Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Graphite – coal – or elemental carbon
Reexamination Certificate
2006-03-07
2008-11-11
Caldarola, Glenn (Department: 1797)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Graphite, coal, or elemental carbon
C977S742000, C977S745000
Reexamination Certificate
active
07449432
ABSTRACT:
The present invention relates to a novel use of nanomaterials as a viscosity modifier and thermal conductivity improver for gear oil and other lubricating oil compositions. The gear oils of the instant invention have a higher viscosity index, higher shear stability, and improved thermal conductivity compared to currently available gear oils. The preferred nanoparticles also impart a reduction in the coefficient of friction, including reduced friction in the boundary lubrication regime. These properties are obtained by replacing part or all of the polymer thickener or viscosity index improver or some other part of the composition normally used in gear oils with nanomaterials of suitable shape, size, and composition.
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Lockwood Frances E.
Smith Thomas R.
Wu Gefei
Zhang Zhiqiang
Ashland Licensing and Intellectual Property, LLC (ALIP)
Caldarola Glenn
Carrithers David W.
Carrithers Law Office PLLC
Goloboy Jim
LandOfFree
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