C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5048, 400/79
C08L 71/02 (2006.01) C08F 283/06 (2006.01) C08F 299/02 (2006.01) C08G 65/00 (2006.01) C08G 65/32 (2006.01) C08J 3/09 (2006.01) G11B 5/71 (2006.01) G11B 5/725 (2006.01)
Patent
CA 1252243
PERFLUOROPOLYETHER COMPOSITIONS WHICH ARE SOLUBLE IN NON-FLUORINATED SOLVENTS ABSTRACT OF THE DISCLOSURE Polymeric compositions are provided in which per- fluoropolyethers have been solubilized in non-fluorinated solvents by combining them with a solubilizing agent such as azotic conjugated compounds, and phosphorylated compounds. Typical of the perfluoropolyethers is Image Typical of the solubilizing agents is phosphorylated methacryloyloxyhydroxypropylisophthalate. The perfluoropolyether and the solubilizing agent are mixed to form a paste which is soluble in organic solvents such as methylethylketone. These compositions find utility as protective lubricant coatings for thin film magnetic recording media. They have the advantage that only one coating step is required in order to apply both the phosphorylated compound and the lubricating polyether. Recording media lubricated with these compositions have demonstrated excellent wear characteristics.
463302
Burguette Mario D.
Foss George D.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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