US Patent Issued to Bostik on Oct. 7 for "Poly(3-hydroxyacid) polymers from long-chain epoxides and their uses related to hot melt adhesives" (Wisconsin Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,180, issued on Oct. 7, was assigned to Bostik SA (Puteaux, France).

"Poly(3-hydroxyacid) polymers from long-chain epoxides and their uses related to hot melt adhesives" was invented by Steven D. Gray (Wauwatosa, Wis.) and Darius Deak (Wauwatosa, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A macromolecule comprises a ring-opened polymerized product of Beta-lactone monomers of formula I: and having a structure of formula IA: wherein R1 is an alkyl group having at least 8 carbon atoms. The macromolecule may be hydroxy-terminated, and may be copolymerized with other Beta-lactone monomers having different substituting groups and/or with higher lac...