公开(公告)号：US20040082740A1

公开(公告)日：2004-04-29

申请号：US10687126

申请日：2003-10-16

Applicant: Fina Technology, Inc.

Inventor： Steven D. Gray ,  Tim J. Coffy

IPC: C08F004/44

CPC classification number: C08F10/00 ,  C08F4/6567 ,  C08F4/6557

Abstract: A new synthesis of a Ziegler-Natta catalyst uses a multi-step preparation that includes treating a magnesium dialkoxide compound with halogenating/titanating agents, an organoaluminum preactivating agent, and a heat treatment. The catalyst may be used in the polymerization of olefins, particularly ethylene, to control the molecular weight distribution of the resulting polyolefins.

Abstract translation: 齐格勒 - 纳塔催化剂的新合成使用多步骤制备方法，包括用卤化/钛化剂处理二烷氧基镁化合物，有机铝预活化剂和热处理。 该催化剂可用于烯烃，特别是乙烯的聚合中，以控制得到的聚烯烃的分子量分布。