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    Expanded polypropylene resin bead and process of producing same
    4.
    发明授权
    Expanded polypropylene resin bead and process of producing same 失效
    膨胀聚丙烯树脂珠及其生产方法

    公开(公告)号：US06956067B2

    公开(公告)日：2005-10-18

    申请号：US10379569

    申请日：2003-03-06

    申请人： Hidehiro Sasaki ,  Akinobu Hira ,  Keiichi Hashimoto ,  Hisao Tokoro

    发明人： Hidehiro Sasaki ,  Akinobu Hira ,  Keiichi Hashimoto ,  Hisao Tokoro

    IPC分类号： C08J9/224 ,  C08L23/10 ,  C08J9/16

    CPC分类号： C08J9/224 ,  C08J2323/10 ,  C08L23/10 ,  C08L2203/14 ,  Y10T428/25 ,  Y10T428/2991

    摘要： Expanded, substantially non-crosslinked polypropylene resin beads capable of producing a high rigidity foamed molding at a relatively low temperature. The beads are produced by a process including a step of dispersing substantially non-crosslinked polypropylene resin particles in a dispersing medium containing an organic peroxide to obtain a dispersion, a step of heating the dispersion to decompose the organic peroxide and to modify the surface of the surface-modified polypropylene resin particles, and a step of expanding the non-crosslinked, surface-modified polypropylene resin particles using a blowing agent.

    摘要翻译： 膨胀的基本上非交联的聚丙烯树脂珠，其能够在相对低的温度下生产高刚性的发泡成型体。 珠粒通过包括将基本上未交联的聚丙烯树脂颗粒分散在含有机过氧化物的分散介质以获得分散体的步骤的方法制备，加热分散体以分解有机过氧化物并改性表面的步骤 表面改性聚丙烯树脂颗粒，以及使用发泡剂使未交联的表面改性聚丙烯树脂颗粒膨胀的步骤。

    Molded article of foamed and expanded beads of propylene resin
    7.
    发明授权
    Molded article of foamed and expanded beads of propylene resin 有权
    丙烯树脂发泡和发泡珠的成型制品

    公开(公告)号：US6034144A

    公开(公告)日：2000-03-07

    申请号：US329363

    申请日：1999-06-10

    申请人： Satoru Shioya ,  Akinobu Hira ,  Hidehiro Sasaki ,  Hisao Tokoro

    发明人： Satoru Shioya ,  Akinobu Hira ,  Hidehiro Sasaki ,  Hisao Tokoro

    IPC分类号： B29C44/44 ,  C08J9/00 ,  C08J9/228 ,  C08J9/24 ,  C08J9/232

    CPC分类号： C08J9/0038 ,  B29C44/445 ,  C08J9/228 ,  C08J2323/10 ,  Y10S264/15 ,  Y10S264/16

    摘要： Disclosed herein is an molded article of foamed and expanded beads of a propylene resin, which is obtained by heating and molding the foamed beads of the propylene resin, wherein the apparent density of the molded article is 0.11 to 0.45 g/cm.sup.3, a value obtained by dividing its maximum bending strength (kgf/cm.sup.2) determined in accordance with JIS K 7221 by the apparent density (g/cm.sup.3) is at least 160 (kgf/cm.sup.2)/(g/cm.sup.3), and the average number of cells at its section is within a range of 5 to 100 cells/mm.sup.2.

    摘要翻译： 本发明公开了一种通过加热和模塑丙烯树脂的发泡粒子得到的丙烯树脂的发泡和发泡珠粒的模制品，其中模塑制品的表观密度为0.11至0.45g / cm3，获得的值 通过将其根据JIS K 7221测定的最大弯曲强度（kgf / cm 2）除以表观密度（g / cm 3）为至少160（kgf / cm 2）/（g / cm 3）），并且平均细胞数 其截面在5〜100个/ mm 2的范围内。

    Foamed and expanded beads of polyester-based resin and foam molding obtained therefrom
    8.
    发明授权
    Foamed and expanded beads of polyester-based resin and foam molding obtained therefrom 失效
    由聚酯类树脂发泡和发泡的珠粒和由其获得的泡沫模塑

    公开(公告)号：US06686400B2

    公开(公告)日：2004-02-03

    申请号：US10190549

    申请日：2002-07-09

    申请人： Tomoo Tokiwa ,  Mitsuru Shinohara ,  Hidehiro Sasaki

    发明人： Tomoo Tokiwa ,  Mitsuru Shinohara ,  Hidehiro Sasaki

    IPC分类号： C08J922

    CPC分类号： C08J9/18 ,  C08J9/0066 ,  C08J2367/02

    摘要： Foamed and expanded beads including a polyester-based resin containing at least 35 mole % of an aliphatic ester component. The foamed beads have a gel fraction of at least 5 % by weight and comprises at least one gel accelerating agent selected from fatty acids having 12-25 carbon atoms, metal salts of the fatty acids, esters of the fatty acids and amides of the fatty acids in an amount of 0.15-3 % by weight. A foam molding is obtained by heating the foamed and expanded beads in a mold.

    摘要翻译： 包含含有至少35摩尔％的脂肪族酯组分的聚酯类树脂的发泡珠粒和发泡珠粒。 发泡珠粒具有至少5重量％的凝胶分数，并且包含至少一种选自具有12-25个碳原子的脂肪酸的凝胶促进剂，脂肪酸的金属盐，脂肪酸的酯和脂肪酸的酰胺 0.15-3％重量的酸。 通过在模具中加热发泡和膨胀的珠粒来获得泡沫成型。

    Composite foamed polypropylene resin molding and method of producing same
    9.
    发明授权
    Composite foamed polypropylene resin molding and method of producing same 有权
    复合发泡聚丙烯树脂成型及其制造方法

    公开(公告)号：US07182896B2

    公开(公告)日：2007-02-27

    申请号：US10502934

    申请日：2003-03-19

    申请人： Akinobu Hira ,  Keiichi Hashimoto ,  Hidehiro Sasaki

    发明人： Akinobu Hira ,  Keiichi Hashimoto ,  Hidehiro Sasaki

    IPC分类号： B29C44/04

    CPC分类号： B29C44/0469 ,  B29C44/3461 ,  B29C44/445 ,  Y10T428/24992 ,  Y10T428/249953 ,  Y10T428/249971 ,  Y10T428/249977 ,  Y10T428/249981

    摘要： A composite foamed polypropylene resin molding including a plurality of sections which are fuse-bonded to each other, at least two of which differ from each other in color, apparent density, composition and/or mechanical strengths, each of which is formed from expanded polypropylene resin beads, and each of which shows a high temperature endothermic peak in a DSC curve thereof. At least one of the sections satisfies conditions (d) to (f) at the same time: (d) to be formed from specific expanded polypropylene resin beads of a base resin having a tensile modulus of at least 1,200 MPa, (e) to have an apparent density D2 of 10–500 g/L, and (f) to have such a high temperature endothermic peak with a calorific of E2 J/g, wherein D2 and E2 have the relationship 20−0.020×D2≦E2≦65−0.100×D2. The composite molding may be prepared by filling expanded polypropylene resin beads in each of a plurality of contiguous spaces defined in a mold cavity and heating the expanded beads to fuse-bond respective expanded beads together into a unitary body. At least one of the spaces is filled with the specific expanded polypropylene resin beads.

    摘要翻译： 一种复合发泡聚丙烯树脂模制品，其包括彼此熔合键合的多个部分，其中至少两个在颜色，表观密度，组成和/或机械强度方面彼此不同，每个部分由发泡聚丙烯 树脂珠，其DSC曲线中都显示高温吸热峰。 至少一个部分同时满足条件（d）至（f）：（d）由具有至少1200MPa的拉伸模量的基础树脂的特定发泡聚丙烯树脂珠粒形成，（e）至 具有10-500g / L的表观密度D 2，和（f）具有发热量为E 2 J / g的高温吸热峰，其中D 2和E 2具有20-0.020xD 2的关系 <= E 2 <= 65-0.100xD 2.复合成型可以通过在模腔中限定的多个连续空间中的每一个中填充发泡聚丙烯树脂珠并加热发泡珠以将相应的发泡珠熔合在一起来制备 进入一个单一的身体。 至少一个空间用特定的发泡聚丙烯树脂珠填充。

    Expanded polypropylene resin beads and process for the production thereof
    10.
    发明授权
    Expanded polypropylene resin beads and process for the production thereof 失效
    膨胀聚丙烯树脂珠及其制备方法

    公开(公告)号：US07259189B2

    公开(公告)日：2007-08-21

    申请号：US10855633

    申请日：2004-05-28

    申请人： Keiichi Hashimoto ,  Akinobu Hira ,  Hidehiro Sasaki

    发明人： Keiichi Hashimoto ,  Akinobu Hira ,  Hidehiro Sasaki

    IPC分类号： C08J9/16 ,  C08J9/22

    CPC分类号： C08J9/0061 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/18 ,  C08J2201/024 ,  C08J2203/06 ,  C08J2323/12 ,  C08J2400/22 ,  C08J2423/00

    摘要： A process for the production of expanded beads, including kneading a base resin containing a polypropylene resin and having a tensile modulus of at least 1,200 MPa together with a mixture of a coloring agent and a thermoplastic polymer having a tensile modulus lower than that of the base resin to form a kneaded mixture including a matrix of the base resin and a multiplicity of domains dispersed in the matrix and each containing the thermoplastic polymer and the coloring agent. The kneaded mixture is formed into resin particles, then treated with an organic peroxide to modify surfaces of the resin particles therewith. Foaming and expanding of the surface-modified resin particles gives expanded beads having an inside region surrounded by a surface region. The heat of fusion of a high temperature peak of the surface region is lower than that of the inside region.

    摘要翻译： 一种生产发泡珠粒的方法，包括捏合含有聚丙烯树脂的基础树脂和拉伸模量至少为1200MPa的着色剂和热塑性聚合物的混合物，其拉伸模量低于基体的拉伸模量 树脂以形成包含基体树脂的基体和分散在基体中的多个畴并且各自包含热塑性聚合物和着色剂的捏合混合物。 捏合的混合物形成树脂颗粒，然后用有机过氧化物处理以改性树脂颗粒的表面。 表面改性树脂颗粒的发泡和膨胀产生具有由表面区域包围的内部区域的发泡珠粒。 表面区域的高温峰的熔化热低于内部区域的熔融热。