copper powder containing silver plating in the amount of not more than 30%; 13.6-6.0 parts by weight of phenolic resin (solid content); 0.2-0.7 part by weight of one selected from saturated fatty acids, unsat- urated fatty acids, metallic salts thereof, and coupling agents containing saturated fatty acids or unsaturated fatty acids; l.O- 4.0 parts by weight of triethanolamine; and 0.1-1.0 part by weight of dihydroxyben- zene.

Apparatus for Applying Powder Coatings U.S. Patent 5,567,468. Oct. 22, f996 J.M. Lucas, assignor to Schonbek Worldwide Lighting Inc., Plattsburgh, N. Y.

A method for powder coating a surface of an object comprising applying a stream of electrostatic charged powder coat parti- cles to the surface of the object; providing an ionized gas flow of opposite charge relative to the charge on the powder coat particles to the surface of the object so that the gas flow neutralizes and transports at least some of the particles from the surface, leaving a substantially-uniform layer of powder coat particles; and curing the pow-

der coat particles to form a finished powder coat surface.

Method of Protecting Steel Strip U.S. Patent 5567,482. Oct. 22, 1996 E. /lgaf et a/., assignors to Rouge Steel Co., Dearborn, Mich.

A method of protecting steel strip in a high-speed electrogalvanizing process from generation of zinc edge nodules com- prising providing a steel strip, applying as an edge band to said steel strip, while it is moving at a rate of at least 100 feet per min, a liquid ultraviolet-curable coating, and curing said coating with ultraviolet radiation.

Paint Drying Oven U.S. Patent 5,568,692. Oct. 29, 1996 D. W. Crompton et a/., assignors to Dun industries Inc., Plymouth, Mich.

A method of drying paint on a vehicle comprising providing a floor of a radiant oven with a heating passage and commu- nicating the heating passage to a source of heated gas; transporting a vehicle having wet paint thereon along the longitudinal

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direction through the heating chamber; and sending heated gas into the heating pas- sage, and heating the oven floor and gen- erating radiant energy to dry the wet paint.

Treatment System for an Outdoor Paint Booth U.S. Patent 5569,073. Oct. 29, 1996 G.F: Cooper, assignor to The United States of America as represented by the Secretary of the Navy, Washington, DC.

A system for the treatment of contami- nated air from an outdoor spray booth, comprising a cylindrical-shaped after-bum- ing incinerator.

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Finishing Systems Design and Implementation edited lyJ.L. Stauff%r 351 pages $68.00

This book addresses the subject of paint finishing from a broad perspective for both the finishing engineer and manager. Subjects covered include the impact of product design on the finishing system, coating selection, conveyors, finishing process- es, equipment design, and quality.

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174 METAL FINISHING l JUNE 1997