Patent · US Active

Composition comprising perfluoropolyether

US8044006B2 · kind B2 · utility

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22Claims

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Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Jon Lee Howell · Bear, US
Alice E. Van Der Ende · Hartsville, US
Erik William Perez · Middletown, US
Krista Lynn Laugesen · Schreiber, CA

Key dates

Filing date	Oct 20, 2010
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Oct 20, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2010/08
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.