US Patent Issued to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN on Oct. 27 for "Functional copolymer of a 1,3-diene and ethylene or a 1,3-diene, ethylene and an Alpha-monoolefin" (French Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,357, issued on Oct. 27, was assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (Clermont-Ferrand, France).

"Functional copolymer of a 1,3-diene and ethylene or a 1,3-diene, ethylene and an Alpha-monoolefin" was invented by Francois Jean-Baptiste-Dit-Dominique (Clermont-Ferrand Cedex, France), Robert Ngo (Clermont-Ferrand Cedex, France) and Julien Thuilliez (Clermont-Ferrand Cedex, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A copolymer of a 1,3-diene and of an olefin is provided. The copolymer bears, at one of its chain ends, a functional group of formula -CH2-CH(CH3)-COOZ, Z being a hydrogen atom or a carbon-comprising group. A pr...