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. 23, 2011
Filed:
May. 16, 2008
Applicants:
Andre Düx, Brühl, DE;
Pieter Ooms, Krefeld, DE;
Johann Rechner, Kempen, DE;
Kaspar Hallenberger, Leverkusen, DE;
Georg Ronge, Düsseldorf, DE;
Johan Vanden Eynde, Zwijnaarde, BE;
Inventors:
Andre Düx, Brühl, DE;
Pieter Ooms, Krefeld, DE;
Johann Rechner, Kempen, DE;
Kaspar Hallenberger, Leverkusen, DE;
Georg Ronge, Düsseldorf, DE;
Johan Vanden Eynde, Zwijnaarde, BE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 69/96 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a process for the preparation of diaryl carbonates and/or alkylaryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using one or more intermediate condensers for improving heat integration.