US Patent Issued to CEAT on Oct. 20 for "Rubber masterbatch preparation" (Indian Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,770, issued on Oct. 20, was assigned to CEAT Ltd. (Mumbai Maharashtra, India).

"Rubber masterbatch preparation" was invented by Sambhu Bhadra (Vasna Vadodara, India), Sujith Sasidharan Nair (Sama Vadodara, India), Vivek Purohit (Vemali Vadodara, India) and Tuhin Saha (Vadodara, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a process of preparing an elastomer composite in an extruder, said process comprising: (a) providing at least one solid particulate ingredient in a first mixing zone to obtain a first mix; (b) providing at least one elastomer in a second mixing zone to obtain a second mix; (c) contacting th...