ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,857, issued on Aug. 12, was assigned to KAO Corp. (Tokyo).
"Cellulose fiber composite" was invented by Shunsuke Fukui (Tokyo), Yutaka Yoshida (Wakayama, Japan), Minato Nakamura (Wakayama, Japan) and Shotaro Shibata (Wakayama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to [1] a cellulose fiber composite excellent in dispersion stability, in which at least one amine selected from a polyamine and a monoamine having a reactive functional group bonds to anion-modified cellulose fibers, and which satisfies at least one of amine introduction ratio of 60% or less (requirement 1) and average polymerization degree of anion-modi...