US Patent Issued to SWIMC on June 2 for "Oxirane-functional vinyl monomers and methods for making the same" (French Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,007, issued on June 2, was assigned to SWIMC LLC (Cleveland).

"Oxirane-functional vinyl monomers and methods for making the same" was invented by Benoit Prouvost (Nantes, France) and Matthieu Andriot (Attignat, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for making a monomer includes reacting an alkanol-substituted phenol with epihalohydrin in the presence of a phase transfer catalyst at a temperature of 50deg C. or lower to produce a first intermediate product. The method further includes removing excess epihalohydrin, and after removing excess epihalohydrin, contacting the first intermediate product with a base to produce a secon...