Production of blend of polyolefin and organopolysiloxane
    425.
    发明授权
    Production of blend of polyolefin and organopolysiloxane 有权
    生产聚烯烃和有机聚硅氧烷的共混物

    公开(公告)号:US09527988B2

    公开(公告)日:2016-12-27

    申请号:US14429004

    申请日:2013-09-19

    Abstract: A process for the production of a polymer composition is disclosed. The polymer composition comprises an organopolysiloxane dispersed in a thermoplastic organic polymer liable to thermo-radical degradation or cross-linking when subjected to a high compounding energy at a temperature above its melting point. In a first step (I), a thermoplastic organic polymer and an organopolysiloxane are mixed at a temperature at which both the thermoplastic organic polymer and the organopolysiloxane are in liquid phases to form a masterbatch. In a second step (II), the masterbatch is mixed with further thermoplastic organic polymer to form a polymer composition having a lower concentration of organopolysiloxane than that in the masterbatch. In the first step (I), the thermoplastic organic polymer and the organopolysiloxane are mixed in the presence of an additive capable of inhibiting the thermo-radical degradation or cross-linking of the thermoplastic organic polymer. The organopolysiloxane of the masterbatch remains stable during processing.

    Abstract translation: 公开了制备聚合物组合物的方法。 当在高于其熔点的温度下经受高配合能量时,聚合物组合物包含分散在易于热自由基降解或交联的热塑性有机聚合物中的有机聚硅氧烷。 在第一步骤(I)中,将热塑性有机聚合物和有机聚硅氧烷在热塑性有机聚合物和有机聚硅氧烷都处于液相中的温度下混合以形成母料。 在第二步(II)中,母料与另外的热塑性有机聚合物混合以形成具有比母料中低的有机聚硅氧烷浓度较低的聚合物组合物。 在第一步骤(I)中,将热塑性有机聚合物和有机聚硅氧烷在能够抑制热可降解或热塑性有机聚合物交联的添加剂的存在下混合。 母料的有机聚硅氧烷在加工过程中保持稳定。

    Method for addition of additives into a polymer melt
    430.
    发明授权
    Method for addition of additives into a polymer melt 有权
    将添加剂加入到聚合物熔体中的方法

    公开(公告)号:US09267007B2

    公开(公告)日:2016-02-23

    申请号:US11500862

    申请日:2006-08-08

    CPC classification number: C08J3/201 C08J3/2056

    Abstract: A method for adding an additive into a polymer melt, preferably a polyester polymer melt such as polyethylene terephthalate (PET), comprising: a. discharging a polymer melt from a reactor to form a discharged polymer melt stream, and b. solidifying said discharged polymer melt stream, and c. prior to solidification, feeding a portion of the discharged polymer melt stream to a slipstream to form a slipstream polymer melt, and d. feeding an additive into said slipstream polymer melt to form an additive containing slipstream, and e. feeding the additive containing slipstream to a location upstream from the feed location forming said slipstream.

    Abstract translation: 将添加剂添加到聚合物熔体,优选聚酯聚合物熔体如聚对苯二甲酸乙二酯(PET)中的方法,其包括:a。 从反应器排出聚合物熔体以形成排出的聚合物熔体流,b。 固化所述排出的聚合物熔体流,和c。 在固化之前,将一部分排出的聚合物熔体流供给到滑流以形成滑流聚合物熔体,以及d。 将添加剂进料到所述滑流聚合物熔体中以形成含有滑流的添加剂, 将含有滑流的添加剂供给到形成所述滑流的进料位置上游的位置。

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