US Patent Issued to GUANGDONG PROVINCIAL ACADEMY OF BUILDING RESEARCH GROUP on Feb. 4 for "Composite coating for eliminating pollution by heavy metal chromium and VOCs from source and preparation method" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,426, issued on Feb. 4, was assigned to GUANGDONG PROVINCIAL ACADEMY OF BUILDING RESEARCH GROUP Co. LTD (Guangdong, China).

"Composite coating for eliminating pollution by heavy metal chromium and VOCs from source and preparation method" was invented by Kai Zhang (Guangdong, China), Shichao Yang (Guangdong, China) and Yang Ma (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a composite coating for eliminating pollution by chromium and VOCs from a source, the coating comprising a conversion film layer and a coating surface layer. The conversion film layer is made of a surface pretreatment liquid, and the surface pretreatmen...