公开(公告)号：US11519103B2

公开(公告)日：2022-12-06

申请号：US16761453

申请日：2018-11-02

申请人： Reliance Industries Limited

发明人： Swanand Dilip Patil ,  Rupesh Arun Khare ,  Padmavathi Nandigam ,  Asmita Ashok Khanvilkar ,  Sreekumar Thaliyil Veedu

IPC分类号： D01F9/145 ,  D01F9/15 ,  C01B32/05 ,  D01D1/02 ,  D01F1/10 ,  D01F9/155 ,  C10C3/00

摘要： The present disclosure relates to a process for preparing carbon fibers. The process involves blending a carbon nano-material with a carbon material to obtain a homogenous blend, heating the homogenous blend to obtain mesophase pitch having particles with reduced mesophase sphere size followed by spinning the mesophase pitch to obtain the pitch fibers. The pitch fibers are then carbonized to obtain the carbon fibers. The carbon fibers prepared by the process of the present disclosure have improved tensile properties as compared to the conventional pitch based carbon fibers.

公开(公告)号：US11387458B2

公开(公告)日：2022-07-12

申请号：US16074216

申请日：2017-02-03

申请人： TEIJIN LIMITED

发明人： Kazuki Yachi ,  Asami Kanematsu ,  Shinya Komura ,  Takahiro Daido

IPC分类号： H01M4/62 ,  D01F9/145 ,  H01M10/0525

摘要： The present invention provides a carbon fiber aggregate that is characterized by comprising carbon fibers in which crystallite interplanar spacing (d002) measured using X-ray diffraction is 0.3400 nm or more, the average liber diameter being 10-900 nm, and the powder volume resistivity being 4.00×10−2 Ω·cm or less when the packing density is 0.8 g/cm3.

公开(公告)号：US10427349B2

公开(公告)日：2019-10-01

申请号：US15274280

申请日：2016-09-23

申请人： GM Global Technology Operations LLC

发明人： Hamid G. Kia ,  Selina X. Zhao

IPC分类号： B29B11/14 ,  D01F9/145 ,  B29B11/12 ,  B29C43/52 ,  B29C49/00 ,  D01F9/22 ,  B29C49/58 ,  B29K507/04 ,  B29L31/00 ,  B29C49/46 ,  B29K105/08 ,  B29K105/12 ,  B29C43/02 ,  B29C49/22 ,  B29C49/02

摘要： In various aspects, the present disclosure provides a structural component. The structural component includes a body defining at least one hollow region. The body includes a carbon fiber composite including a plurality of substantially aligned continuous carbon fibers. The plurality of substantially aligned carbon fibers defines a major axis and a second axis perpendicular to the major axis. The plurality of substantially aligned continuous carbon fibers includes a plurality of discrete termination points staggered with respect to the second axis. Methods of making such structural components, including by blow molding and compression molding are also provided.

公开(公告)号：US09732445B2

公开(公告)日：2017-08-15

申请号：US14640788

申请日：2015-03-06

申请人： UT-Battelle, LLC

发明人： Orlando Rios ,  Michael Alan McGuire ,  Karren Leslie More ,  Wyatt Evan Tenhaeff ,  Paul A. Menchhofer ,  Felix Leonard Paulauskas

IPC分类号： D01F9/20 ,  D01F9/14 ,  D01F1/10 ,  D01F9/145 ,  D01F9/15 ,  D01F9/16 ,  D01F9/22 ,  D01F9/21 ,  B29C44/46 ,  D01F9/12 ,  D01F9/155 ,  D01F9/17

CPC分类号： D01F9/14 ,  B29C44/464 ,  D01F1/10 ,  D01F9/12 ,  D01F9/145 ,  D01F9/15 ,  D01F9/155 ,  D01F9/16 ,  D01F9/17 ,  D01F9/20 ,  D01F9/21 ,  D01F9/22 ,  D01F9/225

摘要： A method for producing a carbon fiber, the method comprising: (i) subjecting a continuous carbon fiber precursor having a polymeric matrix in which strength-enhancing particles are incorporated to a stabilization process during which the carbon fiber precursor is heated to within a temperature range ranging from the glass transition temperature to no less than 20° C. below the glass transition temperature of the polymeric matrix, wherein the maximum temperature employed in the stabilization process is below 400° C., for a processing time within said temperature range of at least 1 hour in the presence of oxygen and in the presence of a magnetic field of at least 1 Tesla, while said carbon fiber precursor is held under an applied axial tension; and (ii) subjecting the stabilized carbon fiber precursor, following step (i), to a carbonization process. The stabilized carbon fiber precursor, resulting carbon fiber, and articles made thereof are also described.

公开(公告)号：US09688897B2

公开(公告)日：2017-06-27

申请号：US15337450

申请日：2016-10-28

申请人： NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

发明人： Kenji Hata ,  Seisuke Ata

IPC分类号： C09K5/14 ,  D01F9/145 ,  C08J5/00 ,  C08J5/04 ,  C08K3/04 ,  C08K7/06 ,  B82Y30/00

CPC分类号： C09K5/14 ,  B82Y30/00 ,  C08J5/005 ,  C08J5/042 ,  C08K3/04 ,  C08K3/041 ,  C08K7/06 ,  D01F9/145 ,  H01B1/24 ,  Y10S977/742 ,  C08L21/00 ,  C08L101/00

摘要： A CNT composite material includes a CNT group and carbon fibers dispersed in a matrix, the CNT composite material includes 0.01 wt % or more and 30 wt % or less of CNT aggregate. The CNT group includes a three dimensional network structure with a size of 10 μm or more and has a maximum distribution range of a differential pore volume of 0.01 μm or more and 10 μm or less in a range of 4 nm or more and 1000 μm or less of a pore diameter. The carbon fibers have a maximum distribution range of a differential pore volume of 1 μm or more and 100 μm or less in a range of 4 nm or more and 1000 μm or less of a pore diameter. A total specific surface area of the CNT aggregate and the carbon fibers is 10 m2/g or more and 500 m2/g or less.

公开(公告)号：US09376320B1

公开(公告)日：2016-06-28

申请号：US14566992

申请日：2014-12-11

申请人： Baker Hughes Incorporated

发明人： Corina L. Sandu

IPC分类号： D01F9/12 ,  D01F9/145 ,  C01B31/02

CPC分类号： C01B31/0226 ,  C01B32/16 ,  D01F9/127

摘要： A method for producing carbon nanotubes and/or fibers, such as carbon nano-tubes, involves sparging a gas (such as carbon dioxide) through a liquid hydrocarbon (such as crude oil) in the presence of an effective amount of magnesium oxide (MgO) particles (such as MgO nanoparticles having a size in the range from about 2 nm to about 10 microns, and which may have a bimodal particle size distribution) at a temperature in a range of between about 70 to about 90° C. to produce carbon nanotubes and fibers having a size range of from about 50 nm to about 20 microns.

摘要翻译： 碳纳米管等碳纳米管和/或纤维的制造方法，在有效量的氧化镁（MgO）的存在下，通过液态烃（如原油）喷射气体（如二氧化碳） ）颗粒（例如尺寸在约2nm至约10微米范围内的MgO纳米颗粒，并且其可具有双峰粒度分布）在约70至约90℃的温度范围内，以产生 碳纳米管和尺寸范围为约50nm至约20微米的纤维。

公开(公告)号：US20150284880A1

公开(公告)日：2015-10-08

申请号：US14440411

申请日：2013-11-05

申请人： GRAFTECH INTERNATIONAL HOLDINGS INC.

发明人： Bassam Alnasleh ,  Ching-Feng Chang ,  Omer Gul ,  Andrew Hausner ,  Robert Miller ,  Orest Adrianowycz

IPC分类号： D01F9/17 ,  D01F9/145

CPC分类号： D01F9/17 ,  C07G1/00 ,  C08H6/00 ,  C08L95/00 ,  C08L97/005 ,  D01F9/145

摘要： A method of making a carbon fiber comprising esterification of a lignin precursor with an acid, acid anhydride, or acyl halide, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue selected from the group of coal based raw material, petroleum based raw material and combinations thereof, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising esterification of a lignin with an acid derivative, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a pitch, thereby forming a fiber precursor mixture; and spinning the fiber precursor mixture into a fiber. A method of making a carbon fiber comprising lowering the Tg of a lignin material, thereby forming a reduced Tg lignin. Mixing the reduced Tg lignin with a carbon residue, thereby forming a fiber precursor mixture and spinning the fiber precursor mixture into a fiber.

摘要翻译： 一种制备碳纤维的方法，其包括用酸，酸酐或酰基卤酯化木质素前体，从而形成降低的Tg木质素。 将还原的Tg木质素与选自煤基原料，石油基原料及其组合的碳残渣混合，从而形成纤维前体混合物; 并将纤维前体混合物纺丝成纤维。 一种制备碳纤维的方法，其包括用酸衍生物酯化木质素，从而形成降低的Tg木质素。 将降低的Tg木质素与沥青混合，从而形成纤维前体混合物; 并将纤维前体混合物纺丝成纤维。 一种制造碳纤维的方法，包括降低木质素材料的Tg，从而形成降低的Tg木质素。 将还原的Tg木质素与碳残余物混合，从而形成纤维前体混合物并将纤维前体混合物纺丝成纤维。

公开(公告)号：US08885863B2

公开(公告)日：2014-11-11

申请号：US13321096

申请日：2010-05-17

申请人： Yuji Takashima ,  Hiroyuki Naono

发明人： Yuji Takashima ,  Hiroyuki Naono

IPC分类号： H04R1/20 ,  D01D5/247 ,  B01D53/28 ,  C01B31/08 ,  D01F9/24 ,  B82Y30/00 ,  D01F9/145 ,  C01B31/02 ,  B82Y40/00 ,  H04R1/28 ,  B01D53/26

CPC分类号： H04R1/2803 ,  B01D53/261 ,  B01D53/28 ,  B01D2253/102 ,  B01D2253/308 ,  B01D2253/311 ,  B01D2257/80 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/022 ,  C01B31/08 ,  C01B31/083 ,  C01B32/158 ,  C01B32/30 ,  C01B32/354 ,  D01D5/247 ,  D01F9/145 ,  D01F9/24 ,  H04R1/2819 ,  H04R2499/13 ,  H04R2499/15

摘要： An object of the present invention is to provide a loudspeaker device which has a high moisture resistance and can further widens an audio range of low-frequency range sounds. To achieve the above object, a closed box loudspeaker device of the present invention includes a loudspeaker unit which is attached to an opening in a box and activated carbon fiber which is provided in the box to adsorb gas. The activated carbon fiber has plural pores, which are exposed on a surface of the activated carbon fiber and have a diameter of 2.0 nm or less, and a volume of the pores having the diameter of 2.0 nm or less occupies 60% or more of a volume of the entire pores, so that the loudspeaker device which simultaneously achieves both an enhancement of the moisture resistance and the widening of the audio range of the low-frequency range sounds can be provided.

摘要翻译： 本发明的目的是提供一种扬声器装置，该扬声器装置具有高的耐湿性，并能进一步加宽低频范围声音的音频范围。 为了实现上述目的，本发明的封闭式扬声器装置包括一个扬声器单元，该扬声器单元附着在箱体中的一个开口处，并且设置在箱体中以吸附气体的活性碳纤维。 活性碳纤维具有多个孔，其暴露在活性碳纤维的表面上，直径为2.0nm以下，直径2.0nm以下的孔的体积占有率为60％以上的孔 可以提供整个孔的体积，从而可以提供同时实现低频范围声音的防潮性和音频范围扩大的扬声器装置。

公开(公告)号：US6123829A

公开(公告)日：2000-09-26

申请号：US52764

申请日：1998-03-31

申请人： Andrea K. Zimmerman ,  John A. Rodgers ,  H. Ernest Romine ,  James R. McConaghy ,  Lorita Davis

发明人： Andrea K. Zimmerman ,  John A. Rodgers ,  H. Ernest Romine ,  James R. McConaghy ,  Lorita Davis

IPC分类号： C10C3/00 ,  D01F9/145 ,  C10C1/20 ,  D01F9/12

CPC分类号： C10C3/00 ,  D01F9/145

摘要： The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber which has an oxygen diffusion rate to the center of the fiber which is competitive with the rate of oxidation at the fiber's surface. Further, the present invention provides a high density pitch fiber batt which thermosets without loss of fiber structure.

公开(公告)号：US6120894A

公开(公告)日：2000-09-19

申请号：US678047

申请日：1996-07-10

申请人： Iwao Yamamoto ,  Akihiko Yoshiya ,  Tadahiro Nishimoto

发明人： Iwao Yamamoto ,  Akihiko Yoshiya ,  Tadahiro Nishimoto

IPC分类号： D01F9/145 ,  D01F9/16 ,  D01F9/21 ,  D01F9/22 ,  D01F11/14 ,  D02G3/00

CPC分类号： D01F9/22 ,  D01F11/14 ,  D01F9/145 ,  D01F9/16 ,  D01F9/21 ,  Y10T428/2907 ,  Y10T428/2918 ,  Y10T428/292 ,  Y10T428/2933 ,  Y10T428/2938

摘要： A short carbon fiber bundling mass is disclosed, which can provide a high-modulus fiber-reinforced resin composition and comprises short carbon fibers bundled by using a sizing agent and heated to a maximum temperature ranging from 1,600.degree. C. to 3,300.degree. C. in an inert gas atmosphere so as to be graphitized.

摘要翻译： 公开了一种短碳纤维束缚体，其可以提供高模量纤维增强树脂组合物，并且包括通过使用施胶剂捆扎的短碳纤维并加热至1600℃至3300℃的最高温度 惰性气体气氛进行石墨化。