Ligands for catalysts
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United States of America Patent
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Aug 1, 2017
Grant Date -
Feb 4, 2016
app pub date -
Feb 21, 2014
filing date -
Mar 15, 2013
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Abstract
Catalyst systems and methods for making and using the same. A catalyst system can include a non-metallocene catalyst having the structure: wherein M is a group 4 element, each of R13-R20 are independently a hydrogen or a methyl group, wherein at least one of R13-R20 is a methyl group, Ar is an aryl group or a substituted aryl group, Ar′ is an aryl group or a substituted aryl group, and each X is, independently, a hydride group, an amide, a benzyl group, a methyl group, a chloro group, a fluoro group, or a hydrocarbyl group.
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