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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：JPH02259163A
公开(公告)日：1990-10-19
申请号：JP7808989
申请日：1989-03-31
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , ISHIKAWA TOSHIHIRO , SHIBUYA MASAKI
IPC: C08J5/06 , C04B35/80 , D01F9/10 , D06M13/02 , D06M13/50 , D06M13/51 , D06M13/513 , D06M15/17 , D06M15/41 , D06M101/00
Abstract: PURPOSE:To provide the subject fiber having improved adhesivity to matrixes and capable of giving composite materials having excellent mechanical strengths by treating a central layer comprising a specific inorganic fiber containing silicon, carbon and oxygen atoms with a specified surface-treating agent to form a surface layer. CONSTITUTION:The surface of a central layer comprising an inorganic fiber which comprises (A) an amorphous substance comprising Si, C and O atoms, (B) an aggregate comprising amorphous SiO2 and crystalline ultrafine particles having a article size of
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Patent Agency Ranking
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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公开(公告)号：JPH02127433A
公开(公告)日：1990-05-16
申请号：JP28032588
申请日：1988-11-08
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , KUGIMOTO JUNICHI , ISHIKAWA TOSHIHIRO , SHIOJI YASUHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To obtain the title polymer having excellent mechanical properties and improved oxidation resistance and wetting properties with plastic by subjecting a specific random copolymer to heat reaction and heat melting with a polycyclic aromatic compound within a specific temperature range. CONSTITUTION:(A) A random copolymer bonded through Si-C couple group to carbon of aromatic ring of a polycyclic aromatic compound-containing petroleum based or coal based pitch or heat treated product thereof as at least part of Si of transition metalcontaining organosilicon polymer consisting essentially of Si-CH2 bond unit or the above-mentioned Si-CH2 unit and Si-Si bond unit, having H, lower alkyl group, etc., at side chain of Si and having a atom such as Ti, Zr, etc., bonded directly or through O atom to at least part of Si of main skeleton consisting of the above-mentioned bond unit is subjected to heat reaction and heat melting with (B) a polycyclic aromatic compound consisting of both phase with optically isotropic phase at 200-500 deg.C.
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公开(公告)号：JPH01242738A
公开(公告)日：1989-09-27
申请号：JP6959188
申请日：1988-03-25
Applicant: UBE INDUSTRIES
Inventor： NAGASAWA TOSHIO , YAMAMURA TAKETAMI , ISHIKAWA TOSHIHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To prevent the leaning of fibrous bundles in a matrix and to improve the mechanical characteristics of a composite material by regulating either the warp or the woof to inorganic reinforcing fiber and providing the other with the compsn. same as that of the metal as the matrix. CONSTITUTION:In the reinforcing fibrous textile, either the warp or the woof is the bundles of inorganic reinforcing fiber and the other is the metallic wire having the compsn. same as that of the metal as the matrix. As the inorganic reinforcing fiber, the fiber composed of ceramics such as carbide, nitride, boride and oxide or of carbon can be used. The reinforcing fibrous textile is compounded with the matrix metal having the compsn. same as that of the metallic wire into the fiber reinforcing metallic composite material. In the obtd. composite material, the metallic wire is integrated into the matrix metal, by which there occurs a state where the inorganic reinforcing fiber is drawn and arranged toward one direction. In this way, since there is no winding caused by the crossing of each fiber bundle, the composite material having high bending strength, tensile strength, etc., can be obtd.
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公开(公告)号：JPH01208372A
公开(公告)日：1989-08-22
申请号：JP2983588
申请日：1988-02-10
Applicant: SHINAGAWA REFRACTORIES CO , UBE INDUSTRIES
Inventor： ICHIKAWA KENJI , TSUKAMOTO NOBORU , IIDA EIJI , YAMAMURA TAKEOMI , ISHIKAWA TOSHIHIRO , SHIBUYA MASAKI
IPC: C04B35/80
Abstract: PURPOSE:To improve fracture toughness, compressive strength, etc., by kneading specific reinforcing surface-treated inorganic fibers with ceramic powder and calcining the resultant mixture. CONSTITUTION:Inorganic fibers consisting of (a) an amorphous substance consisting of Si, MC (M is Ti or Zr) and O, (b) beta-SiC, MC, a solid solution of the beta-SiC with MC and/or respective crystalline fine particles of MC1-x (x is 0-1) and an aggregate of amorphous SiO2 and MO2 or a mixed system of the components (a) with (b) are coated with a solution of at least component selected from polytitanocarbosilanes or polyzirconocarbosilanes, silane coupling agents, phenolic resins having 500-20000 average molecular weight and petroleum pitch in an organic solvent and dried to afford reinforcing surface-treated inorganic fibers (A) having a surface layer of 0.1-50mum thickness. The resultant component (A) is then kneaded with ceramic powder or an organic substance capable of providing ceramic by heating to be a matrix (B) and the obtained mixture is press formed under 50-5000kg/cm pressure and calcined at 600-2400 deg.C.
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公开(公告)号：JPS6464398A
公开(公告)日：1989-03-10
申请号：JP22023487
申请日：1987-09-04
Applicant: UBE INDUSTRIES
Inventor： YAMAMURA TAKETAMI , ISHIKAWA TOSHIHIRO , SHIBUYA MASAKI
Abstract: PURPOSE:To enhance strength by constituting an electromagnetic-waves transmitting material which is constituted of an amorphous inorganic fiber composed of silicon, carbon, oxygen and titanium or zirconium in specific ranges of percentage by weight, which has a specific resistivity value and which can transmit a specific range of microwaves selectively and by constituting a composite substance reinforced with the material. CONSTITUTION:An electromagnetic-waves transmitting material is constituted of an inorganic fiber composed substantially of Si, C, Ti or Zr, and O, and it has a resistivity of 15 -10 OMEGA.cm. The inorganic fiber contains 26-58wt.% Si, 25-62wt.% C, 0.5-30wt.% Ti or Zr, and 2-31wt.% O. The amorphous inorganic fiber constituting the electromagnetic-waves transmitting material transmits microwaves in a range of 500MHz-3000GHz selectively and its matrix is strengthened. If necessary, the electromagnetic-waves transmitting material can be used as a composite substance which uses a plastic or a ceramic as a matrix.
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