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. 01, 2012
Filed:
Oct. 25, 2007
Applicants:
Joerg Schulte, Frankfurt, DE;
Thorsten Sell, Worms, DE;
Matthew Grant Thorn, Lebanon, OH (US);
Andreas Winter, Neuleiningen, DE;
Anita Dimeska, Bad Durkheim, DE;
Inventors:
Joerg Schulte, Frankfurt, DE;
Thorsten Sell, Worms, DE;
Matthew Grant Thorn, Lebanon, OH (US);
Andreas Winter, Neuleiningen, DE;
Anita Dimeska, Bad Durkheim, DE;
Assignee:
Lummus Novolen Technology GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/6592 (2006.01); B01J 31/22 (2006.01); C07F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A metallocene compound with the 4- and 7-positions on the indenyl moiety possessing large aromatic substituents is prepared in accordance with a method which produces substantially 100 percent racemic isomer. Advantageously, polymerization catalysts including the metallocene of the invention provide superior olefin polymerization results.