公开(公告)号：US20200243861A1

公开(公告)日：2020-07-30

申请号：US16633784

申请日：2018-08-23

Applicant: ZEON CORPORATION

Inventor： Norikazu YAMAMOTO ,  Yusaku MATSUO ,  Hidetake ISHII ,  Shunjin AIHARA

IPC: H01M4/62 ,  H01M2/16 ,  H01M4/13 ,  H01M10/0525 ,  C08F297/04

Abstract: Provided is a binder composition for a non-aqueous secondary battery with which it is possible to form a functional layer that can provide a battery component such as an electrode or a separator with a balance of excellent handleability and process adhesiveness. The binder composition for a non-aqueous secondary battery contains: polymer particles containing a block polymer including a block region composed of an aromatic vinyl monomer unit; a water-soluble polymer including a hydrophilic group; and water. The block polymer has a diblock content of not less than 0 mass % and not more than 60 mass %. The water-soluble polymer has a weight-average molecular weight of not less than 15,000 and not more than 500,000.

公开(公告)号：US20200062936A1

公开(公告)日：2020-02-27

申请号：US16346857

申请日：2017-11-02

Applicant: ZEON CORPORATION

Inventor： Junji KODEMURA ,  Shunjin AIHARA ,  Yoshitaka SATOH

IPC: C08L9/10 ,  C08C2/06 ,  C08C3/00 ,  C08C19/00 ,  C09D109/10 ,  B29C41/00 ,  B29C41/14 ,  B65D65/42

Abstract: A method for producing a synthetic polyisoprene latex, including a step of mixing a latex of synthetic polyisoprene (A) synthesized by use of a Ziegler type catalyst and a latex of synthetic polyisoprene (B) synthesized by use of an organic alkali metal catalyst at a weight ratio of “synthetic polyisoprene (A): synthetic polyisoprene (B)=10:90 to 90:10”. In the method, preferably, the weight average molecular weight of the synthetic polyisoprene (A) is 100,000 to 3,000,000 and the weight average molecular weight of the synthetic polyisoprene (B) is 1,000,000 to 5,000,000.

公开(公告)号：US20200056019A1

公开(公告)日：2020-02-20

申请号：US16482069

申请日：2018-02-09

Applicant: ZEON CORPORATION

Inventor： Shunjin AIHARA ,  Junji KODEMURA

IPC: C08L15/00 ,  C08J5/18 ,  C09J115/00

Abstract: A latex composition contains a carboxy-modified conjugated diene polymer latex, a xanthogen compound, and a metal oxide.

公开(公告)号：US20150376322A1

公开(公告)日：2015-12-31

申请号：US14768675

申请日：2014-02-20

Applicant: ZEON CORPORATION

Inventor： Yoshiyuki NAKAMURA ,  Osamu ISHIZU ,  Shunjin AIHARA

IPC: C08F279/02 ,  C08K5/47

CPC classification number: C08F279/02 ,  C08K5/09 ,  C08K5/41 ,  C08K5/42 ,  C08K5/47 ,  C08L51/04

Abstract: Provided is a carboxy-modified synthetic isoprene polymer latex for dip molding use, which is produced by the graft polymerization of a synthetic isoprene polymer with a monomer having a carboxyl group in an aqueous phase and contains at least one anionic surfactant, wherein a carboxy-modified synthetic isoprene polymer that constitutes the carboxy-modified synthetic isoprene polymer latex has a tetrahydrofuran-insoluble content of 30 wt % or more.

Abstract translation: 本发明提供一种用于浸渍模塑用途的羧基改性的合成异戊二烯聚合物胶乳，其通过在水相中具有羧基的单体的合成异戊二烯聚合物接枝聚合并含有至少一种阴离子表面活性剂而制备， 构成羧基改性的合成异戊二烯聚合物胶乳的改性合成异戊二烯聚合物的四氢呋喃不溶物含量为30重量％以上。

公开(公告)号：US20230420682A1

公开(公告)日：2023-12-28

申请号：US18252885

申请日：2021-11-11

Applicant: ZEON CORPORATION

Inventor： Shunjin AIHARA

IPC: H01M4/62 ,  H01M4/13 ,  C08F236/10

CPC classification number: H01M4/622 ,  H01M4/13 ,  C08F236/10 ,  C08F2800/10

Abstract: A binder composition for non-aqueous secondary battery electrode, having excellent stability as slurry composition and capable of forming electrode excellent in peel strength, is provided. The binder composition for non-aqueous secondary battery electrode comprises a particulate polymer formed from a random copolymer containing aromatic vinyl monomer derived structural unit, conjugated diene monomer derived structural unit, and acid monomer derived structural unit, said aromatic vinyl monomer derived structural unit having percentage content of more than 5 mass % and 40 mass % or less relative to 100 mass % of the particulate polymer, said conjugated diene monomer derived structural unit containing isoprene derived structural unit, and said isoprene derived structural unit having percentage content of 20 mass % or more relative to total 100 mass % of the aromatic vinyl monomer derived structural unit, the conjugated diene monomer derived structural unit, and the acid monomer derived structural unit.

公开(公告)号：US20190055367A1

公开(公告)日：2019-02-21

申请号：US16077612

申请日：2017-02-16

Applicant: ZEON CORPORATION

Inventor： Masatoshi ISHIBA ,  Shunjin AIHARA ,  Junji KODEMURA

IPC: C08J3/07 ,  C08J5/02 ,  C09J153/02 ,  C09J109/00 ,  B29C41/00 ,  B29C41/14

Abstract: A method for producing a polymer latex, including an emulsification step of mixing a polymer solution obtained by dissolution of synthetic polyisoprene and/or a styrene-isoprene-styrene block copolymer in an organic solvent, with an aqueous solution including 0.1 to 30 parts by weight of a rosinate based on 100 parts by weight in total of the synthetic polyisoprene and the styrene-isoprene-styrene block copolymer, and emulsifying the resultant in water to thereby obtain an emulsified liquid, a solvent removal step of removing the organic solvent in the emulsified liquid, and a concentration step of concentrating the emulsified liquid from which the organic solvent is removed, and also adjusting the content rate of the rosinate in the emulsified liquid after concentration, in the range of 0.1 to 3 parts by weight based on 100 parts by weight in total of the synthetic polyisoprene and the styrene-isoprene-styrene block copolymer in the emulsified liquid.

公开(公告)号：US20230044170A1

公开(公告)日：2023-02-09

申请号：US17759113

申请日：2021-01-28

Applicant: ZEON CORPORATION

Inventor： Shunjin AIHARA

IPC: H01M4/62 ,  H01M10/0525

Abstract: A binder composition for a non-aqueous secondary battery contains: a particulate polymer formed of a graft polymer that includes an acidic graft chain and that is obtained through a graft polymerization reaction of an acidic group-containing monomer and/or macromonomer with core particles containing a block copolymer that includes an aromatic vinyl block region formed of an aromatic vinyl monomer unit and an aliphatic conjugated diene block region formed of an aliphatic conjugated diene monomer unit; and an acidic group-containing water-soluble polymer that has a weight-average molecular weight of 200,000 or less.

公开(公告)号：US20210135225A1

公开(公告)日：2021-05-06

申请号：US16766291

申请日：2018-11-20

Applicant: ZEON CORPORATION

Inventor： Norikazu YAMAMOTO ,  Shunjin AIHARA

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/36

Abstract: Provided is a binder composition for a non-aqueous secondary battery with which it is possible to form a slurry composition for a non-aqueous secondary battery functional layer having excellent viscosity stability and a functional layer for a non-aqueous secondary battery having excellent pressability. The binder composition for a non-aqueous secondary battery contains water and a particulate polymer formed by a polymer including a block region composed of an aromatic vinyl monomer unit. The particulate polymer has a surface acid content of not less than 0.05 mmol/g and not more than 0.9 mmol/g.

公开(公告)号：US20200062873A1

公开(公告)日：2020-02-27

申请号：US16346864

申请日：2017-11-02

Applicant: ZEON CORPORATION

Inventor： Junji KODEMURA ,  Shunjin AIHARA ,  Yoshitaka SATOH

IPC: C08F36/08 ,  C08C2/06 ,  C08C19/00 ,  C08J5/18 ,  C09J5/00 ,  C09J109/10 ,  B65D65/40 ,  B32B7/12 ,  B29C41/00

Abstract: A synthetic polyisoprene latex containing synthetic polyisoprene, wherein the synthetic polyisoprene constituting the synthetic polyisoprene latex includes a low-molecular weight synthetic isoprene chain having a molecular weight of less than 1,000,000 at a content rate of 10 to 70% by weight and a high-molecular weight synthetic isoprene chain having a molecular weight of 1,000,000 or more at a content rate of 30 to 90% by weight. Also, a method for producing the synthetic polyisoprene latex, wherein the synthetic polyisoprene containing the low-molecular weight synthetic isoprene chain and the high-molecular weight synthetic isoprene chain is obtained by polymerizing a monomer containing isoprene in an organic solvent by use of an organic alkali metal catalyst.

公开(公告)号：US20200010651A1

公开(公告)日：2020-01-09

申请号：US16465226

申请日：2017-11-02

Applicant: ZEON CORPORATION

Inventor： Shunjin AIHARA ,  Junji KODEMURA ,  Yoshitaka SATOH

IPC: C08L9/10 ,  C09J109/10 ,  C09J5/00 ,  C09J11/08 ,  B29C41/00 ,  B29C41/14

Abstract: A method for producing a polymer latex, includes a step of emulsifying a polymer solution of a synthetic polyisoprene and/or a styrene-isoprene-styrene block copolymer, in water in the presence of a rosin and/or a rosin metal salt, thereby obtaining an emulsified liquid, wherein the rosin and/or the rosin metal salt to be used have/has a total content rate of abietic acid, neoabietic acid and palustric acid, and salts thereof, of 5% by weight or less.