Method for providing a lubricant coating on the surface of a magneto-optical disk and resulting optical disk
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United States of America Patent
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May 12, 1992
Grant Date -
N/A
app pub date -
Oct 7, 1991
filing date -
Oct 7, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for providing a lubricant coating on the surface of a magneto-optical disk is disclosed. The method includes forming a lubricant solution by dissolving a functionalized fluorinated lubricant compound in a solvent, the compound containing at least one fluorinated alkyl chain, and a functional group selected from an alcohol group (OH), carboxyl group (COOH) and phosphate group (PO.sub.4). The lubricant compound has a melting point above the ambient operating temperature of said magneto-optical disk and below about 85.degree. C. and a viscosity in the range of about one hundred to about one thousand centipoises in the temperature range of about 60.degree. to about 85.degree. C. The surface of the magneto-optical disk is coated with the lubricant solution, and the solvent is evaporated to produce a lubricant coating on the surface of a magneto-optical disk.
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