The preparation of polypropylene alloy by 2-stage heterophase catalytic copolymerization of ethylene, propylene and 1-butene on spheric Ziegler-Natta catalyst had been studied.
采用球形Z-N催化剂，使用乙烯、丙烯和1-丁烯作为共聚单体，分步聚合催化合成了三元多相共聚聚丙烯。
The random copolymerization of propylene and ethylene with a supported titanium contained Ziegler-Natta catalyst has been studied.
以载体型钛系齐格勒-纳塔催化剂进行了丙烯和乙烯无规共聚合的研究。
The polymerization kinetics of styrene catalyzed by Ziegler-Natta catalyst and the effects of prepolymerization conditions on morphology of prepolymer particles were systemically studied.
通过淤浆预聚对齐格勒·纳塔催化剂催化的苯乙烯预聚动力学规律和预聚条件对预聚物粒子形态的影响进行了系统的研究。
Homogeneous design of experimentation was applied to gaseous copolymerization of ethylene-propylene over spherical Ziegler-Natta catalyst to prepare ethylene-propylene impact copolymer.
运用均匀设计法对乙烯-丙烯气相共聚进行实验设计，将反应条件与聚丙烯乙丙抗冲共聚物（简称共聚物）的组成进行关联。
Also provided is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein.
还提供了一种使聚烯烃分子量分布变窄的方法，包括使烯烃、辛格勒·纳塔型催化剂和本文指定化合物相接触。
Also provided is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein.
还提供了一种使聚烯烃分子量分布变窄的方法，包括使烯烃、辛格勒·纳塔型催化剂和本文指定化合物相接触。
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