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    HIPE FOAM AND METHOD FOR PRODUCING SAME
    4.
    发明申请
    HIPE FOAM AND METHOD FOR PRODUCING SAME 有权

    公开(公告)号：US20230075291A1

    公开(公告)日：2023-03-09

    申请号：US17760410

    申请日：2021-02-17

    申请人： JSP CORPORATION

    发明人： Yohei KANEKO ,  Kenji HARAGUCHI

    IPC分类号： C08F220/18 ,  C08F212/08 ,  C08F2/32 ,  C08F218/04 ,  C08J9/22

    摘要： A HIPE foam may including a vinyl-based crosslinked polymer as a base material resin. The vinyl-based crosslinked polymer may be formed by crosslinking a polymer of a styrene-based monomer and/or an acryl-based monomer. An apparent density ρ of the HIPE foam may be 35 kg/m3 or more and 500 kg/m3 or less. A molecular weight between crosslinking points of the vinyl-based crosslinked polymer forming the HIPE foam may be 2×103 or more and 2×105 or less. The HIPE foam may be used as, for example, a machinable material or an impact absorbing material.

    Poly(3-hydroxyalkanoate) foam particles and poly(3-hydroxyalkanoate) foam molded article
    5.
    发明授权
    Poly(3-hydroxyalkanoate) foam particles and poly(3-hydroxyalkanoate) foam molded article 有权

    公开(公告)号：US11459436B2

    公开(公告)日：2022-10-04

    申请号：US16937654

    申请日：2020-07-24

    申请人： KANEKA CORPORATION

    发明人： Tetsuya Minami

    IPC分类号： C08J9/20 ,  C08J9/22 ,  C08J9/06

    摘要： Provided are poly(3-hydroxyalkanoate) foam particles, which can give a foam molded article having good surface aspects and a low shrinkage ratio of a molding, and the foam molded article. The poly(3-hydroxyalkanoate) foam particles have at least two melting peaks on a DSC curve obtained by differential scanning calorimetry and in which a melting calorie (X) on a high temperature side is 0.1 to 20 J/g, a gel fraction (Y) is 20 to 75% by weight, and the melting calorie (X) and the gel fraction (Y) satisfy Formula: X+Y≥30.

    Thermoplastic resin foamed particles
    6.
    再颁专利
    Thermoplastic resin foamed particles 有权

    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.