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US 2010/0063227 A1Published application
Catalyst systems and polymerization processes
AssigneeUnivation Technologies, LLC
InventorsNatarajan Muruganandam, Jeevan Abichandani, Kersten A. Terry, Hemant G. Patel, George Rodriguez
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Abstract
A method of polymerizing olefins with catalyst systems, such as, for example, a multimodal catalyst system, wherein the catalyst system is stored at a controlled temperature to minimize loss of catalyst system productivity.
Claims36
A method of polymerizing olefins comprising:
- (a) providing a multimodal catalyst system;
- (b) storing the multimodal catalyst system at a controlled temperature;
- (c) contacting the multimodal catalyst system with a monomer selected from the group consisting of C2 to C4 alpha olefins in a polymerization process;
- and
- (d) producing a multimodal polymer.
2 more elements
A method of controlling the aging of a multimodal catalyst comprising:
- (a) providing a multimodal catalyst system comprising a bisamide catalyst system and a non-bisamide catalyst system;
- and
- (b) transporting the multimodal catalyst system in a portable vessel, wherein the portable vessel is kept at a controlled temperature of less than about 21° C., less than about 1° C., or less than about −9° C.
Dependencies are inferred from the claim text.