Abstract: The present invention describes a method for determining reactor continuity of a polymerization reactor by non-linear dynamics. Specifically, the invention relates to a method of analyzing system variables to indicate gas phase reactor continuity in real-time and controlling the reactor continuity to maintain operability.
Type:
Grant
Filed:
November 18, 2002
Date of Patent:
June 5, 2007
Assignee:
Unication Technolofies, LLC
Inventors:
Michael E. Muhle, Ke Nguyen, Charles E.A. Finney, Stuart C. Daw
Abstract: Linear low density polyethylenes (LLDPES) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS). This combination of melt properties is achieved by a substantially non blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.
Type:
Grant
Filed:
October 6, 2000
Date of Patent:
May 11, 2004
Assignee:
Univation Technologies, LLC.
Inventors:
Armenag Hagop Dekmezian, Natalie Ann Merrill
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