Solid lubricant with high and positive friction characteristic
AssigneeCentury Oils (Canada), Inc.
InventorsKelvin S. Chiddick, Joseph Kalousek
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Abstract
This invention pertains to a novel lubricant composition which possess high and positive friction characteristics. A high, positive friction lubricant composition comprising: (a) at least 20% by weight of a polymer media; (b) at least 5% by weight of a solid lubricant; and (c) at least 5% by weight of a powderized solid mineral friction modifier.
Claims27
A solid lubricant composition comprising:
- (a) at least 20 percent by weight of a polymer medium;
- (b) at least 5 percent by weight of a solid lubricant;
- and
- (c) at least 5 percent by weight of a friction modifier wherein the coefficient of friction between steel bodies in rolling-sliding contact lubricated using the composition is greater than 0.10 and increases with an increase in the relative speed of sliding movement between said bodies.
A high positive friction solid lubricant composition comprising:
- (a) about 40% by weight of a polyester resin medium;
- (b) about 30%.+-.2.5% by weight of molybdenum disulfide solid lubricant;
- and
- (c) about 30%.+-.2.5% by weight of powderized talc (magnesium silicate) such that the coefficient of friction produced by the solid lubricant composition, between steel bodies in rolling-sliding contact lubricated using the composition, is greater that 0.15 and increases with an increase in the relative speed of sliding, between said bodies.
A high and positive friction solid lubricant composition comprising:
- (a) about 70% by weight of a polyester resin medium;
- (b) about 14% .+-.2.5% by weight of molybdenum disulfide solid lubricant;
- and
- (c) about 14%.+-.2.5% by weight of powderized talc (magnesium silicate) such that the coefficient of friction, produced by the said composition between steel bodies in rolling-sliding contact lubricated using the composition, ranges from about 0.17 to about 0.32 as the relative speed of sliding between said bodies increases from about 2.5% to about 30%.
A composition for use in the lubrication of steel bodies in rolling-sliding contact, the composition being solid and producing a coefficient of friction between the bodies greater than 0.10 which coefficient of friction increases with increase in relative sliding movement between the bodies.
A solid lubricant composition comprising a solid lubricant and a friction modifier, present in sufficient proportions so that the coefficient of friction produced between steel bodies in rolling-sliding motion lubricated using the composition is greater than 0.10 and wherein said coefficient of friction increases with an increase in the relative speed of sliding movement between the bodies.
Dependencies are inferred from the claim text.