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. 25, 2024
Filed:
May. 25, 2022
Applicant:
Evonik Oxeno Gmbh & Co. KG, Marl, DE;
Inventors:
Dietmar Gubisch, Dorsten Rhade, DE;
Ralf Klaus Hinsken, Dorsten, DE;
Johannes Kraft, Niederkassel, DE;
Thomas Schneider, Schermbeck, DE;
Assignee:
Evonik Oxeno GmbH & Co. KG, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/54 (2006.01);
U.S. Cl.
CPC ...
C07C 67/54 (2013.01);
Abstract
A process discharges low boilers during production of dialkyl terephthalates or dialkyl phthalates having C8 to C11 alkyl radicals. The production is carried out using a C8 to C11 alcohol or a mixture of two or more C8 to C11 alcohols in one or more reactors. The low boilers formed during the reaction are separated off by an efficient process and thus cannot accumulate.