Patent ID: 6913820

Claim:
A polarizing plate protective base film comprising a laminated film comprising a biaxially oriented polyester film and a coating layer provided on one side of said biaxially oriented polyester film, the coating layer comprises a cationic copolymer comprising cationic monomeric units, hydrophobic monomeric units and organopolysiloxane units, the surface electrical resistance of said coating layer being not more than 1×10 11 Ω, the adhesive force (P2) of the coating layer surface with an acrylic adhesive being not more than 3,000 mN/cm, and the difference between adhesive force (P1) of the coating layer surface with a rubber adhesive and adhesive force (P2) with an acrylic adhesive (P1−P2) being not less than 100 mN/cm.