US Patent Issued to LG CHEM on May 6 for "Method of preparing vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer, and thermoplastic resin composition including graft copolymer" (South Korean Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,591, issued on May 6, was assigned to LG CHEM Ltd. (Seoul, South Korea).

"Method of preparing vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer, and thermoplastic resin composition including graft copolymer" was invented by Yoo Vin Kim (Daejeon, South Korea), Jae Min Suk (Daejeon, South Korea), Young Hwan Jeong (Daejeon, South Korea) and Changhong Park (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A copolymer is prepared by graft-polymerizing 20 to 40% of an aromatic vinyl compound and 1 to 20% of a vinyl cyanide compound onto 50 to 70% of conjugated diene rubber latex having a solids con...