COMPOSITION CONTAINING GRAPHENE AND GRAPHENE NANOPLATLETS AND METHOD OF MANUFACTURE THEREOF Russian patent published in 2021 - IPC C08F2/44 C08F2/56 C08F12/08 C08K3/04 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions containing graphene and graphene nanoplatlets stably dispersed in a solvent. Said composition is characterized by containing at least 1 wt.%, relative to the total weight of the solvent, of vinyl aromatic polymer, including a weight concentration of graphene and graphene nanoplatlets (GRS) in the range from 0.05 to 5 wt.%, relative to the total weight of the solvent; where said vinyl aromatic polymer is produced by partial or complete polymerization of the corresponding vinyl aromatic monomer, separately or mixed with up to 50 wt.% of additional copolymerizable monomers, and provided that the sum of possible content of the indicated non-reacting monomers and content of the produced vinyl aromatic polymer equals at least 10 wt.% relative to the total weight of the solvent, and where graphene and graphene nanoplatlets have an average thickness of 50 nm or less.

EFFECT: production of compositions containing graphene and graphene nanoplatlets with high degree of exfoliation and production of stable dispersions.

28 cl, 18 ex, 14 dwg