ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,821, issued on June 9.
"Polyester, polyesteramide, and polyamide compositions" was invented by Ananthanarayanan V Iyer (Moraga, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Linear, comb, and star shaped non-ionic polyesters and copolyesters, polyesteramides, polyamides, and copolyamides may be synthesized from the condensation polymerization of polyacids containing alpha-hydroxy polyacids and diols and/or polyols, and amino-diols and/or amines using boric acid, boric anhydride, and boronic acids as catalysts. Depending on the polyol, polyamine, and amino alcohol component, the resulting compound may be hydrophilic or hydrophobic, but not wat...