US Patent Issued to Dow Global Technologies on March 24 for "Coupled post-consumer recycled polypropylene and process to provide same" (Swiss Inventor)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,979, issued on March 24, was assigned to Dow Global Technologies LLC (Midland, Mich.).

"Coupled post-consumer recycled polypropylene and process to provide same" was invented by Olaf Henschke (Horgen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a process. The process includes (i) providing a post-consumer recycled polypropylene (PCR-PP) having a melt flow rate (MFR I2) equal to, or greater than, 7.0 g/10 min; (ii) adding a 4,4'-oxydibenzenesulfonyl azide (DPO-BSA) to the PCR-PP; (iii) melt blending the PCR-PP with the DPO-BSA; and (iv) forming a DPO-BSA coupled PCR-PP having a melt flow rate (MFR I2) e...