/ Polyester/Polyimide Hybrid Films with Good Adhesion and Preparing Method Thereof

摘要

PURPOSE: A polyester/polyamide hybrid film is provided in which heat resistance, transparency and interfacial adhesive property are greatly improved by coating a mixture of a polyamide resin solution and a polyamic acid solution on an aromatic polyester film to a thin film, and a method for manufacturing the same is provided. CONSTITUTION: The polyester/polyamide hybrid film having superior adhesive property is characterized in that a mixed resin of soluble polyamide of the following Chemical Formula(II) and polyamic acid of the following Chemical Formula(III) is coated on one or both surfaces of an aromatic polyester film represented as in the following Chemical Formula(I) to a thin film. In the chemical formulae, m and n are integers greater than 1, X is -CH2- or -O-.