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:
Aug. 15, 2006
Filed:
Aug. 21, 2002
Applicants:
Claus-peter Reisinger, Wixom, MI (US);
Sven Michael Hansen, Leverkusen, DE;
Peter Fischer, Köln, DE;
Inventors:
Claus-Peter Reisinger, Wixom, MI (US);
Sven Michael Hansen, Leverkusen, DE;
Peter Fischer, Köln, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 69/96 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the preparation of an aromatic carbonate is disclosed. The process entails reacting an aromatic hydroxy compound of the formula R—(O—H), with carbon monoxide and oxygen, optionally in a solvent and in the presence of catalyst components, characterized in that after an initial partial charge of R—(O—H)to the reaction mixture, the balance thereof is subsequently metered into the reaction mixture at least once in the course of the reaction.