Patent ID: 6348266
Filing Date: 2002-02-19
Classification: G11B,Y10S,Y10T

Abstract:
A magnetic recording medium comprising:a non-magnetic substrate; an underlayer on the substrate; a magnetic layer on the underlayer; and a lubricant topcoat on the magnetic layer, wherein the lubricant topcoat comprises a lubricant having a molecular weight distribution of about 1 and having the formula: â€ƒwherein: A is alkyl, haloalkyl, alkoxy, or haloalkoxy; R1 and R2 are independently C1-10 fluoroalkyl, or C1-10 perfluoroalkyl; Z and Zâ€² are NH; x and y are between about 1 to about 10; and R3 is alkylene, halosubstituted alkylene or (Râ€”J)mâ€”Râ€²; wherein R and Râ€² are independently alkylene or halosubstituted alkylene, J is NH, O, S, Sâ€”S, SO2, C(O), or C(S) and m is 1-4.