Sulfur-containing and sulfur-nitrogen-containing catalysts for polymerization of olefins and polar monomers
The inventions disclosed herein are catalyst systems comprising a complex having one of the formulas LMX1X2 and LML&#8242; and an activating cocatalyst, and use of the catalyst system in polymerizing olefinic monomers. In either of the foregoing formulas, L is a chelating ligand containing sulfur donors; M is a transition metal selected from either copper, silver, gold, manganese, iron, cobalt, palladium or nickel; X1 and X2 are independently selected from either halides, hydride, triflate, acetate, borate, alkyl, alkoxyl, cycloalkyl, cycloalkoxyl, aryl, thiolate, carbon monoxide, cyanate or olefins; and L&#8242; is a bidentate ligand selected from either dithiolene, dithiolate, diphosphine, bisimine, bispyridine, phenanthroline, oxolate, catecholate, thiolatoamide, thiolatoimine or thiolatophosphine.
ExxonMobil Research and Engineering Company
C B C C C
C08F B01J C08F C08F C08F
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Edward Ira Abhimanyu Onkar Ernestine Williams Stephen Kun
Stiefel Patil Hill Zushma Wang