ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,477, issued on July 29, was assigned to SKF RECONDOIL AB (Stockholm).
"Liquid composition for purification of oil" was invented by Thomas Persson (Sandviken, Sweden), Tomas Ostberg (Froson, Sweden) and Fred Sundstrom (Stockholm).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid composition for use in purifying an oil contains a polar polymer, a surface active hydrotrope/solubilizer, and a co-tenside. The polar polymer may be a polyalkylene glycol, such as polyethylene glycol. The hydrotrope/solubilizer may be an anionic sulfonic acid, a phosphate ester-based substance or a non-ionic surfactant from the poly-glycoside family. The co-tenside may ...