ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,670, issued on Feb. 24, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Super absorbent polymer" was invented by Sung Soo Park (Daejeon, South Korea), Hee Chang Woo (Daejeon, South Korea), Jun Wye Lee (Daejeon, South Korea) and Kwang In Shin (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A super absorbent polymer may exhibit improved absorption rate and absorption performance. The super absorbent polymer may be a polyacrylic acid or salt thereof-based super absorbent polymer. The superabsorbent polymer may have a value F1 from 0.55 to 0.65 calculated by Equation 1: F1=K1(0.5)x[{(A(CRC)0.1xC(Convexity)xD(Circularity)0.5)}/(B...