US Patent Issued to HANWHA SOLUTIONS on April 8 for "Polycarbonate copolymer, method for preparing same, and composition comprising same" (South Korean Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,921, issued on April 8, was assigned to HANWHA SOLUTIONS Corp. (Seoul, South Korea).

"Polycarbonate copolymer, method for preparing same, and composition comprising same" was invented by Jin Seo Lee (Seoul, South Korea), Do Kyoung Kim (Seoul, South Korea), Do Hyun Seo (Seoul, South Korea), Min Jae Jeong (Seoul, South Korea) and Seung Hwan Moon (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The polycarbonate copolymer of the present invention comprises: a unit derived from at least one type of primary dihydroxyl compound; and a unit derived from at least two types of secondary dihydroxyl compounds, wherein the polycarbonate copoly...