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公开(公告)号：JPH03232769A
公开(公告)日：1991-10-16
申请号：JP2827290
申请日：1990-02-09
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To obtain the title 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 from a specific inorganic substance. 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, crystalline carbon in a non-orientated state and a Si-C-O substance, (B) an inorganic fiber which is obtained from a metal- containing polycyclic aromatic polymer 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, etc., are prepared. Hybrid fibers containing at least one of the component A and the component B and comprising at least two selected from the component A, the component B and the component C are produced. Then the hybrid fibers are used as a reinforcing material and a carbonaceous inorganic substance having the same composition as that of the component B is utilized as matrix to give the title carbonaceous composite material.
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公开(公告)号：JPH03232768A
公开(公告)日：1991-10-16
申请号：JP2827090
申请日：1990-02-09
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 obtain the title composite material having excellent heat resistance and oxidation resistance by using an inorganic fiber obtained from a metal- containing polycyclic aromatic polymer, comprising the fiber in matrix having the same composition as the fiber and increasing silicon content with far from the surface of the fiber. CONSTITUTION:An inorganic fiber which is obtained from a metal-containing polycyclic aromatic polymer, comprise constituent components consisting of a carbonaceous material in a crystal arranged state of radial structure derived from a polycyclic aromatic compound, crystalline carbon and (or) amorphous carbon in a non-orientated state and a Si-M-C-O substance (M is Ti, Zr or Hf) is prepared. On the other hand, an inorganic substance which is obtained from a metal-containing polycyclic aromatic polymer and comprises the same constituent components as that of the inorganic fiber is prepared. The inorganic substance is used as matrix, the inorganic fiber is utilized as a reinforcing material and the matrix texture is controlled to have gradient texture of increasing silicon content with separation from the surface of the inorganic fiber to produce a heat-resistant fiber reinforced inorganic composite material.
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公开(公告)号：JPH03109264A
公开(公告)日：1991-05-09
申请号：JP24498089
申请日：1989-09-22
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
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 metal-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 inorg. fibers obtd. from the metal-contg. polycyclic arom. polymer as the reinforcing material and the carbonaceous inorg. material obtd. from the metal-contg. polycyclic 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, Ti, 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, etc., contg. Si, metals (e.g. Ti), C, and O.
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公开(公告)号：JPH03104926A
公开(公告)日：1991-05-01
申请号：JP20664089
申请日：1989-08-11
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To prepare the subject fiber having excellent mechanical properties, oxidation resistance, etc., by spinning a silicon-containing polycyclic aromatic polymer composed of a specific carbonaceous material, crystalline carbon, etc., and a Si-C-O substance. CONSTITUTION:(A) 100 pts.wt. of one kind or more of crystal-oriented state carbonaceous materials selected from the group of radial structure, onion structure, random structure, etc., derived from polycyclic aromatic compounds of mesophase state, (B) 100 pts.wt. of crystalline or amorphous carbon of non- oriented state derived from optically isotropically polycyclic aromatic compounds containing organic solvent insolubles and (C) 0.015-200 pts.wt. of a Si-C-O substance of aggregates comprising an amorphous phase comprising Si, C and O, crystalline ultrafine particles having particle sizes of
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公开(公告)号：JPH0317237A
公开(公告)日：1991-01-25
申请号：JP24497989
申请日：1989-09-22
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To obtain the metal-matrix composite having excellent mechanical strength by regulating an inorganic fiber constituted of a carbonaceous material prepd. under specified conditions and showing a crystal arraying state, crystalline carbon in a nonoriented state and an amorphous phase having specified compsn. as a reinforcing material. CONSTITUTION:The high strength high elastic modulus inorganic fiber is composed of a carbonaceous material showing a crystal oriented state such as a radial structure or an anionic structure introduced from a polycyclic aromatic compound in a mesophase state constructing a polymer, crystalline carbon and/or amorphous carbon in a nonoriented state introduced from a polycyclic aromatic compound of optical isotropy including the unmolten part of an organic solvent constructing a polymer, and Si-C-O in which the proportion of the constitutional elements is regulated to, by weight, 30 to 70% Si, 20 to 60% C and 0.5 to 10% O is formed from an aggregate constituted of amorphous ultra-fine grains substantially constituted of Si, C and O and/or crystalline ultra-fine grains substantially constituted of beta-SiC having
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Patent Agency Ranking
公开(公告)号：JPH02311531A
公开(公告)日：1990-12-27
申请号：JP13130089
申请日：1989-05-26
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To improve the mechanical properties and resistance to oxidation, abrasion, and heat by thermally reacting and/or thermally melting a specific random copolymer with an arom. polycyclic compd. CONSTITUTION:100 pts.wt. random copolymer (A) comprising a transition metal- contg. organosilicon polymer and an arom. polycyclic compd. consisting of a thermally treated petroleum- or coal-derived pitch, wherein Si atoms of said organosilicon polymer are bonded at least partially to C atoms on arom. rings of said polycyclic compd. through Si-C linkage and 5-900 pts.wt. arom. polycyclic compd. (B) being mainly in a premesophase state are thermally reacted and/or thermally melted at 200 to 500 deg.C. Said organosilicon polymer mainly comprises a bonding unit, Si-CH2, or said bonding unit and another bonding unit, Si-Si, contains H, a lower alkyl, phenyl or silyl group as a side chain attached to Si, and contains at least one metal selected from the group consisting of Ti, Zr, and Hf bonded directly or through an oxygen atom to at least a part of Si atoms in said bonding units of the main polymer chain. Said arom. compd. (B) is obtd. by hydrogenating a petroleum- or coal-derived pitch and thermally treating the resulting product under a reduced pressure.
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公开(公告)号：JPH02311529A
公开(公告)日：1990-12-27
申请号：JP13129689
申请日：1989-05-26
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To improve the mechanical properties and resistance to oxidation, abrasion, and heat by thermally reacting and/or thermally melting a specific random copolymer with an arom. polycyclic compd. CONSTITUTION:100 pts.wt. random copolymer (A) comprising a transition metal-contg. organosilicon polymer and an arom. polycyclic compd. consisting of a thermally treated petroleum- or coal-derived pitch, wherein Si atoms of said organosilicon polymer are bonded at least partially to C atoms on arom. rings of said polycyclic compd. through Si-C linkage, and 50 to 20000 pts.wt. optically isotropic arom. polycyclic compd. (B) contg. a latent anisotropy-forming component are thermally reacted and/or thermally melted at 200 to 500 deg.C. Said organosilicon polymer mainly comprises a bonding unit, Si-CH2, or said bonding unit and another bonding unit, Si-Si, contains H, a lower alkyl, phenyl or silyl group as a side chain attached to Si, and contains at least one metal selected from the group consisting of Ti, Zr, and Hf bonded directly or through an oxygen atom to at least a part of Si atoms in said bonding units in the main polymer chain. Said arom. compd. (B) is obtd. by thermally treating a petroleum- or coal-derived pitch to give a mesophase-contg. pitch, hydrogenating and thermally treating the resulting pitch.
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公开(公告)号：JPH02275780A
公开(公告)日：1990-11-09
申请号：JP23176189
申请日：1989-09-08
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
IPC: C04B35/565 , C04B35/10 , C04B35/56 , C04B35/58 , C04B35/581 , C04B35/584 , C04B35/80
Abstract: PURPOSE:To enable the use of the subject composite material in an oxidizing atmosphere at a high temperature by using a reinforcing material consisting of an inorganic fiber composed of polycyclic aromatic polymer containing a metal such as Ti or Si and using a ceramic composed of a carbide or nitride as a matrix. CONSTITUTION:The subject composite material is produced by using an inorganic fiber as a reinforcing material and a ceramic as a matrix. The inorganic fiber is derived from a polycyclic aromatic polymer containing Si and an element selected from Ti, Zr and Hf. The ceramic is selected from carbide, nitride, oxide and a glass ceramic.
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公开(公告)号：JPH02274732A
公开(公告)日：1990-11-08
申请号：JP9625289
申请日：1989-04-18
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
IPC: C08L83/16 , C08G61/00 , C08G77/48 , C08G77/60 , C08L83/00 , C08L83/02 , D01F6/76 , D01F9/10 , D01F9/14 , D01F9/145
Abstract: PURPOSE:To obtain the subject polymer which can give a high-strength and high-elasticity carbonaceous inorganic fiber by heat-treating a specified organosilicon polymer/polycyclic aromatic compound random copolymer and a premesophase polycyclic aromatic compound. CONSTITUTION:An organosilicon polymer having a ratio of the total number of the combined units Si-CH2 to the total number of the bonding units Si-Si in the range of 1:(0-20) and having a substituent such as H, a lower alkyl, a phenyl or a silyl as a side chain of the silicon atom is prepared. The carbon atoms of the aromatic ring of a polycyclic aromatic compound are bonded to the silicon atoms of this polymer to produce a random copolymer. 100 pts.wt. this random copolymer and 5 to 900 pts.wt. premesophase polycyclic aromatic compound obtained by hydrogenating a petroleum- or coal-derived pitch and heat-treating the product in a vacuum are subjected to heat reaction and/or heat melting at 200 to 500 deg.C to obtain a silicon-containing polycyclic aromatic polymer.
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公开(公告)号：JPH02217358A
公开(公告)日：1990-08-30
申请号：JP3609589
申请日：1989-02-17
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To reduce deterioration of title material under high-temperature oxidizing atmosphere and improve abrasion resistance by blending a specific crystalline carbon (and amorphous carbon) with a crystalline carbon kept in non- oriented state and/or amorphous carbon and Si-C-O substance. CONSTITUTION:The powder of (C) a silicon-containing polycyclic aromatic polymer obtained by heating (A) a random copolymer obtained by combining an organosilicone polymer consisting of Si-CH2 unit or Si-CH2 unit and Si-Si unit and having side chain with a petroleum based or coal based pitch and (B) mesophase polycyclic aromatic polymer is molded and burned at 800-3000 deg.C in vacuum or inert gas and as necessary melt or solution of the component C is repeatedly impregnated and burned to provide the title material consisting of a crystalline carbon (and amorphous carbon) led from a polycyclic aromatic compound kept in meriphase state and constituting the component C and crystalline carbon kept in a nonoriented state and led from optically isotropic polycyclic aromatic compound constituting the component C and/or amorphous carbon and Si-C-O substance consisting of an amorphous material composed of Si, C and O and/or crystalline ultrafine granules composed of beta-SiC and amorphous SiOx (0
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