US Patent Issued to Covestro Deutschland on July 28 for "One-component aqueous spray adhesive" (Chinese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,420, issued on July 28, was assigned to Covestro Deutschland AG (Leverkusen, Germany).

"One-component aqueous spray adhesive" was invented by Chenxi Zhang (Shanghai), Feng Zhu (Shanghai) and Ling Qiu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a one-component aqueous spray adhesive. The spray adhesive includes an aqueous chloroprene dispersion, where the increase of the Shore A hardness of the formed adhesive film in 0 to 10 hours accounts for equal to or more than 90% of the increase of the Shore A hardness of the formed adhesive film in 0 to 1000 hours; a styrene-acrylate copolymer dispersion having a solid content of 15% ...