US Patent Issued to VERSALIS on June 30 for "Process for the preparation of styrene-butadiene rubbers comprising recycled rubber powder" (Italian Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,685, issued on June 30, was assigned to VERSALIS S.P.A. (San Donato Milanese, Italy).

"Process for the preparation of styrene-butadiene rubbers comprising recycled rubber powder" was invented by Gabriele Gatti (Ravenna, Italy), William Montanari (Ravenna, Italy), Costantino Perretta (Ferrara, Italy) and Giovanni Regattieri (Ravenna, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for preparing a styrene-butadiene rubber includes micronized recycled rubber powder and includes the following steps: preparing a suspension having micronized recycled rubber powder, water and at least one surfactant; mixing the suspension from step (a) with ...