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:
Dec. 19, 2023
Filed:
Jul. 26, 2021
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Johannes Kraft, Niederkassel, DE;
Lena Altmann, Dorsten, DE;
Johan Anton, Dorsten, DE;
Michael Grass, Haltern am See, DE;
Thomas Schneider, Schermbeck, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 5/12 (2006.01); C09D 7/63 (2018.01); B01J 21/06 (2006.01); B01J 23/46 (2006.01); C07C 51/36 (2006.01); C09J 11/06 (2006.01);
U.S. Cl.
CPC ...
C08K 5/12 (2013.01); B01J 21/063 (2013.01); B01J 23/462 (2013.01); C07C 51/36 (2013.01); C09D 7/63 (2018.01); C09J 11/06 (2013.01);
Abstract
A process prepares dialkyl 1,4-cyclohexanedicarboxylates by ring hydrogenation of the corresponding dialkyl terephthalate having a CO value of less than 0.3 mg KOH/g. The dialkyl 1,4-cyclohexanedicarboxylates thus produced can be used as plasticizers or as a component of a plasticizer composition for plastics, in particular PVC.