ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,515, issued on April 21, was assigned to NIPPON SHOKUBAI Co. LTD. (Osaka, Japan).
"Method for producing compound" was invented by Hiroki Wada (Himeji, Japan), Masashi Mukae (Himeji, Japan), Yasutaka Takemoto (Himeji, Japan) and Toyofumi Sakai (Himeji, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a method capable of sufficiently reducing impurities with excellent separation efficiency even from a crystal-containing slurry that contains a low-purity mother liquor and has poor solid-liquid separation properties. The present invention relates to a method for producing a compound, the method including: a step of fe...