	US 12,258,325 B2
	Color stabilization of monomers and other reactants for forming bio-based polymers
Erik Hagberg, Decatur, IL (US); Chi Cheng Ma, Champaign, IL (US); and Kenneth F. Stensrud, Decatur, IL (US)
Assigned to Archer Daniels Midland Company, Decatur, IL (US); and DuPont Industrial Biosciences USA, LLC, Wilmington, DE (US)
Appl. No. 17/252,964
Filed by Archer Daniels Midland Company, Decatur, IL (US); and DuPont Industrial Biosciences USA, LLC, Wilmington, DE (US)
PCT Filed Jun. 18, 2019, PCT No. PCT/US2019/037646 § 371(c)(1), (2) Date Dec. 16, 2020, PCT Pub. No. WO2019/246034, PCT Pub. Date Dec. 26, 2019.
Claims priority of provisional application 62/686,415, filed on Jun. 18, 2018.
Prior Publication US 2021/0130311 A1, May 6, 2021
Int. Cl. C07D 307/68 (2006.01)

CPC C07D 307/68 (2013.01)

14 Claims

1. A monomer composition, consisting essentially of:

2,5-furan dicarboxylic acid (FDCA) or an esterified derivative thereof and a color stabilizing additive compound, wherein the esterified derivative is formed by the esterification of FDCA with methanol, ethanol, or phenol.