摘要 |
The invention relates to the production of homopolymers, co-copolymers or block copolymers from cycloolefinic monomer units characterized in that polymerization occurs in the presence of a catalyst of general formula (I), and optionally in the presence of an additive, wherein the substituents and indices have the following meaning: M is a metal from group VIII B of the periodic table of elements; E1, E2 are independently from each other an element from group V A of the periodic table of elements; Z is a bridging structural unit; Ar stands for annelated aryl units independent of each other; L1, L2 stands for formally uncharged Lewis base ligands; X means monovalent or bivalent anions; k means 1 or 2; l, m, n represent 1 or 2, whereby m x n = 1.
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申请人 |
BASF AG, 67063 LUDWIGSHAFEN, DE |
发明人 |
GEPRAEGS, MICHAEL, DR., 67240 BOBENHEIM-ROXHEIM, DE;QUEISSER, JOACHIM, DR., 68165 MANNHEIM, DE;RIEGER, BERNHARD, DR., 89075 ULM, DE;ABU-SURRAH, ADNAN S., 89075 ULM, DE |