Polymerization process
AssigneeExxonMobil Chemical Patents Inc.
InventorsDavid J. Sandell, Marc L. De Chellis, Fred D. Ehrman
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Abstract
A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including a majority of 2,2-dimethylpropane under polymerizable conditions to produce a polyolefin polymer is provided.
Claims20
A polymerization process, the process comprising contacting one or more monomers, at least one catalyst system, and a condensing agent comprising a majority of 2,2-dimethylpropane under polymerizable conditions in a fluidized bed reactor operating in a condensed mode to produce a polyolefin polymer;
- wherein the production rate of the polyolefin polymer is at least 20% greater than the same process polymerizing with another C4-C8 condensing agent.
A polymerization process, the process comprising contacting one or more monomers, at least one catalyst system, and a condensing agent comprising a mixture of 2,2-dimethylpropane and at least another C4-C8 condensing agent under polymerizable conditions in a fluidized bed reactor operating in a condensed mode to produce a polyolefin polymer.
A polymerization process comprising, contacting one or more monomers, at least one catalyst system, and a condensing agent comprising a majority of 2,2-dimethylpropane under polymerizable conditions to produce a polyolefin polymer, wherein the polyolefin polymer is a copolymer of ethylene and one or more C3-C12 alpha-olefins, and wherein the production rate of the polyolefin polymer is at least 20% greater than the same process polymerizing with another C4-C8 condensing agent.
Dependencies are inferred from the claim text.