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. 07, 2021
Filed:
Jul. 11, 2018
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Henricus Johannes Cornelis Den Ouden, Helsinki, FI;
Valery Sokolovskii, Helsinki, FI;
Thomas R. Boussie, Helsinki, FI;
Gary M. Diamond, Helsinki, FI;
Eric L. Dias, Helsinki, FI;
Guang Zhu, Helsinki, FI;
Staffan Torssell, Helsinki, FI;
Vincent J. Murphy, Helsinki, FI;
Assignee:
Stora Enso Oyj, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/68 (2006.01);
U.S. Cl.
CPC ...
C07D 307/68 (2013.01);
Abstract
The present disclosure provides processes for the purification of 2,5-furandicarboxylic acid (FDCA). The present disclosure further provides crystalline preparations of purified FDCA, as well as processes for making the same. In addition, the present disclosure provides mixtures used in processes for the purification of FDCA.