Patent ID: 8957168
Filing Date: 2015-02-17
Classification: C08F,C08L,Y10S

Abstract:
1. A method of controlling a polymerization reaction in a polymerization reactor system, the method comprising: (i) contacting a dual catalyst system with an olefin monomer and an optional olefin comonomer in the polymerization reactor system under polymerization conditions to produce an olefin polymer, wherein the dual catalyst system comprises a first metallocene catalyst component, a second metallocene catalyst component, an activator, and a co-catalyst; and (ii) introducing an amount of an alcohol compound into the polymerization reactor system to (I) reduce a melt index parameter of the olefin polymer; (II) increase a molecular weight parameter of the olefin polymer selected from Mw, Mz, or both; or (III) reduce a melt index parameter of the olefin polymer and increase a molecular weight parameter of the olefin polymer selected from Mw, Mz, or both.