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    ABSORBENT ARTICLE
    3.
    发明公开
    ABSORBENT ARTICLE 审中-实审

    公开(公告)号：EP4349312A1

    公开(公告)日：2024-04-10

    申请号：EP22816048.7

    申请日：2022-05-30

    申请人： Sumitomo Seika Chemicals Co., Ltd.

    发明人： SAKODA, Miki

    IPC分类号： A61F13/53 ,  A61F13/537

    摘要： Provided is an absorbent article which exhibits a better permeation rate and in which occurrence of leakage is suppressed. An absorbent article comprising: a liquid-permeable front surface sheet; a liquid-impermeable back surface sheet; and an absorbent body disposed between the front and back surface sheets, wherein the absorbent body contains a water-absorbent resin, and the water-absorbent resin has properties (A)-(C). (A) The amount of saline that can be retained is 45-70 g/g. (B) The amount of saline that can be absorbed under a load of 4.14 kPa is at least 13 ml/g. (C) The five-minute value of no-pressure DW is 50-80 ml/g.

    POLYALKYLENE OXIDE PARTICLES, COMPOSITION FOR MEDICINE, COMPOSITION FOR FORMULATION, AND FORMULATION
    4.
    发明公开
    POLYALKYLENE OXIDE PARTICLES, COMPOSITION FOR MEDICINE, COMPOSITION FOR FORMULATION, AND FORMULATION 审中-公开

    公开(公告)号：EP4242253A1

    公开(公告)日：2023-09-13

    申请号：EP22818593.0

    申请日：2022-08-31

    申请人： Sumitomo Seika Chemicals Co., Ltd.

    发明人： SAINOU, Naoki ,  SUKA, Keita

    IPC分类号： C08J3/12 ,  A61K9/14 ,  A61K47/10 ,  C08G65/08 ,  C08L71/02

    摘要： Provided are polyalkylene oxide particles that can reduce the variation in the degree of dissolution of preparations, and that can make variation less likely to occur in the degree of dissolution of preparations even if the uniformity of the polyalkylene oxide particles is disturbed by vibration or the like.
    The polyalkylene oxide particles of the present invention satisfy a viscosity ratio A (%) of 66% or more and 150% or less, wherein the viscosity ratio A is represented by the following formula: A = A 1 / A 2 × 100 wherein A1 is the 1 mass% aqueous solution viscosity (mPa·s) of particles having a particle size of 150 µm or more, and A2 is the 1 mass% aqueous solution viscosity (mPa·s) of particles having a particle size of less than 150 µm.

    RESIN DISPERSION COMPOSITION
    5.
    发明公开
    RESIN DISPERSION COMPOSITION 审中-公开

    公开(公告)号：EP4183577A1

    公开(公告)日：2023-05-24

    申请号：EP21842061.0

    申请日：2021-07-13

    申请人： Sumitomo Seika Chemicals Co., Ltd.

    发明人： OKAMOTO, Masafumi ,  FUJIWARA, Toshiaki ,  MIZUHASHI, Toshinari

    IPC分类号： B32B27/10 ,  B32B27/28 ,  C08F8/44 ,  C08J3/03 ,  C08L23/08 ,  C08L33/00 ,  C09D123/08 ,  C09D133/00 ,  C09D7/61

    摘要： This invention provides an aqueous dispersion composition comprising in a stably dispersed state a copolymer comprising an α,β-unsaturated carboxylic acid or an ester thereof as a constituent unit, the composition being characterized by having a relatively high content of the copolymer and also having relatively low viscosity. The invention also provides a production method for the aqueous dispersion composition. The production method is for producing an aqueous dispersion composition of a copolymer comprising an α,β-unsaturated carboxylic acid or an ester thereof as a constituent unit, the method comprising (1) mixing a copolymer comprising an α,β-unsaturated carboxylic acid or an ester thereof as a constituent unit, a basic substance, and water such that the concentration of the copolymer is 40 to 62 mass%, and that the copolymer is neutralized to a degree of neutralization of 10 to 35%, (2) applying a pressure of 0.1 to 2 MPa to the obtained mixture, and (3) further adding water after the pressure application to adjust the concentration of the copolymer to 30 to 60 mass%.

    LATEX COMPOSITION
    7.
    发明公开
    LATEX COMPOSITION 审中-公开

    公开(公告)号：EP4155343A1

    公开(公告)日：2023-03-29

    申请号：EP21808570.2

    申请日：2021-04-05

    申请人： Sumitomo Seika Chemicals Co., Ltd.

    发明人： SAWADA, Kohei

    IPC分类号： C08K5/06 ,  C08L23/34

    摘要： Provided are chlorosulfonated polyethylene latex having excellent film-forming properties, and a molded article (e.g., a thin film article) that is produced from the latex and has excellent tensile strength.

    PRODUCTION METHOD FOR POLYMER COMPOUND USED IN BINDER FOR SECONDARY BATTERIES
    9.
    发明公开
    PRODUCTION METHOD FOR POLYMER COMPOUND USED IN BINDER FOR SECONDARY BATTERIES 审中-公开

    公开(公告)号：EP4113668A1

    公开(公告)日：2023-01-04

    申请号：EP21760835.5

    申请日：2021-02-24

    申请人： Sumitomo Seika Chemicals Co., Ltd.

    发明人： KONO, Yuki ,  INUI, Moe ,  SAKKA, Mikio

    IPC分类号： H01M4/62 ,  C08F8/12 ,  H01M4/13 ,  H01M4/139 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48

    摘要： The present invention provides a method for producing a polymer compound for use as a binder for a secondary battery that exhibits reduced foaming when kneaded with an active material. A method for producing a polymer compound for use as a binder for a secondary battery, the polymer compound containing a repeating unit represented by formula (1) and a repeating unit represented by formula (2):

    wherein each R 1 is independently a hydrogen atom or a methyl group, and each R 2 is independently an NH 2 group, an OH group, an ONa group, or an OLi group, the method comprising the steps of copolymerizing monomers for forming the polymer compound in the presence of an azo polymerization catalyst; and saponifying the resulting copolymer.