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    EXPANDABLE THERMOPLASTIC RESIN PARTICLES, THERMOPLASTIC PRE-EXPANDED PARTICLES, AND THERMOPLASTIC EXPANSION-MOLDED ARTICLE
    1.
    发明公开
    EXPANDABLE THERMOPLASTIC RESIN PARTICLES, THERMOPLASTIC PRE-EXPANDED PARTICLES, AND THERMOPLASTIC EXPANSION-MOLDED ARTICLE 审中-公开

    公开(公告)号：EP3202836A4

    公开(公告)日：2018-05-09

    申请号：EP15848048

    申请日：2015-09-16

    申请人： KANEKA CORP

    发明人： IIDA ATSUSHI ,  SUZUKI KIRITO ,  HENMI TATSUYA

    IPC分类号： C08J9/16 ,  C08J9/18 ,  C08J9/224 ,  C08J9/228 ,  C08J9/232

    CPC分类号： C08L25/04 ,  B32B27/22 ,  C01P2004/61 ,  C08J9/141 ,  C08J9/18 ,  C08J9/224 ,  C08J9/232 ,  C08J2203/14 ,  C08J2325/12 ,  C08L9/02 ,  C09D17/003

    摘要： An in-mold expanded mold article can be produced inexpensively and easily by using the expandable polystyrene-type resin particles. However, expanded mold articles are not sufficient in dimensional stability under a high-temperature environment for a long period of time upon use of relatively-high-temperature applications such as a thermal insulating material for pipes, a heat-insulating material for roofs, an automotive member, a thermal insulating material for solar systems or the like because the monomer that forms the polymer in the expanded mold article is styrene. The expansion-molded polystyrene article has thus a drawback that it is not suitable for those applications which require heat resistance as a disadvantage. Further, even higher heat-resistant performance is required in these application fields in recent years. The object of the present invention is to provide an expandable thermoplastic resin particle having improved heat resistance. The problem is solved by an expandable thermoplastic resin particle comprising a polymer obtained from a monomer composition comprising 60 to 80 parts by weight of ±-methylstyrene and 40 to 20 parts by weight of acrylonitrile, wherein a content of residual monomeric components in the particle is not more than 0.5% by weight.

    TETRAFLUOROPROPENE BASED BLOWING AGENT COMPOSITIONS
    8.
    发明公开
    TETRAFLUOROPROPENE BASED BLOWING AGENT COMPOSITIONS 审中-公开
    四氟丙烯基吹风剂组合物

    公开(公告)号：EP2391691A1

    公开(公告)日：2011-12-07

    申请号：EP10736369.9

    申请日：2010-01-28

    申请人： Arkema, Inc.

    发明人： VAN HORN, Brett, L.

    IPC分类号： C09K5/00

    CPC分类号： C08J9/149 ,  C08J9/127 ,  C08J2203/06 ,  C08J2203/10 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2203/162 ,  C08J2203/182 ,  C08J2323/06 ,  C08J2323/12 ,  C08J2325/06 ,  C08J2325/12

    摘要： The present invention relates to blowing agent compositions comprising tetrafluoropropene (HFO) and at least one co-blowing agent selected from carbon dioxide, water, alkanes and an alcohol used in the preparation of foamable thermoplastic compositions having low density. The HFOs include, but are not limited too, cis- and/or trans-1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO 1234yf), or mixtures thereof. The blowing agent compositions are useful in the production of low density insulating foams with improved R value.

    摘要翻译： 本发明涉及包含四氟丙烯（HFO）和至少一种选自二氧化碳，水，烷烃和用于制备低密度可发泡热塑性组合物的醇的共发泡剂的发泡剂组合物。 HFO包括但不限于顺 - 和/或反-1,3,3,3-四氟丙烯（HFO-1234ze），2,3,3,3-四氟丙烯（HFO 1234yf）或其混合物。 该发泡剂组合物可用于生产具有改进的R值的低密度绝缘泡沫。