US Patent Issued to Covestro Deutschland on March 11 for "Polycarbonate blend having reduced disturbing noise" (German Inventor)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,122, issued on March 11, was assigned to Covestro Deutschland AG (Leverkusen, Germany).

"Polycarbonate blend having reduced disturbing noise" was invented by Kristina Pupovac (Dusseldorf, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a moulding compound containing: A) at least one polymer selected from the group consisting of polycarbonate and polyester carbonate; B) a polymer containing B1) at least one rubber-modified vinyl(co)polymer containing B1.1) 80 to 95 wt. %, based on B1, of at least one vinyl monomer and B1.2) 5 to 20 wt. %, based on B1, of one or more rubber-elastic polybutadiene-containing graf...