Flexible magnetic recording media having superior peel strength

Details Flexible magnetic recording media having superior peel strength Flexible magnetic recording media having superior peel strength

G - Physics

11

B

18/100, 117/24.2

G11B 5/702 (2006.01) G11B 5/73 (2006.01)

Patent

CA 1308610

ABSTRACT OF THE DISCLOSURE: A flexible magnetic recording media having superior peel strength is disclosed. The magnetic recording media comprises a primer coated polyester film which has been overcoated with a coating comprising ferromagnetic particles dispersed in a polymeric binder. The primer coating is preferably sodium oleate which has been in-line coated onto polyethylene terephthalate film. The ferromagnetic particles are preferably chromium dioxide particles. The polymeric binder is preferably a polyurethane reaction product of (A) a hydrolytically stable difunctional alcohol, (B) a chain extender, and (C) an aromatic diisocyanate.

562225

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