Novel catalyst systems which comprise at least two diimine nickel complexes can be used with a co-catalyst such as methylaluminoxane in polymerization processes to produce polymers having multimodal molecular weight distributions. Also disclosed are the novel polymers obtained by the use of such catalyst...http://www.google.fr/patents/US6479422?utm_source=gb-gplus-shareBrevet US6479422 - Polymer having a multimodal molecular weight distribution made from two different dimine catalysts
Polymer having a multimodal molecular weight distribution made from two ...