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    Process for the preparation of expandable polystyrene
    1.
    发明授权
    Process for the preparation of expandable polystyrene 有权
    制备可发性聚苯乙烯的方法

    公开(公告)号：US09120905B2

    公开(公告)日：2015-09-01

    申请号：US14413452

    申请日：2013-06-25

    Applicant: Ineos Europe AG

    Inventor： Jean-Marc Galewski

    IPC: C08J9/20 ,  C08J3/22 ,  C08J9/04 ,  C08J9/12 ,  C08J9/14 ,  C08J9/00

    CPC classification number: C08J9/141 ,  C08J3/22 ,  C08J9/0066 ,  C08J9/008 ,  C08J9/20 ,  C08J2201/024 ,  C08J2203/14 ,  C08J2325/06

    Abstract: A process for the preparation of expandable polystyrene (EPS) containing particles of carbon black and/or graphite is disclosed, comprising: (a) forming a masterbatch by adding carbon black and/or graphite to styrene polymer, (b) adding said masterbatch to an organic phase comprising styrene and optional comonomers, and heating the organic phase to a temperature between 30 and 90° C., (c) mixing the organic phase with an aqueous phase comprising water and suspending agents preheated to a temperature between 80 and 120° C. which is higher than the temperature of the organic phase, and (d) polymerizing in a suspension polymerization reaction the styrene and optional comonomers contained in the mixed aqueous and organic phases, with an expanding agent being added before, during or after the polymerization, wherein the styrene polymer in the masterbatch contains at least 1 000 ppm of dimers. The process gives an improved product.

    Abstract translation: 公开了一种制备含有炭黑和/或石墨颗粒的可发性聚苯乙烯（EPS）的方法，包括：（a）通过向苯乙烯聚合物中加入炭黑和/或石墨形成母料，（b）将所述母料加入到 包含苯乙烯和任选的共聚单体的有机相，并将有机相加热至30-90℃的温度，（c）将有机相与包含水的预混合有机相和预热至80℃和120℃之间的混合物混合 （d）在悬浮聚合反应中聚合苯乙烯和混合水相和有机相中任选的共聚单体，在聚合之前，期间或之后加入发泡剂 ，其中母料中的苯乙烯聚合物含有至少1000ppm的二聚体。 该过程提供了改进的产品。

    PROCESS FOR THE PREPARATION OF EXPANDABLE POLYSTYRENE
    5.
    发明申请
    PROCESS FOR THE PREPARATION OF EXPANDABLE POLYSTYRENE 有权
    制备可膨胀聚苯乙烯的方法

    公开(公告)号：US20150175765A1

    公开(公告)日：2015-06-25

    申请号：US14413452

    申请日：2013-06-25

    Applicant: Ineos Europe AG

    Inventor： Jean-Marc Galewski

    IPC: C08J9/14 ,  C08J9/00 ,  C08J3/22

    CPC classification number: C08J9/141 ,  C08J3/22 ,  C08J9/0066 ,  C08J9/008 ,  C08J9/20 ,  C08J2201/024 ,  C08J2203/14 ,  C08J2325/06

    Abstract: A process for the preparation of expandable polystyrene (EPS) containing particles of carbon black and/or graphite is disclosed, comprising: (a) forming a masterbatch by adding carbon black and/or graphite to styrene polymer, (b) adding said masterbatch to an organic phase comprising styrene and optional comonomers, and heating the organic phase to a temperature between 30 and 90° C., (c) mixing the organic phase with an aqueous phase comprising water and suspending agents preheated to a temperature between 80 and 120° C. which is higher than the temperature of the organic phase, and (d) polymerising in a suspension polymerisation reaction the styrene and optional comonomers contained in the mixed aqueous and organic phases, with an expanding agent being added before, during or after the polymerisation, wherein the styrene polymer in the masterbatch contains at least 1 000 ppm of dimers. The process gives an improved product.

    Abstract translation: 公开了一种制备含有炭黑和/或石墨颗粒的可发性聚苯乙烯（EPS）的方法，包括：（a）通过向苯乙烯聚合物中加入炭黑和/或石墨形成母料，（b）将所述母料加入到 包含苯乙烯和任选的共聚单体的有机相，并将有机相加热至30-90℃的温度，（c）将有机相与包含水的预混合有机相和预热至80℃和120℃之间的混合物混合 其高于有机相的温度，和（d）在悬浮聚合反应中聚合苯乙烯和混合水相和有机相中包含的任选的共聚单体，在聚合之前，期间或之后加入发泡剂 ，其中母料中的苯乙烯聚合物含有至少1000ppm的二聚体。 该过程提供了改进的产品。

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