US Patent Issued to SOOCHOW UNIVERSITY on Nov. 3 for "Polyamino acid-grafted modified water-repellent fabric and preparation method therefor" (Chinese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,428, issued on Nov. 3, was assigned to SOOCHOW UNIVERSITY (Suzhou, China).

"Polyamino acid-grafted modified water-repellent fabric and preparation method therefor" was invented by Zhanxiong Li (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An amino group is grafted to a fiber surface, the ring-opening polymerization of aniline acid anhydride is initiated by the amino group on the fiber surface to form a graft chain, and a water-repellent fabric the fiber surface of which is modified by polyamino acid is prepared. The fabric treatment uses an amino group pre-grafted on a fiber surface as an initiator in the liquid phase, and initiates (...