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US 6,828,282 B2Granted
Lubricants containing carbon nanotubes
AssigneeHyperion Catalysis International, Inc.
InventorsDavid Moy, Chunming Niu, Howard Tennent, Robert Hoch
Life of this patent
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Abstract
Improved fuel compositions containing carbon nanotubes in from 0.01% to 30.0% by weight of fuel have improved burn rate and other valuable properties. Improved lubricant compositions containing carbon nanotubes in from 0.01 to 20.0% by weight of lubricant have improved viscosity and other valuable properties.
Claims5
A lubricant composition having improved lubricant properties, containing:
- (a) a lubricant having a molecular weight of from 250 to 1,000;
- and
- (b) from 0.1% to 10.0% by weight of said lubricant of carbon nanotubes dispersed therein, said nanotubes having a diameter less than 0.5 μ and a length to diameter ratio greater than 5.
A method of producing an improved lubricant containing carbon nanotubes comprising the steps of:
- (a) forming a mixture of a polymeric matrix and carbon nanotubes, said mixture containing from 1 to 30% by weight of carbon nanotubes;
- and
- (b) combining the mixture formed in step (a) with a lubricant having a molecular weight of from about 250 to about 1000 in such amount as to form a lubricant containing from 0.01% to 20% by weight of carbon nanotubes in said lubricant.
A lubricant composition having improved lubricant properties, consisting essentially of:
- (a) a lubricant having a molecular weight of from 250 to 1,000;
- and
- (b) from 0.1% to 10.0% by weight of said lubricant of carbon nanotubes dispersed therein, said nanotubes having a diameter less than 0.5 μ and a length to diameter ratio greater than 5.
Dependencies are inferred from the claim text.