▎ 摘　　要

NOVELTY - Heat-dissipating coating composition comprises carbon nanotubes, epoxy resin, and dispersibility improving copolymer. The dispersibility improving copolymer contains structural unit derived from alkene-based monomer (I). structural unit having hydrophilic group, structural unit derived from adamantane-based monomer (III), and structural unit derived from ketone-based monomer (IV). USE - The composition is useful for producing LED lighting luminaire (claimed). ADVANTAGE - The composition improves dispersibility of carbon nanotubes to prevent partial breakage of the heat conduction network of the carbon nanotubes in the coating film, so that remarkably increasing the thermal conductivity; has improved storage stability by maintaining dispersed phase of the carbon nanotubes for a long time; and improves compatibility between the carbon nanotube and epoxy resin, so that increasing the interfacial stability of epoxy resin and carbon nanotube to prevent cracking of the coating film and have uniform coating film adhesion. DETAILED DESCRIPTION - Heat-dissipating coating composition comprises carbon nanotubes, epoxy resin, and dispersibility improving copolymer. The dispersibility improving copolymer contains structural unit derived from alkene-based monomer of formula (I). structural unit having hydrophilic group, structural unit derived from adamantane-based monomer of formula (III), and structural unit derived from ketone-based monomer of formula (IV). R'=pyrene-based moiety of formula (II); n=2-10; R1=H or 1-5C aliphatic hydrocarbon group; Y1=1-17C aliphatic hydrocarbon group, where -CH - part of the aliphatic hydrocarbon group can be substituted with -CO-, -O- or -S-; R2=hydroxy or 1-4C hydroxyalkyl; m=2-4; and R3=H, 1-20C aliphatic hydrocarbon group, where -CH - part of the aliphatic hydrocarbon group can be substituted with -O-.