ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,930, issued on Nov. 11, was assigned to DAICEL Corp. (Osaka, Japan).
"Porous cellulose particles and method for producing same" was invented by Toru Shibata (Tokyo), Hiromichi Okura (Tokyo) and Yuki Hirabayashi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are porous cellulose particles containing chitosan and having predetermined pores on a surface and a predetermined particle diameter, and a method for producing the porous cellulose particles. Porous cellulose particles including unsubstituted cellulose and chitosan, wherein a content of the chitosan is not greater than 20 mass % in a total of 100 mass % of the unsubstituted cellu...