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    2.
    发明专利
    未知

    公开(公告)号：DE69726384D1

    公开(公告)日：2004-01-08

    申请号：DE69726384

    申请日：1997-05-15

    Applicant: TORAY INDUSTRIES

    Inventor： KITANO AKIHIKO ,  KOBAYASHI MASANOBU ,  ITO MOTOI

    IPC: B63B15/02 ,  B29C70/06 ,  B29C70/16 ,  B29K105/06 ,  B32B1/08 ,  B32B5/02 ,  B32B5/28 ,  B32B17/04 ,  B32B27/04 ,  B63B5/24 ,  B63B15/00 ,  E04C3/28 ,  E04C3/36 ,  B32B5/12

    Abstract: A large-sized columnar body which is formed out of a fiber-reinforced plastic comprising continuous fibers and a resin, and which has three layers (A, B, C) laid in the mentioned order, characterized in that the reinforcing fiber in the B layer is carbon fiber arranged in the lengthwise direction of the columnar body, the fiber in the A layer and C layer being carbon fiber or/and glass fiber arranged at +/-50 to +/-70 degrees with respect to the lengthwise direction of the columnar body. This large-sized columnar body of FRP has a high compressive strength, so that the weight thereof can reduced to below that of a conventional large-sized columnar body. Accordingly, this columnar body is suitable as a primary structural material used as a building material, and for structures, aircrafts and ships.

    3.
    发明专利
    未知

    公开(公告)号：AT255000T

    公开(公告)日：2003-12-15

    申请号：AT97922054

    申请日：1997-05-15

    Applicant: TORAY INDUSTRIES

    Inventor： KITANO AKIHIKO ,  KOBAYASHI MASANOBU ,  ITO MOTOI

    IPC: B63B15/02 ,  B29C70/06 ,  B29C70/16 ,  B29K105/06 ,  B32B1/08 ,  B32B5/02 ,  B32B5/28 ,  B32B17/04 ,  B32B27/04 ,  B63B5/24 ,  B63B15/00 ,  E04C3/28 ,  E04C3/36 ,  B32B5/12

    Abstract: A large-sized columnar body which is formed out of a fiber-reinforced plastic comprising continuous fibers and a resin, and which has three layers (A, B, C) laid in the mentioned order, characterized in that the reinforcing fiber in the B layer is carbon fiber arranged in the lengthwise direction of the columnar body, the fiber in the A layer and C layer being carbon fiber or/and glass fiber arranged at +/-50 to +/-70 degrees with respect to the lengthwise direction of the columnar body. This large-sized columnar body of FRP has a high compressive strength, so that the weight thereof can reduced to below that of a conventional large-sized columnar body. Accordingly, this columnar body is suitable as a primary structural material used as a building material, and for structures, aircrafts and ships.

    CARBON FIBER TOW AND ITS PRODUCTION
    7.
    发明专利
    CARBON FIBER TOW AND ITS PRODUCTION 失效

    公开(公告)号：JPH10266066A

    公开(公告)日：1998-10-06

    申请号：JP7605397

    申请日：1997-03-27

    Applicant: TORAY INDUSTRIES

    Inventor： KOBAYASHI MASANOBU ,  ITO MOTOI ,  KITANO AKIHIKO

    IPC: D06M10/00 ,  D01F9/22 ,  D06M10/04 ,  D06M101/00 ,  D06M101/40

    Abstract: PROBLEM TO BE SOLVED: To obtain a carbon fiber tow relatively uniform in adhesivity to matrix resin, thus capable of stabilizing the mechanical properties of the composite materials made by use thereof by subjecting a carbon fiber tow to such surface treatment as to periodically repeat anodization and cathodic reduction via an electrolyte solution. SOLUTION: A carbon fiber tow >=10,000 filaments of single fiber produced by baking acrylic fiber as precursor fiber is introduced into an electrolytic surface treatment unit where the tow is subjected to surface treatment in an electrolyte solution such as aqueous sulfuric acid solution by periodically repeating anodization and cathodic reduction through supplying electricity so that the reduction ratio defined by the relationship: reduction ratio = quantity of electricity for reduction/(quantity of electricity for oxidation + quantity of electricity for reduction) fall within the range 0.001 to 0.5, thus obtaining the objective carbon fiber tow 0.02-0.2 in the surface oxygen concentration: O/C determined by the X-Ray photoelectron spectroscopy and

    HEAT-RESISTANT COMPOSITE MATERIAL
    8.
    发明专利
    HEAT-RESISTANT COMPOSITE MATERIAL 失效

    公开(公告)号：JPH0762111A

    公开(公告)日：1995-03-07

    申请号：JP20796093

    申请日：1993-08-23

    Applicant: TORAY INDUSTRIES

    Inventor： ITO MOTOI ,  ENOU MASAZUMI ,  KUBOTA YOSHINOBU

    IPC: C08J5/06 ,  B29B15/08

    Abstract: PURPOSE:To provide the title material in which the adhesiveness of constituent carbon fibers to a constituent heat-resistant resin is improved and which has excellent composite properties. CONSTITUTION:The material comprises a carbon fiber having a tensile modulus of 30000 to below 50000kgf/mm and a ratio of the peak height of a Ramman band of 1580-1600cm in a Ramman spectrum to a Ramman band of 1350-1360cm of 0.90-1.10, a carbon fiber having a tensile modulus of 50000 to below 70000kgf/mm and the above-mentioned ratio of 0.65-0.95 or a carbon fiber having a tensile modulus of 70000 to below 96000kgf/mm and the above ratio of 0.45-0.70 and a resin which has a heat decomposition initiation temperature of 250 deg.C or above after being cured.

    PRODUCTION OF CARBON FIBER
    9.
    发明专利
    PRODUCTION OF CARBON FIBER 失效

    公开(公告)号：JPH0770925A

    公开(公告)日：1995-03-14

    申请号：JP20795993

    申请日：1993-08-23

    Applicant: TORAY INDUSTRIES

    Inventor： ITO MOTOI ,  KOBAYASHI MASANOBU ,  SHIMIZU KAZUHARU

    IPC: D01F9/12 ,  D01F9/22 ,  D01F11/14 ,  D06M13/02 ,  D06M13/11 ,  D06M13/165 ,  D06M101/00 ,  D06M101/40

    Abstract: PURPOSE:To obtain carbon fibers excellent in adhesiveness to matrix resin by sizing a polycyclic aromatic compound having plural glycidyl ether groups. CONSTITUTION:Preferably, acrylic carbon fibers is subjected to electrolytic oxidation in advance to conduct fiber surface treatment, and then immersed in a liquid containing a sizing agent consisting of a polycyclic aromatic compound having plural glycidyl ether groups, esp. 1,6-naphthalenediglycidyl ether, to impart the carbon fibers with the sizing agent, thus obtaining the objective carbon fibers substantially improved in the adhesiveness to matrix resins (e.g. thermosetting resin such as epoxy resin).

    CARBON FIBER AND PREPREG
    10.
    发明专利
    CARBON FIBER AND PREPREG 失效

    公开(公告)号：JPH09302585A

    公开(公告)日：1997-11-25

    申请号：JP11776196

    申请日：1996-05-13

    Applicant: TORAY INDUSTRIES

    Inventor： KOBAYASHI MASANOBU ,  ITO MOTOI ,  KITANO AKIHIKO

    IPC: C08J5/24 ,  B32B5/14 ,  C08J5/06 ,  D06M15/59 ,  D06M101/00 ,  D06M101/40

    Abstract: PROBLEM TO BE SOLVED: To obtain a carbon fiber that is obtained by compounding a sizing agent composed of a polyamide carboxylic compound having an alkyl group at both terminals with carbon fiber, has excellent capability of bundling, high- order workability and openability, and is useful for prepreg, etc. SOLUTION: This carbon fiber comprises carbon fiber compounded with a sizing agent that has an alkyl group such as stearyl or an aryl group such as phenyl group, and is composed of a polyamidecarboxylic compound such as a polymer of (A) one or more aromatic dianhydrides selected from a group consisting of biphenyltetracarboxylic dianhydrides, pyromellitic dianhydrides, oxydiphthalic dianhydrides and benzophenonedicarboxylic anhydrides, and (B) one or more aromatic diamine compounds selected from a group consisting of p- and mphenylenediamines, 4, 4'-oxydianiline, 3, 4'-oxydianiline, and 1, 3-bis (3-aminophenoxy) benzene. Furthermore, it is preferable to produce a prepreg composed of this carbon fiber and a resin such as a thermally resistant resin.

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