Lubricant oils and greases containing nanoparticles

Details Lubricant oils and greases containing nanoparticles Lubricant oils and greases containing nanoparticles

2005-07-29

2008-09-02

Manahan, Todd E. (Department: 3731)

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Heterocyclic ring compound; a heterocyclic ring is one...

C508S154000, C508S460000, C508S336000, C977S773000, C977S775000

Reexamination Certificate

active

07419941

ABSTRACT:
Lubricant oil compositions containing a base oil and an additive package comprising one or more wear-resistant additives. The wear-resistant additives can be (a) a Group 1a alkali metal carbonate, a Group 2a alkaline earth metal carbonate, or a mixture thereof; (b) Group 1a alkali metal sulfate, a Group 2a alkaline earth metal sulfate, or a mixture thereof; (c) a Group 1a alkali metal phosphate, a Group 2a alkaline earth metal phosphate, or a mixture thereof; (d) Group 1a alkali metal carboxylate, a Group 2a alkaline earth metal carboxylate; or (e) a combination of (a), (b), (c), and (d). The wear-resistant additives are in the form of nanoparticles.

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