公开(公告)号：US20170240712A1

公开(公告)日：2017-08-24

申请号：US15518982

申请日：2015-08-05

Applicant: ZEON CORPORATION

Inventor： Shinsuke SUGAWARA ,  Chikara KATANO

IPC: C08J3/24 ,  C08F220/18 ,  C08K5/205 ,  C08K5/092

CPC classification number: C08J3/24 ,  C08F220/18 ,  C08F2220/1825 ,  C08J2309/02 ,  C08K5/092 ,  C08K5/17 ,  C08K5/205 ,  C08L9/02

Abstract: A cross-linkable nitrile rubber composition including a nitrile rubber (a) containing 0.1 to 15 wt % of α,β-ethylenically unsaturated nitrile monomer units, 1 to 10 wt % of α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units, 40 to 75 wt % of α,β-ethylenically unsaturated monocarboxylic acid ester monomer units, and 20 to 58.9 wt % of diene monomer units and/or α-olefin monomer units, and a polyamine-based cross-linking agent (b), wherein a ratio of content of the polyamine-based cross-linking agent (b) with respect to 100 parts by weight of the nitrile rubber (a) is 0.1 to 20 parts by weight is provided.

公开(公告)号：US20210005894A1

公开(公告)日：2021-01-07

申请号：US16979519

申请日：2019-03-18

Applicant: ZEON CORPORATION

Inventor： Tomoya MURASE ,  Naoki TAKAHASHI ,  Shinsuke SUGAWARA

IPC: H01M4/62 ,  H01M4/60 ,  H01M4/88 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/36 ,  H01M10/0525 ,  C01B32/174

Abstract: Disclosed is a carbon nanotube dispersion liquid containing carbon nanotubes, a binder, and a dispersion medium. The binder includes a polymer (A) containing an aromatic vinyl monomer unit and a linear alkylene structural unit having a carbon number of at least 4. The proportion of the binder in the carbon nanotube dispersion liquid is 30 mass % or less, and the viscosity change rate of the carbon nanotube dispersion liquid as measured under predetermined conditions before and after leaving the carbon nanotube dispersion liquid for 1 week is 50% or more and 300% or less.

公开(公告)号：US20180251628A1

公开(公告)日：2018-09-06

申请号：US15756020

申请日：2016-09-13

Applicant: ZEON CORPORATION

Inventor： Shinsuke SUGAWARA

IPC: C08L9/02 ,  C08C19/02 ,  C08K5/10 ,  C08K5/17

Abstract: A nitrile rubber composition including a filler (B) in a content of 50 to 90 parts by weight and an adipic acid ester-based plasticizer and/or an ether ester-based plasticizer (C) in a content of 0 to 29.9 parts by weight in relation to 100 parts by weight of a nitrile group-containing highly saturated copolymer rubber (A) including an α,β-ethylenically unsaturated nitrile monomer unit in an proportion of 14 wt % or more and less than 21 wt %, and having an iodine value of 120 or less.

公开(公告)号：US20180016360A1

公开(公告)日：2018-01-18

申请号：US15544239

申请日：2015-12-25

Applicant: ZEON CORPORATION

Inventor： Akito NAKAI ,  Shinsuke SUGAWARA

IPC: C08C19/02 ,  C08F236/12

Abstract: Method of production of highly saturated nitrile rubber, including: polymerization step of polymerizing monomer mixture containing at least α,β-ethylenically unsaturated nitrile monomer and diene monomer in medium to obtain dispersion or solution of nitrile rubber; coagulation step causing the nitrile rubber dispersion or solution to coagulate at 10-60° C. to obtain solid form nitrile rubber; hydrogenation reaction step causing solid form nitrile rubber to disperse or dissolve in medium to obtain the nitrile rubber dispersion or solution and performing hydrogenation reaction of the obtained nitrile rubber dispersion or solution to obtain dispersion or solution of highly saturated nitrile rubber, wherein the hydrogenation reaction, the content of compound having a mercapto group having 9-12 carbon atoms is 50 wt ppm or less and content of compound having a mercapto group having 13-16 carbon atoms is 1-120 wt ppm with respect to 100 wt % of the nitrile rubber content in the nitrile rubber dispersion or solution.

公开(公告)号：US20220231297A1

公开(公告)日：2022-07-21

申请号：US17595943

申请日：2020-05-19

Applicant: ZEON CORPORATION

Inventor： Shinsuke SUGAWARA ,  Naoki TAKAHASHI

IPC: H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M4/04 ,  C01G53/00

Abstract: Provided is a method of producing a slurry composition for a secondary battery positive electrode containing an organic solvent, a specific polymer, and a positive electrode active material satisfying a specific chemical composition. The specific polymer includes a nitrile group-containing monomer unit and a linear alkylene structural unit having a carbon number of 4 or more. The pH of an extract of the specific polymer that is obtained by a specific method is not lower than 3.5 and lower than 6.0. The positive electrode active material is an active material having a high nickel content ratio.

公开(公告)号：US20220190341A1

公开(公告)日：2022-06-16

申请号：US17595315

申请日：2020-05-19

Applicant: ZEON CORPORATION

Inventor： Shinsuke SUGAWARA ,  Naoki TAKAHASHI

IPC: H01M4/62 ,  C08F212/10 ,  C08F220/42 ,  H01M10/0569 ,  H01M4/04

Abstract: A binder composition for a secondary battery positive electrode contains a specific polymer. The specific polymer includes a nitrile group-containing monomer unit and a linear alkylene structural unit having a carbon number of 4 or more. The pH of an extract of the specific polymer that is obtained by a specific method is 5.5 or higher.

公开(公告)号：US20180215906A1

公开(公告)日：2018-08-02

申请号：US15748340

申请日：2016-07-27

Applicant: ZEON CORPORATION

Inventor： Shinsuke SUGAWARA ,  Akito NAKAI

IPC: C08L15/00 ,  C08L9/02 ,  C08F236/14 ,  C08K3/04 ,  C08K3/36 ,  C08K5/11 ,  C08K5/14

Abstract: The present invention provides a nitrile group-containing highly saturated copolymer rubber comprising an α,β-ethylenically unsaturated nitrile monomer unit (a1) in a content of 10 to 40 wt %, an α,β-ethylenically unsaturated monocarboxylic acid ester monomer unit (a2) in a content of 10 to 60 wt %, and a conjugated diene monomer unit (a3) in a content of 20 to 70 wt %, and having an iodine value of 35 to 85.