US Patent Issued to F.LLI Maris on Nov. 3 for "Process for the recovery and devulcanization of cross-linked rubber" (Italian Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,739, issued on Nov. 3, was assigned to F.LLI Maris S.P.A. (Rosta, Italy).

"Process for the recovery and devulcanization of cross-linked rubber" was invented by Gianfranco Maris (Rivoli, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for recovery and devulcanization of vulcanized rubber is provided. The process takes place in a plant including a mill for grinding vulcanized rubber into particles, a twin-screw extruder provided with a device for forced feeding of vulcanized rubber particles and a thermostatting device, a single-screw extruder arranged downstream of the twin-screw extruder and equipped with a thermostatting device, a fil...