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:
Nov. 22, 2005
Filed:
Sep. 23, 2004
Applicants:
Shaotian Wang, Mason, OH (US);
Douglas D. Klendworth, West Chester, OH (US);
Mark K. Reinking, Mason, OH (US);
Inventors:
Shaotian Wang, Mason, OH (US);
Douglas D. Klendworth, West Chester, OH (US);
Mark K. Reinking, Mason, OH (US);
Assignee:
Equistar Chemicals, LP, Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F004/50 ; C08F004/64 ; C08F004/44 ;
U.S. Cl.
CPC ...
Abstract
A process for polymerizing ethylene is disclosed. A magnesium chloride-alcohol is used to support an organometallic complex comprising a Group 3 to 10 transition metal and an indenoindolyl ligand. The supported organometallic complex is mixed with an activator and ethylene and the ethylene is polymerized. Use of magnesium chloride containing an alcohol as the support provides an unexpected boost in catalyst activity and improves polymer rheological properties.