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:
Jul. 01, 2008
Filed:
Nov. 01, 2005
Anthony Charles Neubauer, Piscataway, NJ (US);
Fred D. Ehrman, Houston, TX (US);
H. Rodney Tunnell, Iii, Charleston, WV (US);
Anthony Charles Neubauer, Piscataway, NJ (US);
Fred D. Ehrman, Houston, TX (US);
H. Rodney Tunnell, III, Charleston, WV (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
A process of producing a polyolefin, in one embodiment a polyethylene, and in a preferred embodiment a bimodal polyethylene comprising a high molecular weight component and a low molecular weight component, the process comprising providing a polyolefin having an Ivalue of from 2 to 100 g/10 min and a density of from 0.91 to 0.97 g/cm; followed by forming a melt of the polyolefin and passing the polyolefin through one or more active screen filter(s) having a mesh size of from 70 to 200 micron at a mass flux of from 5 to 100 lbs/hr/square inch; and isolating the polyolefin having passed through the screen filter.