US Patent Issued to Chevron Oronite, ExxonMobil Chemical Patents on April 7 for "Ethylene copolymers and use as viscosity modifiers" (California, Texas Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,324, issued on April 7, was assigned to Chevron Oronite Co. LLC (Richmond, Calif.) and ExxonMobil Chemical Patents Inc. (Houston).

"Ethylene copolymers and use as viscosity modifiers" was invented by Sara Zhang (Danville, Calif.), Maryam Sepehr (San Ramon, Calif.), David Morgan (Pleasanton, Calif.) and Jingwen Zhang (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some embodiments, the present disclosure provides for ethylene-C3 to C20 alpha-olefins random copolymers having an ethylene content of about 45 wt % to about 70 wt % and a Mw(DRI)/Mn(DRI) of from 1.1 to 1.9. In some embodiments, the ethyl-C ene-propylene random copolymer is used ...