公开(公告)号：US20180283609A1

公开(公告)日：2018-10-04

申请号：US15780879

申请日：2016-12-21

申请人： NITTA CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Hiromi TERUHIRA ,  Takuji KOMUKAI ,  Maki ONIZUKA ,  Naoki NAKAMURA ,  Masaki ANDO

IPC分类号： F17C1/06 ,  B29C70/86 ,  B29C70/32 ,  B29C70/22

摘要： A high pressure container has enhanced pressure resistant strength, and a method for manufacturing such high pressure container. The high pressure container includes a sealable hollow liner and a reinforcement layer including a composite carbon fiber bundle covering an outer surface of the hollow liner, wherein the reinforcement layer is wound around the outer surface of the hollow liner and fixed with a cured product of thermosetting resin, and a stress relaxation portion including the cured product of thermosetting product and a plurality of carbon nanotubes between a carbon fiber contained in one composite carbon fiber bundle and a carbon fiber contained in the other composite carbon fiber bundle.

公开(公告)号：US20190048519A1

公开(公告)日：2019-02-14

申请号：US16079257

申请日：2017-03-22

申请人： NITTA CORPORATION

发明人： Maki ONIZUKA ,  Takuji KOMUKAI

IPC分类号： D06M11/74 ,  D03D1/00 ,  D03D15/12 ,  D06M10/02 ,  D02G3/44 ,  D03D13/00

摘要： Provided are a method for manufacturing a composite fabric capable of further improving the strength of a carbon fiber-reinforced molded article, a composite fabric, and a carbon fiber-reinforced molded article.The method includes a step of holding a surface of a filter part (22A), through which a dispersion solvent and carbon nanotubes dispersed in the dispersion solvent are allowed to pass, in contact with at least one surface of a woven fabric (12A) including a carbon fiber bundle as weaving yarn, a step of immersing the woven fabric (12A) on which the filter part (22A) is held in a dispersion that comprises the dispersion solvent and the dispersed carbon nanotubes and applying ultrasonic vibrations to the dispersion, and a step of extracting the woven fabric (12A) on which the filter part (22A) is held from the dispersion and removing the filter part (22A) from the woven fabric (12A).

公开(公告)号：US20180119332A1

公开(公告)日：2018-05-03

申请号：US15561944

申请日：2016-03-30

申请人： NITTA CORPORATION

发明人： Takuji KOMUKAI ,  Hiromi TERUHIRA ,  Maki ONIZUKA

IPC分类号： D06M10/02 ,  D06M11/74

CPC分类号： D06M10/02 ,  D06M11/74 ,  D06M2101/40

摘要： There are provided a method for producing a composite material from which a high-strength prepreg having CNT-derived properties fully exerted is obtained, comprising a step of immersing a carbon fiber bundle including a plurality of continuous carbon fibers in a carbon-nanotubes-isolated dispersion containing a plurality of isolatedly-dispersed carbon nanotubes and applying ultrasonic vibrations at a frequency of more than 40 kHz and 180 kHz or less to form a structure comprising a plurality of carbon nanotubes on the surface of each of the plurality of carbon fibers, wherein the structures are directly attached to the surface of each of the plurality of carbon fibers and form together a network structure in which the carbon nanotubes are directly connected to one another, and such a composite material.

公开(公告)号：US20210230386A1

公开(公告)日：2021-07-29

申请号：US15734624

申请日：2019-06-10

申请人： NITTA CORPORATION

发明人： Takuji KOMUKAI ,  Maki ONIZUKA ,  Hiromi TERUHIRA

IPC分类号： C08J5/24 ,  D06M10/02 ,  D06M11/74 ,  C09C1/44 ,  C08J5/00 ,  C08J5/04 ,  C08J5/06

摘要： Provided are a composite material capable of further enhancing property derived from carbon nanotubes adhered to carbon fibers, a prepreg, a carbon-fiber-reinforced molded article, and a method for manufacturing a composite material. There is provided a composite material including: carbon fibers; and a structure which includes a plurality of carbon nanotubes and has a network structure in which the carbon nanotubes are in direct contact with each other, and in which the carbon nanotubes adhered to surfaces of the carbon fibers directly adhere to the surfaces of the carbon fibers. The carbon nanotubes have a bent shape having a bent portion.