Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Solid hydrocarbon polymer
Reexamination Certificate
2005-09-01
2010-11-23
Caldarola, Glenn A (Department: 1797)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Solid hydrocarbon polymer
C508S406000, C508S549000, C508S551000, C508S553000, C508S562000, C508S563000, C508S580000, C508S582000, C508S583000, C508S584000, C508S586000, C508S587000
Reexamination Certificate
active
07838475
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.
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Howell Jon Lee
Laugesen Krista Lynn
Perez Erik William
Van Der Ende Alice Elizabeth
Caldarola Glenn A
E.I. du Pont de Nemours and Company
Oladapo Taiwo
Sanchez Kathryn M.
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