Lubricant compositions
OwnerNorman Laurie Jacobsinventor
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Abstract
Lubricant composition containing spherical particles of a ceramic material dispersed in a supporting vehicle. The composition is used as a lubricant, metalworking cooling fluid, drilling fluid or drilling mud.
Claims20
A lubricant composition comprising at least 0.1% by weight of substantially spherical particles of a hard, abrasion-resistant and fracture resistant, thermally stable and chemically inert material wherein the particles are silica-based ceramic particles and have a Mohs hardness of at least 5.5, a softening point of at least 750.degree. C. and an average size of less than about 250 .mu.m and are not distorted under a pressure of 700 kg/cm.sup.2 (10000 psi), dispersed in a supporting lubricant vehicle selected from the group consisting of organic-based, silicone based or water-based vehicles.
Dependencies are inferred from the claim text.