Laminated Polyester Film and Laminated Film

April 4, 2006

Patented is a laminated polyester film comprising a polyester base film stretched to at least one direction and a coating layer provided on at least one surface of the polyester base film. The coating layer contains polymer binder and inert particles wherein the difference in refractive index of the inert particles and the polymer binder is 0.04 or less. The laminated polyester film has a haze of 1.5% or less, a total light transmittance of 85% or more, a 50% destructing energy per 100 mm film thickness of 0.3 J or more and a thermal shrinkage ratio at 230°C for 30 minutes of 4% or less.

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