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E.i. Dupont De Nemours and Company

H Carl Walther

Jon Lee Howell

Gregory Alan Bell

Thomas Michael Band

A method of lubricating a sootblower comprising use of an oil or grease that is thermally stable at temperatures of at least 160&#xb0; C. Sootblower components which can be lubricated include lance support bearings, gears, chains, seals, and shaft bearings. The oil or grease can be an ester, silicone, or halogenated oil or grease including perfluoropolyether or perfluoroalkyl ether, a fluorosilicone, a polytrifluorochloroethylene, derivatized perfluoropolyethers, such as fluoroether triazines, and mixtures of two or more thereof.

Method for lubricating a sootblower

A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.

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Landenberg, PA, United States of America

H Carl Walther