EQUIPMENT FOR POWDER SPRAY COATING U.S. Patent 6,194,027. Feb. 27, 2001 F. Mauchle, assignor to ITW Gema AG, Schweiz, Switzerland

A method of powder spray coating objects comprising pneumatically conveying a powder from a con- tainer through an injector and a powder line to a spraying system, using a conveying-air flow moving through the injector and generat- ing a vacuum in a vacuum zone of the injector, thereby sucking pow- der out of the container and con- veying the powder through the powder line to the spraying sys- tem.

SELECTIVE SUUSTRATE METALLIZATION U.S. Patent 6,194,032. Feb. 27, 2001 L.M.Svedberg et al., assignors to

Massachusetts Institute of Technology, Cambridge, Mass.

A process for selective electroless plating of a metal onto a substrate comprising providing a substrate having a surface, which is eata- lytic to electroless plating; apply- ing an electroless gel plating com- position to selected areas of the substrate in a selected pattern, said gel plating composition con- taining a carrier vehicle; an elec- troless platable metal compound; a reducing agent; and a thicken- ing agent; and inducing plating of the metal of the electroless plat- able compound on the substrate surface at the selected pattern.

COPPER FOIL U.S. Patent 6,194,056. Feb. 27, 2001 H. Sakai et al., assignors to Mitsui

Mining & Smelting Co. Ltd., Tokyo A high-tensile strength electrode- posited copper foil.

PICKLING SOLUTION FOR ALUMINUM-STEEL COMPOSITES U.S. Patent 6,194,369. Feb. 27, 2001 J. Eberhardt et al., assignors to Th. Goldschmidt AG, Essen, Germany

A pickling/activation solution for the pretreatment of aluminum- steel composites prior to dip tin- ning, said solution comprising sulfuric acid, hexafluorosilicic acid, at least one wetting agent, at least one transition metal cation, and nitrate and/or nitrite ions.

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December 2001 65