Biaxially oriented, laminated polyester film

Details Biaxially oriented, laminated polyester film Biaxially oriented, laminated polyester film

B - Operations, Transporting

32

B

B32B 27/36 (2006.01) G11B 5/733 (2006.01) G11B 5/738 (2006.01)

Patent

CA 2131106

ABSTRACT OF THE DISCLOSURE Disclosed is a biaxially oriented, laminated polyester film having a lamination structure with at least two layers. At least one of the outermost layers of the film is a thin laminated layer A having a thickness of not more than 3 µ m. In the layer A, internally formed particles and specified agglomerated particles or mono-dispersed particles are present, or the mono-dispersed particles are present at a very small content. When the polyester film is used as a base film for magnetic recording media, the abrasion resistance of the film surface at a high speed can be greatly increased.

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