US Patent Issued to Sumitomo Chemical on Nov. 4 for "Powder supply method and production method for thermoplastic resin composition" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,941, issued on Nov. 4, was assigned to Sumitomo Chemical Co. Ltd. (Tokyo).

"Powder supply method and production method for thermoplastic resin composition" was invented by Nozomi Ishihara (Ichihara, Japan) and Tadashi Fukunaka (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A powder supply method for causing a powder supplied from a top end 70t of a tube 70 to flow down within the tube 70 and be discharged from a bottom end 70b of the tube, in which if M [kg/s] is a supply flow rate of the powder and AS [m2] is a cross-sectional area of the bottom end 70b of the tube 70, the following expression is satisfied.1.5less than equal to(M/AS)le...