POLYESTER FILM AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a biaxially oriented polyester film having excellent gas barrier properties, especially excellent oxygen gas barrier properties.

SOLUTION: This biaxially oriented polyester film comprises a base layer B and the gas barrier layer D laminated on at least the one side of the base layer B. The base layer B contains poly(m-xyleneadipamide). The gas barrier layer D comprises a base material on which those layers are formed and a copolymer having a maleic acid unit and an acrylic acid unit.

COPYRIGHT: (C)2004,JPO&NCIPI