ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,990, issued on Nov. 25, was assigned to LG CHEM Ltd. (Seoul, South Korea).

"Thermoplastic resin composition and exterior material including the same" was invented by Daeun Sung (Daejeon, South Korea), Tae Hoon Kim (Daejeon, South Korea), Chun Ho Park (Daejeon, South Korea), Yong Hee An (Daejeon, South Korea), Wangrae Joe (Daejeon, South Korea), Ho Hoon Kim (Daejeon, South Korea) and Jeongmin Jang (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition included 90 to 99.5% by weight of styre...