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    PRECURSOR FIBER BUNDLE FOR PRODUCTION OF ON CARBON FIBER BUNDLE, A PROCESS FOR PRODUCING THEREOF, A CARBON FIBER BUNDLE AND A PROCESS FOR PRODUCING THEREOF
    1.
    发明专利
    PRECURSOR FIBER BUNDLE FOR PRODUCTION OF ON CARBON FIBER BUNDLE, A PROCESS FOR PRODUCING THEREOF, A CARBON FIBER BUNDLE AND A PROCESS FOR PRODUCING THEREOF 未知

    公开(公告)号：HU9701651A2

    公开(公告)日：1999-06-28

    申请号：HU9701651

    申请日：1997-10-14

    Applicant: TORAY INDUSTRIES

    Inventor： ENDO MAKOTO ,  MIYOSHI TOSHIYUKI ,  MORIKAWA HARUKI ,  ONO KEIZO ,  SHINDO MASAKATSU ,  YAMANAKA SHUICHI ,  YAMAZAKI JUN

    IPC: D01F6/18 ,  D01F9/22 ,  C01B31/00

    Abstract: This invention relates to a precursor fiber bundle for production of a carbon fiber bundle, a process for producing the precursor fiber bundle, a carbon fiber bundle produced with the precursor fiber bundle, and a process for producing the carbon fiber bundle. A percursor fiber bundle according to the invention has a fineness being in the range of from 300,000 denier to 1,500,000 denier and has a potential dividability to sub-tows each of which has a fineness being in the range of from 50,000 denier to 250,000 denier. The precursor fiber bundle is obtained by dividing a multifilament made of an acrylic copolymer spun from a spinnerette into a plurality of sub-tows, drawing the sub-tows in this state, and after that converging the sub-tows into one tow with overlapping adjacent sub-tows at a side edge portion thereof. The converging is practiced typically by passing the overlapped sub-tows through a crimping apparatus. A carbon fiber bundle according to the invention is produced by dividing the precursor fiber bundle into the sub-tows and after that treating the sub-tows by passing thereof through stabilizing and carbonizing processes.

    DEODORIZING ACRYLONITRILE SYNTHETIC FIBER AND ITS PRODUCTION
    2.
    发明专利
    DEODORIZING ACRYLONITRILE SYNTHETIC FIBER AND ITS PRODUCTION 失效

    公开(公告)号：JPH06272174A

    公开(公告)日：1994-09-27

    申请号：JP5590593

    申请日：1993-03-16

    Applicant: TORAY INDUSTRIES

    Inventor： TANAKA YOSHIYUKI ,  SHINDO MASAKATSU ,  ADACHI YASUO

    IPC: D01F6/54 ,  D01F11/06 ,  D06M15/27 ,  D06M101/00 ,  D06M101/12 ,  D06M101/16 ,  D06M101/18 ,  D06M101/28

    Abstract: PURPOSE:To obtain the subject fiber used as a deodorizing material having strong deodorizing effect, excellent in washing resistance, being stable in its shape and capacble of recycling. CONSTITUTION:This synthetic fiber comprises >=1 copolymer selected from groups consisting of (A) an acrylic copolymer mainly consisting of A1; by wt. 10-80% >=1 monomer selected from (meth)acylic acid and itaconic acid, A2; 10-80% acrylonitrile and A3; 10-80% compound of the formula (R is H or CH3; R' is Cl, Br, I, OCH3, OC2H3 or SVH3; (m) is 0-10; (1) is >=10), where the carboxylic groupd are partly substituted by one of metal ions selected from Zn , Cd , Ni , Mn , Ag and Fe , (b) an acrylic copolymer mainly consisting of 10-80% A1 and 10-80% A2, where the carboxylic groups are substituted by one of metal ions described in A, and (C) a copolymer mixture consisting of C1; 10-90% copolymer B and C2; 10-90% acrylic copolymer consisting of 60-90% compound of the formula and 10-40% acrylonitrile.

    ACRYLIC FIBER WITH MODIFIED CROSS-SECTION AND ITS PRODUCTION
    4.
    发明专利
    ACRYLIC FIBER WITH MODIFIED CROSS-SECTION AND ITS PRODUCTION 失效

    公开(公告)号：JPH10251915A

    公开(公告)日：1998-09-22

    申请号：JP6531297

    申请日：1997-03-03

    Applicant: TORAY INDUSTRIES

    Inventor： ORINO MASASHI ,  SHINDO MASAKATSU ,  KIKUCHI KENJI

    IPC: D01F6/18 ,  D01D5/253

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject fiber suitable for a napped product, comprising a fiber tip part readily splittable into a small fineness, having a handle of soft touch and a volume feeling, by extruding an acrylic polymer from a spinneret hole of a specific shape into a coagulating bath comprising an organic solvent and water by wet spinning. SOLUTION: An acrylic polymer containing >=80mol% acrylonitrile is extruded from a spinneret hole of a shape, in which trapezoids have 0.02-0.05mm of a bottom side and the ratio of a top side to the bottom side of 1.3-3.0 and are bonded at the bottom sides, into a coagulating bath comprising an organic solvent such as dimethylformamide and water by wet spinning to give an acrylic modified cross section yarn having a cross-sectional shape such as Y-shape in which each end of plural flat structural branches is bonded at a bond angle of

    DEODORIZING SYNTHETIC YARN AND ITS PRODUCTION
    5.
    发明专利
    DEODORIZING SYNTHETIC YARN AND ITS PRODUCTION 失效

    公开(公告)号：JPH111873A

    公开(公告)日：1999-01-06

    申请号：JP3472298

    申请日：1998-02-17

    Applicant: TORAY INDUSTRIES

    Inventor： KIKUCHI KENJI ,  ORINO MASASHI ,  SHINDO MASAKATSU

    IPC: D06M15/263 ,  D01F6/18 ,  D06M101/00 ,  D06M101/12 ,  D06M101/16 ,  D06M101/18 ,  D06M101/28

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject synthetic yarn for absorbing NH3 , CH3 SH, H2 S, C(CH3 )3 , etc., by providing an acrylonitrile-based synthetic yarn with a specific copolymer resin, drying and densifying the yarn. SOLUTION: Itaconic acid or citraconic acid in an amount of 30-70 wt.% is copolymerized with an ester compound of (meth)acrylic acid and a polyalkylene oxide containing an alkyl etherified terminal hydroxyl group and an ester compound of (meth)acrylic acid and a polyalkylene oxide containing a terminal hydroxyl group. The hydrogen of the carboxyl group of the itaconic acid or citraconic acid is substituted with copper or zinc to form a copolymer resin. A polymer obtained by copolymerizing >=90 mol.% acrylonitrile with

    ACRYLIC FIBER AND PRODUCTION THEREOF
    6.
    发明专利
    ACRYLIC FIBER AND PRODUCTION THEREOF 失效

    公开(公告)号：JPH083812A

    公开(公告)日：1996-01-09

    申请号：JP15174694

    申请日：1994-06-10

    Applicant: TORAY INDUSTRIES

    Inventor： TANAKA YOSHIYUKI ,  SHINDO MASAKATSU ,  NANBAE KIYOYUKI

    IPC: D01F6/18 ,  D01F6/38 ,  D02G1/00 ,  D02J1/22

    Abstract: PURPOSE:To provide acrylonitrile fiber which has a quality enough to be used in cement reinforcement and paper making and can smoothly pass through the manufacturing process. CONSTITUTION:This acrylonitrile fiber comprises a copolymer from less than 10 mole % of a vinyl monomer and more than 90 mole % of acrylonitrile and has 0.1-5 crimps/inch, 0.5-20 denier filament thickness, 3-30mm fiber length and higher than 3g/d strength. In the production, the spinning dope is extruded into fibers, the fibers are drawn, washed with water, crimped with a crimping machine in 5-15 crimps/inch, drawn at 2-3 draw ratio in a hot atmosphere at 60-180 deg.C and cut into staple fibers of 3-30mm length.

    PRECURSOR FIBER BUNDLE FOR CARBON FIBER AND ITS PRODUCTION AND PRODUCTION OF CARBON FIBER
    9.
    发明专利
    PRECURSOR FIBER BUNDLE FOR CARBON FIBER AND ITS PRODUCTION AND PRODUCTION OF CARBON FIBER 失效

    公开(公告)号：JPH10121325A

    公开(公告)日：1998-05-12

    申请号：JP28906296

    申请日：1996-10-14

    Applicant: TORAY INDUSTRIES

    Inventor： YAMANAKA SHUICHI ,  SHINDO MASAKATSU ,  MORIKAWA HARUKI

    IPC: D01F6/18 ,  D01F9/22

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject fiber bundle enabling to produce desired carbon yarns having a high strength and a high elastic modulus in good productivity by maintaining the form of one two, when received in a container, and subsequently dividing the tow into plural small tows, when drawn out from the container. SOLUTION: Plural fibers are produced in a spinning process 1, and subsequently drawn and washed in a fiber-producing process 3 in a state divided into plural groups 2 each having the prescribed number of the fibers. The plural groups 8 are treated in a fishing oil-imparting process 4 and in a twisting process 5 and subsequently bundled into a tow. When the plural groups 8 are collected, the salvage parts (side end parts) of the groups 8 are weakly interlaced with each other. After treated in a drying process 6, the carbon fiber precursor bundle 10 in the form of one two is packed in a packing process 7. Thus, the packed fiber bundle 11 potentially having an ability to be divided into plural small tows in the lateral direction is obtained.

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