公开(公告)号：US11305518B2

公开(公告)日：2022-04-19

申请号：US16476795

申请日：2018-01-12

Applicant: ZEON CORPORATION

Inventor： Tomoya Taniyama ,  Kentaro Hayasaka ,  Shinji Kato

IPC: B32B25/10 ,  B32B5/02 ,  B32B25/14 ,  B32B37/24 ,  A41D19/00

Abstract: A laminated body formed by laminating a fiber substrate composed of a plurality of fibers and a polymer layer formed from a polymer latex. The polymer layer covers the fiber substrate in a state in which a portion of the polymer layer has permeated among the fibers. A ratio (t1/d) of a thickness t1 of the portion of the polymer layer that has permeated among the fibers (from a top surface of the fiber substrate) to a substrate layer average thickness d is 0.1 to 0.95. A thickness t2 of the portion of the polymer layer covering the top surface of the fiber substrate (from the top surface of the fiber substrate) is 80 μm or more.

公开(公告)号：US10290873B2

公开(公告)日：2019-05-14

申请号：US15503789

申请日：2015-08-26

Applicant: ZEON CORPORATION

Inventor： Takuya Kaneda ,  Kentaro Hayasaka ,  Yusaku Matsuo

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  C08F265/04 ,  C08F212/08 ,  C08L51/06 ,  C08L25/14 ,  C08L33/08 ,  C08J3/12 ,  B01J13/14 ,  H01M4/02

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：US11850772B2

公开(公告)日：2023-12-26

申请号：US16632141

申请日：2018-07-24

Applicant: ZEON CORPORATION

Inventor： Kentaro Hayasaka ,  Tetsuya Akabane ,  Kunihiko Makino

IPC: B29C41/14 ,  C08J5/02 ,  A41D19/015 ,  B29C41/20 ,  B32B5/02 ,  B32B25/10 ,  B32B25/14 ,  B32B37/06 ,  B29K7/00 ,  B29L31/48

CPC classification number: B29C41/20 ,  A41D19/01505 ,  B29C41/14 ,  B32B5/02 ,  B32B25/10 ,  B32B25/14 ,  B32B37/06 ,  C08J5/02 ,  B29K2007/00 ,  B29K2713/00 ,  B29L2031/4864 ,  B32B2309/02 ,  B32B2309/105 ,  B32B2319/00 ,  B32B2437/02 ,  C08J2319/02

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：US11472908B2

公开(公告)日：2022-10-18

申请号：US16957479

申请日：2019-01-10

Applicant: ZEON CORPORATION

Inventor： Kentaro Hayasaka

IPC: C08F236/14 ,  D06N3/00 ,  D06N3/10 ,  C08L13/02 ,  C08K5/00 ,  C08K13/02 ,  C08L9/04 ,  C08F236/12 ,  C08F236/06 ,  C08K3/06 ,  C08K3/22

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：US11325356B2

公开(公告)日：2022-05-10

申请号：US16337104

申请日：2017-09-19

Applicant: ZEON CORPORATION

Inventor： Kentaro Hayasaka ,  Tomoya Taniyama ,  Shinji Kato

IPC: B32B25/10 ,  A41D19/00 ,  C08K3/24 ,  C08K5/09 ,  C08L9/04 ,  B05D5/00 ,  C08K3/28 ,  B05D1/36

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：US10529989B2

公开(公告)日：2020-01-07

申请号：US15500416

申请日：2015-07-23

Applicant: ZEON CORPORATION

Inventor： Takuya Kaneda ,  Kentaro Hayasaka ,  Yusaku Matsuo

IPC: H01M4/62 ,  C08L9/06 ,  C08L33/06 ,  H01M10/0566 ,  H01M4/13 ,  C08L33/20 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

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：US11827790B2

公开(公告)日：2023-11-28

申请号：US17278689

申请日：2019-09-17

Applicant: ZEON CORPORATION

Inventor： Kentaro Hayasaka ,  Takashi Iga

IPC: C08L9/04 ,  B32B25/12 ,  B32B25/10 ,  C08C1/15 ,  C08C1/14 ,  A41D19/00 ,  B29C41/20 ,  B29K7/00 ,  B29L31/48

CPC classification number: C08L9/04 ,  B32B25/10 ,  B32B25/12 ,  C08C1/145 ,  C08C1/15 ,  A41D19/0006 ,  B29C41/20 ,  B29K2005/00 ,  B29K2007/00 ,  B29K2713/00 ,  B29L2031/4864 ,  B32B2250/02 ,  B32B2437/02 ,  C08L2201/52

Abstract: A polymer latex including a polymer and at least one polysaccharide selected from the group consisting of tamarind gum, xanthan gum, cationized xanthan gum, gellan gum, guar gum and cationized guar gum.

公开(公告)号：US11414536B2

公开(公告)日：2022-08-16

申请号：US16957402

申请日：2019-01-10

Applicant: ZEON CORPORATION

Inventor： Kentaro Hayasaka

IPC: C08L9/10 ,  A41D19/00 ,  A41D31/02 ,  C08L9/04 ,  C08J5/02 ,  B32B25/10 ,  B32B25/16 ,  C08F236/06

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：US10312521B2

公开(公告)日：2019-06-04

申请号：US15526089

申请日：2015-11-24

Applicant: ZEON CORPORATION

Inventor： Yujiro Toyoda ,  Takuya Kaneda ,  Kentaro Hayasaka

IPC: H01M4/62 ,  H01M2/16 ,  H01M4/13 ,  H01M4/04 ,  H01M10/0525

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.