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    METHOD FOR PRODUCING PRESS MOLDED BODY
    1.
    发明公开
    METHOD FOR PRODUCING PRESS MOLDED BODY 审中-公开

    公开(公告)号：EP3733372A1

    公开(公告)日：2020-11-04

    申请号：EP18895798.9

    申请日：2018-12-06

    申请人： Teijin Limited

    发明人： SUZUKI, Shuhei ,  KITAGAWA, Masahiro ,  OHKI, Takeru

    IPC分类号： B29C43/58 ,  B29C43/18 ,  B29C70/42 ,  B29K101/12 ,  B29K105/08

    摘要： The present invention provides a method for producing a press molded body, wherein a material X that contains a thermoplastic resin Rx and carbon fibers A having a weight average fiber length Lw A and a material Y that contains a thermoplastic resin Ry and carbon fibers B having a weight average fiber length Lw B are heated, and the heated material X and material Y are pressed within a mold at the same time, thereby producing a press molded body which has a region X that is formed of the material X and a region Y that is formed of the material Y. This method for producing a press molded body is configured such that: Lw B A ; Lw B is from 0.1 mm to 15 mm (inclusive); and the press molded body has a transition zone XY wherein the region X and the region Y overlap with each other.

    COMPOSITE BASE
    2.
    发明公开
    COMPOSITE BASE 审中-公开
    ZUSAMMUSTRETZET基础

    公开(公告)号：EP2871202A1

    公开(公告)日：2015-05-13

    申请号：EP13813097.6

    申请日：2013-07-02

    申请人： Teijin Limited

    发明人： OHKI, Takeru ,  HAGIHARA, Katsuyuki

    IPC分类号： C08J5/06

    CPC分类号： C08J5/042 ,  B29C70/12 ,  B29C70/465 ,  B29K2101/12 ,  B29K2307/04 ,  C08J5/24 ,  C08J2300/22 ,  C08J2333/20 ,  C08J2367/02 ,  C08J2369/00 ,  C08J2377/02

    摘要： A composite base material, including: carbon fibers having an average fiber length of 3 mm or more and 100 mm or less; and a thermoplastic resin is firmly fixed to the carbon fibers in an amount of 3 to 100 parts by mass with respect to 100 parts by mass of the carbon fibers, wherein a void ratio is more than 7 vol% to less than 100 vol%.

    摘要翻译： 一种复合基材，包括：平均纤维长度为3mm以上且100mm以下的碳纤维; 相对于100质量份的碳纤维，热塑性树脂以相对于碳纤维为3〜100质量份的量固定在碳纤维上，其中空隙率大于7体积％至小于100体积％。

    COMPOSITE MATERIAL AND PRODUCTION METHOD THEREFOR
    3.
    发明公开
    COMPOSITE MATERIAL AND PRODUCTION METHOD THEREFOR 审中-公开

    公开(公告)号：EP3719079A1

    公开(公告)日：2020-10-07

    申请号：EP18883729.8

    申请日：2018-11-21

    申请人： Teijin Limited

    发明人： ONOUE, Shuhei ,  KATO, Takumi ,  TOYOZUMI, Takashi ,  OOTSUBO, Makoto ,  OHKI, Takeru ,  HUA, Guofei ,  NOMURA, Akihisa

    IPC分类号： C08L101/00 ,  C08J5/04 ,  C08K7/06 ,  D01F9/12

    摘要： The present invention provides: a composite material which comprises a thermoplastic matrix resin and carbon fibers A comprising carbon fiber bundles A1 in which Li/ (Ni × Di 2 ) is 6.7 × 10 1 to 3.3 × 10 3 , wherein the carbon fibers A have a fiber length of 5-100 mm and the carbon fiber bundles A1 are contained in an amount of 80 vol% or larger but less than 100 vol% with respect to the carbon fibers A and wherein removal of the matrix resin from the composite material gives a carbon fiber mass which, when compressed to a thickness of Tf, has a repulsive force P of 0.05-1.00 MPa; and a method for producing the composite material, the method comprising subjecting a composite composition comprising carbon fibers and a thermoplastic resin to an impregnation treatment with a compression/impregnation device. Li is the fiber length (mm) of the carbon fiber bundles. Di is the single-filament diameter (mm) of the carbon fibers constituting the carbon fiber bundles. Ni is the number of single-filament fibers contained in the carbon fiber bundles. Tf is [(basis weight of the carbon fiber mass)/(density of the carbon fibers)] × 3 (mm).

    METHOD FOR PRODUCING BONDED BODY
    5.
    发明公开
    METHOD FOR PRODUCING BONDED BODY 审中-公开

    公开(公告)号：EP3466652A1

    公开(公告)日：2019-04-10

    申请号：EP17810375.0

    申请日：2017-06-07

    申请人： Teijin Limited

    发明人： SHI, Jianwei ,  OHKI, Takeru

    IPC分类号： B29C65/08

    摘要： The present invention provides a method for producing a bonded body, wherein a bonded body, in which a member A containing a thermoplastic resin and a member B containing a thermoplastic resin are bonded with each other, is obtained by arranging a bonding member between the member A and member B and melting at least a part of the bonding member. In this connection, the bonding member has: a sheet part containing a thermoplastic resin; and a plurality of projection parts containing a thermoplastic resin, which are on at least one surface of the sheet part and are integrated with the sheet part.

    METHOD FOR PRODUCING PRESS MOLDED BODY
    6.
    发明公开
    METHOD FOR PRODUCING PRESS MOLDED BODY 审中-公开

    公开(公告)号：EP3885097A1

    公开(公告)日：2021-09-29

    申请号：EP21174315.8

    申请日：2018-12-06

    申请人： Teijin Limited

    发明人： SUZUKI, Shuhei ,  KITAGAWA, Masahiro ,  OHKI, Takeru

    IPC分类号： B29C43/34 ,  B29C43/00 ,  B29C43/58 ,  B29C70/42 ,  B29C70/08 ,  B29C70/34 ,  B29K105/12 ,  B29K105/26 ,  B29K307/04 ,  G06F113/26 ,  B29K105/08 ,  B29K101/12

    摘要： The present invention provides a method for producing a press molded body, wherein a material X that contains a thermoplastic resin Rx and carbon fibers A having a weight average fiber length L WA and a material Y that contains a thermoplastic resin Ry and carbon fibers B having a weight average fiber length Lw B are heated, and the heated material X and material Y are pressed within a mold at the same time, thereby producing a press molded body which has a region X that is formed of the material X and a region Y that is formed of the material Y. This method for producing a press molded body is configured such that: Lw B A ; Lw B is from 0.1 mm to 15 mm (inclusive); and the press molded body has a transition zone XY wherein the region X and the region Y overlap with each other.

    COMPOSITE MATERIAL, PRODUCTION METHOD FOR MOLDED OBJECT, AND PRODUCTION METHOD FOR COMPOSITE MATERIAL
    10.
    发明公开
    COMPOSITE MATERIAL, PRODUCTION METHOD FOR MOLDED OBJECT, AND PRODUCTION METHOD FOR COMPOSITE MATERIAL 审中-公开

    公开(公告)号：EP3719078A1

    公开(公告)日：2020-10-07

    申请号：EP18882318.1

    申请日：2018-11-21

    申请人： Teijin Limited

    发明人： OOTSUBO, Makoto ,  OHKI, Takeru ,  HUA, Guofei ,  NOMURA, Akihisa ,  SUZUKI, Shuhei ,  ONOUE, Shuhei ,  KATO, Takumi ,  TOYOZUMI, Takashi

    IPC分类号： C08L101/00 ,  C08J5/04 ,  C08K7/06 ,  D01F9/12

    摘要： The present invention provides: a composite material which comprises a thermoplastic matrix resin and carbon fibers A comprising carbon fiber bundles A1 in which Li/(Ni × Di 2 ) satisfies 6.7 × 10 1 to 3.3 × 10 3 , wherein the carbon fibers A have a fiber length of 5-100 mm and have a value of Lw A1 /(N A1 ave × D A1 2 ) of 1.0 × 10 2 to 3.3 × 10 3 , the carbon fiber bundles A1 having an average bundle width W A1 less than 3.5 mm and being contained in an amount of 90 vol% or larger with respect to the carbon fibers A; a production method for the composite material; and a method for producing a molded object from the composite material. Li is the fiber length (mm) of carbon fiber bundles. Di is the single-filament diameter (mm) of the carbon fibers constituting the carbon fiber bundles. Ni is the number of the single-filament fibers contained in the carbon fiber bundles. Lw A1 is the weight-average fiber length (mm) of the carbon fiber bundles A1. N A1 ave is the average number of single-filament fibers contained in the carbon fiber bundles A1. D A1 is the single-filament diameter (mm) of carbon fibers constituting the carbon fiber bundles A1.