公开(公告)号：US12065762B2

公开(公告)日：2024-08-20

申请号：US18217813

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：US20240247088A1

公开(公告)日：2024-07-25

申请号：US18289683

申请日：2022-04-28

申请人： Kao Corporation

发明人： Akito ITOI ,  Yutaro KINOSHITA ,  Kyoichi SHIROTA

IPC分类号： C08F220/18 ,  C08F220/48 ,  C09D5/24 ,  C09D7/45 ,  C09D7/61 ,  C09D7/65 ,  H01M4/62

CPC分类号： C08F220/1818 ,  C08F220/48 ,  C09D5/24 ,  C09D7/45 ,  C09D7/61 ,  C09D7/65 ,  H01M4/62 ,  H01M4/625 ,  C08F2800/20

摘要： An aspect of the present disclosure relates to a dispersant for a positive electrode of a power storage device, the dispersant being a copolymer containing a constitutional unit represented by the following formula (1), a constitutional unit represented by the following formula (2), and a constitutional unit represented by the following formula (3). Also, an aspect of the present disclosure relates to a dispersant composition, a conductive material slurry for a battery and a method for producing the conductive material slurry a positive electrode paste for a battery or a positive electrode for a battery, each of which contains the dispersant for a positive electrode of a power storage device.

公开(公告)号：US12006595B2

公开(公告)日：2024-06-11

申请号：US17895949

申请日：2022-08-25

申请人： FORMOSA PLASTICS CORPORATION

发明人： Long-Tyan Hwang ,  Chia-Chi Hung ,  Kun-Yeh Tsai ,  Ching-Wen Chen ,  Wen-Ju Chou

IPC分类号： C08F2/06 ,  C08F4/04 ,  C08F4/34 ,  C08F220/44 ,  C08F220/46 ,  C08F220/48 ,  C08L33/20 ,  D01D1/02 ,  D01D5/06 ,  D01D5/12 ,  D01D10/02 ,  D01D10/06 ,  D01F1/02 ,  D01F1/10 ,  D01F6/36 ,  D01F6/38 ,  D01F9/22 ,  C08K3/08 ,  D06M101/28

CPC分类号： D01F9/22 ,  C08F220/48 ,  D01F6/36 ,  D01F9/225 ,  C08F2800/20 ,  C08K2003/085 ,  C08K2003/0856 ,  D06M2101/28

摘要： The present invention relates to a method for producing a carbon fiber. In the method for producing the carbon fiber, a high pure acrylonitrile monomer with specific contents of impurities and a comonomer are used to produce an acrylonitrile copolymer, and the acrylonitrile copolymer is subjected to a spinning operation, a stretching operation, an oxidation treatment and a carbonization treatment in sequence, for obtaining the carbon fiber. The acrylonitrile copolymer with an appropriate falling-ball viscosity and an appropriate weight-average molecular weight is beneficial to the spinning operation, thereby reducing an inner pore diameter and enhancing strength of the resulted carbon fiber.

公开(公告)号：US20230357960A1

公开(公告)日：2023-11-09

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： D01F6/38 ,  C01B32/05 ,  C08F220/14 ,  C08F220/48 ,  D01D5/08 ,  D01F9/22 ,  C08F220/44

CPC分类号： D01F6/38 ,  C01B32/05 ,  C08F220/14 ,  C08F220/48 ,  D01D5/08 ,  D01F9/22 ,  C08F220/44 ,  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：US11646421B2

公开(公告)日：2023-05-09

申请号：US16999030

申请日：2020-08-20

申请人： ARAKAWA CHEMICAL INDUSTRIES, LTD.

发明人： Shinji Ozaki ,  Hideki Goda ,  Naoki Sasagawa ,  Satoru Aoyama ,  Katsuya Okubo ,  Katsuhiko Ikeyatsu

IPC分类号： H01M4/62 ,  C08F220/28 ,  C08F220/58 ,  C08F220/48 ,  C08F220/56 ,  H01M4/36 ,  H01M4/48 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/622 ,  C08F220/281 ,  C08F220/48 ,  C08F220/56 ,  C08F220/585 ,  H01M4/364 ,  H01M4/483 ,  H01M4/587 ,  H01M10/0525 ,  C08F2800/10 ,  H01M2004/027

摘要： Provided are a thermally crosslinkable binder aqueous solution for a lithium-ion battery, a thermally crosslinkable slurry for a lithium-ion battery negative electrode, a negative electrode for a lithium-ion battery, and a lithium-ion battery. The thermally crosslinkable binder aqueous solution for a lithium-ion battery contains a water-soluble poly(meth)acrylamide (A) and a divalent or higher valent metal ion. The water-soluble poly(meth)acrylamide (A) contains 2 mol % to 60 mol % of a constituent unit derived from a (meth)acrylamide group-containing compound (a), and 10 mol % to 50 mol % of a constituent unit derived from one or more unsaturated acids selected from the group consisting of unsaturated carboxylic acids and unsaturated sulfonic acids or an inorganic salt thereof (b). The divalent or higher valent metal ion is contained in an amount of 0.5 mol % to 30 mol % with respect to 100 mol % of an acid group contained in the component (b).

公开(公告)号：US20230124554A1

公开(公告)日：2023-04-20

申请号：US18059104

申请日：2022-11-28

申请人： University of Washington

发明人： Shaoyi Jiang ,  Tao Bai ,  Jean-René Ella-Menye ,  Hsiang-Chieh Hung ,  Priyesh Jain ,  Andrew Sinclair ,  Harihara Subramanian Sundaram ,  Yang Li ,  Peng Zhang

IPC分类号： C08F220/34 ,  C08F220/36 ,  C08F220/48 ,  C07F9/09 ,  C07C229/16 ,  C07C265/04 ,  C07C229/12 ,  C07C255/23 ,  C07C237/22 ,  C08F220/44 ,  C07C253/30 ,  C07C255/26 ,  C08F220/50 ,  C08F220/42 ,  C09D5/16 ,  C09D7/65 ,  C08F220/60 ,  A61K47/58 ,  A61K47/59 ,  C08G18/38 ,  C08G18/78 ,  C08G61/08 ,  C08G61/12 ,  C08G63/685 ,  C08G69/26 ,  C08G69/42 ,  C08G73/02 ,  C08G73/06 ,  C08L35/02 ,  C08L65/00 ,  C08L67/02 ,  C08L75/04 ,  C08L77/06 ,  C08L79/02 ,  C08L79/04 ,  C09D135/02 ,  C09D165/00 ,  C09D167/02 ,  C09D175/04 ,  C09D177/06 ,  C09D179/02 ,  C09D179/04

摘要： Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions

公开(公告)号：US11603423B2

公开(公告)日：2023-03-14

申请号：US16326597

申请日：2016-12-09

申请人： SICHUAN INDIGO TECHNOLOGY CO., LTD.

发明人： Zhonglai Pan ,  Xiaozheng Zhang ,  Chuan Lyu ,  Hongchang Du

IPC分类号： H01M50/44 ,  H01M50/42 ,  H01M4/62 ,  H01M10/05 ,  C08F220/48 ,  H01M50/449 ,  C09D133/20 ,  C09J133/20 ,  H01M10/0525 ,  H01M4/02

摘要： The invention relates to an acrylonitrile copolymer binder and application thereof in lithium ion battery, belonging to the field of lithium ion battery. The technical problem to be solved by the invention is to provide an acrylonitrile copolymer binder comprising the following structural units in percentage by weight: 78-95% of acrylonitrile unit, 1-10% of acrylic ester unit and 2-15% of acrylamide unit. For the binder of the invention, acrylonitrile monomer is taken as the main body, and acrylic ester monomer, acrylamide monomer or acrylate salt monomer with strong polarity is added to acrylonitrile for copolymerization to enable the flexibility of a polymer membrane, the affinity of an electrolyte and the proper swelling degree in the electrolyte while keeping strong adhesion or intermolecular force of acrylonitrile polymer molecules, so as to fit the periodic volume changes of electrode active materials along with lithium ion intercalation/deintercalation in charging and discharging processes, thereby improving the energy density and cycle performance of the lithium ion battery.

公开(公告)号：US10774192B2

公开(公告)日：2020-09-15

申请号：US16322218

申请日：2017-07-07

申请人： MATSUMOTO YUSHI-SEIYAKU CO., LTD.

发明人： Naoya Tayagaki ,  Katsushi Miki

IPC分类号： C08J9/20 ,  C08J9/16 ,  C08J9/228 ,  C08J9/232 ,  C08J9/32 ,  C08F2/18 ,  C08F2/44 ,  C08L27/06 ,  B01J13/18 ,  C08F220/48 ,  C08F220/46 ,  C08L33/18 ,  C08J9/14

摘要： Hollow resin particles, a production process for producing the same and application thereof. The hollow resin particles include a thermoplastic resin shell and a hollow part surrounded by the shell. The thermoplastic resin is a polymer produced from a polymerizable component containing 0.6 to 3.0 wt % of a crosslinkable monomer having at least two polymerizable carbon-carbon double bonds per molecule and 97 to 99.4 wt % of an uncrosslinkable monomer having one polymerizable carbon-carbon double bond per molecule. A blowing agent is encapsulated in the hollow resin particles. The blowing agent contains 50 to 100 wt % of an organic compound having a vapor pressure higher than 100 kPa at 25° C. Further, the encapsulation ratio of the blowing agent ranges from 3 to 13 wt % of the hollow resin particles.

公开(公告)号：US10017881B2

公开(公告)日：2018-07-10

申请号：US14234225

申请日：2012-07-20

申请人： Yusuke Shinmen ,  Norifumi Hirota ,  Naoki Aoyama ,  Naomasa Matsuyama ,  Takeshi Nii ,  Yasuyuki Fujii ,  Yoshiko Irie ,  Harumi Matsuda

发明人： Yusuke Shinmen ,  Norifumi Hirota ,  Naoki Aoyama ,  Naomasa Matsuyama ,  Takeshi Nii ,  Yasuyuki Fujii ,  Yoshiko Irie ,  Harumi Matsuda

IPC分类号： D01F9/22 ,  D01F6/38 ,  C08F220/48 ,  C08F220/20 ,  C08F220/56 ,  C08F220/18 ,  C08F220/06

CPC分类号： D01F9/22 ,  C08F220/06 ,  C08F220/18 ,  C08F220/20 ,  C08F220/48 ,  C08F220/56 ,  D01D5/253 ,  D01F6/38 ,  D01F9/225 ,  Y10T428/2918 ,  C08F220/44

摘要： Provided are: a polyacrylonitrile-based precursor fiber for the production of a carbon fiber having a large single-fiber fineness, said precursor fiber ensuring high heat stability of a spinning dope and excellent productivity; and a copolymer suitable for the production of said precursor fiber. Also provided are: high-quality carbon fiber bundles which have a large single-fiber fineness and excellent productivity; a process for producing the same; and a process for producing flameproofed fiber bundles suitable for the production of the carbon fiber bundles. A polyacrylonitrile-based copolymer which comprises 93.0 to 99.4 mol % of acrylonitrile units, 0.5 to 4.0 mol % of (meth)acrylamide-based units, and 0.1 to 3.0 mol % of unsaturated carboxylic acid hydroxyalkyl ester units and in which the (meth)acrylamide-based units are (meth)acrylamide units and/or (meth)acrylamide derivative units having a molecular weight of 105 or less; a precursor fiber comprising the copolymer; a process for producing flameproofed fiber bundles which uses precursor fiber bundles consisting of the precursor fiber; carbon fiber bundles; and a process for production thereof.

公开(公告)号：US20150376316A1

公开(公告)日：2015-12-31

申请号：US14748937

申请日：2015-06-24

申请人： Samsung SDI Co., Ltd.

发明人： Jae Won HEO ,  Joo Hyun JANG ,  Bo Eun KIM ,  Kwang Soo PARK ,  Natarajan SENTHILKUMAR ,  Young Sub JIN

IPC分类号： C08F220/48 ,  C08F212/12

CPC分类号： C08F212/12 ,  C08F222/40 ,  C08F220/44 ,  C08F212/08 ,  C08F2/18

摘要： A method for preparing a tetrapolymer includes preparing a suspension including an aromatic vinyl-based monomer, an unsaturated nitrile-based monomer, an N-substituted maleimide-based monomer, an α-alkyl styrene-based monomer, and an inorganic dispersing agent, and polymerizing the suspension. The method for preparing a tetrapolymer can be useful in lowering a reaction temperature using suspension polymerization, and reducing a reaction time, thereby maximizing productivity. A tetrapolymer prepared by the method is also provided.

摘要翻译： 制备四聚物的方法包括制备包含芳族乙烯基类单体，不饱和腈类单体，N-取代马来酰亚胺类单体，α-烷基苯乙烯类单体和无机分散剂的悬浮液， 使悬浮液聚合。 制备四聚物的方法可用于使用悬浮聚合降低反应温度，并且减少反应时间，从而使生产率最大化。 还提供了通过该方法制备的四元共聚物。