Patent ID: 7659006

Claim:
A laminated polyester film comprising: (A) a polyester film; and (B) a 0.04 to 0.5 microns thick coating layer formed on at least one side of the polyester film (A) and made of a coating composition comprising 5 to 95 wt % polyester resin having a glass transition point of 60 to 80° C., 5 to 95 wt % of an acrylic resin having an oxazoline group and a polyalkylene oxide chain and inorganic-organic composite particles having an average particle diameter of 300 to 1500 nm and containing 10 to 40 wt % of elemental silicon and wherein the composite particles are present in an amount of 0.01 to 5 parts by weight based on 100 parts by weight of the coating composition of the coating layer.