Olefin polymerization with polymer bound single-site catalysts
AssigneeEquistar Chemicals, LP
InventorsShaotian Wang, Shao-Hua Guo
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Abstract
Disclosed is a process for polymerizing olefins. The process comprises polymerizing one or more olefins with a single-site catalyst in two or more polymerization stages. The catalyst comprises a transition metal complex, an activator, and a hydroxyl functional polymer. The complex, the activator, or both are chemically bound to the hydroxyl functional polymer.
Claims23
A process which comprises polymerizing an olefin in two or more stages with a single-site catalyst comprising a transition metal complex, an activator, and a hydroxyl functional polymer wherein the complex, the activator, or both are chemically bound to the hydroxyl functional polymer, and wherein the hydroxyl functional polymer is an allylic alcohol polymer.
A process which comprises polymerizing an olefin in two or more stages with a single-site catalyst comprising a transition metal complex, an activator, and a hydroxyl functional polymer wherein the complex, the activator, or both are chemically bound to the hydroxyl functional polymer, and wherein the transition metal complex has at least one indenoindolyl ligand.
Dependencies are inferred from the claim text.