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    PROCESSES TO IMPROVE REACTOR STABILITY FOR THE PREPARATION OF ETHYLENE-BASED POLYMERS USING ASYMMETRICAL POLYENES
    3.
    发明公开
    PROCESSES TO IMPROVE REACTOR STABILITY FOR THE PREPARATION OF ETHYLENE-BASED POLYMERS USING ASYMMETRICAL POLYENES 审中-公开
    一种用于改善稳定性REACTOR FOR聚合物的生产力上具有不对称的多烯乙烯

    公开(公告)号：EP3087112A1

    公开(公告)日：2016-11-02

    申请号：EP14827682.7

    申请日：2014-12-23

    申请人： Dow Global Technologies LLC

    发明人： EDDY, Christopher R. ,  OSBY, John O. ,  EWART, Sean W. ,  MUNJAL, Sarat ,  HINRICHS, Stefan ,  BERBEE, Otto J.

    IPC分类号： C08F210/02 ,  C08F2/01 ,  C08F10/02 ,  C08L23/08

    CPC分类号： C08F210/02 ,  C08F2220/282 ,  C08F2220/281 ,  C08F2/38

    摘要： The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene and at least one asymmetrical polyene, comprising an “alpha, beta unsaturated—carbonyl end” and a “C—C double bond end,” and wherein the polymerization takes place in the presence of at least one free-radical initiator, and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone I and reaction zone i (i>2), wherein reaction zone I is downstream from reaction zone I; and wherein at least one chain transfer agent (CTA) is added to the polymerization, and wherein the CTA is a saturated hydrocarbon or an unsaturated hydrocarbon.

    摘要翻译： 本发明提供一种工艺，以形成基于乙烯的聚合物的，所述方法包括聚合乙烯和至少一种非对称多烯中，“α，β-不饱和羰基端”和一个包括“C-C双键端，”与worin的 聚合在至少一种自由基引发剂的存在地点，和worin聚合发生在反应器配置包括至少两个反应区，反应区1和反应区I（In≥2），worin反应区i是 从反应区1的下游; 和worin至少一种链转移剂（CTA）加入到聚合反应，并在worin CTA是饱和烃或烃不饱和的。

    LUBRICANT TREATMENTS FOR FREE-RADICAL POLYMERIZATIONS
    4.
    发明公开
    LUBRICANT TREATMENTS FOR FREE-RADICAL POLYMERIZATIONS 审中-实审

    公开(公告)号：EP4345114A2

    公开(公告)日：2024-04-03

    申请号：EP24158398.8

    申请日：2017-09-19

    申请人： Dow Global Technologies Llc

    发明人： EWART, Sean W. ,  MUNJAL, Sarat ,  SUN, Kefu

    IPC分类号： C08F110/02

    摘要： A process to reduce the peroxide content in an oil formulation, optionally comprising one or more lubrication agents; said process comprising at least one of the following steps:
    A) thermally treating the one or more lubrication agents, in an oxygen-free atmosphere, to achieve a peroxide level ≤ 10 ppm, based on the weight of the lubrication agent(s), and then adding said agent(s) to the oil formulation; or
    B) thermally treating the oil formulation, in an oxygen-free atmosphere, to achieve a peroxide level ≤ 10 ppm, based on the weight of the oil formulation;
    C) a combination of A and B.