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    • 3. 发明申请
    • FINE CARBON FIBER AGGREGATE MASS FOR REDISPERSION AND PROCESS FOR PRODUCTION THEREOF
    • 精细碳纤维聚合物质量重新生产及其生产工艺
    • US20100329966A1
    • 2010-12-30
    • US12598624
    • 2008-05-01
    • Bunshi Fugetsu
    • Bunshi Fugetsu
    • D01F9/12C09K3/00
    • D01F9/12B01F17/0007B82Y30/00B82Y40/00C01B32/16C01B32/174
    • The disclosed is a redispersible agglomerate of fine carbon fibers, which is obtained by adding the fine carbon fibers and a dispersing agent which shows solid state at least at ordinary temperature (20±10° C.) into an aqueous dispersion medium, and then removing the dispersion medium from a dispersion system where the carbon fibers are isolated individually and dispersed in the dispersion medium; and in which the carbon fibers are got together and solidified in the agglomerate while each carbon fiber maintains its isolated dispersibility; wherein the carbon content is in the range of 0.01-99.5% by weight, the dispersing agent content is in the range of 0.1-99.5% by weight, and the moisture content is in the range of less than. 10% by weight, based on the total weight of the agglomerate; and wherein the dispersing agent is one member selected from the group consisting of (1) surfactants capable of forming spheroidal, cylindrical, or tabular micelles of 5-2000 nm in diameter in an aqueous solution; (2) water-soluble high polymers having a weight average molecular weight in the range of 10,000-50,000,000; and (3) a combination of cyclodextrin and fullerene. This redispersible agglomerate of fine carbon fibers has a good handling property and would form a dispersed state of individually isolated carbon fibers when it is added in any of various dispersion media.
    • 所公开的是通过将细碳纤维和至少在常温(20±10℃)下显示固态的分散剂添加到水性分散介质中而获得的细碳纤维的可再分散的团块,然后除去 来自分散体系的分散介质,其中碳纤维被单独分离并分散在分散介质中; 并且其中碳纤维聚集在一起并固化在附聚物中,而每个碳纤维保持其分离的分散性; 其中碳含量在0.01-99.5重量%的范围内,分散剂含量在0.1-99.5重量%的范围内,并且水分含量在小于等于的范围内。 10重量%,基于附聚物的总重量; 并且其中所述分散剂是选自(1)在水溶液中直径为5-2000nm的球形,圆柱形或片状胶束的表面活性剂中的一种; (2)重均分子量在10,000-50,000,000范围内的水溶性高聚物; 和(3)环糊精和富勒烯的组合。 这种可再分散的细碳纤维聚集体具有良好的处理性能,并且当将其分散在任何各种分散介质中时,将形成单独分离的碳纤维的分散状态。
    • 6. 发明授权
    • Redispersible agglomerate of fine carbon fibers and method for producing thereof
    • 细碳纤维的可再分散聚集体及其制造方法
    • US08486362B2
    • 2013-07-16
    • US12598624
    • 2008-05-01
    • Bunshi Fugetsu
    • Bunshi Fugetsu
    • D01F9/12
    • D01F9/12B01F17/0007B82Y30/00B82Y40/00C01B32/16C01B32/174
    • The disclosed is a redispersible agglomerate of fine carbon fibers, which is obtained by adding the fine carbon fibers and a dispersing agent which shows solid state at least at ordinary temperature (20±10° C.) into an aqueous dispersion medium, and then removing the dispersion medium from a dispersion system where the carbon fibers are isolated individually and dispersed in the dispersion medium; and in which the carbon fibers are got together and solidified in the agglomerate while each carbon fiber maintains its isolated dispersibility; wherein the carbon content is in the range of 0.01-99.5% by weight, the dispersing agent content is in the range of 0.1-99.5% by weight, and the moisture content is in the range of less than. 10% by weight, based on the total weight of the agglomerate; and wherein the dispersing agent is one member selected from the group consisting of (1) surfactants capable of forming spheroidal, cylindrical, or tabular micelles of 5-2000 nm in diameter in an aqueous solution; (2) water-soluble high polymers having a weight average molecular weight in the range of 10,000-50,000,000; and (3) a combination of cyclodextrin and fullerene. This redispersible agglomerate of fine carbon fibers has a good handling property and would form a dispersed state of individually isolated carbon fibers when it is added in any of various dispersion media.
    • 所公开的是通过将细碳纤维和至少在常温(20±10℃)下显示固态的分散剂添加到水性分散介质中而获得的细碳纤维的可再分散的团块,然后除去 来自分散体系的分散介质,其中碳纤维被单独分离并分散在分散介质中; 并且其中碳纤维聚集在一起并固化在附聚物中,而每个碳纤维保持其分离的分散性; 其中碳含量在0.01-99.5重量%的范围内,分散剂含量在0.1-99.5重量%的范围内,并且水分含量在小于等于的范围内。 10重量%,基于附聚物的总重量; 并且其中所述分散剂是选自(1)在水溶液中直径为5-2000nm的球形,圆柱形或片状胶束的表面活性剂中的一种; (2)重均分子量在10,000-50,000,000范围内的水溶性高聚物; 和(3)环糊精和富勒烯的组合。 这种可再分散的细碳纤维聚集体具有良好的处理性能,并且当其加入到各种分散介质中时,将形成单独分离的碳纤维的分散状态。
    • 9. 发明申请
    • ELECTRO-CONDUCTIVE MULTIFILAMENT YARN AND ELECTRO-CONDUCTIVE BRUSH
    • 电导体多层纱和电导体刷
    • US20120315065A1
    • 2012-12-13
    • US13579298
    • 2011-03-03
    • Eiji AkibaMasaaki HachiyaHidetaka YamauchiBunshi Fugetsu
    • Eiji AkibaMasaaki HachiyaHidetaka YamauchiBunshi Fugetsu
    • D02G3/44G03G15/02D06M11/74G03G21/00B82Y30/00
    • D06M11/74D01D5/253D06M23/08G03G15/0233G03G21/0035Y10T428/292
    • An electro-conductive multifilament yarn for forming an electro-conductive brush comprises an electro-conductive fiber containing a synthetic fiber and a carbon nanotube covering a surface of the fiber. The synthetic fiber may have a single-filament fineness of not more than 30 dtex. The synthetic fiber may have 3 to 6 elongated recesses or grooves extending in a longitudinal direction thereof and have a multi-leaves or star-shaped cross-section. The electro-conductive multifilament yarn of the present invention has a high electro-conductivity and may have an electric resistance value of 1×106 to 1×1011 Ω/cm at 20° C. Further, the electro-conductivity has a high uniformity; the standard deviation of a logarithm of the electric resistance value may be not more than 1.0. Since the electro-conductive multifilament yarn of the present invention possesses uniform and excellent electro-conductive characteristics (charging or static removal property) required for an electro-conductive brush for an electrophotographic apparatus, the yarn is suitable as a cleaning brush for an electrophotographic apparatus.
    • 用于形成导电刷的导电复丝纱线包括含有合成纤维的导电纤维和覆盖纤维表面的碳纳米管。 合成纤维的单丝细度可以不超过30分特。 合成纤维可以具有在其纵向方向上延伸的3至6个细长凹槽或凹槽,并且具有多叶或星形横截面。 本发明的导电性复丝纱具有高导电性,在20℃下的电阻值可以为1×10 6〜1×10 11&OHgr / cm 2。此外,导电性具有高均匀性 ; 电阻值的对数的标准偏差可以不大于1.0。 由于本发明的导电复丝纱线具有电子照相设备用导电刷所需的均匀且优异的导电特性(充电或静电除去性),因此该纱线适合作为电子照相设备的清洁刷 。
    • 10. 发明申请
    • ELECTRO-CONDUCTIVE FIBERS WITH CARBON NANOTUBES ADHERED THERETO, ELECTRO-CONDUCTIVE YARN, FIBERS STRUCTURAL OBJECT, AND PRODUCTION PROCESSES THEREOF
    • 带有碳纳米管的电导体纤维,电导纱,纤维结构物体及其生产工艺
    • US20110151254A1
    • 2011-06-23
    • US13060596
    • 2009-08-31
    • Bunshi FugetsuEiji AkibaMasaaki Hachiya
    • Bunshi FugetsuEiji AkibaMasaaki Hachiya
    • D02G3/36B05D5/12B82Y40/00
    • D06M11/74D06M10/02D06M10/06D06M2200/00Y10T428/292
    • Electro-conductive fibers comprise synthetic fibers and an electro-conductive layer containing carbon nanotubes and covering a surface of the synthetic fibers, and the coverage of the electro-conductive layer relative to the whole surface of the synthetic fibers is not less than 60% (particularly not less than 90%). The electric resistance value of the electro-conductive fibers ranges from 1×10−2 to 1×1010 Ω/cm, and the standard deviation of the logarithm of the electric resistance value is less than 1.0. The thickness of the electro-conductive layer ranges from 0.1 to 5 μm, and the ratio of the carbon nanotubes may be 0.1 to 50 parts by mass relative to 100 parts by mass of the synthetic fibers. The electro-conductive layer may further contain a binder. The electro-conductive fibers may be produced by immersing the synthetic fibers in a dispersion with vibrating the synthetic fibers to form the electro-conductive layer adhered to the surface of the synthetic fibers. The electro-conductive fibers have the carbon nanotubes homogeneously and firmly adhered to an almost whole of a surface thereof and have an electro-conductivity and a softness.
    • 导电纤维包括合成纤维和含有碳纳米管的导电层并覆盖合成纤维的表面,并且导电层相对于合成纤维的整个表面的覆盖率不小于60%( 特别是不低于90%)。 导电性纤维的电阻值为1×10 -2〜1×10 10Ω·OHgr·/ cm,电阻值的对数的标准偏差小于1.0。 导电层的厚度为0.1〜5μm,相对于合成纤维100质量份,碳纳米管的比例可以为0.1〜50质量份。 导电层还可以含有粘合剂。 导电纤维可以通过将合成纤维浸入分散体中而使合成纤维振动而形成粘附在合成纤维表面上的导电层来制造。 导电纤维具有均匀且牢固地粘附到其几乎整个表面的碳纳米管,并且具有导电性和柔软性。