ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,816, issued on June 9, was assigned to VITO NV (Mol, Belgium).
"Thermoplastic polyurethanes derived from lignin monomers" was invented by Ortiz Pablo Urraca (Mol, Belgium) and Richard Vendamme (Mol, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "In general the present invention relates to thermoplastic polyurethanes containing lignin-derived monomers, lignin model compounds or the products of their respective functionalization in their structure. More specifically, this process relates to the use of 4-hydroxylalkylphenols and their derivatives as lignin-derived monomers or lignin model compounds. These can act either as chain extenders or be ...