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:
May. 26, 2026
Filed:
May. 26, 2021
Archer Daniels Midland Company, Decatur, IL (US);
Kenneth F. Stensrud, Decatur, IL (US);
William Chris Hoffman, Decatur, IL (US);
ARCHER-DANIELS-MIDLAND COMPANY, Decatur, IL (US);
Abstract
A process is described for the determination of soluble aldehydes in a composition including one or more of (a) 2,5-furandicarboxylic acid (FDCA), (b) terephthalic acid (TPA), (c) an ester of 2,5-furandicarboxylic acid and (d) an ester of terephthalic acid. The process can indicate the presence in the composition of even those very low levels of such soluble aldehydes that have been associated with the development of unacceptable color in a) the composition, b) some portion of the composition or c) a prepolymer, oligomer or polymer prepared, directly or indirectly, at least in part from the composition or some portion of the composition, so that mitigating or corrective measures can be undertaken in response.