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. 04, 2025
Filed:
Feb. 18, 2020
Applicant:
Symrise Ag, Holzminden, DE;
Inventors:
Nikolas Bugdahn, Holzminden, DE;
Diego Jaime, Holzminden, DE;
Bernhard Rußbüldt, Höxter, DE;
Frank Strüver, Hameln, DE;
Assignee:
Symrise AG, Holzminden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/31 (2006.01); B01J 29/70 (2006.01);
U.S. Cl.
CPC ...
C07C 5/31 (2013.01); B01J 29/7038 (2013.01); C07C 2529/06 (2013.01); C07C 2601/16 (2017.05);
Abstract
The invention relates to a method for producing limonene comprising or consisting of the following steps: (a) providing beta-pinene or a beta-pinene containing starting material: (b) admixing the starting material with a catalytically effective amount of a MWW-type zeolite: (C) heating the reaction mixture to a temperature in the range of between 60 and 100° C.; and optionally (d) separating the limonene or a limonene-enriched fraction from the sump.