Biaxially-oriented polyester film

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/36 (2006.01) B29C 55/12 (2006.01) B29C 55/14 (2006.01) C09D 167/02 (2006.01) G11B 5/73 (2006.01) G11B 5/733 (2006.01)

Patent

CA 2283349

A biaxially-oriented polyester film includes at least two layers and at least one outermost layer is composed of a polyester having a rigid amorphous content of about 10 to 55%. The biaxially-oriented polyester film has a longitudinal Young's modulus of at least about 4.5 GPa. The biaxially-oriented polyester film is suitable for high- density magnetic recording media, such as digital video tapes and high-density data recording tapes.

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