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22 条记录 (耗时 0.013 秒)

    METHOD FOR THE PREPARATION OF HIGH PURITY CARBON NANOTUBES USING WATER
    2.
    发明公开
    METHOD FOR THE PREPARATION OF HIGH PURITY CARBON NANOTUBES USING WATER 审中-公开
    过程高纯碳的制备纳米TUBES使用水

    公开(公告)号：EP1697257A1

    公开(公告)日：2006-09-06

    申请号：EP04808246.5

    申请日：2004-11-29

    申请人： KH Chemicals Co., Ltd.

    发明人： KIM, Young Nam

    IPC分类号： B82B3/00

    CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B2202/30 ,  C01B2202/36

    摘要： The present invention provides a method for preparing high purity carbon nanotubes, in which, when carbon nanotubes are prepared by the recombination of carbons generated from a carbon source in the presence or absence of a catalyst as in arc-discharge, laser ablation, chemical vapor deposition or vapor phase continuous growth method, and the like, water of 1 to 2000 wt% based on a carbon source is added in the reaction system to prepare high purity carbon nanotubes. According to the present invention, the addition of water in the reaction system suppresses the soot formation resulting from the pyrolysis of a carbon source itself and induces the oxidation or reduction of the formed soot by water, and thereby high purity carbon nanotubes can be prepared economically and easily.

    ACOUSTIC DIAPHRAGM AND SPEAKERS HAVING THE SAME
    4.
    发明公开
    ACOUSTIC DIAPHRAGM AND SPEAKERS HAVING THE SAME 审中-公开
    声学隔膜和喇叭，

    公开(公告)号：EP1949752A1

    公开(公告)日：2008-07-30

    申请号：EP06799217.2

    申请日：2006-10-13

    申请人： KH Chemicals Co., Ltd.

    发明人： BYON, Gi-Man ,  KIM, Young-Nam

    IPC分类号： H04R7/02

    CPC分类号： H04R7/02 ,  H04R11/02 ,  H04R17/00 ,  H04R31/003

    摘要： Disclosed herein is an acoustic diaphragm for converting electrical signals into mechanical signals to produce sounds. The acoustic diaphragm comprises carbon nanotubes or graphite nanofibers as reinforcing agents. Preferably, the carbon nanotubes or graphite nanofibers are included or dispersed in the acoustic diaphragm or coated on the surface of the acoustic diaphragm. Since the acoustic diaphragm has excellent physical properties in terms of elastic modulus, internal loss, strength and density, it can effectively achieve superior sound quality and a high output in a particular frequency band as well as in a broad frequency band.

    A METHOD FOR THE PREPARATION OF Y-BRANCHED CARBON NANOTUBES
    6.
    发明公开
    A METHOD FOR THE PREPARATION OF Y-BRANCHED CARBON NANOTUBES 审中-公开
    用于生产Y型树枝状碳纳米管

    公开(公告)号：EP1720796A1

    公开(公告)日：2006-11-15

    申请号：EP05726365.9

    申请日：2005-02-04

    申请人： KH Chemicals Co., Ltd.

    发明人： KIM, Young Nam

    IPC分类号： B82B3/00

    CPC分类号： B82B3/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/158 ,  C01B32/162 ,  C01B2202/00 ,  C01B2202/06

    摘要： The present invention provides a process for preparing Y-branched carbon nanotubes and the product thereby, Y-branched carbon nanotubes. More specifically, the present invention provides a process for preparing Y-branched carbon nanotubes, comprising: loading a catalyst on a carbon nanotube carrier; pre-treating the catalyst-loaded carbon nanotubes to have the catalyst bonded tightly to the surface of carbon nanotubes; and performing a synthetic reaction of carbon nanotubes using the obtained catalyst-loaded carbon nanotubes. According to the process of the present invention, Y-branched carbon nanotubes having at least one or more Y-junctions in various shapes can be prepared easily, simply and in bulk by utilizing the conventional facilities under the usual condition of process. Thus, the invention is promising industrially. The Y-branched carbon nanotubes of the invention hold great potential in regard of materials for electrodes, reinforcing agents for polymers, transistors and electrochemical products.

    Catalyst for purification of diesel engine exhaust gas
    8.
    发明公开
    Catalyst for purification of diesel engine exhaust gas 审中-公开
    Katalysatorfürdie Abgasreinigung eines Dieselmotors

    公开(公告)号：EP1974811A1

    公开(公告)日：2008-10-01

    申请号：EP08009615.9

    申请日：2001-05-22

    申请人： KH Chemicals Co., Ltd.

    发明人： Rhee, Young Woo

    IPC分类号： B01J27/053 ,  B01J23/652 ,  B01D53/94 ,  B01J21/06

    CPC分类号： B01D53/945 ,  B01D2255/1021 ,  B01D2255/40 ,  B01D2257/404 ,  B01D2257/50 ,  B01D2257/702 ,  B01J23/6527 ,  B01J27/053 ,  B01J37/036 ,  Y02T10/22

    摘要： This invention provides a new catalyst for purification of diesel engine exhaust gas comprising a carrier of at least one sulfur-resistant refractory oxide and at least one catalytic metal, wherein at least one solid acid or sulfuric acid is carried on the carrier by adding at least one precursor of said solid acid and/or sulfuric acid during the preparation of the carrier, and preparation thereof. The catalyst of this invention is thermally and chemically durable and can effectively remove particulate matters, hydrocarbons and nitrogen oxides contained in the diesel engine exhaust gas at low temperatures.

    摘要翻译： 本发明提供了一种用于净化柴油发动机废气的新催化剂，其包括至少一种耐硫耐火氧化物和至少一种催化金属的载体，其中至少一种固体酸或硫酸通过加入至少 在制备载体期间所述固体酸和/或硫酸的一种前体及其制备。 本发明的催化剂具有耐热和耐化学性能，并且能够有效地去除低温下柴油发动机废气中所含的颗粒物质，烃类和氮氧化物。

    PREPARATION OF CARBON NANOTUBES
    9.
    发明授权
    PREPARATION OF CARBON NANOTUBES 有权
    制造碳纳米管

    公开(公告)号：EP1334064B1

    公开(公告)日：2008-09-24

    申请号：EP01974900.1

    申请日：2001-09-06

    申请人： KH Chemicals Co., Ltd.

    发明人： KIM, YOUNG NAM

    IPC分类号： C01B31/02

    CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/133 ,  C01P2004/64 ,  Y10S977/843

    摘要： The present invention is to provide a process for the preparation of carbon nanotubes or nanofibers, which comprises introducing in a gaseous phase a colloidal solution of matal nanoparticles optionally containing a surfactant together with an optional carbon source into a heated reactor, and carbon nanotubes or nanofibers thus prepared. According to the present invention, the shape and structure of carbon nanotubes or nanofibers can be easily controlled, the carbon nanotubes or nanofibers can be continuously produce on a large scale, the apparatus and the process for the preparation of nanotubes or nanofibers are simplified, and carbon nanotubes or nanofibers having various shapes, structures and properties can be easily and cheaply prepared. Further, the process of the present invention is highly reproducible and favorable in industry.

    ACOUSTIC DIAPHRAGM AND SPEAKER HAVING THE SAME
    10.
    发明公开
    ACOUSTIC DIAPHRAGM AND SPEAKER HAVING THE SAME 审中-公开
    声学隔膜和扬声器相同

    公开(公告)号：EP1952666A1

    公开(公告)日：2008-08-06

    申请号：EP06812294.4

    申请日：2006-10-30

    申请人： KH Chemicals Co., Ltd.

    发明人： KIM, Young-Nam

    IPC分类号： H04R7/02

    CPC分类号： H04R7/02 ,  H04R2307/025 ,  H04R2307/027 ,  H04R2307/029

    摘要： Disclosed herein is an acoustic diaphragm for converting electrical signals into mechanical signals to produce sounds. The acoustic diaphragm comprises carbon nanotubes or graphite nanofibers as major materials. Preferably, the carbon nanotubes or graphite nanofibers are included or dispersed in the acoustic diaphragm. Since the acoustic diaphragm has excellent physical properties in terms of elastic modulus, internal loss and strength, it can effectively achieve superior sound quality and high output in a particular frequency band as well as in a broad frequency band.

    摘要翻译： 本文公开了一种用于将电信号转换成机械信号以产生声音的声学膜片。 声学隔膜包括碳纳米管或石墨纳米纤维作为主要材料。 优选地，碳纳米管或石墨纳米纤维被包含或分散在声学隔膜中。 由于声学膜片在弹性模量，内部损耗和强度方面具有优异的物理性能，因此它可以有效地在特定频带以及宽频带内实现优异的音质和高输出。