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公开(公告)号：US20240002623A1
公开(公告)日：2024-01-04
申请号：US18368441
申请日：2023-09-14
申请人： JSP Corporation
发明人： Shota TAKAGI , Masaharu OIKAWA
摘要： The present invention relates to an in-mold expanded beads molded article of expanded beads of an olefin thermoplastic elastomer, a cushion for shoe sole, and a method of producing expanded beads provided with through-holes and composed of a block copolymer of a polyethylene block and an ethylene/α-olefin copolymer block, and with respect to the in-mold expanded beads molded article of expanded beads of an olefin thermoplastic elastomer, a voidage of the expanded beads molded article is 5 to 40%; a density of the expanded beads molded article is 30 to 150 g/L; and a flexural modulus of the olefin thermoplastic elastomer that constitutes the expanded beads molded article is 10 to 100 MPa.
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82.发明授权公开(公告)号：US11732101B2
公开(公告)日：2023-08-22
申请号：US17790997
申请日：2021-01-21
申请人： JSP CORPORATION
发明人： Tomohito Shimada , Hajime Ohta
CPC分类号： C08J9/16 , B32B1/00 , B32B5/18 , B32B27/065 , B32B27/32 , C08J9/224 , C08J9/228 , B32B2266/025 , B32B2307/72 , C08J2323/12 , C08J2423/12
摘要： An expanded bead having a through hole and including a foamed core layer which defines the through hole therein and which is constituted of a resin composition containing two kinds of polypropylene-based resins having different melting points, and a cover layer covering the foamed core layer and constituted of a polyolefin-based resin. The expanded bead gives a DSC curve in which an endothermic peak intrinsic to the resin composition and another endothermic peak on a higher temperature side thereof appear in a specific heat of fusion ratio. Molded articles include a multiplicity of the expanded beads.
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公开(公告)号：US11273621B2
公开(公告)日：2022-03-15
申请号：US16731302
申请日：2019-12-31
申请人： JSP CORPORATION
摘要： A laminated foam sheet having a polyethylene resin foam layer and an outer layer laminated on each side of the foam layer, each outer layer being composed of an outermost surface polyethylene resin layer and an intermediate polyethylene resin layer which is positioned between the outermost surface layer and the foam layer and which contains a specific amount of a polymeric antistatic agent relative to the weight of the intermediate layer and to the basis weight of each of the intermediate layer and outermost surface layer.
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公开(公告)号：US20220017421A1
公开(公告)日：2022-01-20
申请号：US17311531
申请日：2019-12-23
摘要： Provided is a structure having both fire resistance and heat insulation properties and capable of retaining its shape without being collapsed or deformed even when exposed to a flame. The present invention provides a fire-resistant heat-insulation composition comprising 70 to 250 parts by mass of gypsum based on 100 parts by mass of calcium aluminate having a CaO content of 34% or more, and 0.1 to 20 parts by mass of a fibrous inorganic clay mineral having a crystallization water ratio of 5% or more, based on 100 parts by mass of the total of the calcium aluminate and the gypsum.
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公开(公告)号：US11208537B2
公开(公告)日：2021-12-28
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：US20210189089A1
公开(公告)日：2021-06-24
申请号：US17273232
申请日：2019-09-04
申请人： JSP Corporation
发明人： Tatsuya HAYASHI , Akinobu HIRA
IPC分类号： C08J9/18
摘要： A polyamide-based resin expanded bead comprising a foam layer formed by expanding a polyamide-based resin, wherein on a first DSC curve and a second DSC curve, the first DSC curve has a melting peak (intrinsic peak) having a peak top temperature on a low temperature side equal to or lower than a peak top temperature of a melting peak of the second DSC curve and a melting peak (high temperature peak) having a peak top temperature on a high temperature side exceeding the peak top temperature of the second DSC curve, and, the peak top temperature of the melting peak of the second DSC curve is 180° C. or higher and 280° C. or lower, and the polyamide-based resin expanded bead has an apparent density of 10 to 300 kg/m3 and a closed cell ratio of 85% or more.
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公开(公告)号：US10974435B2
公开(公告)日：2021-04-13
申请号：US15528993
申请日：2015-12-11
申请人： JSP CORPORATION
发明人： Masahiro Gomibuchi , Toshio Morita
IPC分类号： B29C49/04 , B29C33/20 , B29C49/42 , B29C49/00 , B29C49/18 , B29C49/58 , B29C49/46 , B29C49/56 , B29K105/04
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：US20210095091A1
公开(公告)日：2021-04-01
申请号：US16634637
申请日：2018-08-01
申请人： JSP Corporation
IPC分类号： C08J9/16
摘要： The present invention relates to expanded thermoplastic urethane-based elastomer beads including, as a base material, a thermoplastic urethane-based elastomer having a melting point Tm of 175° C. or higher and such a glass transition temperature Tg that a difference (Tm-Tg) between the melting point Tm and the glass transition temperature Tg is 200° C. or more.
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公开(公告)号：US10893750B2
公开(公告)日：2021-01-19
申请号：US16062644
申请日：2016-12-20
申请人： JSP CORPORATION
IPC分类号： A47C7/18 , B60N2/90 , A47C27/14 , A47C7/24 , B60N2/68 , B29C39/10 , B60N2/70 , B29L31/58 , B60N2/58
摘要： A method for producing a seat core material that has a foamed molded substrate and a frame member embedded in a periphery thereof, which includes, as step (a), heating thermoplastic resin expanded beads in a mold cavity, in which the frame member has been disposed, to fusion-bond the expanded beads to each other and to obtain the foamed molded substrate with the frame member being embedded in the periphery thereof; and, as step (b), simultaneously with step (a) or after step (a), forming a void cavity S, S′ in the foamed molded substrate at a position along and adjacent to the frame member. The void cavity S, S′ has a size and shape that allows a relative displacement between the frame member and the foamed molded substrate when the foamed molded substrate shrinks after step (b).
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公开(公告)号：US10793694B2
公开(公告)日：2020-10-06
申请号：US15578608
申请日：2016-05-25
申请人： JSP Corporation
IPC分类号： C08J9/18 , C08J9/228 , B29C44/34 , C08J9/232 , B29C44/44 , C08L75/04 , B29K75/00 , B29K105/04 , B29K101/12
摘要： Provided are expanded beads capable of providing an expanded thermoplastic polyurethane beads molded article which is excellent in physical properties, such as compression characteristics, repulsion elasticity, etc., and an expanded thermoplastic polyurethane beads molded article. Expanded beads of thermoplastic polyurethane, wherein a Shore A hardness of the thermoplastic polyurethane is 85 or more; an average cell diameter of the expanded beads is 50 to 300 μm; and a closed cell ratio when bisecting the expanded thermoplastic polyurethane bead is 60% or more; and an expanded thermoplastic polyurethane beads molded article obtained through in-mold molding of the same are disclosed.
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