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  • 专利标题:   Carbon nanotube powder, useful e.g. as additives for rubber and ceramics and as conductive additives in electrodes and solar cells, comprises carbon nanotubes, which consist of graphite layers that are made of graphene layers.
  • 专利号:   DE102007044031-A1, WO2009036877-A2, US2009124705-A1, WO2009036877-A3, WO2009036877-A8, EP2190443-A2, KR2010058544-A, CN101801394-A, IN201001776-P1, JP2010538953-W, TW200932673-A, EP2190443-B1, DE502008003302-G, RU2010114517-A, US8398949-B2, ES2364305-T3, CN101801394-B, JP5430571-B2, KR1500787-B1
  • 发明人:   BRAMERWEGER E, BUCHHOLZ S, HOCKE H, MEYER H, MLECZKO L, RUDOLF R, SCHMID M, VOETZ M, WEBER R, WOLF A, BEURAMEOBEGEO E, BUHIHOLCHEU J, HOKE H, MEULREKCHEUKO R, POECHEU M, RUDOLPH R, SCHMIDT M, MAYER H, WERTS M, MERWEGER E, SHMID M, HOKKE H, BRAMER V E, FYOTC M, BUHHOLC Z, BRAMER W E, SCHMITT M
  • 专利权人:   BAYER MATERIALSCIENCE AG, BAYER MATERIALSCIENCE AG, BAYER MATERIALSCIENCE AG, BAYER MATERIALSCIENCE AG, BAYER MATERIALSCIENCE AG
  • 国际专利分类:   A61K033/44, B01J032/00, B82B001/00, B82B003/00, C08K003/04, C01B031/02, A61K047/04, B01J020/20, B32B009/04, B01J023/889, B01J037/03, C01B031/04, D01F009/12, D01F009/127
  • 专利详细信息:   DE102007044031-A1 19 Mar 2009 B82B-001/00 200926 Pages: 15 German
  • 申请详细信息:   DE102007044031-A1 DE10044031 14 Sep 2007
  • 优先权号:   DE10044031, KR705514

▎ 摘　　要

NOVELTY - Carbon nanotube powder comprises carbon nanotubes, which: consist of one or more graphite layers that are made of two or more graphene layers, which are arranged one above the other; and form a rolled structure, where the carbon nanotubes exhibit a spiral shaped graphite layers arranged in cross-sections, where the average diameter of the carbon nanotubes is 3-100 nm, preferably 5-30 nm. USE - The carbon nanotubes are useful: as additives for polymers, rubbers, ceramics, metals, alloys, glasses, textiles and composite materials; as conductive additives in electrodes, solar cells, actuators, sensors, inks or pastes and in energy storage, preferably in batteries, accumulators, fuel cells or condensators; as substrate for pharmaceutical active materials or for plant protective active materials; as absorber preferably for volatile compounds, e.g. for gases or for biological compounds e.g. for enzymes; and as substrate for catalyst (all claimed). ADVANTAGE - The carbon nanotubes show the characteristics of the well known multi-walled carbon nanotubes. The carbon nanotube material exhibits a high purity in relation to the metallic impurities and amorphous carbon. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) carbon nanotubes having the same characteristics as mentioned above; and (2) production of the carbon nanotube powder, comprising catalytically disintegrating hydrocarbon having 1-3 carbon atoms, with a heterogeneous catalyst at 500-1000 degrees C, preferably 600-800 degrees C in a reactor comprising a moving bed, where: the catalyst is a transition metal catalyst based on cobalt and manganese with a cobalt portion of 40-60 mol.% and a manganese portion of 40-60 mol.% relative to the sum of cobalt and manganese; the average retention time of the catalyst in the reaction zone is maximum one hour; and the hydrocarbon is reacted individually or as mixture, together with inert gas, preferably nitrogen or inert gas. DESCRIPTION OF DRAWING(S) - The figure shows a cross-sectional view of a multi-walled cylindrical carbon tubes.