Mitsubishi Plastics, Inc.

Mitsubishi Chemical Corporation

Katsuya Amako

Masato Fujita

Taishi Kawasaki

Ryosuke Funatsu

Yuka Kato

The present invention provides a polyester film that can be suitably used in the applications requiring excellent transparency and slipping property, for example, such as a film member for a transparent electrode used in touch panels, etc., and a member for molding films. The present invention relates to a polyester film comprising non-heat-resistant particles supported thereon, in which after supporting the non-heat-resistant particles on at least one surface of an unstretched polyester film, the unstretched polyester film is stretched in at least one direction thereof, and a process for producing a polyester film comprising the steps of blowing non-heat-resistant particles onto at least one surface of an unstretched polyester film to support the non-heat-resistant particles thereon, or applying a coating solution comprising the non-heat-resistant particles onto at least one surface of the unstretched polyester film to support the non-heat-resistant particles thereon; and then stretching the unstretched polyester film in at least one direction thereof.

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Maibara, Japan

Katsuya Amako