ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,877, issued on Sept. 16, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Acrylic copolymer coagulant and method of preparing graft copolymer using the same" was invented by Hee Jung Jeon (Daejeon, South Korea), Geon Soo Kim (Daejeon, South Korea), Moon Ja Hwang (Daejeon, South Korea), Hyung Joon Kim (Daejeon, South Korea), Chang Hoe Kim (Daejeon, South Korea) and Min Su Chae (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an acrylic copolymer coagulant which is a copolymer of a monomer mixture comprising a carboxylic acid-based monomer and an acrylic monomer, and a method of preparing a graft ...