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:
May. 31, 2005
Filed:
Dec. 19, 2002
Jerome A. Streeky, Bolingbrook, IL (US);
David A. Kreider, Wheaton, IL (US);
Chi-hung Lin, Cockeysville, MD (US);
Mark G. Reichmann, Roswell, GA (US);
Jerome A. Streeky, Bolingbrook, IL (US);
David A. Kreider, Wheaton, IL (US);
Chi-Hung Lin, Cockeysville, MD (US);
Mark G. Reichmann, Roswell, GA (US);
Other;
Abstract
A gas-phase olefin polymerization process in a plug flow reactor uses a catalyst system containing a magnesium halide supported titanium-containing component, an organoaluminum component, and at least one external electron donor component; in the process a first external donor component is added to the reactor at an injection point axially near an injection point for the supported transition metal containing component, and at least a second external donor component is added to the reactor axially downstream from the injection point for the first external donor component.