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公开(公告)号:US20240326124A1
公开(公告)日:2024-10-03
申请号:US18580003
申请日:2022-07-12
Applicant: TAIYO NIPPON SANSO CORPORATION
Inventor: Katsunori TAKADA , Naoya YAMAWAKI , Hiroshi IGARASHI , Noboru SUZUKI
IPC: B22F1/0545 , B22F1/102 , B22F9/20
CPC classification number: B22F1/0545 , B22F1/102 , B22F9/20 , B22F2301/10 , B22F2302/25 , B22F2302/45 , B22F2304/054
Abstract: The present invention provides composite copper nanoparticles that have high dispersibility in organic solvents, have little thermal shrinkage even when sintered at 300° C. or higher, and can form smooth electrode films. The present invention provides composite copper nanoparticles in which the surface of the copper nanoparticles is modified with a silane coupling agent, wherein the copper nanoparticles have a film containing cuprous oxide and copper carbonate on at least a part of the surface, wherein when the entire composite copper nanoparticles are taken as 100% by mass, a mass carbon concentration is 0.5 to 1.5% by mass, wherein a mass carbon concentration caused by the silane coupling agent in the mass carbon concentration is 0.5 to 1.2% by mass, and wherein when a total mass of the composite copper nanoparticles is 100% by mass, a mass silicon concentration is in a range from 0.05 to 0.11% by mas
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公开(公告)号:US20210301089A1
公开(公告)日:2021-09-30
申请号:US17264063
申请日:2019-07-25
Applicant: TAIYO NIPPON SANSO CORPORATION
Inventor: Yasuhito KODA , Katsunori TAKADA , Hiroshi IGARASHI
Abstract: An object of the present invention is to provide a production method for composite resin particles containing a fluororesin and a carbon nanomaterial and having excellent moldability while maintaining conductivity, the present invention provides a production method for composite resin particles containing a fluororesin and a carbon nanomaterial, comprising: a step of separating the fluororesin in the presence of a dispersion medium; a step of obtaining a dispersion containing the fluororesin, the carbon nanomaterial, and the dispersion medium by dispersing the fluororesin and the carbon nanomaterial in the dispersion medium; and a step of removing the dispersion medium by storing the dispersion in a drying container having a bottom surface, and drying the dispersion under conditions in which a dry area calculated by the following equation (1) is in a range of 20˜100 [cm2/g], Dry area=(S/W1) . . . (1), wherein S is an area [cm2] of the bottom surface of the drying container, and W1 is a mass [g] of the composite resin particles in the dispersion.
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公开(公告)号:US20200055733A1
公开(公告)日:2020-02-20
申请号:US16486568
申请日:2018-03-01
Applicant: TAIYO NIPPON SANSO CORPORATION
Inventor: Katsunori TAKADA , Toru SAKAI
IPC: C01B32/162 , C01B32/176
Abstract: Carbon nanotubes have at least one crystal defect in a region between a first end and a second end of the carbon nanotubes, of which a ratio (G/D) between an intensity IG of a peak caused by a graphite structure appearing in a G band around 1580 cm−1 and an intensity of ID of a peak caused by various defects appearing in a D band around 1360−1 in Raman spectrum obtained at an excitation wavelength of 632.8 nm is in a range of 0.1 to 0.5.
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公开(公告)号:US20210309812A1
公开(公告)日:2021-10-07
申请号:US17264434
申请日:2019-07-26
Applicant: TAIYO NIPPON SANSO CORPORATION
Inventor: Yasuhito KODA , Katsunori TAKADA , Hiroshi IGARASHI
Abstract: One object of the present invention is to provide a production method for powder that can produce powder which can suppress foaming of a melt and can produce a molded-article with good conductivity and appearance by melt-molding, the present invention provides a production method for powder containing a composite resin (2, 21, 22, 23) containing a thermomeltable resin (2a) and a conductive filler (2b), wherein the production method comprises: a dispersion preparing step in which a raw material powder containing the thermomeltable resin (2a), the conductive filler (2b), a dispersion medium in which the raw material powder and the conductive filler (2b) are dispersed, and a dispersant (3) for dispersing the conductive filler (2b) in the dispersion medium are mixed to prepare the dispersion: an intermediate powder recovering step in which the dispersion medium is removed from the dispersion and recovering an intermediate powder containing the composite resin (2, 21, 22, 23) and the dispersant (3); and a dispersant removing step in which the dispersant (3) is removed from the intermediate powder.
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公开(公告)号:US20200165435A1
公开(公告)日:2020-05-28
申请号:US16631959
申请日:2018-07-20
Applicant: TOHO KASEI CO., LTD. , TAIYO NIPPON SANSO CORPORATION
Inventor: Hirokazu YAMAMOTO , Takafumi NAKAGAWA , Hirotaka ITAMI , Isamu NOGUCHI , Katsunori TAKADA , Yasuhito KODA , Toru SAKAI
Abstract: An object of the present invention is to provide a resin material that yields a resin molded article which has not only a low volume resistivity but also excellent weldability and cleanliness and whose volume resistivity is unlikely to be increased even when subjected to an SPM cleaning treatment and the like. The present invention provides a composite resin material that contains a modified polytetrafluoroethylene and carbon nanotubes and has an average particle diameter of 500 μm or smaller.
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公开(公告)号:US20200048376A1
公开(公告)日:2020-02-13
申请号:US16339754
申请日:2017-10-06
Applicant: TOHO KASEI CO., LTD. , TAIYO NIPPON SANSO CORPORATION
Inventor: Hirokazu YAMAMOTO , Kazuya NINOMIYA , Hirotaka ITAMI , Takafumi NAKAGAWA , Kentaro MIYOSHI , Katsunori TAKADA , Toru SAKAI
Abstract: Provided is a composite resin material that yields a resin molded body which has not only a low volume resistivity but also excellent electroconductivity and/or antistatic properties and whose volume resistivity is unlikely to be increased even when subjected to, for example, a washing treatment with ozone water. The composite resin material contains a polychlorotrifluoroethylene and carbon nanotubes and has an average particle diameter of 500 μm or smaller.
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