公开(公告)号：US20170256800A1

公开(公告)日：2017-09-07

申请号：US15503789

申请日：2015-08-26

Applicant: ZEON CORPORATION

Inventor： Takuya KANEDA ,  Kentaro HAYASAKA ,  Yusaku MATSUO

IPC: H01M4/62 ,  C08L33/08 ,  C08J3/12 ,  C08L25/14 ,  H01M10/0525 ,  B01J13/14

CPC classification number: H01M4/622 ,  B01J13/14 ,  C08F212/08 ,  C08F265/04 ,  C08J3/126 ,  C08J2333/08 ,  C08J2425/14 ,  C08L25/14 ,  C08L33/08 ,  C08L51/06 ,  C08L2203/20 ,  C08L2207/53 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M10/0525 ,  H01M2004/021 ,  C08F236/06 ,  C08F222/02 ,  C08F220/20 ,  C08L25/10

Abstract: Provided is a binder composition for a secondary battery electrode that can cause a secondary battery to display excellent rate characteristics and cycle characteristics. The binder composition for a secondary battery electrode contains a first particulate polymer having a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion.

公开(公告)号：US20200332091A1

公开(公告)日：2020-10-22

申请号：US16957402

申请日：2019-01-10

Applicant: ZEON CORPORATION

Inventor： Kentaro HAYASAKA

IPC: C08L9/10 ,  A41D19/00 ,  A41D31/02

Abstract: A latex composition including a latex (A) of a diene rubber (a) having a weight average molecular weight of 50,000 or more and 1,000,000 or less and containing an ethylenically unsaturated acid monomer unit; and a latex (B) of a diene rubber (b) having a weight average molecular weight of 500 or more and less than 50,000 and containing an ethylenically unsaturated acid monomer unit.

公开(公告)号：US20230086263A1

公开(公告)日：2023-03-23

申请号：US17796041

申请日：2021-02-15

Applicant: ZEON CORPORATION

Inventor： Tomoya TANIYAMA ,  Kentaro HAYASAKA

IPC: C08L9/04

Abstract: A latex composition includes a latex of a conjugated diene polymer (A) having a glass transition temperature of 10° C. or less and a latex of a polymer (B) having a glass transition temperature of more than 10° C., wherein the value of (CS(B)−CS(A)) is more than 0% by weight, where a chemical stability of the latex of the conjugated diene polymer (A) to CaCl2, when the solids concentration of the latex is 20% by weight, is defined as CS(A) (% by weight), and a chemical stability of the latex of the polymer (B) to CaCl2, when the solids concentration of the latex is 20% by weight, is defined as CS(B) (% by weight).

公开(公告)号：US20200230847A1

公开(公告)日：2020-07-23

申请号：US16632141

申请日：2018-07-24

Applicant: ZEON CORPORATION

Inventor： Kentaro HAYASAKA ,  Tetsuya AKABANE ,  Kunihiko MAKINO

IPC: B29C41/20 ,  B32B5/02 ,  B32B25/10 ,  B32B25/14 ,  B29C41/14 ,  A41D19/015 ,  C08J5/02

Abstract: A method for producing a laminate including a substrate and a rubber layer, the rubber layer having a thickness of 200 μm or more from the surface of the substrate, the method including contacting the substrate in a heated state with a polymer latex having a viscosity of 2,000 to 100,000 mPa·s at 25° C. to thereby coagulate the polymer in contact therewith to form the rubber layer.

公开(公告)号：US20250096262A1

公开(公告)日：2025-03-20

申请号：US18727499

申请日：2023-01-20

Applicant: ZEON CORPORATION

Inventor： Kentaro HAYASAKA

IPC: H01M4/58 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62

Abstract: Provided are composite particles for an electrochemical device positive electrode that are capable of allowing an electrochemical device to exert good electrochemical characteristics. The composite particles include a positive electrode active material, a carbon-based conductive material, and a binder resin, wherein the ratio of the amount of carbon atoms of the center region to the amount of carbon atoms of the outer region (the amount of carbon atoms of the center region/the amount of carbon atoms of the outer region) in the composite particle is 0.3 or more and 1.0 or less.

公开(公告)号：US20210070907A1

公开(公告)日：2021-03-11

申请号：US16957479

申请日：2019-01-10

Applicant: ZEON CORPORATION

Inventor： Kentaro HAYASAKA

IPC: C08F236/14 ,  D06N3/00 ,  D06N3/10

Abstract: A latex composition having a nitrile rubber containing an α,β-ethylenically unsaturated nitrile monomer unit and a conjugated diene monomer unit, wherein the nitrile rubber has a weight average molecular weight of 50,000 to 100,000, and the weight of methanol extractables in all solids present in the latex composition is 2 to 20 wt % based on the weight of all the solids.

公开(公告)号：US20170214050A1

公开(公告)日：2017-07-27

申请号：US15500416

申请日：2015-07-23

Applicant: ZEON CORPORATION

Inventor： Takuya KANEDA ,  Kentaro HAYASAKA ,  Yusaku MATSUO

IPC: H01M4/62 ,  H01M4/525 ,  H01M4/587 ,  C08L33/20 ,  H01M10/0525

CPC classification number: H01M4/622 ,  C08L9/06 ,  C08L33/06 ,  C08L33/20 ,  H01M4/13 ,  H01M4/525 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0566 ,  H01M2004/021

Abstract: Provided is a binder composition for a secondary battery electrode that has excellent binding capacity and can cause a secondary battery to display excellent rate characteristics and cycle characteristics. The binder composition for a secondary battery electrode contains: a first particulate polymer having a degree of swelling in electrolysis solution of at least 400 mass % and no greater than 900 mass % and a glass transition temperature of at least −60° C. and no higher than −15° C.; a second particulate polymer having a degree of swelling in electrolysis solution of greater than 100 mass % and no greater than 200 mass % and a glass transition temperature of at least −10° C. and no higher than 30° C.; and water.

公开(公告)号：US20230151193A1

公开(公告)日：2023-05-18

申请号：US17923064

申请日：2021-05-20

Applicant: ZEON CORPORATION

Inventor： Kentaro HAYASAKA ,  Tomoya TANIYAMA

IPC: C08L9/04

CPC classification number: C08L9/04

Abstract: A latex composition for dip molding including a latex of a conjugated diene polymer (A) having a methyl ethyl ketone insolubles content of 50% by weight or less, and a latex of a polymer (B) having a methyl ethyl ketone insolubles content of 55% by weight or more.

公开(公告)号：US20200031100A1

公开(公告)日：2020-01-30

申请号：US16337104

申请日：2017-09-19

Applicant: ZEON CORPORATION

Inventor： Kentaro HAYASAKA ,  Tomoya TANIYAMA ,  Shinji KATO

IPC: B32B25/10 ,  C08L9/04 ,  C08K3/24 ,  C08K5/09 ,  A41D19/00

Abstract: A method of producing a laminated body, the method including a coagulant solution deposition step of depositing a coagulant solution on a fiber substrate, and a coagulation step of forming a polymer layer on the fiber substrate by bringing a polymer latex into contact with the fiber substrate having the coagulant solution deposited thereon to cause a polymer to coagulate. As the coagulant solution, a solution obtained by dissolving or dispersing 0.2 to 7.0% by weight of a metal salt as a coagulant and 0.1 to 7.0% by weight of an organic acid in a solvent is used. In the method of producing a laminated body, the metal salt is a polyvalent metal salt. In the method of producing a laminated body, the organic acid is an organic acid having at least one group selected from a carboxyl group, a sulfo group, a hydroxy group, and a thiol group.

公开(公告)号：US20170309916A1

公开(公告)日：2017-10-26

申请号：US15526089

申请日：2015-11-24

Applicant: ZEON CORPORATION

Inventor： Yujiro TOYODA ,  Takuya KANEDA ,  Kentaro HAYASAKA

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/13 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M2/16 ,  H01M2/1653 ,  H01M4/0402 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M2300/0017

Abstract: Provided is a binder for a non-aqueous secondary battery that has excellent preservation stability and binding capacity, and that can suppress viscosity elevation of a slurry composition. The binder for a non-aqueous secondary battery contains a particulate polymer and water. The particulate polymer has a degree of swelling in an aqueous medium at pH 5 of less than a factor of 2 and has a degree of swelling in an aqueous medium at pH 8 of at least a factor of 2 and no greater than a factor of 7.