公开(公告)号：US20240337048A1

公开(公告)日：2024-10-10

申请号：US18681673

申请日：2022-08-18

申请人： TORAY INDUSTRIES, INC.

发明人： Yuki SUGA ,  Fumihiko TANAKA ,  Jun WATANABE

IPC分类号： D01F9/22

CPC分类号： D01F9/22 ,  D10B2101/12 ,  D10B2401/063

摘要： According to the present invention, a carbon fiber composite material, which has excellent energy absorption and is composed of a carbon fiber having high strength and high elongation, is provided by a production method yielding an excellent production amount. This carbon fiber bundle having a plurality of single fibers has a strand elastic modulus of 260-350 GPa, a strength of 6.5-8.5 GPa, an elongation of at least 1.8%, a filament number of 1,000-9,000, and a total fineness of 0.15-0.35 g/m, wherein the average value of major axis/minor axis ratios in single fiber cross sections is 1.01-1.08, the coefficient of variation is 1-4%, and the skewness is 0.3-1.2.

公开(公告)号：US20240301591A1

公开(公告)日：2024-09-12

申请号：US18562471

申请日：2022-05-23

申请人： UNIVERSITY OF MARYLAND, COLLEGE PARK ,  GEORGIA TECH RESEARCH CORPORATION ,  The Johns Hopkins University

发明人： Liangbing HU ,  Qi DONG ,  Tangyuan LI ,  Pedro ARIAS-MONJE ,  Bodiuzzaman JONY ,  Kishor GUPTA ,  Satish KUMAR ,  Chao WANG ,  Pengfei XIE ,  Canhui WANG

IPC分类号： D01F9/22 ,  D01D5/06 ,  D01D5/14 ,  D01F9/32

CPC分类号： D01F9/22 ,  D01D5/06 ,  D01D5/14 ,  D01F9/328 ,  D10B2101/12

摘要： A carbon material can comprise a porous scaffold of carbon fibrils and particles of carbon black attached to the carbon fibrils. The carbon material can be provided in an atmosphere of a gas comprising one or more organic compounds, for example, methane. The carbon material and the gas can be subjected to a temperature (e.g., 1700 K) that causes the organic compound(s) to undergo pyrolysis to form carbon and hydrogen. For example, the carbon material can be used as a Joule heating element to heat the material and the gas to the pyrolysis temperature. At least some of the formed carbon can be deposited on or within the carbon material. As a result, the carbon fibrils in the material can merge to form a carbonized matrix, and the carbon black particles can become embedded within the carbonized matrix.

公开(公告)号：US12006594B2

公开(公告)日：2024-06-11

申请号：US18217822

申请日：2023-07-03

申请人： Board of Regents, The University of Texas System ,  Korea Institute of Carbon Convergence Technology

发明人： Min Hye Jung ,  Hyun Kyu Shin ,  Kyu Soon Park ,  Duck Joo Yang ,  Benjamin Batchelor ,  Samsuddin Mahmood

IPC分类号： C08F220/14 ,  C01B32/05 ,  C08F220/44 ,  C08F220/48 ,  D01D5/08 ,  D01F6/38 ,  D01F9/22 ,  C08F220/46

CPC分类号： D01F6/38 ,  C01B32/05 ,  C08F220/14 ,  C08F220/44 ,  C08F220/48 ,  D01D5/08 ,  D01F9/22 ,  C08F220/46

摘要： A quad-polymer composition includes monomers of (a) acrylonitrile, (a) vinylimidazole, (c) methyl acrylate and (d) either acrylic acid or itaconic acid. Such quad-polymer compositions may be used to form fibers (such as by melt spinning) that may then be annealed, stabilized, and/or carbonized to produce carbon fibers. The quad-polymer composition may be used for supercapacitors, lithium battery electrodes once carbonized, and as synthesized, it may be used for wound healing fibers, fabrics, coatings, and films, and anti-bacterial/anti-microbial fibers, fabrics, coatings and films. The carbon fibers formed from the quad-polymer composition may be used for the fiber composites for automobile, aerospace structures, marine structures, military equipment/parts, sporting goods, robotics, furniture, and electronic parts.

公开(公告)号：US11970791B2

公开(公告)日：2024-04-30

申请号：US17098688

申请日：2020-11-16

申请人： Mitsubishi Chemical Corporation

发明人： Takayuki Kiriyama ,  Naoki Sugiura ,  Masahiro Hata

IPC分类号： D01F9/22 ,  C08K7/06 ,  D01F6/18 ,  D01F6/38

CPC分类号： D01F9/22 ,  C08K7/06 ,  D01F6/18 ,  D01F6/38 ,  D01F9/225 ,  D10B2101/12 ,  Y10T428/2918

摘要： Provided are carbon fiber bundles which have high knot strength even if the single fiber fineness is large, and which have excellent handling properties and processability. The carbon fiber bundles have a single fiber fineness of 0.8-2.5 dtex, knot strength of 298 N/mm2 or greater. This method of producing carbon fibers having knot strength of 298 N/mm2 or greater involves a heat treatment step for heat treating, for 50-150 minutes, specific polyacrylonitrile-based precursor fiber bundles described in the description in an oxidizing atmosphere rising in temperature in the temperature range of 220-300° C.

公开(公告)号：US11959197B2

公开(公告)日：2024-04-16

申请号：US16541352

申请日：2019-08-15

申请人： Mitsubishi Chemical Corporation

发明人： Naomasa Matsuyama ,  Yuutarou Nakamura ,  Norifumi Hirota ,  Hiroko Matsumura ,  Katsuhiko Ikeda ,  Kouki Wakabayashi ,  Tadashi Ootani ,  Akihiro Itou ,  Kenji Hirano ,  Akito Hatayama ,  Kenji Kaneta ,  Atsushi Nakajima

IPC分类号： D01F9/22 ,  D01D5/00 ,  D01F6/18

CPC分类号： D01F9/22 ,  D01D5/0046 ,  D01F6/18 ,  D10B2101/12 ,  D10B2401/061

摘要： A first aspect of the present invention is carbon fiber wherein the surface of a monofilament has a center line average roughness Ra of 6.0 nm or more and 13 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. A second aspect of the present invention is carbon fiber precursor acrylic fiber wherein the surface of a monofilament has a center line average roughness Ra of 18 nm or more and 27 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The carbon fiber according to the first aspect is obtained by stabilizing and carbonizing under specific conditions the carbon fiber precursor acrylic fiber according to the second aspect.

公开(公告)号：US11898276B2

公开(公告)日：2024-02-13

申请号：US17827565

申请日：2022-05-27

申请人： FORMOSA PLASTICS CORPORATION

发明人： Kun-Yeh Tsai ,  Chia-Chi Hung ,  Wen-Ju Chou ,  Ching-Wen Chen ,  Chia-Chun Hsieh ,  Shi-Jie Lin ,  Long-Tyan Hwang

IPC分类号： D01D5/12 ,  D01D5/14 ,  D01D10/02 ,  D02J1/22 ,  D02J13/00 ,  D06B1/00 ,  D06B3/04 ,  D06M15/643 ,  D06M15/70 ,  D01F9/22 ,  D01D5/06 ,  D06M101/28

CPC分类号： D01F9/22 ,  D01D5/06 ,  D02J1/223 ,  D02J1/228 ,  D02J13/005 ,  D06M15/6436 ,  D06M2101/28 ,  D06M2200/40 ,  D10B2101/12

摘要： Carbon fiber and method of forming the same are provided. The method modifies proportion of a finishing oil to control a relation between a surface tension and a particle size of the finishing oil, and thus penetration of the finishing oil into an interior of the carbon fiber is avoided. Therefore, the carbon fiber can have both low oil residues and a high strength.

公开(公告)号：US20240018695A1

公开(公告)日：2024-01-18

申请号：US18471852

申请日：2023-09-21

申请人： Mitsubishi Chemical Corporation

发明人： Yutaro NAKAMURA ,  Kyu OTA

IPC分类号： D01F9/22

CPC分类号： D01F9/22 ,  D10B2101/12

摘要： A carbon fiber bundle may have a total fineness of 2 g/m or more and a variation rate of a thickness of the fiber bundle of 30% or less in a width direction of the fiber bundle. A manufacturing method of a carbon fiber bundle may include applying a sizing agent to the carbonized fiber bundle, drying the carbonized fiber bundle, then passing the carbonized fiber bundle such that one surface of the carbonized fiber bundle in the width direction and one opposite surface thereof are alternately brought into contact with two or more parallel rods, and winding the carbonized fiber bundle on a bobbin.

公开(公告)号：US11692285B2

公开(公告)日：2023-07-04

申请号：US16611214

申请日：2018-05-09

申请人： KOREA INSTITUTE OF CARBON CONVERGENCE TECHNOLOGY ,  THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM

发明人： Min Hye Jung ,  Hyun Kyu Shin ,  Kyu Soon Park ,  Duck Joo Yang ,  Benjamin Batchelor ,  Samsuddin Mahmood

IPC分类号： C08F220/44 ,  C08F220/14 ,  C08F226/06 ,  C08F220/06 ,  D01F6/38 ,  C01B32/05 ,  C08F220/48 ,  D01D5/08 ,  D01F9/22 ,  C08F220/46

CPC分类号： D01F6/38 ,  C01B32/05 ,  C08F220/14 ,  C08F220/44 ,  C08F220/48 ,  D01D5/08 ,  D01F9/22 ,  C08F220/46

摘要： A quad-polymer composition includes monomers of (a) acrylonitrile, (a) vinylimidazole, (c) methyl acrylate and (d) either acrylic acid or itaconic acid. Such quad-polymer compositions may be used to form fibers (such as by melt spinning) that may then be annealed, stabilized, and/or carbonized to produce carbon fibers. The quad-polymer composition may be used for supercapacitors, lithium battery electrodes once carbonized, and as synthesized, it may be used for wound healing fibers, fabrics, coatings, and films, and anti-bacterial/anti-microbial fibers, fabrics, coatings and films. The carbon fibers formed from the quad-polymer composition may be used for the fiber composites for automobile, aerospace structures, marine structures, military equipment/parts, sporting goods, robotics, furniture, and electronic parts.

公开(公告)号：US11649567B2

公开(公告)日：2023-05-16

申请号：US16099707

申请日：2016-05-11

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.

发明人： André Lehmann ,  Evgueni Tarkhanov

IPC分类号： D01F9/22 ,  D01D5/098 ,  D01F6/38 ,  D01D5/088 ,  D01D5/08

CPC分类号： D01F9/22 ,  D01D5/098 ,  D01F6/38 ,  D01D5/08 ,  D01D5/088

摘要： The present invention relates to a method for producing a multifilament yarn from a melt of a copolymer of polyacrylicnitrile. The method is characterized in that a multifilament yarn is produced by means of pressing a melt of a copolymer through a spinning nozzle and is subsequently stretched at least tenfold. The present invention further relates to a correspondingly produced multifilament yarn.

公开(公告)号：US11643756B1

公开(公告)日：2023-05-09

申请号：US17809059

申请日：2022-06-27

申请人： Arvind Agarwal ,  Ambreen Nisar ,  Lihua Lou ,  Benjamin Peter Boesl

发明人： Arvind Agarwal ,  Ambreen Nisar ,  Lihua Lou ,  Benjamin Peter Boesl

IPC分类号： C08J3/21 ,  C08K3/11 ,  C08K3/14 ,  C08K3/28 ,  C08K3/38 ,  D01F1/02 ,  D01F9/20 ,  D01F9/21 ,  D01F9/24 ,  D01F9/26 ,  D01F9/28 ,  D01F9/30 ,  D01F9/22 ,  C09K5/14 ,  D01D1/02 ,  D01D5/00 ,  D04H3/007 ,  D04H3/03 ,  D06C7/04 ,  D01F1/10 ,  C08J3/20

CPC分类号： D01F9/22 ,  C08J3/203 ,  C08J3/212 ,  C09K5/14 ,  D01D1/02 ,  D01D5/003 ,  D01D5/0038 ,  D01F1/10 ,  D01F9/245 ,  D04H3/007 ,  D04H3/03 ,  D06C7/04 ,  D01F9/225 ,  D10B2101/12 ,  D10B2101/122 ,  D10B2503/00

摘要： Hybrid carbon nanofiber (Cnf) products (e.g., mats, yarns, webs, etc.) and methods of fabricating the same are provided. The hybrid Cnf products are flexible and lightweight and have high thermal conductivity. An electrospinning process can be used to fabricate the hybrid Cnf products and can include preparation of an electrospinning solution, electrospinning, and carbonization (e.g., under a vacuum condition).