中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

60 records (took 0.029 seconds)

    PRODUCTION OF PREPREG MATERIAL
    24.
    发明专利
    PRODUCTION OF PREPREG MATERIAL 失效

    公开(公告)号：JPH11309716A

    公开(公告)日：1999-11-09

    申请号：JP4597499

    申请日：1999-02-24

    Applicant: TORAY INDUSTRIES

    Inventor： WADA KENJI ,  YAMASHITA MASAKI ,  YAMANE SHOJI

    IPC: B29B11/16 ,  B29K105/08 ,  B29K307/04 ,  C08J5/24

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a prepreg material in which the generation of lifting on the surface of the prepreg and dimensional change even after being allowed to stand after cutting are controlled and which is free from lifting and other are prevented when wound onto a core body and has good molding work efficiency. SOLUTION: The releasing surface of release paper of 2-6 wt.% water content is coated with a thermosetting resin, and a resin film is produced. The bundle of arranged reinforcing fibers is held between the resin films or between the resin film and the release paper, heated and pressed with the holding state kept, impregnated with a resin, and wound up continuously to produce a prepreg material. Tension of 10-200 g/1000 filaments on average is applied to the bundle. In the holding state, the drawing tension of the r paper is 3-25 kg/m, and the drawing tension of the paper is 10-50 kg/m.

    YARN PREPREG AND ITS PREPARATION
    25.
    发明专利
    YARN PREPREG AND ITS PREPARATION 失效

    公开(公告)号：JPH11130882A

    公开(公告)日：1999-05-18

    申请号：JP29524797

    申请日：1997-10-28

    Applicant: TORAY INDUSTRIES

    Inventor： YAMANE SHOJI ,  OZAKI ATSUSHI ,  ISHIDA TAKAHISA

    IPC: B29B11/16 ,  B29K105/06 ,  B32B5/00 ,  B32B5/08 ,  C08J5/24

    Abstract: PROBLEM TO BE SOLVED: To obtain a yarn prepreg excellent in after-processability and providing a molding product after hardening having a high appearance quality, tensile strength and compression strength after impact by using the yarn prepreg having a proper ratio of a width to a thickness, high accuracy in width, and non-cut fiber at an edge part, and further to provide a method for producing the yarn prepreg. SOLUTION: This yarn prepreg comprising a reinforcing fiber bundle and a matrix resin and having 1-50 mm average width of the prepreg has

    REINFORCING FIBER WOVEN FABRIC
    27.
    发明专利
    REINFORCING FIBER WOVEN FABRIC 失效

    公开(公告)号：JPH08209482A

    公开(公告)日：1996-08-13

    申请号：JP1773595

    申请日：1995-02-06

    Applicant: TORAY INDUSTRIES

    Inventor： OCHI TSUYOSHI ,  YAMANE SHOJI ,  WADA KENJI

    IPC: C08J5/24 ,  D03D1/00

    Abstract: PURPOSE: To obtain a reinforcing fiber woven fabric capable of facilitating operations to join raw fabrics in producing a prepreg and producing the prepreg of good quality by forming a part having a high flexural rigidity in a fabric end part of the rolled reinforcing fiber woven fabric. CONSTITUTION: This reinforcing woven fabric is obtained by forming a part 3 having an increased weft yarn basis weight where carbon fibers and glass fibers are simultaneously picked as weft yarns without varying the density of the picked weft yarns in the warp yarn direction 4 in the part within the range of 5-50cm from the fabric end 2 or applying a polyvinyl alcoholic size or resin or a backing agent to the part 3 and forming a part 5 at >=1.2 flexural rigidity ratio thereof to the other parts in weaving a 5-heald satin weave having about 350g/c basis weight from a 6000-filament carbon fiber bundle as reinforcing fibers and forming a roll 1. Operations to join each raw fabric are readily performed in producing a prepreg to afford the high-quality prepreg good in staightness of warp and the weft yarns.

    REGENERATING AND REUSING METHOD FOR CARBON FIBER REINFORCED RESIN FORMED BODY
    29.
    发明专利
    REGENERATING AND REUSING METHOD FOR CARBON FIBER REINFORCED RESIN FORMED BODY 失效

    公开(公告)号：JPH04323009A

    公开(公告)日：1992-11-12

    申请号：JP9207291

    申请日：1991-04-23

    Applicant: TORAY INDUSTRIES

    Inventor： YAMANE SHOJI

    IPC: B29B17/00 ,  B29K105/06 ,  B29K105/08 ,  B29K105/26 ,  B29K307/04 ,  C08J11/06

    Abstract: PURPOSE:To make it possible to take out only carbon fibers for reuse by a method wherein carbon fiber reinforced resin formed body is treated at the temperature, which is higher than the decomposition point of its matrix resin and at which carbon fiber is not substantially decomposed, so as to be turned into a carbon fiber lump, which is made into an integral body by decompression product. CONSTITUTION:In order to reuse carbon fiber reinforced resin formed body (CFRP), the CFRP is treated at the temperature, which is higher than the decomposition point of the matrix resin combined with carbon fiber and at which the carbon fiber is not substantially decomposed, so as to obtain a carbon fiber lump, which is made into an integral body by the decomposition product of tire matrix resin. In this case, the decomposition percentage of the matrix resin in the integrated carbon fiber lump is set to be 80-99.5%. The carbon fiber lump is easily divided into constitutional fibers by the treatment in the following process. The recovered carbon fibers are reused as they are or after being processed into proper lengths.

    MODIFIED CROSS-SECTIONAL CARBON YARN AND CARBON YARN-REINFORCED COMPOSITE MATERIAL
    30.
    发明专利
    MODIFIED CROSS-SECTIONAL CARBON YARN AND CARBON YARN-REINFORCED COMPOSITE MATERIAL 失效

    公开(公告)号：JPH04202815A

    公开(公告)日：1992-07-23

    申请号：JP33545990

    申请日：1990-11-29

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAZAKI KATSUMI ,  YAMANE SHOJI ,  IZUMI YUKIO

    IPC: C08J5/04 ,  D01D5/253 ,  D01F9/12 ,  D01F9/22

    Abstract: PURPOSE:To provide the subject yarn excellent in composite characteristics, characteristics in the direction rectangular to the axis of the yarn, and compression characteristics in the direction of the axis, the cross-sectional shape of a single filament being a multi-lobar shape, each lobe having a specific shape, and the filament having a modification degree in a definite range. CONSTITUTION:The objective yarn is characterized in that the cross-sectional shape of a single filament is a multi-lobar shape having three-five lobes, each lobe being once expanded from its root toward its tip, the multi-lobar shape being a shape in which plural circles are contacted with each other, and each filament having a modification degree of 1.5-3, the modification degree being defined by a ratio of R/r between the circumscribed circle radius R of the filament cross-sectional shape and the inscribed circle radius r. The above single filament is preferably a carbon fiber.

Patent Agency Ranking