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    CARBON FIBER COMPOSITE MATERIAL
    21.
    发明申请
    CARBON FIBER COMPOSITE MATERIAL 有权
    碳纤维复合材料

    公开(公告)号：US20150005434A1

    公开(公告)日：2015-01-01

    申请号：US14377392

    申请日：2013-02-05

    Applicant: Toray Industries, Inc.

    Inventor： Katsuhiro Miyoshi ,  Takashi Shimada ,  Takafumi Hashimoto ,  Tetsuya Ohara ,  Tomonori Iizuka ,  Shoji Nakashima

    IPC: C08K7/06

    CPC classification number: C08K7/06 ,  C08J5/042 ,  C08J2323/12 ,  C08K2201/004

    Abstract: A carbon fiber composite material includes the material is made of carbon fibers and a thermoplastic resin; the proportion Y, relative to the total weight of carbon fibers, of carbon fiber bundles for which Mn/(Ln×D) is 8.5×10−1 (mg/mm2) or more, is 30≦Y

    Abstract translation: 碳纤维复合材料包括由碳纤维和热塑性树脂制成的材料; Mn /（Ln×D）为8.5×10-1（mg / mm2）以上的碳纤维束的比例Y相对于碳纤维的总重量为30重量％，Y <90重量％ ; 碳纤维束的Mn / Ln的平均值X为1.1×10 -2＆nlE; X＆lt; N1; 8.1×10 -2（mg / mm）; Y满足Y≥100X+ 30，其中Mn：碳纤维束的重量，Ln：碳纤维的纤维长度，D：碳纤维的纤维直径。 碳纤维复合材料结合了高流动性和机械性能，机械性能的变化很小，并且对于诸如肋骨的小零件，显示出优异的碳纤维适应性。

    Discontinuous fiber-reinforced composite material
    22.
    发明授权
    Discontinuous fiber-reinforced composite material 有权

    公开(公告)号：US11007675B2

    公开(公告)日：2021-05-18

    申请号：US16078716

    申请日：2017-02-15

    Applicant: Toray Industries, Inc.

    Inventor： Katsuhiro Miyoshi ,  Takafumi Hashimoto ,  Tetsuya Motohashi

    IPC: B29B15/12 ,  B29C70/10 ,  B29B11/16 ,  B29C45/00 ,  B29C65/00 ,  B29C70/14 ,  B29C70/20 ,  B29K101/10 ,  B29K101/12 ,  B29K105/12 ,  B29C70/54

    Abstract: A discontinuous fiber-reinforced composite material including a discontinuous reinforcing fiber aggregate of a discontinuous reinforcing fiber having a number average fiber length of 3 to 100 mm and a matrix resin, the discontinuous reinforcing fiber aggregate including a plurality of discontinuous reinforcing fiber bundles having a predetermined number of unidirectionally-bundled single yarns of the discontinuous reinforcing fiber, wherein the discontinuous reinforcing fiber bundle has a cut surface inclined at a predetermined angle with respect to an orientation direction of the single yarn of the discontinuous reinforcing fiber bundle and has different fiber bundle lengths defined as a distance between both ends along the orientation direction of the single yarn of the discontinuous reinforcing fiber bundle, and the longer the fiber bundle length of the discontinuous reinforcing fiber bundle is, the smaller a tip angle defined as an acute angle at an end of a two-dimensional plane projection of the discontinuous reinforcing fiber bundle is.

    REINFORCING FIBER COMPOSITE MATERIAL
    27.
    发明申请
    REINFORCING FIBER COMPOSITE MATERIAL 审中-公开

    公开(公告)号：US20180001580A1

    公开(公告)日：2018-01-04

    申请号：US15545076

    申请日：2015-11-12

    Applicant: Toray Industries, Inc.

    Inventor： Katsuhiro Miyoshi ,  Takafumi Hashimoto ,  Tetsuya Motohashi ,  Kenta Bamba

    IPC: B29C70/50 ,  B29C70/14 ,  B29B11/16

    CPC classification number: B29C70/508 ,  B29B11/16 ,  B29C70/12 ,  B29C70/14 ,  B29C70/506

    Abstract: A reinforcing fiber composite material includes at least a matrix resin and discontinuous reinforcing fibers which include discontinuous reinforcing fiber aggregates, wherein the discontinuous reinforcing fibers include at least 5 wt % of discontinuous reinforcing fiber aggregates (A) in each of which a most widened section, where the width of the discontinuous reinforcing fiber aggregate in a direction intersecting the alignment direction of the discontinuous reinforcing fibers is made greatest when the discontinuous reinforcing fiber aggregate is two-dimensionally projected, is present at a position excluding both ends of the discontinuous reinforcing fiber aggregate, and the aspect ratio (width of the discontinuous reinforcing fiber aggregate/thickness of the discontinuous reinforcing fiber aggregate) of the most widened section is 1.3 times or more the aspect ratio of at least one of the ends of the discontinuous reinforcing fiber aggregate.

    REINFORCING FIBER COMPOSITE MATERIAL
    28.
    发明申请
    REINFORCING FIBER COMPOSITE MATERIAL 审中-公开

    公开(公告)号：US20170305074A1

    公开(公告)日：2017-10-26

    申请号：US15513720

    申请日：2015-09-03

    Applicant: Toray Industries, Inc.

    Inventor： Katsuhiro Miyoshi ,  Yukitane Kimoto ,  Takafumi Hashimoto

    IPC: B29C70/12 ,  B29K307/04 ,  B29K105/12

    CPC classification number: B29C70/12 ,  B29K2105/12 ,  B29K2307/04

    Abstract: A reinforcing fiber composite material characterized by comprising discontinuous reinforcing fibers containing discontinuous reinforcing fiber aggregates and a matrix resin, wherein a fan-shaped discontinuous reinforcing fiber aggregate (A) is contained at an amount of 5% by weight or more in the discontinuous reinforcing fibers, and wherein the fan-shaped discontinuous reinforcing fiber aggregate (A) has a fan-like section in which an aspect ratio at least at one end part of a discontinuous reinforcing fiber aggregate (the width of the discontinuous reinforcing fiber aggregate/the thickness of the discontinuous reinforcing fiber aggregate) is 1.5 times or more relative to an aspect ratio at a narrowest part at which the width of the discontinuous reinforcing fiber aggregate is smallest when the discontinuous reinforcing fiber aggregate is projected two-dimensionally.

    FIBER-REINFORCED RESIN MOLDING MATERIAL AND PRODUCTION METHOD THEREOF
    29.
    发明申请
    FIBER-REINFORCED RESIN MOLDING MATERIAL AND PRODUCTION METHOD THEREOF 审中-公开

    公开(公告)号：US20170260345A1

    公开(公告)日：2017-09-14

    申请号：US15512333

    申请日：2015-08-31

    Applicant: Toray Industries, Inc.

    Inventor： Kenta Bamba ,  Tetsuya Motohashi ,  Katsuhiro Miyoshi ,  Takafumi Hashimoto

    IPC: C08J5/04 ,  C08J5/24

    CPC classification number: C08J5/042 ,  C08J5/04 ,  C08J5/24 ,  C08J2335/02

    Abstract: A fiber-reinforced resin molding material includes at least bundled discontinuous reinforcing fiber aggregates and matrix resin, wherein said bundled reinforcing fiber aggregates include both reinforcing fiber aggregates (A) which are formed by cutting continuous reinforcing fiber strands after fiber splitting, in which said strands are completely split into multiple bundles, and reinforcing fiber aggregates (B) having at least unsplit strand sections in which fiber splitting is incomplete, an incision substantially originating from fiber splitting is present at least at one of both end portions of said reinforcing fiber aggregates (B), and a ratio of the weight of said reinforcing fiber aggregates (B) to the total weight of reinforcing fibers in said material is 5-50%.

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