Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic oxygen compound
Reexamination Certificate
2010-10-20
2011-12-27
Griffin, Walter D (Department: 1771)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic oxygen compound
C502S522000, C502S522000
Reexamination Certificate
active
08084405
ABSTRACT:
A composition is disclosed which comprises an aryl perfluoropolyether, optionally a halogenated oil, and further optionally a thickening agent. The composition can be used as a lubricant itself or as an additive to an oil or grease lubricant and can withstand temperatures higher than 300° C. without decomposition. The halogenated oil can be a perfluoropolyether, a fluorosilicone, a polytrifluorochloroethylene, or combinations of two or more thereof. The thickening agent can be finely divided silica, boron nitride, clay, soap, poly(tetrafluoroethylene), clay, talc, silica, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof.
REFERENCES:
patent: 227103 (1993-07-01), None
Howell Jon Lee
Laugesen Krista Lynn
Perez Erik William
Van Der Ende Alice Elizabeth
E. I. du Pont de Nemours and Company
Griffin Walter D
Oladapo Taiwo
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