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:
Jun. 09, 2009
Filed:
Jun. 12, 2008
Applicant:
Michael Schiendorfer, Frankfurt, DE;
Inventor:
Michael Schiendorfer, Frankfurt, DE;
Assignee:
Basell Polyolefine GmbH, Wesseling, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 17/00 (2006.01); C07F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for making siloxy-bridged ligand precursors and metallocene complexes is disclosed. Indanone enolates react with cyclopentadienylsilyl compounds to produce ligand precursors, which are reacted with a Group 3-10 transition metal source to generate metallocene complexes. The method provides simple, regioselective access to particular siloxy-bridged metallocenes starting from easily elaborated indanones.