ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,840, issued on April 14, was assigned to DAICEL Corp. (Osaka, Japan).
"Cellulose acetate resin composition" was invented by Masaaki Kusumoto (Tokyo), Takafumi Kawasaki (Tokyo) and Akihiro Higuchi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cellulose acetate resin composition may include a cellulose acetate (A) having a total degree of acetyl substitution of 2.60 or less; a filler (B); and a plasticizer (C). The filler (B) may be selected from the group consisting of (b1) a predetermined inorganic compound, (b2) a predetermined metal salt, (b3) cellulose or hemicellulose, and (b4) wood flour. The plasticizer (C) may be selected from (c1)...