Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic -co- compound
Reexamination Certificate
2005-07-12
2005-07-12
Howard, Jacqueline V. (Department: 1764)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic -co- compound
Reexamination Certificate
active
06916768
ABSTRACT:
The present invention relates to grease gelling agents and greases having low noise characteristics. The greases of the present invention may also exhibit good low shear stability and good heat resistance, as well as the low noise characteristics. The novel grease compositions of the present invention comprise a grease gelling agent comprises a mixture of ≧80 weight percent diureas and 0.1-20 weight percent polyureas.
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Littlefield Carlos E.
Ward Carl E.
Chevron U.S.A. Inc.
Howard Jacqueline V.
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