US Patent Issued to DOW GLOBAL TECHNOLOGIES, ROHM AND HAAS on March 24 for "Copolymer additive" (Chinese, American Inventors)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,959, issued on March 24, was assigned to DOW GLOBAL TECHNOLOGIES LLC (Midland, Mich.) and ROHM AND HAAS COMPANY (Collegeville, Pa.).

"Copolymer additive" was invented by Longlan Cui (Shanghai), Shaoguang Feng (Shanghai), Rui Wang (Shanghai), Jieying Chen (Shanghai), James C. Bohling (Lansdale, Pa.), Alvin M. Maurice (Lansdale, Pa.), Chen Chen (Shanghai) and Xiuqing Xu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A copolymer additive comprising water and a copolymer prepared from an acetoacetamide functional monomer and a ureido monomer is stable in a wide range of pH values and a coating composition comprising such copolymer additive ca...