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    FILM FOR MANUFACTURE OF PREPREG, PREPREG AND MANUFACTURE OF FILM AND PREPREG
    51.
    发明专利
    FILM FOR MANUFACTURE OF PREPREG, PREPREG AND MANUFACTURE OF FILM AND PREPREG 失效

    公开(公告)号：JPH11254435A

    公开(公告)日：1999-09-21

    申请号：JP5703298

    申请日：1998-03-09

    Applicant: TORAY INDUSTRIES

    Inventor： YAMANE SHOJI ,  YOSHIZAWA MASANORI ,  KIKUCHI HITOSHI

    IPC: B29B11/16 ,  C08J5/24

    Abstract: PROBLEM TO BE SOLVED: To manufacture a wide and extremely thin resin film for a low resin weight per unit area prepreg for manufacturing a molded body of good quality and quality level generating a small amount of resin loss and provide its manufacturing method and also manufacture a low resin weight per unit area prepreg of good quality level using the film. SOLUTION: Resin of 50 cm width or more is applied on a release sheet in the setting of the 20 g/m average weight per unit area or less and at 100% weight per unit area unevenness or less and the volatile content is 4 wt.% or less for the manufacture of a resin film for manufacturing a prepreg, and a prepreg using the film and the manufacturing methods for the film and the prepreg are also provided.

    BURNING METHOD OF CARBON FIBERS AND BURNING METHOD OF CARBON FIBER REINFORCED RESIN MIXTURE
    53.
    发明专利
    BURNING METHOD OF CARBON FIBERS AND BURNING METHOD OF CARBON FIBER REINFORCED RESIN MIXTURE 失效

    公开(公告)号：JPH06117614A

    公开(公告)日：1994-04-28

    申请号：JP26362192

    申请日：1992-10-01

    Applicant: TORAY INDUSTRIES

    Inventor： YAMANE SHOJI ,  KUBOTA YOSHINOBU

    IPC: F23G5/02 ,  F23G7/00

    Abstract: PURPOSE:To effectually and economically burn carbon fibers, mixtures of carbon fibers and matrix resin, and cured products of the mixtures by adding a compound containing one kind or more of metals selected from a group containing alkali metals, alkali rare earth metals, and transition metals by a specific amount to carbon fibers. CONSTITUTION:A compound containing one kind or more of metals selected from a group comprising alkali metals, alkali earth metals, and transition metals is added to carbon fibers by 100ppm or more calculated in terms of the metal element. For adding metal or a metal compound to an article to be burned, a compound of the metal with a hydroxyl group and various metal salts such as acetic acid salts is sprayed as an aqueous solution or in the state of a water dispersion. In order to minimize any danger of a burning furnace, a weak alkali metal compound is preferably used thereamong. Hereby, carbon fibers or a carbon fiber reinforced resin mixture are economically and effectually burned in a short time.

    AROMATIC SULFIDE FIBER
    54.
    发明专利
    AROMATIC SULFIDE FIBER 失效

    公开(公告)号：JPH02191711A

    公开(公告)日：1990-07-27

    申请号：JP32694289

    申请日：1989-12-15

    Applicant: TORAY INDUSTRIES

    Inventor： YAMANE SHOJI ,  ENDO CHUICHI ,  SHIOKAWA MICHIHIRO

    IPC: D01F6/76

    Abstract: PURPOSE:To obtain the title novel fiber good in mechanical properties, extremely high in chemical resistance, also high in heat resistance and low in shrinkage by specifying tenacity, Young's modulus and strength retention rate after sulfuric acid immersion. CONSTITUTION:The objective fiber >=4.6g/de in tenacity. >=60g/de in Young's modulus and >=60% in strength retention rate after immersion in 98% sulfuric acid at room temperature. It is preferable that this fiber be obtained by the following process: undrawn yarn prepared by melt spinning of an aromatic sulfide polymer is drawn by a factor of at least its natural draw ratio under heating to 80-120 deg.C, and the resultant semi-drawn yarn is further drawn at 150-260 deg.C so that the total draw ratio fall between 1 and 1.5 times the draw ratio at the first stage.

    ACRYLIC FIBER FOR PRODUCING CARBON FIBER
    57.
    发明专利
    ACRYLIC FIBER FOR PRODUCING CARBON FIBER 失效

    公开(公告)号：JPS6335821A

    公开(公告)日：1988-02-16

    申请号：JP18113886

    申请日：1986-07-31

    Applicant: TORAY INDUSTRIES

    Inventor： SARUYAMA HIDEO ,  YAMAZAKI KATSUMI ,  YAMANE SHOJI

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

    Abstract: PURPOSE:The titled fibers, composed of an acrylonitrile based polymer, having a lightness difference (DELTAL) (by an iodine adsorption method) within a specific range and extremely high denseness of the surface layer part and capable of providing carbon fibers having a high strength and elasticity. CONSTITUTION:Fibers composed of an acrylonitrile based polymer containing =20% polymer concentration at =60 deg.C higher than that of the coagulating bath to afford a drawn filament yarn, preferably having

    PRODUCTION OF ACRYLIC FIBER FOR PRODUCING CARBON FIBER
    58.
    发明专利
    PRODUCTION OF ACRYLIC FIBER FOR PRODUCING CARBON FIBER 失效

    公开(公告)号：JPS6321916A

    公开(公告)日：1988-01-29

    申请号：JP16017586

    申请日：1986-07-08

    Applicant: TORAY INDUSTRIES

    Inventor： SARUYAMA HIDEO ,  YAMAZAKI KATSUMI ,  YAMANE SHOJI

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

    Abstract: PURPOSE:To obtain the titled fiber for precursor giving a carbon fiber having high density and strength, by subjecting a spinning dope of an acrylonitrile polymer to dry-wet spinning to obtain a coagulated fiber having a specific swelling degree and subsequently drawing the fiber in a bath. CONSTITUTION:A coagulated fiber having a swelling degree of =92wt% acrylonitrile and a solvent of said polymer and having a polymer concentration of >=18wt%. The spinning is carried out under a condition satisfying the swelling degree ratio (Br/Bc) of

    DRY JET-WET SPINNING
    59.
    发明专利
    DRY JET-WET SPINNING 失效

    公开(公告)号：JPS62141111A

    公开(公告)日：1987-06-24

    申请号：JP27929085

    申请日：1985-12-13

    Applicant: TORAY INDUSTRIES

    Inventor： FUKUHARA MOTOTADA ,  YAMANE SHOJI

    IPC: D01D5/06 ,  D01F6/18 ,  D01F6/38 ,  D01F9/22

    Abstract: PURPOSE:To reduce frictional resistance and obtain yarns drawable at a high ratio with little fluff, surface flaw, uneven fineness, etc., by giving ultrasonic vibration to a guide for deflecting yarn running direction in a coagulation bath in dry jet-wet spinning of a polymer. CONSTITUTION:A polymer solution is extruded, run in a gas once and then led to a coagulation bath in a dry jet-wet spinning process. In the process, ultrasonic vibration at 20-40kHz frequency is normally given to a guide for deflecting yarn running direction normally provided just under a spinneret in the coagulation bath, preferably 2.5-15mm curvature radium to afford the aimed yarns. This process is useful in the dry jet-wet spinning process for an acrylonitrile based polymer, containing >=90% acrylonitrile and used for carbonizing raw material fibers requiring particularly high-degree of uniformity.

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