ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,039, issued on May 27, was assigned to INTERCOS S.P.A. (Milan).
"Cosmetic composition based on janus particles" was invented by Patrizia Valsesia (Calco, Italy), Gaetano Distefano (Bergamo, Italy) and Antonella Arnese (San Giuliano Milanese, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cosmetic composition comprising Janus particles, an aqueous phase and an organic phase uses Janus particles produced with a method which includes the preparation of hollow particles (1) having two non-continuous surfaces of a material with surface energy Alpha, of which the external one (2) is accessible and the internal one (3) is inaccessible. The surface ...