The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2012
Filed:
Jul. 21, 2006
Kevin J. Cann, Rocky Hills, NJ (US);
Ronald S. Eisinger, Charleston, WV (US);
Mark G. Goode, Hurricane, WV (US);
John H. Moorhouse, Kendall Park, NJ (US);
Cliff R. Mure, Hillsborough, NJ (US);
Stephen P. Jaker, Woodbridge, NJ (US);
Maria A. Apecetche, Bridgewater, NJ (US);
Kevin J. Cann, Rocky Hills, NJ (US);
Ronald S. Eisinger, Charleston, WV (US);
Mark G. Goode, Hurricane, WV (US);
John H. Moorhouse, Kendall Park, NJ (US);
Cliff R. Mure, Hillsborough, NJ (US);
Stephen P. Jaker, Woodbridge, NJ (US);
Maria A. Apecetche, Bridgewater, NJ (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
Disclosed herein are various processes, including continuous fluidized-bed gas-phase polymerization processes for making a high strength, high density polyethylene copolymer, comprising (including): contacting monomers that include ethylene and optionally at least one non-ethylene monomer with fluidized catalyst particles in a gas phase in the presence of hydrogen gas at an ethylene partial pressure of 100 psi or more and a polymerization temperature of 120° C. or less to produce a polyethylene copolymer having a density of 0.945 g/cc or more and an ESCR Index of 1.0 or more wherein the catalyst particles are prepared at an activation temperature of 700° C. or less, and include silica, chromium, and titanium.