Catalyst modifiers and their use in the polymerization of olefin(s)
AssigneeUnivation Technologies, LLC
InventorsTimothy T. Wenzel, Dick Alan Nagaki, Thomas Henry Peterson, David James Schreck
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Abstract
The present invention relates to the use of thermally triggered compounds that when used with a polymerization catalyst in a polymerization process results in the controllable generation of one or more catalyst inhibitors that renders the polymerization catalyst substantially or completely inactive.
Claims12
A process for polymerizing olefin(s) in the presence of a polymerization catalyst and a thermally triggered compound in a reactor at an operating temperature, wherein the thermally triggered compound chemically transforms at a temperature above the operating temperature to form one or more catalyst inhibitors that reduce the effectiveness of the polymerization catalyst to polymerize olefin(s).
In a process for polymerizing one or more olefins in the presence of a catalyst composition in a reactor operating at a polymerization temperature and a polymerization pressure to produce a polymer product, the process comprising thermally triggered compound compound that chemically transforms into at at least two catalyst inhibitors at a temperature above the polymerization temperature.
Dependencies are inferred from the claim text.