Abstract

The studies devoted to the synthesis of ternary copolymers of ethylene, propylene, and nonconjugated cyclic dienes on single-site catalytic systems of a new generation based on metallocene complexes, “constrained geometry” complexes, and monocyclopentadienyl and post-metallocene chelate IVB-group complexes have been analyzed. The advantages and disadvantages of these catalytic systems have been compared with traditional vanadium catalysts introduced into production in the 1960s and used to date in the industrial synthesis of rubbers. A significant part of the review is devoted to the analysis of patent publications, especially in recent years, belonging to the main world producers of ethylene–propylene–diene rubbers.

中文翻译：

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新一代单站点催化体系上离子配位聚合合成乙烯-丙烯-二烯弹性体的研究进展

摘要

这项研究致力于在茂金属络合物，“受约束的几何形状”络合物，单环戊二烯基和茂金属螯合物IVB-基络合物的新一代单点催化体系上合成乙烯，丙烯和非共轭环状二烯的三元共聚物已经分析过了。这些催化体系的优缺点已与1960年代投入生产并迄今用于橡胶工业合成的传统钒催化剂进行了比较。审查的很大一部分内容是对专利出版物的分析，尤其是近年来，这些出版物属于世界主要的乙烯-丙烯-二烯橡胶生产商。