ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,952, issued on Jan. 20, was assigned to Evonik Operations GmbH (Essen, Germany).
"Self-cleaning coating composition" was invented by Yong Bing Chong (Singapore), Kong Chin Chew (Singapore), Jia Wen Hah (Singapore) and Madeline Christabel (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coating composition has 5-15% by weight of a polymeric binder selected from a polyester polyol, an acrylic polyol, an epoxy, silicone, a silicone hybrid and a fluoropolymer. The composition has 20-40% by weight of microparticles, where the microparticles are made of a polyamide, a polyethylene, a polypropylene, a polyurea, a polyurethane, a polymethyl metha...