US Patent Issued to SHANGHAI CO-FUN BIOTECH on April 7 for "High-hydrophobic, low-bleeding color lake powder, method for preparing same and use thereof" (Chinese Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,372, issued on April 7, was assigned to SHANGHAI CO-FUN BIOTECH Co. LTD. (Shanghai).

"High-hydrophobic, low-bleeding color lake powder, method for preparing same and use thereof" was invented by Xu Xie (Shanghai), Rongmin Kang (Shanghai), Xiaohui Liu (Shanghai) and Jianjun Wu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A high-hydrophobic, low-bleeding color lake powder, a method for preparing the same and a use thereof are provided. A color lake powder is dispersed into water, and a pH value of a system is adjusted to a range of 4 to 5.5. Then surface treating agents such as a silane coupling agent, a titanate coupling agent, a hydrogen...