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1. 发明授权

US5374415A Method for forming carbon fibers 失效
标题翻译：形成碳纤维的方法
公开(公告)号：US5374415A
公开(公告)日：1994-12-20
申请号：US13266
申请日：1993-02-03
申请人： Robert L. Alig , Gary G. Tibbetts , Daniel W. Gorkiewicz
发明人： Robert L. Alig , Gary G. Tibbetts , Daniel W. Gorkiewicz
IPC分类号： D01F9/127 , D01F9/133
CPC分类号： B82Y30/00 , D01F9/1272 , D01F9/133
摘要： In a preferred embodiment, an apparatus and method for forming carbon fibers in a gas phase reaction is disclosed wherein a reactor defines a reaction chamber with a closed end and an outlet, and a reactant feed tube which extends generally axially therewithin. Gaseous reactants are injected into the reactor through an opening of the feed tube. Preferred reactants include methane, natural gas, hydrogen sulfide, ammonia, and an iron-containing compound dispersed in a carrier gas. The apparatus includes purge means for intermittently and forcibly moving any fibers clogging the reactor out of the reactor; and means for intermittently oxidizing carbonaceous material in the reactor. In use, a period of fiber formation is followed by one or more purge steps to essentially cleanse the reactor.
摘要翻译：在优选的实施方案中，公开了一种用于在气相反应中形成碳纤维的装置和方法，其中反应器限定具有封闭端和出口的反应室，以及在其中大致轴向延伸的反应物进料管。气态反应物通过进料管的开口注入反应器。优选的反应物包括甲烷，天然气，硫化氢，氨和分散在载气中的含铁化合物。该装置包括用于间歇地强制地将任何阻塞反应器的纤维移出反应器的吹扫装置; 以及用于在反应器中间歇地氧化含碳材料的装置。在使用中，一段纤维形成之后是一个或多个吹扫步骤以基本上清洁反应器。

2. 发明授权

US5413773A Method for forming carbon filters 失效
标题翻译：形成碳过滤器的方法
公开(公告)号：US5413773A
公开(公告)日：1995-05-09
申请号：US82530
申请日：1993-06-28
申请人： Gary G. Tibbetts , Daniel W. Gorkiewicz , Robert L. Alig
发明人： Gary G. Tibbetts , Daniel W. Gorkiewicz , Robert L. Alig
IPC分类号： B01J12/02 , B01J19/24 , D01F9/133 , D01F9/127
CPC分类号： B01J19/2415 , B01J12/02 , D01F9/133 , B01J2219/00155 , B01J2219/00159 , B01J2219/00162 , B01J2219/00164 , B01J2219/00173
摘要： In a preferred embodiment, an apparatus and method for forming carbon fibers in a gas phase reaction is disclosed wherein a reactor defines a reaction chamber with a closed end and an outlet and a reactant feed tube which extends generally axially therewithin. Gaseous reactants are injected into the reactor through an opening of the feed tube. The feed tube and chamber are constructed and arranged to define a passageway which is a gas flow path. The reactor includes purge means for intermittently and forcibly moving any fibers clogging the passageway out of the reactor, and means for intermittently oxidizing carbonaceous material in the passageway of the reactor. In use, a period of fiber formation is followed by a forced purge. Periodically, an oxidation purge is used to essentially cleanse the reactor.
摘要翻译：在优选的实施方案中，公开了一种用于在气相反应中形成碳纤维的装置和方法，其中反应器限定具有封闭端和出口的反应室以及大致轴向延伸的反应物进料管。气态反应物通过进料管的开口注入反应器。进料管和室被构造和布置成限定作为气体流路的通道。反应器包括用于间歇地强制地移动任何阻塞通道离开反应器的纤维的净化装置，以及在反应器的通道中间歇地氧化含碳材料的装置。在使用中，纤维形成的一段时间之后是强制吹扫。周期性地使用氧化吹扫来基本上清洁反应器。

3. 发明授权

US5846509A Method of producing vapor grown carbon fibers using coal 失效
标题翻译：使用煤生产气相生长碳纤维的方法
公开(公告)号：US5846509A
公开(公告)日：1998-12-08
申请号：US526169
申请日：1995-09-11
申请人： Robert L. Alig , David J. Burton
发明人： Robert L. Alig , David J. Burton
IPC分类号： D01F9/127 , D01F9/12
CPC分类号： B82Y30/00 , D01F9/1272
摘要： A method of producing vapor grown carbon fibers is provided in which coal is utilized as a source of an iron catalyst, as a source of hydrocarbon and sulfur, or both. The method includes the steps of introducing pulverized coal into a furnace containing a gas selected from the group consisting of hydrogen, hydrocarbon, nitrogen, ammonia, helium, or mixtures thereof, and maintaining the gas at a temperature from about 1000.degree.-1175.degree. C. to form the fibers. The coal has a sulfur content of from 1 to 6% by weight and may comprise high volatile bituminous coal. The use of coal to produce vapor grown carbon fibers provides a significant cost advantage over other starting materials and also provides an environmentally safe use for high sulfur content coal.
摘要翻译：提供了生产气相生长碳纤维的方法，其中使用煤作为铁催化剂的来源，作为烃和硫的来源，或两者。该方法包括以下步骤：将粉煤引入含有选自氢，烃，氮，氨，氦或其混合物的气体的炉中，并将气体保持在约1000-111℃的温度形成纤维。煤的硫含量为1至6重量％，可包含高挥发性烟煤。使用煤来生产气相生长碳纤维比其他起始材料具有显着的成本优势，并且还为高硫含量煤提供了环境安全的用途。

4. 发明授权

US5594060A Vapor grown carbon fibers with increased bulk density and method for making same 失效
标题翻译：具有增加体积密度的气相生长碳纤维及其制造方法
公开(公告)号：US5594060A
公开(公告)日：1997-01-14
申请号：US480246
申请日：1995-06-07
申请人： Robert L. Alig , Jason R. Guth , David J. Burton
发明人： Robert L. Alig , Jason R. Guth , David J. Burton
IPC分类号： C08K7/06 , D01F11/14 , C08K3/04 , B32B5/16
CPC分类号： D01F11/14 , C08K7/06
摘要： Carbon fiber with increased bulk density comprising vapor grown carbon fiber is provided. The preferred method of increasing the carbon fiber bulk density comprises mixing a vapor grown carbon fiber with a diameter of less than about 1 .mu.m and an initial bulk density of less than about 0.2 lb/ft.sup.3 with an aqueous-based solution, blending the mixture under high shear conditions, and drying the blended mixture. Upon drying, the mixture forms a carbon fiber mass with an increased bulk density having a final bulk density of at least about 3 lb/ft.sup.3. The increased bulk density carbon fiber pellets are ideally suited for use as reinforcing materials in rubber, plastic and the like. Preferably, the aqueous-based solution is a latex containing solution and latex is deposited on the fibers.
摘要翻译：提供了包含气相生长碳纤维的具有增加的堆积密度的碳纤维。增加碳纤维堆积密度的优选方法包括用水基溶液混合直径小于约1μm的初始堆积密度的小于或等于约0.2lb / ft 3的气相生长碳纤维，将混合物在高剪切条件下干燥混合的混合物。干燥后，混合物形成具有至少约3lb / ft 3的最终堆积密度的堆积密度增加的碳纤维块。增加堆积密度的碳纤维颗粒理想地适合用作橡胶，塑料等中的增强材料。优选地，水基溶液是含乳胶的溶液，并且胶乳沉积在纤维上。

5. 发明授权

US5433906A Composite of small carbon fibers and thermoplastics and method for making same 失效
标题翻译：小碳纤维和热塑性塑料的复合材料及其制造方法
公开(公告)号：US5433906A
公开(公告)日：1995-07-18
申请号：US88027
申请日：1993-07-09
申请人： Cameron J. Dasch , Robert L. Alig
发明人： Cameron J. Dasch , Robert L. Alig
IPC分类号： B29B9/08 , B29B9/12 , B29B9/14
CPC分类号： B29B9/08 , Y10S264/57 , Y10T428/2982 , Y10T428/31
摘要： A method is provided for forming a composite material and article using nanometer-size vapor grown carbon fibers. The preferred carbon fibers are characterized by diameters of substantially less than about one micrometer, and more typically less than about 0.2 micrometers, and are of the type formed by a continuous gas phase reaction. The polymeric matrix of the composite material is formed from a thermoplastic resin having a surface tension which is sufficiently low, so as to promote wetting of the surfaces of the nanometer-size carbon fibers. The thermoplastic resin is mixed with the carbon fibers and a solvent so as to granularize the mixture and thereby facilitate subsequent handling and mixing of the carbon fibers. Final mixing occurs at temperatures near the melting point of the thermoplastic resin and for a duration which is sufficient to ensure that the carbon fibers are adequately wetted by the thermoplastic resin, so as to provide adhesion between the fibers and the thermoplastic. The composite material is characterized by improved strength and stiffness.
摘要翻译：提供了一种使用纳米级气相生长碳纤维形成复合材料和制品的方法。优选的碳纤维的特征在于直径基本上小于约一微米，更通常小于约0.2微米，并且是通过连续气相反应形成的类型。复合材料的聚合物基体由具有足够低的表面张力的热塑性树脂形成，以促进纳米级碳纤维表面的润湿。将热塑性树脂与碳纤维和溶剂混合以使混合物粒化，从而便于后续的碳纤维的处理和混合。最终混合发生在接近热塑性树脂熔点的温度下，持续时间足以确保碳纤维被热塑性树脂充分润湿，从而在纤维和热塑性塑料之间提供粘合。复合材料的特点是强度和刚度提高。

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