Back to results
US 2013/0253153 A1Published application
Processes for the Polymerization of Olefins with Extracted Metal Carboxylate Salts
AssigneeUnivation Technologies, LLC
InventorsR. Eric Pequeno, Fathi David Hussein, Kevin Joseph Cann, Chi-I Kuo, Bruce Jon Savatsky, Eric J. Markel, Daniel Paul Zilker, Jr., Agapios Kyriacos Agapiou, David M. Glowczwski
Life of this patent
Estimating the term…
Abstract
Processes for the polymerization of olefins with extracted metal carboxylate salts are provided. The polymerization processes have increased productivity and/or increased resin bulk density.
Claims21
A polymerization process comprising:
- polymerizing an olefin in a reactor in the presence of a catalyst composition and an extracted metal carboxylate salt, wherein the extracted metal carboxylate salt was produced by extraction of a metal carboxylate salt with an organic solvent having a dielectric constant at 25° C. of greater than or equal to 3.0.
(canceled)
A polymerization process for the production of an ethylene alpha-olefin copolymer, the polymerization process comprising:
- contacting ethylene and an alpha-olefin with a catalyst composition in a reactor under polymerization conditions to produce the ethylene alpha-olefin copolymer, wherein the catalyst composition comprises a polymerization catalyst and a first extracted metal carboxylate salt, wherein the first extracted metal carboxylate salt was produced by extraction of a metal carboxylate salt with an organic solvent having a dielectric constant at 25° C. of greater than or equal to 3.0;
- and
- adding a continuity additive comprising a second extracted metal carboxylate salt into the reactor, wherein the continuity additive and the catalyst composition are added to the reactor separately, wherein the second extracted metal carboxylate salt was produced by extraction of a metal carboxylate salt with an organic solvent having a dielectric constant at 25° C. of greater than or equal to 3.0.
Dependencies are inferred from the claim text.