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    SILICON CARBIDE INORGANIC FIBER AND ITS PRODUCTION
    91.
    发明专利
    SILICON CARBIDE INORGANIC FIBER AND ITS PRODUCTION 失效

    公开(公告)号：JPH10158937A

    公开(公告)日：1998-06-16

    申请号：JP14987497

    申请日：1997-05-26

    Applicant: UBE INDUSTRIES

    Inventor： ISHIKAWA TOSHIHIRO ,  HARADA YOSHIHIKO ,  INOUE YOSHIYUKI ,  YAMAOKA HIROYUKI ,  SATO MITSUHIKO ,  SHIBUYA MASAKI

    IPC: D01F9/10 ,  C04B35/571

    Abstract: PROBLEM TO BE SOLVED: To obtain a silicon carbide inorganic fiber having excellent mechanical properties, alkali resistance, heat-resistance and durability and useful for engine parts of aircraft, etc., by adding a compound of a metallic atom of the group 2A, etc., to a specific polysilane and spinning the mixture under a specific condition. SOLUTION: A compound of a metal selected from the metals of the groups 2A, 3A and 3B and exhibiting an amphoteric or basic nature in the form of an oxide is added to a polysilane having a C/Si molar ratio of >=1.5 and the mixture is made to react by heating in an inert gas to obtain a metalcontaining organic silicon polymer. The objective silicon carbide inorganic fiber having an oxygen content of is produced by melt-spinning the above polymer, infusibilizing the produced fiber by heating at 50-170 deg.C in an oxygen-containing atmosphere, preheating the infusibilized fiber in an inert atmosphere and finally baking the preheated fiber at a high temperature in an inert gas atmosphere or a reducing gas atmosphere.

    HIGH HEAT-RESISTANT CERAMIC FIBER AND ITS PRODUCTION
    92.
    发明专利
    HIGH HEAT-RESISTANT CERAMIC FIBER AND ITS PRODUCTION 失效

    公开(公告)号：JPH0978358A

    公开(公告)日：1997-03-25

    申请号：JP22833195

    申请日：1995-09-05

    Applicant: UBE INDUSTRIES

    Inventor： ISHIKAWA TOSHIHIRO ,  HARADA YOSHIKATSU ,  INOUE YOSHIYUKI ,  KAMITOKU YASUHIKO

    IPC: D01F9/10

    Abstract: PROBLEM TO BE SOLVED: To obtain a ceramic fiber having high heat resistance and excellent mechanical properties by spinning a polytitanocarbosilane, treating the spun fiber for infusibilization and mineralization, treating with boron, and subsequently burning the treated fiber. SOLUTION: A polytitanocarbosilane composed of a carbosilane structure and a siloxane structure is melt spun, subsequently treated under heating in air and further in nitrogen to obtain an infusibilized fiber. Then, the infusibilized fiber is heated at 1200-1450 deg.C in an inert gas such as nitrogen into a mineralized fiber. Subsequently, the fiber is further heated in a boron-containing gas such as boron oxide at 1200-1450 deg.C in a boron treatment, and the temperature is further elevated up to 1700-2100 deg.C to obtain a ceramic fiber consisting of crystals mainly containing β-SiC, TiB2 , and TiC1-x (x satisfies 0

    HYBRID FIBER REINFORCED CARBONACEOUS COMPOSITE MATERIAL
    97.
    发明专利
    HYBRID FIBER REINFORCED CARBONACEOUS COMPOSITE MATERIAL 失效

    公开(公告)号：JPH03232767A

    公开(公告)日：1991-10-16

    申请号：JP2527990

    申请日：1990-02-06

    Applicant: UBE INDUSTRIES

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

    IPC: C04B35/52 ,  C04B35/80

    Abstract: PURPOSE:To provide the title carbonaceous composite material having excellent strength, elasticity and toughness by using hybrid fibers containing inorganic fibers obtained from specific polycyclic aromatic polymers as reinforcing materials and constituting matrix of carbon. CONSTITUTION:(A) An inorganic fiber which is obtained from a silicon- containing polycyclic aromatic polymer and comprise a carbonaceous material in a crystal arranged state, a crystalline carbon in a non-orientated state and a Si-C-O substance, (B) an inorganic fiber which is obtained from a polycyclic aromatic polymer containing an element selected from Ti, Zr and Hf and silicon and comprise a carbonaceous material in a crystal arranged state, crystalline carbon in a non-orientated state and a Si-M-C-O substance (M is Ti, Zr or Hf) and (C) carbon fiber, glass fiber, boron fiber, alumina fiber, etc., are prepared. Then hybrid fibers which contain at least one of the component A and the component B and comprise at least two fibers selected from the cokmponents A, B and C are produced. Then the hybrid fibers are used as a reinforcing material and carbon is utilized to produce the title composite material.

    HYBRID FIBER REINFORCED PLASTIC COMPOSITE MATERIAL
    99.
    发明专利
    HYBRID FIBER REINFORCED PLASTIC COMPOSITE MATERIAL 失效

    公开(公告)号：JPH03103475A

    公开(公告)日：1991-04-30

    申请号：JP23175889

    申请日：1989-09-08

    Applicant: UBE INDUSTRIES

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

    IPC: C08K7/02 ,  C08K7/00 ,  C08L101/00

    Abstract: PURPOSE:To obtain a plastic composite material having excellent mechanical properties and advantage in terms of cost, comprising hybrid fibers of specific inorganic fibers and fibers selected from several kinds of fiber groups as a reinforcing material and a plastic as a matrix. CONSTITUTION:A plastic composite material containing hybrid fibers of (A) inorganic fibers which are obtained from a silicon-containing polycyclic aromatic polymer, comprise constituent components of A1: crystalline carbon having (core) radical, (skin) onion, random or mosaic structure, A2: crystalline carbon in a nonorientated state and/or amorphous carbon and A3: an aggregate composed of amorphous phase consisting of Si, C and O and/or crystalline ultrafine particles consisting of beta-SiC having

    FIBER-REINFORCED CARBONACEOUS COMPOSITE MATERIAL
    100.
    发明专利
    FIBER-REINFORCED CARBONACEOUS COMPOSITE MATERIAL 失效

    公开(公告)号：JPH038768A

    公开(公告)日：1991-01-16

    申请号：JP24498289

    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 title composite material of improved mechanical strength and resistance to corrosion, heat and wear, consisting of, as reinforcing material, inorganic fiber obtained from a silicon-contg. polycyclic aromatic polymer and, as matrix, a carbonaceous inorganic material obtained from said polymer. CONSTITUTION:The objective composite material consisting of (A) as reinforcing material, inorganic fiber and (B) as matrix, a carbonaceous inorganic material. Both said inorganic fiber and inorganic material are obtained from a silicon- contg. polycyclic aromatic polymer. The constituents of said fiber are made up of (1) carbonaceous matter with crystal arrangement selected from e.g. a specified radial structure, (2) non-oriented crystalline carbon and/or noncrystalline carbon and (3) Si-C-O matter. The constituents of skid inorganic material are made up of (a) crystalline carbon or crystalline carbon plus noncrystalline carbon, (b) non-oriented crystalline carbon and/or noncrystalline carbon and (c) Si-C-O matter.

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