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    BLOCK COPOLYMER COMPOSITION, HEAT SHRINK FILM USING SAME, AND PACKAGE PROVIDED WITH HEAT SHRINK FILM
    1.
    发明申请
    BLOCK COPOLYMER COMPOSITION, HEAT SHRINK FILM USING SAME, AND PACKAGE PROVIDED WITH HEAT SHRINK FILM 有权

    公开(公告)号：US20210284781A1

    公开(公告)日：2021-09-16

    申请号：US17264149

    申请日：2019-07-26

    Applicant: DENKA COMPANY LIMITED

    Inventor： Tadashi SAWASATO ,  Yuya NAKAMURA ,  Jun YOSHIDA

    IPC: C08F297/04 ,  C08J5/18 ,  B65D65/04

    Abstract: A block copolymer composition containing at least one type of block copolymer component obtained by using a vinyl aromatic hydrocarbon and a conjugated diene, wherein the block copolymer composition satisfies the conditions (1) to (3) indicated below. (1) The weight-average molecular weight is at least 100000 and at most 300000, and the conjugated diene content is at least 18 mass % and at most 35 mass %. (2) The vinyl aromatic hydrocarbon block percentage is at least 80% and at most 100% relative to the total amount of the vinyl aromatic hydrocarbon. (3) At least 30 mass % and at most 60 mass % of block copolymer components having a conjugated diene content of at least 30 mass % are included.

    RESIN COMPOSITION CONTAINING BLOCK COPOLYMER
    2.
    发明申请
    RESIN COMPOSITION CONTAINING BLOCK COPOLYMER 审中-公开

    公开(公告)号：US20170198079A1

    公开(公告)日：2017-07-13

    申请号：US15316690

    申请日：2015-06-03

    Applicant: DENKA COMPANY LIMITED

    Inventor： Masayuki OHISHI ,  Jun YOSHIDA ,  Eiji SATO

    IPC: C08F297/04 ,  B65D65/40 ,  C08J5/18 ,  C08L25/06 ,  C08L53/02

    CPC classification number: C08F297/04 ,  B65D65/40 ,  C08F297/044 ,  C08J5/18 ,  C08J2325/06 ,  C08J2353/02 ,  C08J2425/06 ,  C08J2453/02 ,  C08L25/06 ,  C08L53/02 ,  C08L101/00 ,  C08L2201/10 ,  C08L2205/025 ,  C08L2205/03

    Abstract: To provide a resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, from which a formed product such as a sheet or a film, having excellent transparency and impact resistance, can be obtained.A resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, which satisfies the following (A) to (D): (A) the content ratio (mass) of the conjugated diene is from 22 to 32%, (B) the block ratio of the vinyl aromatic hydrocarbon is from 90 to 98%, (C) Mw/Mn (wherein Mw is the weight average molecular weight and Mn is the number average molecular weight) is from 1.1 to 1.6 obtained by GPC by differential refractive index method, (D) the loss tangent (tan δ) obtained by dynamic viscoelasticity measurement has one local maximum value (tan δ (max)) within a temperature range of from −90 to −30° C., and tan δ (tan δ (max+30° C.)) at a temperature higher by 30° C. than the temperature at the local maximum value (tan δ peak temperature) is at least 0.6 relative to tan δ (tan δ (max)) at the temperature at the local maximum value.

    CATHODE BINDER COMPOSITION, CATHODE SLURRY, CATHODE, AND LITHIUM ION SECONDARY BATTERY
    3.
    发明申请
    CATHODE BINDER COMPOSITION, CATHODE SLURRY, CATHODE, AND LITHIUM ION SECONDARY BATTERY 有权
    CATHODE BINDER COMPOSITION，CATHODE SLURRY，CATHODE，和LITHIUM ION SECONDARY BATTERY

    公开(公告)号：US20160240854A1

    公开(公告)日：2016-08-18

    申请号：US15028115

    申请日：2014-10-06

    Applicant: DENKA COMPANY LIMITED

    Inventor： Yasuaki SAKURAI ,  Jun YOSHIDA ,  Jun WATANABE

    IPC: H01M4/62 ,  H01M4/131 ,  H01M10/0525 ,  C08F261/04

    CPC classification number: H01M4/622 ,  C08F261/04 ,  H01M4/131 ,  H01M4/136 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  Y02T10/7011 ,  C08F220/44

    Abstract: To provide a cathode binder composition having excellent binding properties and oxidation resistance. To further provide a cathode slurry, a cathode, and a lithium ion secondary battery produced using the cathode binder composition.The cathode binder composition contains a graft copolymer in which a monomer containing acrylonitrile as the main component is grafted onto polyvinyl alcohol having an average degree of polymerization of 300 to 3000 and a degree of saponification of 70 to 100% by mol. The cathode slurry contains the cathode binder composition, a cathode active material, and a conductive auxiliary. The cathode is produced using the cathode slurry. The lithium ion secondary battery has the cathode.

    Abstract translation: 提供具有优异的结合性和抗氧化性的阴极粘合剂组合物。 进一步提供使用阴极粘合剂组合物制造的阴极浆料，阴极和锂离子二次电池。 阴极粘合剂组合物含有以丙烯腈为主要成分的单体接枝到平均聚合度为300〜3000，皂化度为70〜100摩尔％的聚乙烯醇上的接枝共聚物。 阴极浆料包含阴极粘合剂组合物，阴极活性材料和导电助剂。 使用阴极浆料制造阴极。 锂离子二次电池具有阴极。

    BLOCK COPOLYMER, COMPOSITION, HEAT SHRINKABLE FILM, SHEET AND SHEET MOLDED ARTICLE
    4.
    发明申请
    BLOCK COPOLYMER, COMPOSITION, HEAT SHRINKABLE FILM, SHEET AND SHEET MOLDED ARTICLE 有权

    公开(公告)号：US20250122369A1

    公开(公告)日：2025-04-17

    申请号：US18715250

    申请日：2022-03-18

    Applicant: DENKA COMPANY LIMITED

    Inventor： Yuya NAKAMURA ,  Tadashi SAWASATO ,  Jun YOSHIDA

    IPC: C08L53/02 ,  C08J5/18

    Abstract: A block copolymer having a first vinyl aromatic block, a second vinyl aromatic block, and a copolymerization block, wherein an average molecular weight of the second vinyl aromatic block is equal to or less than an average molecular weight of the first vinyl aromatic block; the copolymerization block is substantially composed exclusively of the vinyl aromatic monomer unit and a conjugated diene monomer unit; a content ratio of which is 55 mass % or more and 82 mass % or less; a ratio of the first vinyl aromatic block is 50 mass % or more and 85 mass % or less; a content ratio of the copolymerization block is 38 mass % or more and 60 mass % or less; and the block copolymer has at least one peak of a loss tangent value in a range of −70 to −35° C. when a dynamic viscoelasticity measurement is performed.

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