公开(公告)号：US10550496B2

公开(公告)日：2020-02-04

申请号：US15553323

申请日：2016-02-24

Applicant: Teijin Limited

Inventor： Makoto Ootsubo ,  Yukino Oosawa

IPC: D02J1/18 ,  B65H51/005 ,  D01D11/02

Abstract: A method for producing yarns separated from reinforcing fiber strands including a process of intermittently separating fibers of the reinforcing fiber strands.

公开(公告)号：US20160059432A1

公开(公告)日：2016-03-03

申请号：US14838968

申请日：2015-08-28

Applicant: Teijin Limited

Inventor： Makoto Ootsubo ,  Hiroya Hada ,  Toshiki Maeda ,  Takuo Kanzaki

IPC: B26D7/10 ,  C08K7/06 ,  C08K7/14

CPC classification number: B26D7/10

Abstract: According to an aspect of the present invention, there is provided a method for producing cut bodies including: cutting a fiber-reinforced resin material including reinforcing fibers having a tensile strength of 1,000 MPa to 6,000 MPa and a thermoplastic resin, wherein a flexural modulus of the fiber-reinforced resin material is decreased to 80% to 15% at the cutting.

Abstract translation: 根据本发明的一个方面，提供一种切割体的制造方法，其特征在于，包括：将包含拉伸强度为1000MPa〜6,000MPa的增强纤维的纤维强化树脂材料切割成热塑性树脂， 纤维增强树脂材料在切割时降低至80％至15％。

公开(公告)号：US11168186B2

公开(公告)日：2021-11-09

申请号：US16912831

申请日：2020-06-26

Applicant: Teijin Limited

Inventor： Naoaki Sonoda ,  Makoto Ootsubo ,  Takeru Ohki

IPC: C08J5/04 ,  D04H1/72 ,  D04H1/4342 ,  D04H1/4242 ,  D04H1/4218

Abstract: Provided is a reinforcing fiber mat including a reinforcing fiber mat constituted by reinforcing fibers having an average fiber length of 3 to 100 mm. The reinforcing fibers satisfy the following i) to iv): i) a weight-average fiber width (Ww) of the reinforcing fibers satisfies the following Equation (1): 0.03 mm

公开(公告)号：US20180134857A1

公开(公告)日：2018-05-17

申请号：US15872006

申请日：2018-01-16

Applicant: Teijin Limited

Inventor： Naoaki Sonoda ,  Makoto Ootsubo ,  Takeru Ohki

IPC: C08J5/06 ,  D04H1/72 ,  D04H1/58 ,  D04H1/4342 ,  D04H1/4242 ,  D04H1/4218 ,  C08J5/04 ,  D01F9/12

CPC classification number: C08J5/06 ,  C08J5/042 ,  C08J2323/12 ,  C08J2433/20 ,  D01F9/12 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/4342 ,  D04H1/58 ,  D04H1/72 ,  Y10T428/24479

Abstract: There is provided a random mat including reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, wherein the reinforcing fibers satisfy the following i) to iii). i) The reinforcing fibers have a weight-average fiber width (Ww) which satisfies the following equation (1). 0 mm

公开(公告)号：US20180119317A1

公开(公告)日：2018-05-03

申请号：US15553323

申请日：2016-02-24

Applicant: Teijin Limited

Inventor： Makoto Ootsubo ,  Yukino Oosawa

IPC: D02J1/18 ,  B65H51/005 ,  D01D11/02

CPC classification number: D02J1/18 ,  B65H51/005 ,  B65H2701/31 ,  B65H2701/312 ,  B65H2701/314 ,  D01D11/02

Abstract: A method for producing yarns separated from reinforcing fiber strands including a process of intermittently separating fibers of the reinforcing fiber strands.

公开(公告)号：US11795279B2

公开(公告)日：2023-10-24

申请号：US16767297

申请日：2018-11-21

Applicant: Teijin Limited

Inventor： Makoto Ootsubo ,  Takeru Ohki ,  Guofei Hua ,  Akihisa Nomura ,  Shuhei Suzuki ,  Shuhei Onoue ,  Takumi Kato ,  Takashi Toyozumi

IPC: C08J5/04 ,  B29C70/46 ,  B29B15/10 ,  B29C70/16 ,  B29C70/50 ,  C08J5/24 ,  B29K101/12 ,  B29K307/04 ,  B29K77/00 ,  B29K105/12

CPC classification number: C08J5/042 ,  B29B15/10 ,  B29C70/16 ,  B29C70/46 ,  B29C70/50 ,  C08J5/243 ,  B29K2077/00 ,  B29K2101/12 ,  B29K2105/12 ,  B29K2307/04 ,  C08J2377/02

Abstract: A composite material which includes a thermoplastic matrix resin and carbon fibers A including carbon fiber bundles A1 in which Li/(Ni×Di2) satisfies 6.7×101 to 3.3×103, wherein the carbon fibers A have a fiber length of 5-100 mm and have a value of LwA1/(NA1ave×DA12) of 1.0×102 to 3.3×103, the carbon fiber bundles A1 having an average bundle width WA1 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 producing a molded object from the composite material is also provided.

公开(公告)号：US10406762B2

公开(公告)日：2019-09-10

申请号：US15706853

申请日：2017-09-18

Applicant: Teijin Limited

Inventor： Shuhei Onoue ,  Makoto Ootsubo ,  Yasunori Nagakura ,  Naoaki Sonoda

IPC: B29C70/18 ,  C08J5/04 ,  B29K101/12 ,  B29C70/12 ,  B29C70/50 ,  B29C70/30

Abstract: A carbon-fiber-reinforced resin composite material includes: carbon fibers including carbon fiber bundles and a thermoplastic resin, in which (1) a coefficient of variation (CV1) of a total areal weight of the carbon-fiber-reinforced resin composite material is 10% or lower, (2) a coefficient of variation (CV2) of a carbon fiber volume fraction (Vf) in the carbon-fiber-reinforced resin composite material which is defined by Expression (a) is 15% or lower, and (3) a weight average fiber length of the carbon fibers is 1 to 100 mm. Carbon Fiber Volume Fraction (Vf)=100×Volume of Carbon Fibers/(Volume of Carbon Fibers+Volume of Thermoplastic Resin)  Expression (a).

公开(公告)号：US20180001577A1

公开(公告)日：2018-01-04

申请号：US15706853

申请日：2017-09-18

Applicant: Teijin Limited

Inventor： Shuhei Onoue ,  Makoto Ootsubo ,  Yasunori Nagakura ,  Naoaki Sonoda

IPC: B29C70/18 ,  C08J5/04 ,  B29K101/12

CPC classification number: B29C70/18 ,  B29C70/12 ,  B29C70/305 ,  B29C70/502 ,  B29K2101/12 ,  C08J5/042

Abstract: A carbon-fiber-reinforced resin composite material includes: carbon fibers including carbon fiber bundles and a thermoplastic resin, in which (1) a coefficient of variation (CV1) of a total areal weight of the carbon-fiber-reinforced resin composite material is 10% or lower, (2) a coefficient of variation (CV2) of a carbon fiber volume fraction (Vf) in the carbon-fiber-reinforced resin composite material which is defined by Expression (a) is 15% or lower, and (3) a weight average fiber length of the carbon fibers is 1 to 100 mm. Carbon Fiber Volume Fraction (Vf)=100×Volume of Carbon Fibers/(Volume of Carbon Fibers+Volume of Thermoplastic Resin) . . . Expression (a).

公开(公告)号：US20150203642A1

公开(公告)日：2015-07-23

申请号：US14382051

申请日：2013-07-30

Applicant: Teijin Limited

Inventor： Naoaki Sonoda ,  Makoto Ootsubo ,  Takeru Ohki

IPC: C08J5/04

CPC classification number: C08J5/046 ,  C08J5/042 ,  C08J5/043 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/4342 ,  D04H1/72

Abstract: Provided is a fiber-reinforced composite material shaped product having isotropy and mechanical strength and a random mat used as an intermediate material thereof.The random mat includes reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, in which the reinforcing fibers satisfy the following i) to iii).i) A weight-average fiber width (Ww) of the reinforcing fibers satisfies the following Equation (1). 0.03 mm

Abstract translation: 本发明提供一种具有各向同性和机械强度的纤维增强复合材料成形制品和用作其中间材料的无规毡。 无机毡包括平均纤维长度为3〜100mm的增强纤维和热塑性树脂，其中增强纤维满足以下i）至iii）。 i）增强纤维的重均纤维宽度（Ww）满足下式（1）。 0.03mm

公开(公告)号：US20140339036A1

公开(公告)日：2014-11-20

申请号：US14360955

申请日：2012-11-27

Applicant: Teijin Limited

Inventor： Tsukasa ARAI ,  Yuhei Konagai ,  Makoto Ootsubo ,  Masatomo Teshima

IPC: F16F7/12 ,  B29C70/46

CPC classification number: F16F7/124 ,  B29C70/12 ,  B29C70/46 ,  B29K2067/006 ,  B29K2077/00 ,  B29K2105/256 ,  B29K2307/04 ,  B29K2995/0089 ,  B29K2995/0094

Abstract: A shock absorption member which is lightweight, has a high degree of freedom in shape, and is capable of efficiently absorbing shock energy, is provided.A shock absorption member including a bottom surface part and an upright part provided on the bottom surface part, in which at least one of the bottom surface part and the upright part includes a carbon-fiber-reinforced composite material including a thermoplastic resin, and the other may include a thermoplastic resin, and in which the amount of the thermoplastic resin present therein is 30 to 1,000 parts by mass based on 100 parts by mass of carbon fibers, and the average fiber length of the carbon fibers is 3 to 100 mm.

Abstract translation: 提供了一种重量轻的冲击吸收构件，其形状自由度高，能够有效地吸收冲击能量。 一种减震构件，包括设置在底面部的底面部和直立部，底面部和直立部中的至少一个包括含有热塑性树脂的碳纤维增强复合材料， 其他可以包括热塑性树脂，其中存在的热塑性树脂的量相对于100质量份碳纤维为30〜1000质量份，碳纤维的平均纤维长度为3〜100mm。