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Alkaline strip passivation
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-
83
tures thereof, wherein the aqueous solution has a free alkalinity in the range of 5 to 20 points and a total alkalinity in the range of 7 to 30 points; and containing the metal surface with the alkaline aqueous solution. COATING REMOVAL
U.S. Patent 6347,976.
SYSTEM
Feb. 19,2002
S. A. Lawton et al., assignors to The Boeing Co., Seattle An apparatus for removing
a coating from a substrate comprising a nozzle having an outlet and adapted to direct a particle stream therethrough at a predetermined flow rate; a signal source for emitting a signal capable of traversing the particle stream; and a signal sensor positioned to detect the signal capable of traversing the particle stream; and a signal sensor positioned to detect the signal emitted by the signal source once the signal has passed through the particle stream. COMPOSITION
FOR REMOVING
PAINT
US. Patent 6,348,107. Feb. 19, 2002 C. A. Whitton et al., assignors to Chemetall PLC
A method of stripping paint from a substrate surface comprising providing a 2-phase liquid stripper composition consisting of an aqueous phase, which comprises water, dissolved water-soluble activator compound, and benzyl alcohol, and an organic phase comprising organic solvent; contacting the substrate surface with the aqueous phase; and stripping the paint from the substrate surface. UV-CURABLE
POWDER
COATING
CTS.Patent 6,348,242. Feb. 19, 2002 A. T Daly et al., assignors to Morton International Inc., Chicago
A method for producing a low or medium gloss appearance with UV-curable powder coatings. 84
COATING AGENT FOR A
FABRICATING
RESIN-MOLDED
TOOL
ARTICLE
A 3-DIMENSIONAL
US. Patent 6,348,537. Feb. 19, 2002
U.S. Patent 6,350,360. Feb. 26,2002
H. Sugamoto et al., assignors to
IV D. Bonivert and J T Hachman,
Mitsubishi Rayon Co. Ltd., Tokyo
assignors to Sandia Corp., Livermore, Calif
A coating composition comprising 50 to 99 parts by weight of a monomer or monomer mixture composed of 50 to 100% by weight of polyfunctional (methjacrylate monomer having at least two (meth)acryloyoxy groups in the molecule; 0 to 50% by weight of a monofunctional (methjacrylate monomer; and 1 to 50 parts by weight of colloidal silica. SOLVENTLESSS
PRIMERS
L?S. Patents 6,350,344. Feb. 26, 2002 H. G. Kinzelman
and M. Drobnik,
assignors to Henkel KG, Duesseldori Germany
A method for improving adhesion between a substrate and a coating layer comprising forming a layer of a solvent-free radiation-curable primer composition on the substrate wherein the solvent-free primer comprises at least one composition selected from the group consisting of cationically curable compositions and free-radically curable compositions.
A method for fabricating an imprint tool master comprising providing a metal plate or sheet; forming a first photoresist layer onto the metal plate or sheet; aligning an image pattern mask onto the first photoresist layer; exposing the first photoresist layer; removing the first image pattern mask; developing to provide a surface having 3-dimensional embossing pattern; depositing a conductive film onto the surface, thereby providing a master mandrel; electroforming a first metal layer on the conductive film; and separating the first metal layer from the master mandrel, wherein the first metal layer comprises the imprint tool master, said imprint tool master having a surface comprising an inverse 3dimensional image of the embossing pattern. PAINTING APPARATUS
US. Patent 6,350,491. Feb. 26,2002 l’! L. Williams, assignor to Adac
ANODIC
ELECTROPHORETIC
COATING METHOD
VS. Patents 6,350,358. Feb. 26, 2002 E. Ehmann et al., assignors to E.Z. du Pont de Nemours and Co., Wilmington, Del.
A method for anodic electrodip coating, wherein coating medium consumed is compensated for by under-neutralized anodic an replenishment material and wherein the replenishment material comprises a pigment-free aqueous binder vehicle component with a solid content of 40 to 70% by weight and a pigmentcontaining aqueous paste resin component with a solid content of 60 of 75%.
Plastics Inc., Grand Rapids, Mich.
A method of spray painting components comprising providing, in sequence, a load station, a paint station, a cure station, and an unload station; moving a part to be painted from the load station to a stop location at the spray station; applying a first coat of paint to the part at the spray station stop location; thereafter, prior to moving the part to the cure station, removing the part from the station stop location, spray returning the part to the spray station stop location, and applying a second coat of paint to the part at the spray station stop location; moving the part to the
Metal Finishing
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-
83
tures thereof, wherein the aqueous solution has a free alkalinity in the range of 5 to 20 points and a total alkalinity in the range of 7 to 30 points; and containing the metal surface with the alkaline aqueous solution. COATING REMOVAL
U.S. Patent 6347,976.
SYSTEM
Feb. 19,2002
S. A. Lawton et al., assignors to The Boeing Co., Seattle An apparatus for removing
a coating from a substrate comprising a nozzle having an outlet and adapted to direct a particle stream therethrough at a predetermined flow rate; a signal source for emitting a signal capable of traversing the particle stream; and a signal sensor positioned to detect the signal capable of traversing the particle stream; and a signal sensor positioned to detect the signal emitted by the signal source once the signal has passed through the particle stream. COMPOSITION
FOR REMOVING
PAINT
US. Patent 6,348,107. Feb. 19, 2002 C. A. Whitton et al., assignors to Chemetall PLC
A method of stripping paint from a substrate surface comprising providing a 2-phase liquid stripper composition consisting of an aqueous phase, which comprises water, dissolved water-soluble activator compound, and benzyl alcohol, and an organic phase comprising organic solvent; contacting the substrate surface with the aqueous phase; and stripping the paint from the substrate surface. UV-CURABLE
POWDER
COATING
CTS.Patent 6,348,242. Feb. 19, 2002 A. T Daly et al., assignors to Morton International Inc., Chicago
A method for producing a low or medium gloss appearance with UV-curable powder coatings. 84
COATING AGENT FOR A
FABRICATING
RESIN-MOLDED
TOOL
ARTICLE
A 3-DIMENSIONAL
US. Patent 6,348,537. Feb. 19, 2002
U.S. Patent 6,350,360. Feb. 26,2002
H. Sugamoto et al., assignors to
IV D. Bonivert and J T Hachman,
Mitsubishi Rayon Co. Ltd., Tokyo
assignors to Sandia Corp., Livermore, Calif
A coating composition comprising 50 to 99 parts by weight of a monomer or monomer mixture composed of 50 to 100% by weight of polyfunctional (methjacrylate monomer having at least two (meth)acryloyoxy groups in the molecule; 0 to 50% by weight of a monofunctional (methjacrylate monomer; and 1 to 50 parts by weight of colloidal silica. SOLVENTLESSS
PRIMERS
L?S. Patents 6,350,344. Feb. 26, 2002 H. G. Kinzelman
and M. Drobnik,
assignors to Henkel KG, Duesseldori Germany
A method for improving adhesion between a substrate and a coating layer comprising forming a layer of a solvent-free radiation-curable primer composition on the substrate wherein the solvent-free primer comprises at least one composition selected from the group consisting of cationically curable compositions and free-radically curable compositions.
A method for fabricating an imprint tool master comprising providing a metal plate or sheet; forming a first photoresist layer onto the metal plate or sheet; aligning an image pattern mask onto the first photoresist layer; exposing the first photoresist layer; removing the first image pattern mask; developing to provide a surface having 3-dimensional embossing pattern; depositing a conductive film onto the surface, thereby providing a master mandrel; electroforming a first metal layer on the conductive film; and separating the first metal layer from the master mandrel, wherein the first metal layer comprises the imprint tool master, said imprint tool master having a surface comprising an inverse 3dimensional image of the embossing pattern. PAINTING APPARATUS
US. Patent 6,350,491. Feb. 26,2002 l’! L. Williams, assignor to Adac
ANODIC
ELECTROPHORETIC
COATING METHOD
VS. Patents 6,350,358. Feb. 26, 2002 E. Ehmann et al., assignors to E.Z. du Pont de Nemours and Co., Wilmington, Del.
A method for anodic electrodip coating, wherein coating medium consumed is compensated for by under-neutralized anodic an replenishment material and wherein the replenishment material comprises a pigment-free aqueous binder vehicle component with a solid content of 40 to 70% by weight and a pigmentcontaining aqueous paste resin component with a solid content of 60 of 75%.
Plastics Inc., Grand Rapids, Mich.
A method of spray painting components comprising providing, in sequence, a load station, a paint station, a cure station, and an unload station; moving a part to be painted from the load station to a stop location at the spray station; applying a first coat of paint to the part at the spray station stop location; thereafter, prior to moving the part to the cure station, removing the part from the station stop location, spray returning the part to the spray station stop location, and applying a second coat of paint to the part at the spray station stop location; moving the part to the
Metal Finishing