The invention provides an antistatic
coating composition for reducing
coating defects, wherein the composition comprises, by weight, 100 parts of
conductive polymer resin, 100-1000 parts of water dispersive
polyurethane resin composed of anionic
polyether polyurethane dispersion which contains at least one functional group selected from the following group of hydroxyl, amine,
alkyl and carboxyl, 100-1000 parts of any cross-linking agent resin selected from the following group of isocynate, carbonyl
imide,
oxazoline and
melamine compound, and 10-100 parts of fluororesin. The composition also comprises 0.001-1 parts of
acetylenediol surfactant on the basis of 100 parts of all the said component resin. In addition, the invention provides an antistatic
polyester film, which is prepared by
coating the antistatic coating composition on one side or two sides of a
polyester film during the in-line coating process. The antistatic
polyester film is excellent in the tape
peel force, the anti-scaling property and the
solvent resistance and the
physical property of the antistatic polyester film do not become worse significantly due to the property of the surfactant.