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    • 2. 发明申请
    • LUBRICANT TREATMENTS FOR FREE-RADICAL POLYMERIZATIONS
    • 用于自由基聚合的润滑剂处理
    • WO2018063853A1
    • 2018-04-05
    • PCT/US2017/052170
    • 2017-09-19
    • DOW GLOBAL TECHNOLOGIES LLC
    • EWART, Sean W.MUNJAL, SaratSUN, Kefu
    • C10M175/00C08F110/02C08F210/02C08F2/00C08F2/01C08F10/02
    • A process to prepare an ethylene-based polymer, said process comprising polymerizing a mixture comprising ethylene, at a pressure greater than, or equal to, 100 MPa, in the presence of at least one free-radical initiator; and in a reactor system comprising at least one reactor and at least one Hyper-compressor, and wherein at least one oil formulation, optionally comprising one or more lubrication agents, is added to the Hyper-compressor; and wherein at least one of the following steps takes place: 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, prior to adding the oil formulation to the Hyper-compressor; 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, prior to adding the oil formulation to the Hyper-compressor; C) a combination of A and B.
    • 一种制备基于乙烯的聚合物的方法,所述方法包括在大于或等于100MPa的压力下在至少一种自由基存在下聚合包含乙烯的混合物 引发剂; 并且在包括至少一个反应器和至少一个超级压缩机的反应器系统中,并且其中将至少一种油制剂(任选地包含一种或多种润滑剂)加入到超级压缩机中; 并且其中发生以下步骤中的至少一个:A)基于润滑剂(一种或多种)的重量,在无氧气氛中热处理一种或多种润滑剂以实现≤10ppm的过氧化物水平, ,然后在将所述油制剂加入所述超级压缩机之前,将所述一种或多种试剂加入到所述油制剂中; 或B)在将所述油制剂加入所述超级压缩机之前,在无氧气氛中热处理所述油制剂以达到基于所述油制剂的重量≤10ppm的过氧化物水平; C)A和B的组合。