▎ 摘　　要

NOVELTY - Producing coating composition using carbon material, comprises (1) preparing first mixture by mixing carbon nanotubes, graphene and dispersant in solvent, (2) performing sonication of the first mixture, and (3) preparing the second mixture by mixing first mixture with binder and polymer compound (I). USE - The composition is useful in heat dissipation sheet (claimed) for device. ADVANTAGE - The composition has excellent transparency and excellent physical properties, so that it is not damaged by external impact, and excellent shelf life, and provides heat dissipation sheet having improved thermal conductivity by uniformly dispersed carbon nanotubes and graphene. DETAILED DESCRIPTION - Producing coating composition using carbon material, comprising (1) preparing first mixture by mixing carbon nanotubes, graphene and dispersant in solvent, (2) performing sonication of the first mixture, and (3) preparing the second mixture by mixing first mixture with binder and polymer compound of formula (I). n=8-20; and m=5-15. INDEPENDENT CLAIMS are also included for: (1) coating composition produced by the above mentioned method; and (2) heat dissipation sheet comprising a substrate and a carbon nanotube composite layer, where the carbon nanotube composite layer is formed by applying coating composition.