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公开(公告)号：US20200032024A1
公开(公告)日：2020-01-30
申请号：US16337690
申请日：2017-10-02
申请人： JSP CORPORATION
发明人： Shota TAKAGI , Masaharu OIKAWA
摘要： The present invention is concerned with an expanded beads molded article of expanded beads comprising a crosslinked multi-block copolymer containing a polyethylene block and an ethylene/α-olefin copolymer block, wherein a density is 40 to 150 g/L; a gel fraction by a hot xylene extraction method is 30 to 70% by weight; a tensile elongation is 120% or more; a bead weight of the expanded beads is 0.8 to 8 mg; and the number of expanded beads per unit area on a surface of the expanded beads molded article is 5 to 30 per cm2, and is able to provide an expanded beads molded article which is light in weight and favorable in surface properties, fusion bondability, and durability.
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22.发明申请公开(公告)号：US20190382550A1
公开(公告)日：2019-12-19
申请号：US16463755
申请日：2017-11-15
申请人： JSP Corporation
摘要： The present invention provides expanded beads of thermoplastic polyurethane, wherein the thermoplastic polyurethane constituting the expanded beads is an ether-based thermoplastic polyurethane, and a difference (T1−T2) between a melting peak temperature (T1) and a melting peak temperature (T2) is from 0 to 8° C., wherein the melting peak temperature (T1) is a melting peak temperature at the time of first heating in a DSC curve obtained by heating the expanded beads from 20° C. to 260° C. at a heating rate of 10° C./min, the melting peak temperature (T2) is a melting peak temperature at the time of second heating in a DSC curve obtained by cooling from 260° C. to 20° C. at a cooling rate of 10° C./min after the first heating and further heating again from 20° C. to 260° C. at a heating rate of 10° C./min, and the DSC curves are obtained by the heat flux differential scanning calorimetry in conformity with JIS K7121-1987. The expanded beads of thermoplastic polyurethane not only have excellent surface appearance and fusion bonding properties but also have a low shrinkage factor.
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公开(公告)号：US20190099002A1
公开(公告)日：2019-04-04
申请号：US16089624
申请日：2017-02-17
申请人： JSP CORPORATION
发明人： Seishiro MURATA , Hiroyuki ITO
摘要： A long synthetic resin foam body composed of a thermoplastic resin expanded beads-molded substrate and a frame having displacement regulating sections provided at both ends in the longitudinal or lateral direction of the substrate and a connecting section that connects the displacement regulating sections to each other. The substrate has at least one joint forming portion that divides the substrate in a direction intersecting the connecting section into two or more substrate parts. The joint forming portion has a joint that connects the adjacent two substrate parts to each other and is deformable to permit a relative displacement between the adjacent two substrate parts when the substrate contracts or expands.
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公开(公告)号：US10232534B2
公开(公告)日：2019-03-19
申请号：US14322257
申请日：2014-07-02
申请人： JSP CORPORATION
发明人： Tomoo Tokiwa
IPC分类号： B29C44/20 , B29C44/08 , B29C44/18 , B29C49/00 , B29K23/00 , B29L31/30 , B29C49/04 , B29C44/34 , B29K105/04 , B29C49/22 , B29C49/46
摘要： A method for producing a skin-covered polyolefin-based resin foamed molded article, including blow-molding a polyolefin parison into a skin defining a hollow space; and placing multi-layered polyolefin expanded beads in the hollow space; and heating the expanded beads placed in the hollow space to fuse-bond the expanded beads together and to fuse-bond the expanded beads to the skin, wherein the expanded beads have specific apparent density, specific average diameter, specific endothermic peaks in their DSC curve and specific melting point characteristics.
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公开(公告)号：US10195966B2
公开(公告)日：2019-02-05
申请号：US15558498
申请日：2016-03-04
申请人： JSP Corporation
摘要： A seat core member of a seat portion provided with the seat core member made of a hard synthetic resin foam and a cushion layer made of a soft synthetic resin foam and covering the seat core member is provided, and the seat core member includes a plurality of ridges extending in a rising direction of the seat core member in a rising portion of the seat core member being in contact with the cushion layer and opposing to calves of a body is formed.
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公开(公告)号：US20190014907A1
公开(公告)日：2019-01-17
申请号：US16067645
申请日：2017-02-03
申请人： JSP CORPORATION
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：US10106664B2
公开(公告)日：2018-10-23
申请号：US15580308
申请日：2016-06-03
申请人： JSP CORPORATION
发明人： Takuya Chiba , Masaharu Oikawa
摘要： Thermoplastic resin foamed particles of the present invention including more than one functional additive selected from inorganic powder and inorganic fibers each includes a core layer formed of a thermoplastic resin and a coating layer in a foamed state formed of a thermoplastic resin, the mass ratio of the coating layer to the core layer is 99:1 to 50:50, the content (X) of the functional additive in the core layer is 5 to 90% by mass, and the content of the functional additive in the coating layer is smaller than the content (X) of the functional additive in the core layer. By this way, thermoplastic resin foamed particles from which a homogeneous foamed particle molding having excellent dimension stability, fusibility and appearance can be obtained while containing functional additive are provided.
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公开(公告)号：US20180163010A1
公开(公告)日：2018-06-14
申请号：US15580308
申请日：2016-06-03
申请人： JSP CORPORATION
发明人： Takuya CHIBA , Masaharu OIKAWA
CPC分类号： C08J9/16 , B29B9/06 , B29C44/02 , B29C44/3415 , B29C44/3461 , B32B5/18 , B32B27/18 , C08J9/0061 , C08J9/008 , C08J9/122 , C08J9/18 , C08J9/228 , C08J9/232 , C08J2201/034 , C08J2203/06 , C08J2205/044 , C08J2205/052 , C08J2207/00 , C08J2323/12 , C08J2323/14 , C08J2423/14
摘要： Thermoplastic resin foamed particles of the present invention including more than one functional additive selected from inorganic powder and inorganic fibers each includes a core layer formed of a thermoplastic resin and a coating layer in a foamed state formed of a thermoplastic resin, the mass ratio of the coating layer to the core layer is 99:1 to 50:50, the content (X) of the functional additive in the core layer is 5 to 90% by mass, and the content of the functional additive in the coating layer is smaller than the content (X) of the functional additive in the core layer. By this way, thermoplastic resin foamed particles from which a homogeneous foamed particle molding having excellent dimension stability, fusibility and appearance can be obtained while containing functional additive are provided.
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公开(公告)号：US20180009152A1
公开(公告)日：2018-01-11
申请号：US15528993
申请日：2015-12-11
申请人： JSP CORPORATION
发明人： Masahiro GOMIBUCHI , Toshio MORITA
CPC分类号： B29C49/18 , B29C33/20 , B29C49/0005 , B29C49/04 , B29C49/4247 , B29C49/4252 , B29C49/56 , B29C49/58 , B29K2105/04
摘要： A method for producing a foamed blow-molded article, which includes extruding a physical blowing agent-containing foamable molten resin downwardly through a annular die to form a tubular foamed parison, clamping the foamed parison between split molds, and then blow molding it. At the latest before completion of the clamping of the foamed parison between the split molds, a gas is blown toward an inner peripheral surface of an upper portion of the foamed parison, the bottom portion of which has been closed, from a gas ejection outlet located within the foamed parison at a position immediately below the annular die to widen the foamed parison.
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公开(公告)号：US09815956B2
公开(公告)日：2017-11-14
申请号：US14824564
申请日：2015-08-12
申请人： JSP CORPORATION
发明人： Masaomi Shima
CPC分类号： C08J9/22 , C08J9/141 , C08J9/16 , C08J9/232 , C08J2203/14 , C08J2351/06
摘要： An expandable composite resin bead containing an organic physical blowing agent and a base resin composed of a composite resin obtained by polymerizing a styrene monomer in a polypropylene resin. The styrene monomer is polymerized in an amount of more than 400 parts by mass and not more than 1900 parts by mass with respect to 100 parts by mass of the polypropylene resin. The composite resin contains xylene solubles to be obtained through xylene solvent Soxhlet extraction of the expandable composite resin bead, the xylene solubles contain acetone solubles to be obtained through dissolution of the xylene solubles into acetone, and the acetone solubles have an absorbance ratio A (D698/D1376) of an absorbance D698 to an absorbance D1376 that are respectively measured at a wavenumber of 698 cm−1 and 1376 cm−1 as infrared absorption spectra of the acetone solubles within a range of from 8.5 to 23.
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