ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,804, issued on July 22, was assigned to NISSIN CHEMICAL INDUSTRY Co. LTD. (Echizen, Japan).

"Vinyl chloride-based resin emulsion, water-based ink, and recording paper" was invented by Yudai Susuki (Echizen, Japan), Yasuhiro Mitta (Echizen, Japan) and Takashi Kimura (Echizen, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides: a vinyl chloride-based resin emulsion of a polymerization product composed of (A) a polycarbonate urethane oligomer having a number average molecular weight of 5,000 to 50,000 and (B) a monomer composition containing a vinyl chloride monomer, wherein the polycarbonate urethane oligomer (A) havin...