prising applying a first coating composition by electrophoretic deposition to a substrate to make a coated substrate; subjecting the coated substrate to an amount of energy effective to cause the coated substrate to become a con- ductive coated substrate; apply- ing a second coating composition to the conductive coated substrate by electrophoretic deposition to make a mult icoated substrate; and subjecting the multicoated substrate to conditions sufficient to result in the cure of the second coating composition so as to make a cured mult icoated substrate , wherein the second coating com- position comprises an anodic elec- trocoat coating composition con- sisting of a polymer comprising a

backbone hav ing appended thereto at least one carbamate- functional group.

CLOSED-LOOP PHOSPHATIZING SYSTEM U.S. Patent 6,235,111. May 22, 2001 S.A. Comiso et al., assignors to EZ Environmental Solutions Corp., Menlo Park, Calif.

A system for phosphatizing an ob- ject comprising a floor assembly for suppor t ing an object and adapted to direct excess run-off fluids, which are flowed over the object towards a run-off portion of the floor assembly; a closed-loop phosphat izing assembly config- ured to pass a phosphatizing re- agent solution over the object dur- ing a phosphat iz ing procedure

and having a collection compart- ment in fluid communication with the run-off portion for receipt of substantially all the reagent run- off fluids from the floor assembly.

CONICAL SPUTTERING TARGET U.S. Patent 6,235,170. May 22, 2001 D.A. Glocker, assignor to David A. Glocker, Rush, N.Y.

A magnetron for sputtering a tar- get material onto a substrate hav- ing a radius to form a coating of the target material upon a surface of the subs t ra te comprising a frusto-conical ta rge t off-spaced from the substrate and having an inner surface for being sputtered.

ANODIZ ING VALVE METALS U.S. Patent 6,235,181. May 22, 2001

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June 2002 155

J.T. Kinard et al., assignors to Kemet Electronics Corp., Greenville, S.C.

A method of anodizing a metal comprising immersing a metal substrate into a glycerine-based electrolytic solution comprising glycer ine and 0.1 to 12% by weight of dibasic potassium phos-

phate and applying a constant current to produce a uniform ox- ide film.

PRETREATMENT OF ELECTRICALLY NON-CONDUCTIVE SURFACES U.S. Patent 6,235,182. May 22, 2001 M. Bele et all, assignors to Atotech Deutschland GmbH, Berlin, Germany

Circle 166 on reader card or go to www.thru.to/webconnect

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Method of coating electr ical ly non-conducive surfaces of an arti- cle with solid material particles comprising pretreatment with a solution, which contains a solvent and at least one polyelectrolytic compound wherein the solution includes at least one charged sur- factant of opposed polarity rela- tive to the polyelectrolytic com- pounds and wherein the charge of the polyelectrolytic compound is at least partially compensated for or overcompensated and coating the surfaces with the solid mate- rial particles by bringing the pre- t reated surfaces into contact with a dispersing containing the solid material particles, a second sur- factant stabilizing the dispersion against coagulation of the parti- cles and a salt destablizing the dispersion.

COATING A SUBSlrRATE WITH A METALLIC LAYER U.S. Patent 6,235,411. May 22, 2001 K.J. Blackwell et al., assignors to International Business Machines Corp., Armonk, N.Y.

A process for providing a metallic layer on a polyimide substrate, which comprises providing a sub- strate of a polyimide from diaryl dianhydride and a diamine; sput- ter coating a layer of chromium of 200 angstroms or less on said sub- s t ra te at a deposi t ion ra te of about 4 angstroms/second or less, and where in the t e m p e r a t u r e during the sputtering is about 5°C and resulting in improved adhe- sion, followed by coating a layer of copper on the layer of chromium.

WATERBORNE COATING U.S. Patent 6,238,470. May 29, 2001 T.L. Mayer and R. Krasnansky, assignors to Rohm and Haas Co., Philadelphia, Pa.

An aqueous coating composition with improved block resistance

156 Metal Finishing