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    1.
    发明专利
    未知

    公开(公告)号：DE3878606D1

    公开(公告)日：1993-04-01

    申请号：DE3878606

    申请日：1988-08-01

    Applicant: TORAY INDUSTRIES

    Inventor： AKIMOTO TATSUO ,  OGASAWARA MASAFUMI ,  SUMIDA ATSUSHI

    IPC: D01F9/22 ,  D06M11/34

    Abstract: In a method for producing oxidized filaments (102) by treating precursor filaments (101) in a bed (5a) fluidized by an oxidizing gas and heat treating the precursor filaments (101) in the fluidized bed (5a), the fluidized bed (5a) is formed with heat-medium particles (5), not less than 80% by weight of which are of solid particles each having a particle diameter of not greater than 10 mesh, and the oxidation is carried out under optimum conditions within an optimum range of the treatment temperatures, an optimum range of depths H of the fluidized bed (5a) and an optimum gas speed of the oxidizing gas. By the method, the period of time required for the oxidation can be greatly shortened and oxidized filaments (102) having excellent characteristics can be obtained Furthermore, where the oxidized filaments thus obtained are carbonized, carbon fibers having excellent mechanical properties can be produced.

    CONTINUOUS CARBON FILAMENT FIBER BUNDLES
    3.
    发明专利
    CONTINUOUS CARBON FILAMENT FIBER BUNDLES 未知

    公开(公告)号：DE3274125D1

    公开(公告)日：1986-12-11

    申请号：DE3274125

    申请日：1982-07-09

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHINAGA MINORU ,  SUMIDA ATSUSHI

    IPC: D06M15/568 ,  D01F9/14 ,  D01F11/14 ,  D06M15/564 ,  D06M101/00 ,  D06M101/40 ,  D01F11/10

    Abstract: A bundle of continuous carbon filament fibers is treated with a sizing agent containing as an active component a water-dispersible resin composition consisting of about 65% to 95% by weight of a water-dispersible urethane compound having at least one epoxy group and at least one quaternary ammonium group and about 5% to 35% by weight of an epoxy resin. The bundle has an excellent fretting resistance, is extremely handleable, and produces a carbon fiber-reinforced composite material having excellent physical properties.

    4.
    发明专利
    未知

    公开(公告)号：DE3878606T2

    公开(公告)日：1993-08-12

    申请号：DE3878606

    申请日：1988-08-01

    Applicant: TORAY INDUSTRIES

    Inventor： AKIMOTO TATSUO ,  OGASAWARA MASAFUMI ,  SUMIDA ATSUSHI

    IPC: D01F9/22 ,  D06M11/34

    Abstract: In a method for producing oxidized filaments (102) by treating precursor filaments (101) in a bed (5a) fluidized by an oxidizing gas and heat treating the precursor filaments (101) in the fluidized bed (5a), the fluidized bed (5a) is formed with heat-medium particles (5), not less than 80% by weight of which are of solid particles each having a particle diameter of not greater than 10 mesh, and the oxidation is carried out under optimum conditions within an optimum range of the treatment temperatures, an optimum range of depths H of the fluidized bed (5a) and an optimum gas speed of the oxidizing gas. By the method, the period of time required for the oxidation can be greatly shortened and oxidized filaments (102) having excellent characteristics can be obtained Furthermore, where the oxidized filaments thus obtained are carbonized, carbon fibers having excellent mechanical properties can be produced.

    PROCESS FOR PRODUCING CARBON FIBER
    6.
    发明专利
    PROCESS FOR PRODUCING CARBON FIBER 未知

    公开(公告)号：DE3374323D1

    公开(公告)日：1987-12-10

    申请号：DE3374323

    申请日：1983-12-15

    Applicant: TORAY INDUSTRIES

    Inventor： TORIGATA HAJIME ,  SUMIDA ATSUSHI ,  MATSUBARA NOBUYUKI

    IPC: B01D53/94 ,  D01F9/14 ,  D01F9/22 ,  D01F9/32 ,  F27D17/00

    Abstract: A process for producing carbon fiber is disclosed, which comprises a preoxidation step for heating in an oxidizing atmosphere and converting precursor fibers into partially oxidized fibers, an oxidizing step for heating in an oxidizing atmosphere and converting the partially oxidized precursor fibers into oxidized fibers, and a carbonization step for heating in an inert atmosphere and converting the oxidized fibers into carbonized fibers, in which in the preoxidation step the precursor fibers are heated at a temperature of about 200 to 250°C and in which a portion or the whole of exhaust gas from the oxidation step is supplied into the preoxidation step as oxidation atmosphere gas and the exhaust gas from the preoxidation step is subjected to a burning treatment.

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