Patent ID: 7682712
Filing Date: 2010-03-23
Classification: C10M,C10N

Abstract:
1. A data/information storage and retrieval medium, comprising: (a) a substrate having a layer stack thereon, said layer stack including an outer surface and comprising at least one magnetic or magneto-optical (“MO”) recording layer; and (b) a thin film or layer of a lubricant on said outer surface of said layer stack and comprised of a derivatized perfluoropolyether-based material including at least one generally linear perfluoropolyether chain and at least one organophosphite moiety attached to at least one end of at least one said chain via a chemical bond between a reactive group at said at least one end of said chain and the phosphorus atom of said organophosphite moiety, wherein said at least one organophosphite moiety is derived from an organophosphite compound selected from the group consisting of tris (2,4 di-butylphenoxy)phosphite, tris (mono-fluorophenoxy)phosphite, and tris (mono-trifluoromethylphenoxy)phosphite.