US Patent Issued to IDEMITSU KOSAN on Feb. 3 for "Polycarbonate/polyorganosiloxane copolymer and resin composition including said copolymer" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,218, issued on Feb. 3, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).

"Polycarbonate/polyorganosiloxane copolymer and resin composition including said copolymer" was invented by Minoru Yabukami (Ichihara, Japan) and Shinobu Yamao (Ichihara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polycarbonate-polyorganosiloxane copolymer, which is produced by using a diol monomer (a1) and a polyorganosiloxane (a2) satisfying the following condition, including: a polyorganosiloxane block (A-1) including a specific repeating unit; and a polycarbonate block (A-2) formed of a specific repeating unit: a mixture, which is obtained by bringing ...