Importance

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Abstract

Provided is a multilayered film having excellent reliability and adhesive strength under a heat/water resistance condition, and excellent weather resistance and durability by forming a primer layer including a fluoropolymer and an oxazoline group-containing polymer on a base and forming a resin layer including a fluoropolymer on the primer layer. In addition, the multilayered film uses a low boiling point solvent, and thus is manufactured at a low drying temperature and with a low cost, resulting in reducing production costs and preventing degradation of quality of a product from thermal deformation or thermal impact. Such a multilayered film may be effectively used in a backsheet for a photovoltaic module to provide a photovoltaic module capable of maintaining excellent durability even in long-term exposure to an external environment.

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First Claim