▎ 摘　　要

NOVELTY - Production of paste involves dissolving or mixing an organic solvent with methanol to obtain a methanol diluted solution of organic compound, flatly packing aggregates of scaly graphite particles or aggregates of massive graphite particles on a surface of one of two parallel plate electrodes, immersing the packed electrode in the diluted solution in a container, superposing the other electrode on immersed electrode, applying a direct current potential difference to the gap between the electrodes, applying an electric field to the aggregates of scaly graphite particles or aggregates of massive graphite particles, simultaneously destroying all interlayer bonds of basal plane forming the scaly graphite particles or the massive graphite particles to produce aggregates of graphene (1) corresponding to the basal plane in the gap between the electrodes and expanding the gap between the two electrodes, repeatedly applying vibration acceleration to the container. USE - Production of paste e.g. thermally-conductive paste used for forming film e.g. coating film or printing film (all claimed). Uses include but are not limited to electric circuit, internal electrode of laminated ceramic chip electronic component, electromagnetic wave shield material, and heat-sensitive substrate as printed wiring board. ADVANTAGE - The method enables economical production of paste. The paste enables simple and economical formation of film having improved thermal conductivity and electromagnetic wave shielding property. DETAILED DESCRIPTION - Production of paste involves dissolving or mixing an organic solvent which is capable of soluble or miscible in methanol and which has insulating property, a viscosity which is higher than 30 times the viscosity of methanol, a melting point of less than 10 degrees C and a boiling point of less than 180 degrees C, with methanol to obtain a methanol diluted solution of organic compound, having a viscosity which is 4-6 times the viscosity of methanol, flatly packing aggregates of scaly graphite particles or aggregates of massive graphite particles on a surface of one of two parallel plate electrodes, immersing the packed electrode in the methanol diluted solution of organic compound in a container, superposing the other electrode on immersed electrode, separating the electrodes through aggregates of scaly graphite particles or aggregates of the massive graphite particles, immersing the electrodes in the methanol diluted solution of organic compound, applying a direct current potential difference having a predetermined size to the gap between the electrodes, applying an electric field corresponding to a value obtained by dividing the magnitude of the potential difference by the size of the gap between the electrodes to the aggregates of scaly graphite particles or aggregates of massive graphite particles, simultaneously destroying all interlayer bonds of basal plane forming the scaly graphite particles or the massive graphite particles to produce aggregates of graphene corresponding to the basal plane in the gap between the electrodes and expanding the gap between the two electrodes, immersing the electrodes in the methanol diluted solution of organic compound in the container, repeatedly applying vibration acceleration in three directions of left-right, front-back, and up-down to the container to move the aggregates of graphene from the gap between the electrodes into the methanol diluted solution of the organic compound, taking out the electrodes from the container to produce aggregates of graphene dispersed in the methanol diluted solution of the organic compound in the container, transferring the aggregates of graphene dispersed in the methanol diluted solution of the organic compound to another container, and repeatedly applying vibration acceleration in three directions of left-right, front-back, and up-down to the container to overlap graphenes with each other via the methanol diluted solution of the organic compound. An INDEPENDENT CLAIM is included for formation of film, which involves laminating the aggregates of graphene dispersed in the methanol diluted solution of the organic compound on a substrate or a component to form a coating film or printing film, and increasing the temperature of the substrate or the component to the boiling point of methanol to vaporize methanol from the coating film or the printing film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a side surface of the film. Graphene (1) Glycol (2)