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Barrier Film



Patent #: 7,288,311

Inventor(s): Sayaka Kawashima, Minoru Komada and Shinya Satou

Company: Dai Nippon Printing Co., Ltd

Filed: 2004-02-09

Issued: 2007-10-30

Description:
Patented is a barrier film comprising a base material film and a barrier layer on at least one side surface of the base material film. The barrier layer comprises a water repellent layer and a dense layer. The water repellent layer is a silicon oxide carbide film with the atomic percent of Si:O:C in a range of 100:40 to 120:80 to 160, and a 2 to 300 nm thickness. The dense layer is a silicon oxide carbide film with the atomic percent of Si:O:C in a range of 100:100 to 200:5 to 100, and a 5-300 nm thickness. The base material is a resin film having a 5-500 Ìm thickness. The barrier layer has a laminated structure with the dense layer sandwiched between two water repellent layers.

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