Granted in the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademarks Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 20231
aqueous bath for electroplating nickel-iron alloy comprising 260 to 280 g/L of nickel chloride; 10 to 15 g/L of ferrous ammonium sulfate; 0.8 to 1.9 glL of acid saccharin; and 0.4 to 1.9 g/L of naphthalene trisulfonic acid.
prising a dispersion of a polymer in a medium comprising a nonpolar hydrocarbon and an alkyd resin, wherein the polymer is produced by a free-radical addition polymerization reaction of a group of monomers comprising at least one polar monomer and at one amine-functional least monomer, which takes place in the presence of the alkyd resin.
METHOD
CONVEVING
NICKEL-IRON
ALLOY
ELECTROPLATING
BATH
l%S. Patent 6,344,128. Feb. 52002 E. Toledo et al., Newton, Mass. An
US. Patent T Jiang Micron
6,346,151.
Technology
SYSTEM
CONDUCTORS
US. Patent
l%S. Patent 6,344,129. Feb. 5,2002 K. I? Rodbell et al., assignors to
K. W Lachman
International
Business
Corp., Armonk,
Machines
N.Y
A method for plating copper conductors on an electronic substrate comprising providing a copper electroplating solution; adding an additive to a concentration of not more than 5 ml/L; maintaining at a temperature not higher than 18°C; and electroplating. SOL-GEL CATALYST FOR ELECTROLESS
US. Patent
PLATING
6,344,242.
Feb. 5,2002
R. D. Stolk and M. R. Rahe, assignors to McDonnell
Douglas
Corp., St.
Louis
A composition for forming a solgel catalyst for electroless plating comprising a metal alkoxide mixed with a polar organic solvent; an acid in an amount 1 to 30% by weight; a chloride salt or an acid chloride; and a catalytic metallic salt. AUTOMOTlVE
COATING
US. Patent 6,344,502. Feb. 5,2002
Eisenmann
6,345,635.
ELECTROLYTE FOR ANODIZING VALVE METALS
et al., assignors
Corp., Crystal
Lake, Ill.
APPARATUS
A nonaqueous
PLATING A CONTACT PAD
January 2003
com-
to
A conveyor apparatus for the simultaneous and discontinuous movement of a plurality of workpieces to and between a plurality of treatment stations including an elongated and stationary structural frame having an entrance end and an exit end; a plurality of treatment stations positioned along the length of the frame and in spaced relation thereto; a travel mechanism carried on the frame and moveable relative to the frame between adjacent treatment stations; a hoist mechanism carried on the travel mechanism and having retractable and extendable members; and an elongated beam, which extends along the frame and is connected to the hoist mechanism by the retractable and extendable members and is constructed for movement between a lower position and an upper position and to releasably support each of a plurality of workpieces.
J R. Babjak et al., assignors to The Sherwin-Williams Co., Cleveland
dispersion
6,346,185.
J T Kinard Feb. 12,2002
FOR ELECTROLESS
to
Inc., Boise, Idaho
An apparatus for sequential in situ cleaning and formation of a conductive passivation layer on a conductive element in an integrated circuit.
US. Patent FOR PLATING COPPER
Feb. 12,2002
and L. Li, assignors
Feb. 12,2002
et al., assignors
Electronics
Corp., Greenville,
to Kemet S.C.
A method of anodizing a valve metal substrate comprising immersing the substrate in a borate polyester electrolyte solution and applying sufficient anodizing voltage to the solution, wherein the borate polyester electrolyte solution is formed by combining 2-methyl-1.3-propane diol and boric acid and heating to a temperature of 130 to 160°C. ALKALINE
STRIP PASSIVATION
US. Patent J Rieson Germany,
6,346,295.
Feb. 12,2002
and H. Krautbauer, assignors
Duesseldorf;
to Henkel KG,
Germany
A process for the alkaline passivation of a metal surface selected from the group consisting of galvanized steel, alloy-galvanized steel, and aluminum comprising forming an alkaline aqueous solution comprising 0.1 to 1 g/L of magnesium; 0.1 to 1 g/L of iron (III); and 0.5 to 5 g/L amino or hydrocarboxylate; 0.001 to 10 g/L of a member selected from the group consisting of acrylic acid, methacrylic acid, oligomers comprising acrylic acid residues, oligomers comprising methacrylic residues, and mix-
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