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:
Mar. 14, 2023
Filed:
Nov. 29, 2019
Applicant:
Haldor Topsøe A/s, Kgs. Lyngby, DK;
Inventors:
Amanda Birgitte Sølvhøj, Værløse, DK;
Rik De Clercq, Zandhoven, BE;
Esben Taarning, Frederiksberg, DK;
Assignee:
HALDOR TOPSØE A/S, Kgs. Lyngby, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 319/12 (2006.01);
U.S. Cl.
CPC ...
C07D 319/12 (2013.01);
Abstract
According to the present invention a process is provided for producing glycolide which comprises contacting glycolaldehyde dimer with an oxidizing agent to produce a glycolide product. Preferably, the process is carried out in an aprotic environment, such as in a reaction mixture comprising the glycolaldehyde dimer, the oxidizing agent, the glycolide product and an aprotic solvent.