▎ 摘　　要

NOVELTY - Coating a substrate, comprises preparing an aqueous dispersion from an aqueous polymer dispersion whose dispersion polymer has a glass transition temperature of greater than or equal to 0 degrees C and an aqueous graphene dispersion, applying the aqueous polymer dispersion to surface of a substrate, and drying greater than minimum film forming temperature of the aqueous polymer dispersion at temperature T. The weight content of graphene per 100 pts. wt. dispersion polymer (solid/solid) is greater than or equal to 0.01 to less than or equal to 10 pts. wt. USE - The method is useful for coating substrate (claimed). The aqueous dispersion is useful for preparing coating formulations, sealants, synthetic plasters and paper coating compositions (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for coated substrate, obtained by the above mentioned method.