ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,161, issued on Sept. 1, was assigned to Siegwerk Druckfarben AG & Co. KGaA (Siegburg, Germany).
"Solvent-based oxygen barrier coating composition" was invented by Ashish Datt (West Des Moines, Iowa), Ayuna Tsyrenova (Urbandale, Iowa) and Hannah Rothfuss (Siegburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is related to a solvent-based composition for preparing an oxygen barrier coating, comprising a binder polymer containing polar functional groups that are capable of interacting with an acidic group; an acid containing at least two reactive acidic groups; and an organic solvent. The present invention is furthermor...