polyclic arom. polymer as the matrix. The constituting components of the inorg. fibers are the crystalline carbon derived from a polycyclic arom. compd. of a mesophase state constituting the polymer, the carbon in a non-oriented state derived from an optically isotropic polycyclic arom. compd. contg. the components insoluble in org. solvents constituting the polymer, and amorphous materials, etc., contg. Si, C, O, etc. The constituting components of the inorg. material are the crystalline carbon derived from the polycyclic arom. compd. constituting the polymer, amorphous carbon, and amorphous materials contg. Si, C, and O, etc.

    FIBER-REINFORCED CARBON MATERIAL
    48.
    发明专利
    FIBER-REINFORCED CARBON MATERIAL 失效

    公开(公告)号：JPH03103359A

    公开(公告)日：1991-04-30

    申请号：JP23693289

    申请日：1989-09-14

    Applicant: UBE INDUSTRIES

    Inventor： YAMAMURA TAKETAMI ,  KUGIMOTO JUNICHI ,  ISHIKAWA TOSHIHIRO ,  SHIOJI YASUHIRO ,  SHIBUYA MASAKI

    IPC: C04B35/52 ,  C01B31/02 ,  C04B35/80 ,  C04B35/83

    Abstract: PURPOSE:To improve mechanical characteristics, corrosion resistance, heat resistance and oxidation resistance by blending a specified inorganic fiber as a reinforcing material with carbon as a matrix. CONSTITUTION:By induction from a silicon-containing polycyclic aromatic polymer, (D) a carbonaceous inorganic filament composed of (A) a carbonaceous material produced from a mesophase polycyclic aromatic compound and having one or more crystalline orientation states selected from radial structure, onion one, random one, etc., (B) a non-orientated crystalline carbonaceous material and/or an amorphous carbon derived from an optically isotropic polycyclic aromatic compound and (C) an Si-C-O material consisting of an aggregate between an amorphous phase containing Si, C and O and/or crystalline ultrafine particles of beta-SiC having

    CARBONACEOUS INORGANIC FIBER-REINFORCED CERAMIC COMPOSITE MATERIAL
    49.
    发明专利
    CARBONACEOUS INORGANIC FIBER-REINFORCED CERAMIC COMPOSITE MATERIAL 失效

    公开(公告)号：JPH0388778A

    公开(公告)日：1991-04-15

    申请号：JP23175789

    申请日：1989-09-08

    Applicant: UBE INDUSTRIES

    Inventor： YAMAMURA TAKETAMI ,  KUGIMOTO JUNICHI ,  ISHIKAWA TOSHIHIRO ,  SHIOJI YASUHIRO ,  SHIBUYA MASAKI

    IPC: C04B35/80

    Abstract: PURPOSE:To reduce the lowering of strength at high temp. and to improve the thermal shock resistance of the composite material by obtaining the inorg. fiber of the material from a silicon-contg. polycyclic aromatic polymer and specifying the composition. CONSTITUTION:The fiber is obtained from a silicon-contg. polycyclic aromatic polymer, and is the aggregate consisting of (a) a carbonaceous material derived from the mesophase polycyclic aromatic compd. constituting the polymer and exhibiting >=1 kinds of crystal arrangement among radial, onion, random, core- radial, skin-onion and mosaic structures, (b) non-oriented crystalline and/or amorphous carbon derived from an optically isotropic polycyclic aromatic compd. contg. an org. solvent-insoluble component constituting the polymer and (c) the amorphous phase consisting of Si, C and/or the crystalline superfine grains consisting of beta-Sic and having =1 kinds among the carbide, nitride, oxide and glass ceramic.

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