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    VEHICLE SEAT CORE MATERIAL
    1.
    发明公开
    VEHICLE SEAT CORE MATERIAL 审中-公开

    公开(公告)号：US20230167260A1

    公开(公告)日：2023-06-01

    申请号：US17995082

    申请日：2021-03-26

    Applicant: JSP Corporation

    Inventor： Keiichi HASHIMOTO ,  Katsunori HISAMATSU ,  Shogo IWASAKI

    IPC: C08J9/228 ,  C08J9/00 ,  C08J9/224 ,  B60N2/70

    CPC classification number: C08J9/228 ,  C08J9/0061 ,  C08J9/224 ,  B60N2/70 ,  C08J2323/12 ,  C08J2423/06 ,  C08J2203/22

    Abstract: A vehicle seat core material includes a molded article that includes thermoplastic resin expanded beads. The molded article has a substantially rectangular shape in a top view, and has a front side and a rear side opposite the front side. The molded article has an average density (Z) of 20 kg/m3 to 50 kg/m3. The molded article includes, on the rear side of the molded article, a rear thin portion having a thickness of 10 mm to 40 mm, the thickness of the rear thin portion being smaller than an average thickness of the molded article. A ratio (Y/Z) of a density (Y) of the rear thin portion to the average density (Z) of the molded article is 1.05 to 3. The rear thin portion of the molded article has a fusion rate of 70% or more.

    VEHICLE SEAT CORE MEMBER
    2.
    发明申请
    VEHICLE SEAT CORE MEMBER 审中-公开

    公开(公告)号：US20190014907A1

    公开(公告)日：2019-01-17

    申请号：US16067645

    申请日：2017-02-03

    Applicant: JSP CORPORATION

    Inventor： Katsunori HISAMATSU ,  Atsuo TAKAYAMA ,  Keiichi HASHIMOTO

    IPC: A47C7/20 ,  A47C27/14

    Abstract: There is provided a vehicle seat core member that is superior in terms of a dimensional accuracy as well as integrity of a thermoplastic resin expanded beads molded body and a frame member. A vehicle seat core member (100) is formed as an integrally molded article of a thermoplastic resin expanded beads molded body (10) and a frame member (20), the thermoplastic resin expanded beads molded body (10) is formed of thermoplastic resin expanded beads (30) having through holes (32), and a porosity of the thermoplastic resin expanded beads molded body (10) is 10 vol % or more and 40 vol % or less.

    SEAT CORE MATERIAL
    3.
    发明申请
    SEAT CORE MATERIAL 审中-公开

    公开(公告)号：US20200238870A1

    公开(公告)日：2020-07-30

    申请号：US16486269

    申请日：2018-02-15

    Applicant: JSP CORPORATION

    Inventor： Atsuo TAKAYAMA ,  Keiichi HASHIMOTO ,  Katsunori HISAMATSU

    IPC: B60N2/70

    Abstract: A seat core material of the present invention is a seat core material for vehicle including a thermoplastic resin expanded bead article and a frame member embedded in a peripheral edge portion of the expanded bead article. The frame member includes a front frame part, a rear frame part, and two side frame parts interconnecting the front frame part and the rear frame part. Slits crossing the two side frame parts are formed along a longitudinal direction with continuous parts left intact outside the side frame parts on both ends of the expanded bead article. The slit penetrates or does not penetrate the expanded bead article in a thickness direction. The continuous parts are formed in a curved shape or a bent shape.

    METHOD FOR MANUFACTURING LAMINATE
    5.
    发明公开
    METHOD FOR MANUFACTURING LAMINATE 审中-公开

    公开(公告)号：US20240017451A1

    公开(公告)日：2024-01-18

    申请号：US18033741

    申请日：2021-10-08

    Applicant: JSP Corporation

    Inventor： Katsunori HISAMATSU ,  Keiichi HASHIMOTO

    IPC: B29C44/20 ,  B29K23/00 ,  B29K105/04

    CPC classification number: B29C44/206 ,  B29K2023/00 ,  B29K2995/0082 ,  B29K2995/0094 ,  B29K2105/048

    Abstract: The present invention relates to a method for producing a laminate, wherein the laminate is obtained by integrally laminating an expanded beads molded article (a) composed of expanded beads A and having interconnected voids and an expanded beads molded article (b) composed of expanded particles B and having interconnected voids, the difference [Pb−Pa] between the voidage (Pa) of the expanded beads molded article (a) and the voidage (Pb) of the expanded beads molded article (b) is 5% or more, and the expanded beads A and the expanded beads B satisfy the following (1) to (3): (1) a difference [dB−dA] between an average hole diameter (dA) of the through-holes of the expanded beads (A) and an average hole diameter (dB) of the through-holes of the expanded beads (B) is 0.3 mm or more and 2 mm or less; (2) the expanded beads (B) have an average outer diameter DB of 3.5 mm or more and 5 mm or less; (3) a difference [DB−DA] between an average outer diameter DA of the expanded beads (A) and an average outer diameter DB of the expanded beads (B) is −0.3 mm or more and 2 mm or less.

    SEAT CORE MATERIAL
    6.
    发明申请
    SEAT CORE MATERIAL 审中-公开

    公开(公告)号：US20200001760A1

    公开(公告)日：2020-01-02

    申请号：US16484264

    申请日：2018-02-06

    Applicant: JSP CORPORATION

    Inventor： Keiichi HASHIMOTO ,  Katsunori HISAMATSU ,  Atsuo TAKAYAMA

    IPC: B60N2/70 ,  B29C44/12 ,  B29C44/34

    Abstract: A seat core material of the present invention is a seat core material for vehicle including: a thermoplastic resin expanded bead article; and a frame member embedded in a peripheral edge portion of the expanded bead article. The expanded bead article has two or more lightening parts in an area from a center portion as seen in a front-back direction to a rear side. A through or non-through slit is provided in a continuous part between the lightening parts or an area in front of the continuous part over a distance of 100 mm or less along a vehicle-width direction of the expanded bead article. The slit is closed at both longitudinal ends.

    CORE MEMBER
    8.
    发明公开
    CORE MEMBER 审中-公开

    公开(公告)号：US20240109271A1

    公开(公告)日：2024-04-04

    申请号：US18285420

    申请日：2022-03-29

    Applicant: JSP CORPORATION

    Inventor： Katsunori HISAMATSU ,  Keiichi HASHIMOTO

    IPC: B32B5/18 ,  B32B27/06 ,  B32B27/32 ,  B32B27/40 ,  C08J9/228

    CPC classification number: B32B5/18 ,  B32B27/065 ,  B32B27/32 ,  B32B27/40 ,  C08J9/228 ,  B60N3/048 ,  C08J2375/04

    Abstract: A core member used for a laminate in which polyurethane foam is laminated on the core member made of a thermoplastic resin expanded beads molded article, such that the molded article in which expanded beads having through holes are mutually fused, an average porosity of the expanded beads molded article is between 10% and 25%, and on a surface of the expanded beads molded article, a ratio of a total opening area of the through hole portions of the expanded beads to a surface area of the expanded beads molded article is between 2% and 5%, an average opening area of the through hole portions of the expanded beads is between 5 mm2 and 20 mm2, and the ratio of the number of through hole portions having an opening area of 2 mm2 or more to the number of through hole portions of the expanded beads is 60% or less.

    CORE MATERIAL OF VEHICULAR SEAT CUSHION
    9.
    发明申请
    CORE MATERIAL OF VEHICULAR SEAT CUSHION 审中-公开

    公开(公告)号：US20200000235A1

    公开(公告)日：2020-01-02

    申请号：US16489033

    申请日：2018-02-26

    Applicant: JSP Corporation

    Inventor： Keiichi HASHIMOTO ,  Katsunori HISAMATSU

    IPC: A47C7/20 ,  A47C27/14

    Abstract: Provided is a core material of a seat cushion for a vehicle. The core material includes: a thermoplastic resin expanded beads molded article 2 that has a substantially rectangular shape in a top view, the rectangular shape having a long side and a short side; and an annular reinforcing member 3 that is insert-molded in the peripheral edge part of the expanded beads molded article. A missing part 4 is formed in the expanded beads molded article, the missing part passing through in the thickness direction. A slit 7 is formed in at least one corner of the lightening part, the slit being oriented outward from the expanded beads molded article from the vicinity of the corner part.

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