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:
Apr. 28, 2015
Filed:
Aug. 30, 2012
Peter Deglmann, Mannheim, DE;
Anna Katharina Brym, Limburgerhof, DE;
Bernhard Rieger, München, DE;
Maximilian Lehenmeier, München, DE;
Stephan Klaus, München, DE;
Peter Deglmann, Mannheim, DE;
Anna Katharina Brym, Limburgerhof, DE;
Bernhard Rieger, München, DE;
Maximilian Lehenmeier, München, DE;
Stephan Klaus, München, DE;
BASF SE Corporation, Ludwigshafen, DE;
Abstract
A macrocycle based on β-diketimines, a process for preparing the inventive macrocycle, an uncharged macrocyclic dimetallic complex based on the inventive macrocycle, and a process for preparing the uncharged macrocyclic dimetallic complex, the use of the uncharged macrocyclic dimetallic complex as a polymerization catalyst in the polymerization of carbon dioxide with one or more epoxides, a process for preparing polycarbonates by reacting carbon dioxide with one or more epoxides in the presence of the inventive uncharged macrocyclic dimetallic complex, and a polycarbonate prepared by the process according to the invention.