ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,901, issued on Nov. 11, was assigned to ZEON Corp. (Tokyo).
"Method for producing hollow particles" was invented by Masashi Watanabe (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing hollow particles, the method comprising: preparing a mixture liquid containing a first polymerizable monomer, a hydrocarbon solvent, a dispersion stabilizer and an aqueous medium, suspending the mixture liquid to prepare a suspension in which droplets of a monomer composition containing the first polymerizable monomer and the hydrocarbon solvent are dispersed in the aqueous medium, and subjecting the suspension to a polymerization reaction, wh...