PATENTS GRANTED In the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademark Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 2023 1

Multicoat Finish U.S. fatent5,368,944. Nov. 29, 1994 M. Hartung et al., assignors to BASF Lacke t Farben AG, Murtster, Germany

An article comprising a structure having a coating thereon wherein said coating is a multilayer coating including at least one base coat layer, ahd at least one clear coat layer applied over the base coat layer, wherein the base coat is derived from an aqueous pigmented paint comprising a water-thinnable polyurethane resin.

Process for Refining of Copper Scrap U.S. Patent5,372,684. Dec. 13, 1994 G. Zoppi, assignor to Eccchem AG, Triesen, Lie& tenstein

A process for direct refining of copper scrap, comprising leaching using an acidic solution of ferric fluoroborate in fluorob- oric acid, with copper in the scrap thereby being dissolved; filtering the resulting solution; feeding the filtered solution to a diaphragm-type electrolytic cell having an anode and a cathode, in which copper is deposited from the filtered solution in pure form at the cathode and ferrous ions are oxidized to ferric ions at the anode, with the solution of ferric fluoroborate being thus regenerated; and recycling the so regener- ated ferric fluoroborate solution in order to leach further amounts of copper scrap.

Process for Coating a Substrate With Metallic Layer U.S. Patent 5,372,685. Dec. 13, 1994 M. Anschei, assignor to International Business Machines Corp., Armonk, N.K

A process for providing a metallic layer on a dielectric substrate, which consists of a polyimide, sputter coating a layer of chromium, followed by sputter coating a layer of copper wherein the temperature of the substrate is at least 32O’C wherein the chromium contacts the dielectric substrate.

Vacuum Coating Apparatus U.S. Patenr5,372,693. Dec. 13, 1994 G. Bruer et a/., assigws to Leybo/d AG, Hanau, Ger~ny

A vacuum coating apparatus for coating an area of a substrate, comprising a tank

having an opening that can be placed against a substrate; a means for sealing against the substrate; a target-bearing sput- tering cathode; and a shut-off wall, which can be moved between the coating source and the opening to divide the tank into a source chamber and a substrate chamber.

Process and Apparatus for Electroplating U.S. Patent5,372,701. Dec. 13, 1994 L.J. Gerdon, Deer Park, N. Y. and JR. IrIb&, Brenhvood, N. Y

An improved process for electroplating a metal or alloy onto an object, including immersing the object to be plated in an electrolytic plating solution, passing an electric current through the electroplating solution to effect plated deposition of the metal or alloy onto the object to obtain a plated object, removing the plated object from the electrolytic plating solution, and immersing into a post-electroplating rinse solution.

Precipitating Agent U.S. Patent5,372,726. Dec. 13, 1994 G. Straten, Aachen, Germany

A compound for the treatment of water polluted by metal ions, obtained by reacting potassium or sodium hydroxide in an aqueous solution with thiocarbamide and potassium or sodium hyposulfite, such that a precipitate is formed in a liquid in a vessel containing the reactants; permitting the precipitate to settle in the vessel; and separating the liquid from the precipitate thus formed wherein the separated liquid is the compound for treatment of water.

Treatment to Improve Autodeposited Coatings U.S. Patent 5,372,653. Dec. 13, 1994 O.E. Roberto, assignor to Henkel Corp., Plymouth Meeting, Mass.

A process of retaining or enhancing the corrosion resistance of a cured autodepos- ited coating on a metallic surface, compris- ing contacting an uncured autodeposited poly(vinylidene chloride) polymer or co- polymer coating present on a metallic surface with an aqueous rinse containing from 0.05-20.0% by weight of hy- drofluorozirconic acid or a salt thereof.

Coating System Using Varying Speed U.S. Patent 5,372,856. Dec. 13, 1994 7: Ogasawara, assignor to Mazda Motor Corp., Hiroshima, Japan

A coating method for coating a member being conveyed with a coating gun ar- ranged so as to reciprocate in a Fist direction different from a direction of conveyance of the member to be coated, comprising coating by altering a reciprocat- ing stroke of the coating gun in accordance with a length of the member extending in the first direction.

Thermosetting Coating Composition and Coated Article U.S. Patent 5,374,662. Dec. 20, 1994 Y Gouda and H. Ooguri, assignors to Nippon Painf

A thennosetting coating composition consisting essentially of an acrylic resin having hydroxyl groups and epoxy groups in a molecule thereof; a resin prepared from a monomer having an unsaturated group and an acid anhydride group, the acid anhydride group being half-esterified, half- thioesterified, and/or half-amidized; a hy- droxyl group-containing resin selected from the group consisting of an acrylic resin containing hydroxyl groups and car- boxy1 groups, a fluorine and hydroxyl group-containing copolymer resin, a hy- droxyl group-containing polyester resin and a mixture thereof; and a melamine resin.

Selective Plating Method U.S. Patent 5,374,345. Dec. 20, 1994 H. Owada, assignor to Mitsubishi Nuclear Fuel Co., Two

A method for partially electroplating an electroconductive plate member having portions not to be plated, comprising preparing a masking jig having at least one tubular body in which a pair of opposing slits terminating at an end of the tubular body are formed and directed in an axial direction of the tubular body; inserting the plate member in a releasable manner into the slits of the tubular bodies so that each portion of the plate member not to be plated is arranged within each of the tubular bodies and the portion of the plate member to be plated is arranged outside each of the tubular bodies; soaking the plate member together with the masking jig in an electro-

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