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. 18, 2003
Filed:
Jul. 24, 2001
Randal Ray Ford, Longview, TX (US);
William Albert Ames, Longview, TX (US);
Kenneth Alan Dooley, Longview, TX (US);
Jeffrey James Vanderbilt, Longview, TX (US);
Alan George Wonders, Longview, TX (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more other olefin(s) under polymerization conditions with a Ziegler-Natta type catalyst, at least one halogenated hydrocarbon, at least one compound of the formula X ER as a co-catalyst and at least one compound containing at least one carbon-oxygen-carbon linkage (C—O—C) of the formula R —O(—R —O) —R as an external electron donor. Also provided are films and articles produced therefrom.