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Process for preparing a Ziegler type catalytic system and process for preparing ultra high molecular weight polyethylene
Process for preparing a Ziegler type catalytic system and process for preparing ultra high molecular weight polyethylene
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机译:齐格勒型催化体系的制备方法和超高分子量聚乙烯的制备方法
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摘要
Description of the preparation of a Ziegler type catalyst system through impregnation of a special alumina with 0.8-1.0% by weight of titanium derived from a dilute solution of titanium halide in n-hexane, the activator employed being triisobutylaluminum or triethylaluminum at an (Al)/(Ti) molar ratio of 2.5/1 to 80/1 in the catalyst. The catalyst system has high efficiency and yield, and leads to polyethylenes of excellent physical and mechanical properties which make it particularly suitable for use in engineering plastics.
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