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    Adhesive hydrogel and medical electrode using the same
    62.
    发明授权
    Adhesive hydrogel and medical electrode using the same 有权

    公开(公告)号：US11375952B2

    公开(公告)日：2022-07-05

    申请号：US16651700

    申请日：2018-09-27

    Applicant: SEKISUI PLASTICS CO., LTD.

    Inventor： Takaaki Hatori ,  Takahiko Fujita ,  Kazuhiro Yoshikawa

    IPC: A61B5/00 ,  C08F220/56 ,  C09J11/04 ,  C09J11/06 ,  C09J133/26 ,  A61B5/288

    Abstract: An adhesive hydrogel has low contact resistance against the body surface and excellent conformability and adhesiveness to the body surface, so that noise generation can be reduced. Such adhesive hydrogel enables measurements of weak fetal heart rate signals. The adhesive hydrogel includes a polymer matrix prepared by crosslinking-copolymerization of an acrylamide derivative, which is a nonionic polymerizable monomer including a polymerizable carbon-carbon double bond in a molecule, and polyfunctional (meth)acrylamide, which is a crosslinkable monomer comprising 2 or more polymerizable carbon-carbon double bonds in a molecule, water, a polyvalent alcohol, and an electrolyte salt, wherein a laminate of the adhesive hydrogel with an Ag/AgCl sheet exhibits the impedance of 1Ω to 100Ω at the frequency of 0.1 Hz measured in accordance with the method of ANSI/AAMI EC12:2000, and the dynamic elastic modulus G′ at the frequency of 1 Hz measured at 25° C. and dispersed frequencies is 1.0×103 Pa to 1.0×104 Pa.

    Gel sheet
    63.
    发明授权
    Gel sheet 有权

    公开(公告)号：US11197991B2

    公开(公告)日：2021-12-14

    申请号：US16313078

    申请日：2017-06-27

    Applicant: SEKISUI PLASTICS CO., LTD.

    Inventor： Kazuki Kato ,  Ryo Iizuka ,  Takaaki Hatori ,  Takashi Motomura ,  Kazuhiro Yoshikawa ,  Yoshiki Nakayama

    IPC: A61N1/04

    Abstract: An object of the present invention is to provide a gel sheet comprising an intermediate base, having no variation in adhesiveness.
    A gel sheet 1 comprising a gel material 10 and an intermediate base 20 embedded in the gel material 10, wherein when T represents the thickness of the gel sheet 1, and S represents the amplitude of the intermediate base 20, a relation represented by the following expression (1) is satisfied: S/T≤0.4  (1)

    VEHICLE SEAT CORE AND SEAT PAD
    66.
    发明申请
    VEHICLE SEAT CORE AND SEAT PAD 审中-公开

    公开(公告)号：US20200282886A1

    公开(公告)日：2020-09-10

    申请号：US16641075

    申请日：2018-08-14

    Applicant: SEKISUI PLASTICS CO., LTD.

    Inventor： Atsushi FUKUTA

    IPC: B60N2/70 ,  A47C7/18 ,  B29C44/12

    Abstract: The present invention provides means for improving bondability between a vehicle seat core and a cushion in a vehicle seat pad formed by integration of them without significantly impairing mechanical properties. A vehicle seat core is characterized in that it is a vehicle seat core for forming a vehicle seat pad by integration with a cushion, which comprises a foamed resin molded body obtained by filling a cavity of a mold with a plurality of foamed resin particles and performing in-mold foam molding, and that at least a partial region of a surface of the foamed resin molded body to which the cushion is bonded when forming the vehicle seat pad has a surface expansion rate of 40% to 85%, and the foamed resin molded body has a first fusion rate of 95% or more or a second fusion rate of 60% or more.

    HYDROGEL
    68.
    发明申请
    HYDROGEL 审中-公开

    公开(公告)号：US20200016300A1

    公开(公告)日：2020-01-16

    申请号：US16338308

    申请日：2017-09-22

    Applicant: SEKISUI PLASTICS CO., LTD.

    Inventor： Ryo IIZUKA ,  Kazuki KATO

    IPC: A61L31/14 ,  A61L31/04 ,  C08J3/075 ,  C09J7/30 ,  C09J11/06 ,  C09J11/04 ,  C08F222/38 ,  B32B27/30 ,  B32B27/18

    Abstract: A hydrogel 1 having a laminate structure of layer A 10 and layer B 20, wherein layer A 10 contains a monomer-derived component, water, a humectant, a water-insoluble polymer having tackiness and an amphiphilic polymer, the water-insoluble polymer is contained in a proportion of 3 to 20 wt % based on a total amount of layer A, and the amphiphilic polymer is a polyvinyl alcohol having a saponification degree of 50 to 75% and is contained in a proportion of 0.05 to 5 wt % based on the total amount of layer A; layer B 20 contains a monomer-derived component, water and a humectant and is substantially free of a water-insoluble polymer having tackiness and a polyvinyl alcohol; and an amount of the water based on a total amount of layer B is the amount of water based on the total amount of layer A±10 wt %.

    Foamable polystyrene resin particles and polystyrene resin prefoamed particles
    69.
    发明授权
    Foamable polystyrene resin particles and polystyrene resin prefoamed particles 有权

    公开(公告)号：US10358538B2

    公开(公告)日：2019-07-23

    申请号：US15617823

    申请日：2017-06-08

    Applicant: SEKISUI PLASTICS CO., LTD.

    Inventor： Hiroyuki Tarumoto ,  Ryosuke Chinomi

    IPC: C08J9/16 ,  C08J9/04 ,  C08J9/18 ,  C08J9/14 ,  C08J9/00 ,  C08J9/232

    Abstract: In foamable polystyrene resin particles that are obtained by granulating a polystyrene resin containing a flame retardant and a foaming agent, the flame retardant has a bromine atom in a molecule, contains less than 70% by mass of bromine, has a benzene ring in a molecule, and has a 5% by mass decomposition temperature in a range of from 200° C. to 300° C. the flame retardant is the sole source of bromine in the foamable polystyrene resin particles, a ratio (B:A) between (A) a by mass of the flame retardant contained in the total foamable polystyrene resin particles and (B) a % by mass of the flame retardant contained in the surface of the resin particles is in a range of from 0.8:1 to 1.2:1, and the amount of the flame retardant added is in a range of from 0.5% by mass to 5.0% by mass, based on 100 parts by mass of the resin fraction in the foamable polystyrene resin particles.

    VEHICLE SEAT MEMBER AND METHOD OF MANUFACTURING SAME
    70.
    发明申请
    VEHICLE SEAT MEMBER AND METHOD OF MANUFACTURING SAME 审中-公开

    公开(公告)号：US20190217759A1

    公开(公告)日：2019-07-18

    申请号：US16324371

    申请日：2017-08-09

    Applicant: SEKISUI PLASTICS CO., LTD.

    Inventor： Yushi SAKAKIBARA

    IPC: B60N2/70 ,  B60N2/68 ,  B29C44/12

    Abstract: Provided is a method for suppressing deformation by contraction after molding of a vehicle seat member comprising a foamed resin molded body embedding a frame member. The method manufactures a vehicle seat member (1) including a foamed resin molded body (100) and a frame member (200) at least a part of which is embedded therein in which the frame member (200) includes frameworks (250), (260) extending inside the foamed resin molded body (100) along an outer shape (400) of the vehicle seat member (1) in plan view. The method comprises forming gaps (101), (101), (102), (102) along an extending direction of the frameworks (250), (260) between at least a part of the frameworks (250), (260) and a part of the foamed resin molded body (100) located on an outer side of the at least a part of the frameworks (250), (260).

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