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    ROPE COMPRISING CARBON FIBER-REINFORCED COMPOSITE MATERIAL AND PRODUCTION THEREOF
    36.
    发明专利
    ROPE COMPRISING CARBON FIBER-REINFORCED COMPOSITE MATERIAL AND PRODUCTION THEREOF 失效

    公开(公告)号：JPH0533278A

    公开(公告)日：1993-02-09

    申请号：JP17946091

    申请日：1991-07-19

    Applicant: TORAY INDUSTRIES

    Inventor： TSUNODA ATSUSHI ,  NISHIMURA AKIRA ,  MURAKI TOSHIO

    IPC: D01F9/12 ,  D07B5/06

    Abstract: PURPOSE:To produce the subject rope useful for building materials, construction materials and having light weight, excellent shape retainability and good workability by twisting plural carbon fiber-reinforced composite materials impregnated with a thermoplastic resin so as to specify the content of the fibers. CONSTITUTION:Plural carbon fiber-reinforced composite materials each having a diameter of 1-5mm and produced by impregnating a carbon fiber bundle with a thermoplastic resin (preferably nylon) so as to give a fiber content of 40-70wt.% are twisted and subsequently subjected to a thermal treatment [at a temperature of the melting point -(5 to 20 deg.C)] to provide the objective rope.

    ACRYLIC FIBER FOR GRAPHITE FIBERS
    37.
    发明专利
    ACRYLIC FIBER FOR GRAPHITE FIBERS 失效

    公开(公告)号：JPH02264011A

    公开(公告)日：1990-10-26

    申请号：JP8518389

    申请日：1989-04-03

    Applicant: TORAY INDUSTRIES ,  TORAY RES CENTER KK

    Inventor： ONO KEIZO ,  TSUNODA ATSUSHI ,  SUSUKI TOSAKU

    IPC: C08F220/04 ,  C08F30/04 ,  C08F220/42 ,  C08F220/44 ,  C08F230/06 ,  D01F6/18 ,  D01F6/38 ,  D01F9/22

    Abstract: PURPOSE:To obtain the title fibers giving graphite fibers of super-high elastic modulus by using a polymer containing acrylonitrile, a composition for accelerating pre-oxidation and boron containing vinyl compound at specified ratio. CONSTITUTION:The subject fibers are composed of (A) more than 85wt.%, preferably more than 90wt.% of acrylonitrile, (B) 0.1 to 4wt.%, preferably 0.3 to 1wt.% of a component for accelerating predeoxidation, for example, a vinyl monomer such as (meth)acrylic acid or itaconic acid, and (C) 0.05 to 3wt.%, preferably 0.3 to 1wt.% (based on boron) of a boron containing vinyl compound such as vinyl di-n-butoxyborane, isopropenyl di-n-butoxyborane).

    PRODUCTION OF CARBON FIBER
    38.
    发明专利
    PRODUCTION OF CARBON FIBER 失效

    公开(公告)号：JPH02242921A

    公开(公告)日：1990-09-27

    申请号：JP6454289

    申请日：1989-03-15

    Applicant: TORAY INDUSTRIES

    Inventor： KOBAYASHI MAKOTO ,  OHARA HARUO ,  TSUNODA ATSUSHI

    IPC: D01F6/18 ,  D01F6/38 ,  D01F9/22 ,  D01F9/32

    Abstract: PURPOSE:To efficiently obtain a high quality and high performance carbon fiber in a short time by heat treatment of a precursor for carbon fiber production composed of a specific acryl-based copolymer in a fluid bed for disperse means. CONSTITUTION:A precursor for carbon fiber production composed of a copolymer of >=85% acrylonitrile and 1 to 10%, preferably 3 to 8% alkyl ester [preferably propyl ester of (meth)acrylic acid, etc.] of polymerizable unsaturated carboxylic acid is subjected to heat treatment in a fluid bed (preferably being means for subjecting solid heat mediated granules to heat treatment in a fluidized state with a gas and wherein fluidized state of the solid heat mediated granules with an oxidizing gas and heated state at >=240 deg.C coexist in the fluid bed) to provide the objective fiber.

    PRODUCTION OF IMPROVED GRAPHITE FIBER
    39.
    发明专利
    PRODUCTION OF IMPROVED GRAPHITE FIBER 失效

    公开(公告)号：JPH0247309A

    公开(公告)日：1990-02-16

    申请号：JP19424188

    申请日：1988-08-03

    Applicant: TORAY INDUSTRIES

    Inventor： ONO KEIZO ,  MIZUGUCHI TOYOKAZU ,  TSUNODA ATSUSHI

    IPC: D01F9/14 ,  D01F9/22

    Abstract: PURPOSE:To prevent the formation of the crystals of metal carbide and nitride, etc., and elongate the life of an oven tube in a graphitization oven by charging an inert gas and carbon tetrachloride in the graphitization oven and graphitizing a carbon fiber at a high temperature in the oven. CONSTITUTION:An inert gas (e.g., nitrogen gas) and carbon tetrachloride are charged in a graphitization oven and a carbon fiber is subjected to a graphitization treatment at the highest heat treatment temperature of >=2000 deg.C to provide the objective fiber. The amount of the charged carbon tetrachloride is preferably 0.13-14.0g per kg of the carbon fiber. The concentration of the carbon tetrachloride in the mixed gases is preferably

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