Patent ID: 8148470
Filing Date: 2012-04-03
Classification: C08F

Abstract:
1. A process to make a multimodal polyolefin composition comprising: (i) contacting at least one first olefin monomer with a mixed catalyst system, under polymerization conditions, to produce at least a first polyolefin component having a Mw of 5,000 g/mol to 600,000 g/mol, wherein the mixed catalyst system comprises: (ii) thereafter, contacting the first polyolefin component/mixed catalyst system combination with a molecular switch; (iii) contacting the first polyolefin component/mixed catalyst system combination with at least one second olefin monomer, which may be the same or different as the first olefin monomer, under polymerization conditions; and (iv) obtaining a multimodal polyolefin composition.