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. 31, 2015
Filed:
Jun. 29, 2011
Robert J. Jorgensen, Scott Depot, WV (US);
Sean W. Ewart, Pearland, TX (US);
Richard E. Campbell, Jr., Midland, MI (US);
Daryoosh Beigzadeh, Midland, MI (US);
Robert D. Froese, Midland, MI (US);
Peter M. Margl, Midland, MI (US);
Robert J. Jorgensen, Scott Depot, WV (US);
Sean W. Ewart, Pearland, TX (US);
Richard E. Campbell, Jr., Midland, MI (US);
Daryoosh Beigzadeh, Midland, MI (US);
Robert D. Froese, Midland, MI (US);
Peter M. Margl, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A process for polymerizing ethylene to produce an ethylene-based polymer including contacting ethylene with a Ziegler-Natta procatalyst, an alkylaluminum cocatalyst and a self limiting agent selected from the group of aliphatic, cycloaliphatic, substituted cycloaliphatic or aromatic esters, anhydrides and amides such that the self limiting agent reduces polymerization rates to no greater than 40% of the polymerization rate in the absence of the self limiting agent at temperatures equal to or greater than 120° C. is provided.