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:
Feb. 10, 2015
Filed:
Apr. 07, 2010
Applicants:
Andre Düx, Brühl, DE;
Helmut Mothes, Langenfeld, DE;
Kaspar Hallenberger, Leverkusen, DE;
Georg Ronge, Düsseldorf, DE;
Rafael Warsitz, Essen, DE;
Pieter Ooms, Krefeld, DE;
Johann Rechner, Kempen, DE;
Inventors:
Andre Düx, Brühl, DE;
Helmut Mothes, Langenfeld, DE;
Kaspar Hallenberger, Leverkusen, DE;
Georg Ronge, Düsseldorf, DE;
Rafael Warsitz, Essen, DE;
Pieter Ooms, Krefeld, DE;
Johann Rechner, Kempen, DE;
Assignee:
Bayer MaterialScience AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 68/06 (2006.01); C07C 69/96 (2006.01);
U.S. Cl.
CPC ...
C07C 68/06 (2013.01); C07C 68/06 (2013.01); C07C 69/96 (2013.01);
Abstract
The invention relates to a process for preparing diaryl carbonates and/or alkyl aryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using a reactive dividing wall column.