OPTICAL ADHESIVE POLYESTER FILM

摘要

An optical adhesive polyester film is provided to improve adhesive strength, transparency and light resistance and to reduce the generation of surface defect due to impurities. An optical adhesive polyester film comprises a polyester film which contains a UV ray absorber; and an adhesive layer which is formed on the polyester film, wherein the film has a melting sub-peak temperature(Tsm) of 180-220 deg.C. Preferably the UV ray absorber is selected from a cyclic iminoester represented by the formula I or II, wherein X1 is a divalent aromatic residue; n is 1, 2 or 3; R1 is an n-valent hydrocarbon residue capable of containing a hetero atom; R2 and R3 are identical or different each other and are an l-valent hydrocarbon residue; and X2 is a tetravalent aromatic residue capable of containing a hetero atom.