摘要:
A recording medium comprising a substrate, a memory layer supported by the substrate, and a liquid crystal lubricant overlying the recording medium. The recording medium preferably has a wear layer over the memory layer. The liquid crystal lubricant comprises a cholesteric liquid crystal and cholestryl oleyl carbonate is particularly preferred. The lubricant may be applied to the recording medium by dipping in a dilute solution containing a volatile solvent and then evaporating the solvent, leaving a thin lubricant film over the wear layer.
摘要:
An offgas containing an organic compound is scrubbed by providing a spray of a scrubbing fluid containing a water-soluble organic surfactant, an organic cosurfactant comprising an alkanediol and water. The spray is mixed with an offgas containing a volatile organic compound, thereby forming an oil-in-water microemulsion and reducing content of the organic compound in the offgas. The process and apparatus of the invention are especially suitable for scrubbing offgas generated by aluminum rolling mills.
摘要:
A metalworking lubricant comprising about 1-20 wt % natural or synthetic oil; about 0.5-30 wt % of a water-soluble surfactant, preferably a nonionic surfactant; about 1-20 wt % of an organic cosurfactant, preferably 1,2-octanediol; and about 50-97.5 wt % water containing less than about 1 wt % dissolved inorganic salts. The lubricant is preferably a lyotropic liquid crystal.
摘要:
An aluminum alloy preform having an outer surface portion prelubricated with a film of a water-microemulsifiable lubricant composition comprising an oil, an anionic surfactant, a non-ionic cosurfactant, and optionally a C.sub.10 -C.sub.36 mono- or dicarboxlyic acid. The lubricant composition is dissolved in an organic solvent (preferably hexane) and applied to the preform. The solvent evaporates, leaving a water-microemulsifiable lubricant film. The lubricated product is readily washable with water to microemulsify the lubricant film into a microemulsion.
摘要:
A metalworking lubricant comprising an oil-in-water microemulsion and containing about 1-30 wt % natural or synthetic oil; about 0.5-30 wt % of a water-soluble surfactant, preferably a nonionic surfactant; about 1-20 wt % of an organic consurfactant, preferably 1,2-octanediol; and about 45-97.5 wt % water containing less than about 1 wt % dissolved inorganic salts. The lubricant is suitable for various metalworking methods, including hot rolling and cold rolling of aluminum and aluminum alloys.
摘要:
Aluminum alloy finstock for making heat exchanger fins. The finstock is prelubricated with a water-microemulsifiable lubricant composition comprising an oil, an anionic surfactant, a polyalkoxy alkylphenol cosurfactant, and optionally a C.sub.10 -C.sub.36 mono- or dicarboxylic acid. The lubricant composition is preferably applied to the finstock dissolved in hexane which is then evaporated, leaving a water-microemulsifiable lubricant residue. The lubricated product is readily washable with water to microemulsify the lubricant residue into a microemulsion.