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    • 2. 发明公开
    • LOW DENSITY ETHYLENE-BASED POLYMER COMPOSITIONS WITH GOOD MELT STRENGTH AND HIGH DENSITY
    • 聚合物组合物基于与良好的熔体强度和高密度的低密度乙烯
    • EP2992050A2
    • 2016-03-09
    • EP14729535.6
    • 2014-04-30
    • Dow Global Technologies LLC
    • ZUERCHER, KarlDEN DOELDER, Cornelis F. J.MANGNUS, Marc A.
    • C08L23/06
    • C09D123/06C08L23/06C08L2203/16C08L2205/025D01F6/04
    • The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process comprising at least one autoclave reactor, and a second ethylene-based polymer, formed by a high pressure, free-radical polymerization process comprising at least one autoclave reactor, such composition comprising the following properties: A) a melt index (I2) from 2.5 to 10 g/10 min; B) a density from 0.920 to 0.935 g/cc; and wherein the second polymer is present in an amount from 5 to 95 weight percent, based on the sum of the weight of the first polymer and the second polymer; and wherein the density of the of the second polymer is greater than the density of the first polymer, and wherein the first polymer has a melt index I2 greater than 2.5 g/10 min.
    • 本发明提供一种组合物,其包括第一基于乙烯的聚合物,通过高压,自由基聚合方法,包括至少一个高压釜反应器,和第二基于乙烯的聚合物,通过高压,自由基聚合方法形成FORMED 包括至少一个高压釜反应器,求组合物包括以下属性:从2.5 A)的熔体指数(I 2)以10克/ 10分钟; B)从0.920至0.935g / cc的密度; 和worin所述第二聚合物的存在量在5至95重量%,基于所述第一聚合物和第二聚合物的重量的总和; 和worin的第二聚合物的密度比第一种聚合物的密度大,和worin所述第一聚合物具有的熔体指数I 2大于2.5克/ 10分钟。