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Polyolefin polymerization process, semi-crystalline ethylene-based polymer made therefrom, and articles made from the polymer
Polyolefin polymerization process, semi-crystalline ethylene-based polymer made therefrom, and articles made from the polymer
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机译:聚烯烃聚合方法,由其制得的半结晶的基于乙烯的聚合物以及由该聚合物制得的制品
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摘要
A polymerization process comprising (A) polymerizing ethylene in the presence of a catalyst to form a semi-crystalline ethylene-based polymer in at least one reactor; the catalyst comprising an organometallic catalyst thereby forming an ethylene-based polymer composition in the at least one reactor, wherein the catalyst is a metal complex of a polyvalent aryloxyether corresponding to the formula:; ;wherein step (A) is conducted in the presence of from 5 to 20 mmol/m3 triethylaluminum; and wherein step (A) is conducted in the presence of one or both of the following conditions: (i) from greater than 0:1 to 65:1 molar ratio of triethylaluminum to the catalyst; and (ii) from 0.1:0 to 5:1 molar ratio of triethylaluminum to modified methylalumoxane is provided.
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机译:一种聚合方法,包括:(A)在至少一个反应器中在催化剂的存在下使乙烯聚合以形成半结晶的基于乙烯的聚合物;所述催化剂包含有机金属催化剂,从而在所述至少一个反应器中形成基于乙烯的聚合物组合物,其中所述催化剂是对应于下式的多价芳氧基醚的金属配合物: 化学> ;其中步骤(A)在5至20mmol / m 3 Sup>三乙基铝的存在下进行;其中步骤(A)在以下一种或两种条件下进行:(i)三乙基铝与催化剂的摩尔比大于0∶1至65∶1。 (ii)提供三乙基铝与改性的甲基铝氧烷的摩尔比为0.1:0至5:1。
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