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公开(公告)号：US20200247094A1
公开(公告)日：2020-08-06
申请号：US16740609
申请日：2020-01-13
申请人： JSP CORPORATION
发明人： Ryuichi TANIGUCHI , Hirotoshi KAKUTA , Takashi ORI
摘要： A laminated foam sheet having a polyethylene resin foam layer and an antistatic polyethylene layer laminated on one or both sides thereof is produced by coextruding melts for respective layers, wherein the melt for the antistatic layer contains a polyethylene resin, an ionomer resin antistatic agent and a specific amount of volatile plasticizer blend containing an alcohol and a saturated hydrocarbon or a dialkyl ether. The antistatic layer of the obtained laminated foam sheet has specific morphology.
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公开(公告)号：US10717370B2
公开(公告)日：2020-07-21
申请号：US16067645
申请日：2017-02-03
申请人： JSP CORPORATION
IPC分类号： B32B1/02 , B60N2/005 , B60N2/90 , B29C67/20 , B60N2/70 , B29C44/44 , C08J9/232 , B60N2/68 , A47C7/00 , A47C7/02 , A47C7/16 , A47C7/20 , A47C27/14 , B29L31/00 , B29K105/04
摘要： 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.
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公开(公告)号：US20200207897A1
公开(公告)日：2020-07-02
申请号：US16631415
申请日：2018-07-20
申请人： JSP Corporation
发明人： Kenji HARAGUCHI , Jumpei GOTO
IPC分类号： C08F257/02
摘要： The present invention relates to a styrene-based resin having a weight average molecular weight Mw′ as determined by the GPC-MALS method of 1,000,000 or more and 5,000,000 or less, a degree of long-chain branching of 0.2 or more per 1,000 styrene units, and a tetrahydrofuran-insoluble matter of 0.1% by weight or less (including 0), the styrene-based resin being free from a component derived from a polyfunctional monomer in a molecular chain thereof. In a method for producing this styrene-based resin, in an impregnation step of adding a polymerization initiator and a styrene monomer in an aqueous medium, thereby impregnating the polymerization initiator and the styrene monomer in the seed particle at a temperature at which polymerization of the styrene monomer does not substantially proceed, the amount of the styrene monomer is 20 to 200 parts by weight based on 100 parts by weight of the seed particle; and in an additional impregnation polymerization step of graft polymerizing the styrene monomer on the styrene-based resin, the addition amount of the styrene monomer is 50 to 700 parts by weight based on 100 parts by weight of the seed particle, and the content of the styrene monomer in the seed particle is held at 10% by weight or less.
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公开(公告)号：US20200000235A1
公开(公告)日：2020-01-02
申请号：US16489033
申请日：2018-02-26
申请人： JSP Corporation
摘要： 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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公开(公告)号：US20190350365A1
公开(公告)日：2019-11-21
申请号：US16474225
申请日：2017-12-27
申请人： JSP CORPORATION
摘要： A seat core material having reduced deformation, extremely excellent dimensional accuracy, sense of unity, and strength is thus provided. The frame member and the foamed particle molding are integrated in the seat core material.
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公开(公告)号：US10385178B2
公开(公告)日：2019-08-20
申请号：US15111760
申请日：2014-12-24
申请人： JSP Corporation
发明人： Michitoshi Ono , Taizo Kitahara , Kazuo Tsurugai
摘要： The present invention is concerned with expanded propylene resin beads including a core layer being in a foamed state and constituted of a propylene-based resin composition (a) and a cover layer constituted of an olefin-based resin (b), the propylene-based resin composition (a) satisfying the following (i) and (ii), and the olefin-based resin (b) satisfying the following (iii) or (iv). (i) A mixture of 75% by weight to 98% by weight of a propylene-based resin (a1) having a melting point of 100° C. to 140° C. and 25% by weight to 2% by weight of a propylene-based resin (a2) having a melting point of 140° C. to 165° C. (ii) A difference between the melting point of the resin (a2) and the melting point of the resin (a1) is 15° C. or more. (iii) A crystalline olefin-based resin having a melting point TmB that is lower than a melting point TmA of the composition (a) and having a relation of 0° C.
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97.发明申请公开(公告)号：US20190153189A1
公开(公告)日：2019-05-23
申请号：US16313236
申请日：2017-05-12
申请人： JSP Corporation
摘要： An in-mold molded article of expanded thermoplastic polyurethane beads containing a colorant, wherein when an average surface cell wall thickness of the in-mold molded article is 20 μm or more, the expanded TPU beads molded article is high in uniformity of color and good in color developing properties. Expanded thermoplastic polyurethane beads containing a colorant, wherein when an apparent density of the expanded beads is 80 to 300 kg/m3, an average cell diameter of the expanded beads is 100 to 400 μm, and an average surface cell wall thickness of the expanded beads is 15 μm or more, a molded article resulting from in-mold molding of the expanded beads is suppressed in color unevenness and has high uniformity of color.
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98.发明授权公开(公告)号：US10279558B2
公开(公告)日：2019-05-07
申请号：US13735375
申请日：2013-01-07
申请人： JSP CORPORATION
摘要： A method for producing a skin-covered foamed molded article including blow-molding a parison in a mold cavity to form a skin consisting of a hollow molded body, in which the parison is in a softened state by extruding a molten thermoplastic resin, filling expanded beads in the hollow molded body, and heating and fusion bonding the beads by supplying steam via a steam supply pipe inserted into the hollow molded body. The parison is in contact with a protruding portion, formed by protrusion from an inner surface of the mold cavity to an inside of the cavity, forming a recessed portion having a shape corresponding to the protruding portion in the inward direction of the hollow molded body. A steam hole is formed in the recessed portion, a steam supply pipe is inserted into the body, and the expanded beads are heated and fusion bonded by supplying steam.
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公开(公告)号：US20190112444A1
公开(公告)日：2019-04-18
申请号：US16088713
申请日：2017-03-27
申请人： JSP Corporation
摘要： Provided are spherical expanded beads obtained through expansion of thermoplastic polyurethane beads, wherein a bead mass of the expanded beads is 3 to 12 mg, and a ratio of a long diameter to a short diameter of the expanded bead (long diameter/short diameter) is 1.5 or less; an apparent density of the expanded beads is 80 to 300 kg/m3; an average cell diameter Da of the expanded beads is 80 to 300 μm; and a closed cell ratio of the expanded beads is 80% or more.
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100.发明申请公开(公告)号：US20190100640A1
公开(公告)日：2019-04-04
申请号：US16088746
申请日：2017-02-03
申请人： JSP Corporation
摘要： The present invention is concerned with expanded beads of thermoplastic polyurethane in which a water-soluble anionic surfactant is attached at 50 mg/m2 to 1,000 mg/m2 onto the surfaces of expanded beads of thermoplastic polyurethane having a dispersant attached thereto; and a method for producing an expanded beads molded article, including filling the expanded beads of thermoplastic polyurethane in a mold for molding and heating with a water vapor to mutually fuse the expanded beads with each other. The present invention provides expanded beads from which an expanded TPU beads molded article having excellent tensile strength and a method for producing an expanded TPU beads molded article.
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