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公开(公告)号：US11225562B2
公开(公告)日：2022-01-18
申请号：US16333479
申请日：2017-09-15
申请人： JSP Corporation
发明人： Shota Takagi , Masaharu Oikawa
摘要： The present invention provides expanded beads comprising a crosslinked multi-block copolymer containing an ethylene block and an ethylene-α-olefin copolymer block, having an apparent density of 40 to 300 g/L, a gel fraction of 30 to 70% by weight by a hot xylene extraction method, an average cell diameter (a) of 50 to 180 μm, and an average surface layer thickness (b) of 3 to 27 μm, and the expanded beads are excellent in in-mold moldability, and can produce an expanded beads molded article being excellent in tensile characteristics in a well balanced manner.
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公开(公告)号：US11174365B2
公开(公告)日：2021-11-16
申请号：US16344891
申请日：2017-11-02
申请人： JSP Corporation
发明人： Shota Takagi , Masaharu Oikawa
IPC分类号： C08J9/232 , C08J3/20 , C08J9/18 , C08J9/16 , B29B9/12 , B29B7/00 , B29B9/06 , B29C44/34 , B29K23/00 , B29K96/04 , B29K105/00 , B29K105/04 , B29K105/24 , B29B7/38 , B29C44/00
摘要： The present invention is concerned with expanded beads of a block copolymer of a polyethylene block and an ethylene/α-olefin copolymer block, wherein a xylene insoluble fraction (A) of the expanded beads by a hot xylene extraction method is 10 to 70% by weight, and a ratio (A/B) of the xylene insoluble fraction (A) to a xylene insoluble fraction (B) of the expanded beads by a hot xylene extraction method when divided into two equal parts and measured is 1.0 to 1.1, and is able to provide expanded beads with excellent in-mold moldability and an expanded beads molded article with excellent fusion bondability and restorability.
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公开(公告)号：USRE48098E1
公开(公告)日：2020-07-14
申请号：US16263547
申请日：2019-01-31
申请人： JSP CORPORATION
发明人： Takuya Chiba , Masaharu Oikawa
IPC分类号： C08J9/16 , B29B9/06 , B29C44/02 , B29C44/34 , C08J9/00 , C08J9/12 , C08J9/228 , C08J9/232 , B32B5/18 , B32B27/18 , C08J9/18 , C08J9/22 , B29K105/12 , B29K509/00
摘要： Thermoplastic resin foamed particles of the present invention including more than one or more 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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4.发明申请Polypropylene-Based Resin Expanded Beads, Method for Preparing Same, and Polypropylene-Based Resin Expanded Beads Molded Article 审中-公开聚丙烯基树脂膨胀珠，其制备方法和聚丙烯基树脂膨胀珠成型品公开(公告)号：US20150001451A1
公开(公告)日：2015-01-01
申请号：US14365406
申请日：2012-12-06
申请人： JSP CORPORATION
发明人： Takuya Chiba , Masaharu Oikawa , Mitsuru Shinohara
CPC分类号： H01B1/24 , B29B7/002 , B29C44/005 , B29K2023/0625 , B29K2023/065 , B29K2023/12 , B29K2105/0002 , B29K2105/0023 , B29K2105/046 , B29K2995/0013 , C08J9/0061 , C08J9/0066 , C08J9/122 , C08J9/16 , C08J9/18 , C08J9/232 , C08J2201/034 , C08J2203/06 , C08J2323/12 , C08J2323/14 , C08J2423/06 , C08J2423/08 , C08K3/04 , C08L23/04 , C08L23/10 , H01R13/6485 , C08L23/06 , C08L23/0807
摘要： An electrostatic dissipative, polypropylene-based resin expanded bead containing electrically conductive carbon black, having an apparent density of 10 to 120 kg/m3 and formed of a base resin which includes a polypropylene resin forming a continuous phase, and a polyethylene resin forming dispersed phases dispersed in the continuous phase, with the carbon black being unevenly distributed to the dispersed phases side. The polyethylene resin is an ethylene homopolymer or a copolymer of ethylene and C4 to C6 α-olefin and a weight ratio of the polypropylene resin to the polyethylene resin is 99.5:0.5 to 65:35. A molded article obtained by in-mold molding of such expanded beads exhibits electrostatic dissipative properties with a surface resistivity in the range of 1×105 to 1×1010Ω in a stable manner.
摘要翻译： 含有导电性炭黑的静电耗散性聚丙烯系树脂发泡珠，其表观密度为10〜120kg / m 3，由包含形成连续相的聚丙烯树脂的基础树脂形成，形成分散相的聚乙烯树脂 分散在连续相中，炭黑不均匀地分布在分散相侧。 聚乙烯树脂是乙烯均聚物或乙烯与C 4〜C 6α-烯烃的共聚物，聚丙烯树脂与聚乙烯树脂的重量比为99.5:0.5〜65:35。 通过这种发泡珠的模内成型获得的模制品表现出静电耗散性，表面电阻率在1×105〜1×1010＆OHgr的范围内。 以稳定的方式。
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公开(公告)号：US11795286B2
公开(公告)日：2023-10-24
申请号：US16349236
申请日：2017-11-13
申请人： JSP Corporation
发明人： Shota Takagi , Masaharu Oikawa
CPC分类号： C08J9/232 , C08J9/18 , C08J9/228 , C08L53/00 , A43B13/04 , C08J2201/026 , C08J2203/22 , C08J2353/00
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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公开(公告)号：US10787555B2
公开(公告)日：2020-09-29
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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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：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：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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公开(公告)号：US09637606B2
公开(公告)日：2017-05-02
申请号：US14698001
申请日：2015-04-28
申请人： JSP CORPORATION
发明人： Mitsuru Shinohara , Masaharu Oikawa
CPC分类号： C08J9/0061 , C08J9/232 , C08J2367/04
摘要： A polylactic acid-based resin foamed molded article having a voidage of 5 to 45% by volume, a bulk density BD [g/cm3] of 0.01 to 0.2 g/cm3 and a ratio FT/BD of a flexural strength FT [MPa] thereof to the bulk density BD in the range of 6 to 25 MPa·cm3/g.
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