ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,263, issued on Aug. 26, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Graft copolymer and method for preparing same" was invented by Gyu Il Lee (Daejeon, South Korea), Byeong Joon Jeong (Daejeon, South Korea), Woo Seon Choi (Daejeon, South Korea), Young Hyun Choi (Daejeon, South Korea) and Eung Seob Yeom (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a graft copolymer and a method for preparing the same, wherein the graft copolymer has merits of a superior storage convenience compared to existing dry powder and a high whiteness index, and thus may be widely applied to various fields."
The...