公开(公告)号：US12091531B2

公开(公告)日：2024-09-17

申请号：US17781499

申请日：2020-12-01

Applicant: DENKA COMPANY LIMITED

Inventor： Toru Arai ,  Shota Yamamoto ,  Hiroaki Nishimura ,  Azusa Yagi

IPC: C08L23/08 ,  B32B7/12 ,  B32B15/082 ,  B32B15/085 ,  B32B15/20 ,  B32B17/10 ,  B32B27/08 ,  B32B27/32 ,  C08F210/02 ,  C08F212/08 ,  C08F212/36 ,  C08K5/14 ,  C08L25/08

CPC classification number: C08L23/0838 ,  B32B7/12 ,  B32B15/082 ,  B32B15/085 ,  B32B15/20 ,  B32B17/10 ,  B32B27/08 ,  B32B27/322 ,  C08F210/02 ,  C08F212/08 ,  C08F212/36 ,  C08K5/14 ,  C08L25/08 ,  B32B2307/204 ,  B32B2307/206 ,  B32B2307/54 ,  B32B2307/732 ,  B32B2307/748 ,  B32B2311/12 ,  B32B2323/04 ,  B32B2325/00

Abstract: A laminate has an olefin-aromatic vinyl compound-aromatic polyene copolymer and a metal foil. The number average molecular copolymer weight is between 5000 and 100000; the aromatic vinyl compound monomer is aromatic vinyl compound having between 8 and 20 carbon atoms, and the aromatic vinyl compound monomer unit content is between 10 and 60 mass %; the aromatic polyene is selected having between 5 and 20 carbon atoms and vinyl and/or vinylene groups in the molecule, the content derived from the aromatic polyene unit is between 1.5 and 20 pieces per number average molecular weight; and the olefin is selected having between 2 and 20 carbon atoms, being ethylene alone, or having a mass ratio of α-olefin monomer components other than ethylene to an ethylene monomer component contained in the olefin, of 1/7 or less, and the total monomer units of the olefin, aromatic vinyl compound, and aromatic polyene is 100 mass %.

公开(公告)号：US10714746B2

公开(公告)日：2020-07-14

申请号：US15503362

申请日：2015-08-06

Applicant: Denka Company Limited

Inventor： Yoko Horikoshi ,  Toru Arai ,  Hitoshi Kaneko ,  Tatsuya Nagai ,  Ayumu Tsukamoto

IPC: H01B1/24 ,  H01M4/00 ,  H01M4/40 ,  H01M4/525 ,  C01B32/05 ,  H01M4/62 ,  C09D127/16 ,  C09D129/04 ,  C09D127/18 ,  H01M4/38 ,  H01M10/052 ,  B82Y40/00 ,  B82Y30/00 ,  H01M4/131 ,  C08F14/26 ,  C08F20/06 ,  C08L9/06

Abstract: A conductive composition for electrode is provided that is excellent in conductivity and dispersibility. Further, an electrode for lithium ion secondary battery with lower plate resistance and a lithium ion secondary battery excellent in rate characteristics are provided that use this conductive composition. A conductive composition for electrode, including: carbon nanofiber with a median diameter D50 value by volume from 0.1 to 8 pm; an active material; and a binder enables production of an electrode for lithium ion secondary battery with lower plate resistance and a lithium ion secondary battery excellent in rate characteristics.

公开(公告)号：US20170145135A1

公开(公告)日：2017-05-25

申请号：US15310403

申请日：2015-05-14

Applicant: Denka Company Limited

Inventor： Toru Arai ,  Ayumu Tsukamoto ,  Eri Sasaki

IPC: C08F255/02 ,  H01L31/0203 ,  C09J151/06 ,  A61L29/04 ,  A61L31/04

CPC classification number: C08F255/02 ,  A61L29/041 ,  A61L31/048 ,  B32B27/30 ,  C08F4/65912 ,  C08F6/02 ,  C08F6/08 ,  C08F212/00 ,  C08F297/02 ,  C08J5/18 ,  C08J2323/08 ,  C09J151/06 ,  H01L31/0203 ,  H01L31/0481 ,  Y02E10/50 ,  C08F210/02 ,  C08F4/65927 ,  C08F212/08 ,  C08F212/36 ,  C08F2500/03 ,  C08F2500/26

Abstract: The purpose of the present invention is to provide: a cross-copolymer in which a residual catalyst component remains in a reduced amount and which has improved transparency, applicability to medical materials and yellowish discoloration resistance; and a method for producing the cross-copolymer. According to the present invention, a cross-copolymer is provided, wherein the cross-copolymer is produced through a coordination polymerization step of carrying out copolymerization of an olefin monomer, an aromatic vinyl compound monomer and an aromatic polyene using a single-site coordination polymerization catalyst to synthesize an olefin-(aromatic vinyl compound)-(aromatic polyene) copolymer and a subsequent anionic polymerization step of carrying out polymerization in the co-presence of the olefin-(aromatic vinyl compound)-(aromatic polyene) copolymer and an aromatic vinyl compound monomer using an anionic polymerization initiator, the cross-copolymer being characterized in that the total mass of aluminum and lithium, which are residual catalyst components, contained in the cross-copolymer is 200 ppm or less.

公开(公告)号：US11208741B2

公开(公告)日：2021-12-28

申请号：US15753138

申请日：2016-07-15

Applicant: DENKA COMPANY LIMITED

Inventor： Toru Arai ,  Hitoshi Kaneko

IPC: H01B1/22 ,  C08K3/00 ,  D01F9/00 ,  D01F9/127 ,  B01J23/75 ,  B01J23/755 ,  C09D5/24 ,  H01B1/24 ,  C08K3/04 ,  C08L101/00 ,  C09D11/037 ,  C09D201/00 ,  D01F9/32 ,  C09D7/40 ,  H01M4/13 ,  B01J21/06 ,  B01J21/18 ,  B01J23/02 ,  C09D11/52 ,  H01M4/62

Abstract: An object of the present invention is to provide a method for a carbon nanofiber composite, which can obtain a carbon nanofiber composite with high productivity and high activity, and which does not require removal of fluidizing materials or dispersing materials. The present invention also provides a carbon nanofiber composite having improved dispersibility. The method for producing the carbon nanofiber composite includes bringing at least one catalyst and at least one particulate carbon material into contact with at least one gas containing at least one gaseous carbon-containing compound while mechanically stirring the catalyst and the particulate carbon material in a reactor. The carbon nanofiber composite includes carbon nanofibers and at least one particulate carbon material, wherein the particulate carbon material has 70% by volume or more of particles with a particle diameter of 1 μm or less, and/or a median diameter D50 by volume of 1 μm or less.

公开(公告)号：US20180347073A1

公开(公告)日：2018-12-06

申请号：US15753138

申请日：2016-07-15

Applicant: DENKA COMPANY LIMITED

Inventor： Toru Arai ,  Hitoshi Kaneko

IPC: D01F9/127 ,  C08K3/04 ,  C09D5/24 ,  C09D7/40 ,  C09D11/52 ,  B01J23/75 ,  B01J23/755 ,  B01J23/02 ,  B01J21/06 ,  B01J21/18 ,  H01M4/62

CPC classification number: B01J23/75 ,  B01J23/755 ,  C08K3/041 ,  C08K3/046 ,  C08L101/00 ,  C09D5/24 ,  C09D7/40 ,  C09D11/037 ,  C09D201/00 ,  H01B1/00 ,  H01B1/04 ,  H01B1/24 ,  H01B5/00 ,  H01B13/00 ,  H01M4/62

Abstract: An object of the present invention is to provide a method for a carbon nanofiber composite, which can obtain a carbon nanofiber composite with high productivity and high activity, and which does not require removal of fluidizing materials or dispersing materials. The present invention also provides a carbon nanofiber composite having improved dispersibility. The method for producing the carbon nanofiber composite includes bringing at least one catalyst and at least one particulate carbon material into contact with at least one gas containing at least one gaseous carbon-containing compound while mechanically stirring the catalyst and the particulate carbon material in a reactor. The carbon nanofiber composite includes carbon nanofibers and at least one particulate carbon material, wherein the particulate carbon material has 70% by volume or more of particles with a particle diameter of 1 μm or less, and/or a median diameter D50 by volume of 1 μm or less.

公开(公告)号：US10087557B2

公开(公告)日：2018-10-02

申请号：US15748350

申请日：2016-07-25

Applicant: Denka Company Limited

Inventor： Hitoshi Kaneko ,  Toru Arai ,  Yoko Horikoshi ,  Ayumu Tsukamoto

IPC: D01F9/127 ,  B01J35/10 ,  C01B32/168 ,  B01J23/75 ,  B82Y40/00

Abstract: Provided is a method for producing carbon nanofibers having excellent conductivity, crystallinity and dispersibility. A method for producing carbon nanofibers, which uses an activated species mainly composed of cobalt as a catalyst, while using carbon monoxide as a carbon source. The catalyst is obtained by having a carrier, which is composed of an oxide having a specific surface area of 0.01-5 m2/g and containing magnesium, support 3-90% by mass of the activated species. By controlling the reaction temperature, the carbon monoxide partial pressure and the gas flow rate of the carbon monoxide, CNF having more excellent conductivity, crystallinity and dispersibility can be produced, thereby obtaining carbon nanofibers having excellent conductivity, crystallinity and dispersibility.

公开(公告)号：US20160348282A1

公开(公告)日：2016-12-01

申请号：US15116776

申请日：2015-02-03

Applicant: DENKA COMPANY LIMITED

Inventor： Hitoshi Kaneko ,  Toru Arai ,  Masaya Umeyama ,  Yoko Tamura ,  Ayumu Tsukamoto

IPC: D01F9/127 ,  H01B1/04 ,  B01J35/00 ,  B01J35/10 ,  B01J21/10 ,  B01J23/75

CPC classification number: D01F9/1278 ,  B01J21/10 ,  B01J23/75 ,  B01J35/0006 ,  B01J35/1009 ,  B82Y30/00 ,  B82Y40/00 ,  H01B1/04 ,  Y10S977/762 ,  Y10S977/896 ,  Y10S977/932

Abstract: A manufacturing method of carbon nanofibers at a high activity is provided. Further, carbon nanofibers produced by the manufacturing method and being excellent in electric conductivity, crystallinity and dispersibility is provided.By a manufacturing method of carbon nanofibers in which an active species including cobalt as a chief component is employed as a catalyst and carbon monoxide is used as a carbon source, wherein said catalyst has 3 to 150 mass % of said active species carried on a carrier composed of a magnesium-containing oxide having a specific surface area of 0.01 to 5 m2/g, and a reaction temperature, partial pressure of carbon monoxide and a flow rate of raw material gas is controlled, CNFs that are excellent in electric conductivity, crystallinity and dispersibility can be manufactured at high activity, so that carbon nanofibers that is excellent in electric conductivity, crystallinity and dispersibility is obtained.

Abstract translation: 通过使用其中使用包含钴作为主要成分的活性种类作为催化剂并使用一氧化碳作为碳源的碳纳米纤维的制造方法，其中所述催化剂具有携带在载体上的3〜150质量％的所述活性物质 由比表面积为0.01〜5m 2 / g的含镁氧化物，反应温度，一氧化碳分压和原料气体的流量进行控制，导电性，结晶性优异的CNF 并且可以以高活性制造分散性，从而获得导电性，结晶度和分散性优异的碳纳米纤维。

公开(公告)号：US20220074081A1

公开(公告)日：2022-03-10

申请号：US17455547

申请日：2021-11-18

Applicant: DENKA COMPANY LIMITED

Inventor： Toru Arai ,  Hitoshi Kaneko

IPC: D01F9/127 ,  B01J23/75 ,  B01J23/755 ,  C09D5/24 ,  H01B1/24 ,  C08K3/04 ,  C08L101/00 ,  C09D11/037 ,  C09D201/00 ,  D01F9/32 ,  C09D7/40 ,  H01M4/13 ,  H01B1/22 ,  B01J21/06 ,  B01J21/18 ,  B01J23/02 ,  C09D11/52 ,  H01M4/62

Abstract: A method for a carbon nanofiber composite, which can obtain a carbon nanofiber composite with high productivity and high activity, and which does not require removal of fluidizing materials or dispersing materials, provides a carbon nanofiber composite having improved dispersibility. The method for producing the carbon nanofiber composite includes bringing at least one catalyst and at least one particulate carbon material into contact with at least one gas containing at least one gaseous carbon-containing compound while mechanically stirring the catalyst and the particulate carbon material in a reactor. The carbon nanofiber composite includes carbon nanofibers and at least one particulate carbon material, wherein the particulate carbon material has 70% by volume or more of particles with a particle diameter of 1 μm or less, and/or a median diameter D50 by volume of 1 μm or less.

公开(公告)号：US20190330402A1

公开(公告)日：2019-10-31

申请号：US16460723

申请日：2019-07-02

Applicant: Denka Company Limited

Inventor： Toru Arai ,  Ayumu Tsukamoto ,  Eri Sasaki

IPC: C08F255/02 ,  H01L31/048 ,  A61L31/04 ,  H01L31/0203 ,  C08J5/18 ,  C09J151/06 ,  C08F6/02 ,  A61L29/04 ,  B32B27/30 ,  C08F297/02 ,  C08F6/08 ,  C08F212/00

Abstract: The purpose of the present invention is to provide: a cross-copolymer in which a residual catalyst component remains in a reduced amount and which has improved transparency, applicability to medical materials and yellowish discoloration resistance; and a method for producing the cross-copolymer. According to the present invention, a cross-copolymer is provided, wherein the cross-copolymer is produced through a coordination polymerization step of carrying out copolymerization of an olefin monomer, an aromatic vinyl compound monomer and an aromatic polyene using a single-site coordination polymerization catalyst to synthesize an olefin-(aromatic vinyl compound)-(aromatic polyene) copolymer and a subsequent anionic polymerization step of carrying out polymerization in the co-presence of the olefin-(aromatic vinyl compound)-(aromatic polyene) copolymer and an aromatic vinyl compound monomer using an anionic polymerization initiator, the cross-copolymer being characterized in that the total mass of aluminum and lithium, which are residual catalyst components, contained in the cross-copolymer is 200 ppm or less.

公开(公告)号：US20170288218A1

公开(公告)日：2017-10-05

申请号：US15503362

申请日：2015-08-06

Applicant: Denka Company Limited

Inventor： Yoko Horikoshi ,  Toru Arai ,  Hitoshi Kaneko ,  Tatsuya Nagai ,  Ayumu Tsukamoto

IPC: H01M4/40 ,  H01M4/62 ,  H01M4/38 ,  H01M10/052 ,  H01M4/525

Abstract: A conductive composition for electrode is provided that is excellent in conductivity and dispersibility. Further, an electrode for lithium ion secondary battery with lower plate resistance and a lithium ion secondary battery excellent in rate characteristics are provided that use this conductive composition. A conductive composition for electrode, including: carbon nanofiber with a median diameter D50 value by volume from 0.1 to 8 μm; an active material; and a binder enables production of an electrode for lithium ion secondary battery with lower plate resistance and a lithium ion secondary battery excellent in rate characteristics.