Control of polymer architecture and molecular weight distribution via multi-centered shuttling agent
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United States of America Patent
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May 24, 2011
Grant Date -
Nov 6, 2008
app pub date -
Sep 14, 2006
filing date -
Sep 15, 2005
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Abstract
A process for the polymerization of one or more addition polymerizable monomers and the resulting polymer composition, said process comprising contacting an addition polymerizable monomer or mixture of monomers in a reactor or reactor zone with a composition comprising at least one polymerization catalyst and a cocatalyst under polymerization conditions, characterized in that at least a portion of said polymerization is conducted in the presence of a multi-centered shuttling agent thereby causing the composition to have a bimodal molecular weight distribution.
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