公开(公告)号：US20190275706A1

公开(公告)日：2019-09-12

申请号：US16346667

申请日：2017-10-17

Applicant: Teijin Limited

Inventor： Daisuke Kobayashi ,  Guofei Hua

IPC: B29B15/12 ,  B29B9/14 ,  B29B15/14 ,  B29C45/00 ,  C08J3/12 ,  C08J5/06

Abstract: The present invention provides an assembly of molding materials, each of which is obtained by covering a carbon fiber bundle that contains an impregnation assistant with a thermoplastic resin. This assembly of molding materials is configured such that 30% or more of the whole assembly is a molding material that satisfies 100≤F/L (N/m), where L is the molding material length in the axial direction of the carbon fiber bundle and F is the grip force of the carbon fiber bundle with respect to the molding material. Consequently, falling-off of carbon fibers from the molding materials during injection molding is able to be prevented, so that a molded body is able to be produced with high production efficiency.

公开(公告)号：US20160101542A1

公开(公告)日：2016-04-14

申请号：US14890944

申请日：2013-09-19

Applicant: TEIJIN LIMITED

Inventor： Kazunari Kosaka ,  Takuro Kitamura ,  Yasuyuki Kondo ,  Daisuke Kobayashi

IPC: B29C43/00 ,  C08L67/02

CPC classification number: B29C43/003 ,  B29C43/52 ,  B29C70/46 ,  B29K2067/006 ,  B29K2307/04 ,  B29L2031/00 ,  B29L2031/3041 ,  C08J5/042 ,  C08J5/06 ,  C08J2367/02 ,  C08J2469/00 ,  C08K5/29 ,  C08L67/02 ,  C08L69/00

Abstract: Provided is a method for manufacturing a composite material including peforming press molding a fiber matrix structure including reinforcing fibers and a matrix resin which mainly includes a polyester-based resin and includes an aromatic polycarbonate resin and. Furthermore, it is preferred that the polyester-based resin is a polyester copolymer and includes a terephthalic acid component and an isophthalic acid component. In addition, it is preferred that the press molding is cold pressing in which a die temperature is 170° C. or lower; that the reinforcing fibers are carbon fibers or fibers mainly including discontinuous fibers; and furthermore, that the discontinuous fibers are randomly oriented in the structure.

Abstract translation: 本发明提供一种复合材料的制造方法，该复合材料包括具有增强纤维的纤维基质结构和主要包含聚酯类树脂并且包含芳族聚碳酸酯树脂的基质树脂的压制成型。 此外，优选聚酯类树脂是聚酯共聚物，并且包括对苯二甲酸组分和间苯二甲酸组分。 此外，优选的是，模压为模具温度为170℃以下的冷压成型; 增强纤维是主要包括不连续纤维的碳纤维或纤维; 此外，不连续纤维在结构中随机取向。

公开(公告)号：US20160145410A1

公开(公告)日：2016-05-26

申请号：US14899998

申请日：2014-07-30

Applicant: TEIJIN LIMITED

Inventor： Yasuyuki Kondo ,  Takuro Kitamura ,  Kazunari Kosaka ,  Daisuke Kobayashi

IPC: C08K3/04 ,  C08K7/06

CPC classification number: C08K3/04 ,  C08J5/042 ,  C08J5/047 ,  C08J5/10 ,  C08J2377/00 ,  C08K7/06

Abstract: A fiber-reinforced composite material obtained by reinforcing a matrix resin with fibers, wherein the matrix resin contains a thermoplastic resin and a carbon black, the fibers are discontinuous carbon fibers, a part of the discontinuous carbon fibers forms fiber bundles, and the thickness of a thinnest part of the matrix resin which is located between an outermost surface of the composite material and the fibers existing in an inside of the composite material is less than 100 μm. Further, it is preferred that the thermoplastic resin is a polyamide-based resin, that the discontinuous carbon fibers have a length of from 3 to 100 mm, and that the orientation of the discontinuous carbon fibers is random. Furthermore, it is preferred that the size of the primary particle diameter of the carbon black is within a range of 7 to 75 nm.

Abstract translation: 通过用纤维增强基质树脂而获得的纤维增强复合材料，其中基质树脂含有热塑性树脂和炭黑，纤维是不连续的碳纤维，一部分不连续的碳纤维形成纤维束， 位于复合材料的最外表面和存在于复合材料内部的纤维之间的基体树脂的最薄部分小于100μm。 此外，优选热塑性树脂是聚酰胺类树脂，不连续碳纤维的长度为3〜100mm，不连续碳纤维的取向是随机的。 此外，优选炭黑的一次粒径的尺寸在7〜75nm的范围内。

公开(公告)号：US09701069B2

公开(公告)日：2017-07-11

申请号：US14429942

申请日：2013-09-19

Applicant: Teijin Limited

Inventor： Kazunari Kosaka ,  Takuro Kitamura ,  Yasuyuki Kondo ,  Daisuke Kobayashi

IPC: B27N3/10 ,  B29C70/46 ,  C08J5/04 ,  B29C70/12 ,  B29C43/00 ,  B29K67/00 ,  B29K79/00 ,  B29K105/00 ,  B29K307/04

CPC classification number: B29C70/46 ,  B29C43/003 ,  B29C70/12 ,  B29K2067/003 ,  B29K2067/006 ,  B29K2079/08 ,  B29K2105/0085 ,  B29K2307/04 ,  C08J5/042 ,  C08J2367/02

Abstract: Disclosed is a method for manufacturing a composite material, which includes performing press molding of a fiber matrix structure including reinforcing fibers and a matrix resin mainly including a polyester-based resin having a crystallization temperature of 185° C. or lower. Furthermore, the polyester-based resin is preferably a polyester-based copolymer. In addition, it is preferred that the matrix resin includes a carbodiimide, and that the carbodiimide has a cyclic structure. Moreover, it is preferred that the press molding is cold pressing in which a die temperature is 170° C. or lower; that the reinforcing fibers are carbon fibers; and that the discontinuous fibers are randomly oriented in the structure.

公开(公告)号：US09631061B2

公开(公告)日：2017-04-25

申请号：US14899998

申请日：2014-07-30

Applicant: Teijin Limited

Inventor： Yasuyuki Kondo ,  Takuro Kitamura ,  Kazunari Kosaka ,  Daisuke Kobayashi

IPC: C08K7/06 ,  C08K3/04 ,  C08J5/04 ,  C08J5/10

CPC classification number: C08K3/04 ,  C08J5/042 ,  C08J5/047 ,  C08J5/10 ,  C08J2377/00 ,  C08K7/06

Abstract: A fiber-reinforced composite material obtained by reinforcing a matrix resin with fibers, wherein the matrix resin contains a thermoplastic resin and a carbon black, the fibers are discontinuous carbon fibers, a part of the discontinuous carbon fibers forms fiber bundles, and the thickness of a thinnest part of the matrix resin which is located between an outermost surface of the composite material and the fibers existing in an inside of the composite material is less than 100 μm. Further, it is preferred that the thermoplastic resin is a polyamide-based resin, that the discontinuous carbon fibers have a length of from 3 to 100 mm, and that the orientation of the discontinuous carbon fibers is random. Furthermore, it is preferred that the size of the primary particle diameter of the carbon black is within a range of 7 to 75 nm.

公开(公告)号：US20150239182A1

公开(公告)日：2015-08-27

申请号：US14429942

申请日：2013-09-19

Applicant: Teijin Limited

Inventor： Kazunari Kosaka ,  Takuro Kitamura ,  Yasuyuki Kondo ,  Daisuke Kobayashi

IPC: B29C70/46 ,  C08J5/04

CPC classification number: B29C70/46 ,  B29C43/003 ,  B29C70/12 ,  B29K2067/003 ,  B29K2067/006 ,  B29K2079/08 ,  B29K2105/0085 ,  B29K2307/04 ,  C08J5/042 ,  C08J2367/02

Abstract: Disclosed is a method for manufacturing a composite material, which includes performing press molding of a fiber matrix structure including reinforcing fibers and a matrix resin mainly including a polyester-based resin having a crystallization temperature of 185° C. or lower. Furthermore, the polyester-based resin is preferably a polyester-based copolymer. In addition, it is preferred that the matrix resin includes a carbodiimide, and that the carbodiimide has a cyclic structure. Moreover, it is preferred that the press molding is cold pressing in which a die temperature is 170° C. or lower; that the reinforcing fibers are carbon fibers; and that the discontinuous fibers are randomly oriented in the structure.

Abstract translation: 公开了一种复合材料的制造方法，其包括对包含增强纤维的纤维基质结构和主要包含结晶温度为185℃以下的聚酯类树脂的基质树脂进行加压成型。 此外，聚酯系树脂优选为聚酯系共聚物。 此外，优选基体树脂包括碳二亚胺，并且碳二亚胺具有环状结构。 此外，优选的是，压模成型为模具温度为170℃以下的冷压， 增强纤维是碳纤维; 并且不连续纤维在结构中随机取向。