ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,586, issued on Jan. 27, was assigned to VERSALIS S.p.A. (San Donato Milanese, Italy).
"Composition containing graphene and graphene nanoplatelets and preparation process thereof" was invented by Riccardo Felisari (S. Giorgio di Mantova, Italy) and Viviana Autieri (Pellezzano, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process for preparing a composition from graphite material by contacting the graphite material with a main solvent comprising at least 10% by weight, with respect to a total weight of the main solvent, of a vinyl aromatic monomer alone or in a mixture up to 50% by weight with additional copolymerizable monomers, thereby for...