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Epoxy electrocoat
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, DC. 2023 I.
Sputtering
Apparatus
U.S. Patent 5,753,090.
May 19, 1998 H. Obinafa, assignor to Won Shinku Gijutsu KK, Kanagawa-Ken,Japan
A high vacuum sputtering apparatus comprising a vacuum chamber adapted for maintaining an internal pressure less than I X 10.’ torr during sputtering; means for positioning a substrate of predetermined diameter to be processed in the vacuum chamber; and a sputtering target disposed opposite to the substrate vacuum chamber and having a sputtering surface with an outer periphery defining a diameter less than one and a half times the diameter of the substrate to be processed.
Cylindrical System
Carriage
A method for monitoring the constituents presenl in a conversion coating solution used in a nonelectrolytic conversion coating process comprising applying a selected DC potential to a working electrode; superimposing a constant AC voltage on the DC potential and producing an AC current; varying the DC potential at a chosen sweep rate over a chosen range; and measuring the DC and/or AC current at one or more reference phase angles to determine and monitor the constituents in the solution.
Method
D.R. Hollars and R.B. Z&e&, assignors Velocidata Inc., Santa Clara, Caiit
to
A cylindrical vacuum deposition apparatus for depositing at least one layer of coating material on substrates comprising means forming a sealed annular chamber and including first and second concentric cylinder vvalls joined together by top and bottom annular sealing flanges; a cylindrical carriage formed by a third rotatable cylinder disposed within the annular chamber between the two cylinder walls: at least one opening formed in the carriage and including means for supporting at least one substrate: and mechanical rotation means providing controlled positioning of the carriage relative to the cylinder walls and within a passageway defined by the annular chamber.
Device
U.S. Patenf 5,753,099. May 19, 1998 6. Gravel et a/,, assignors to Mefafix Inc., Monfreal, Canada
An apparatus for electrolytic recovery of a conductive metal from a liquid containing the metal in solution comprising a housing defining a cavity for receiving the liquid; an anode removably supported within the cavity: and a discrete cathode member comprising a carrier sheet of a material from which the metal is readily refinable when smelted with the material, 100
U.S. Pafent 5,753,101. May 19, 1998 EA. Ludwig, Ranch0 Pales Verdes, Calif.
Sputtering
U.S. Patent 5,753,092. May 19, 1998
Metal Recovery
Method of Monitoring Conversion Coating Baths
for Recovering
Metals
U.S. Patent ~$753,125. May 19. 1998 1. Kreisler. North Lindenhurst, N. Y
A process for recycling metals comprising feeding a solution of dissolved precious and nonprecious metal-bearing waste materials into a chamber; adjusting the pH from 3.5 to 10.5: mixing with a metal complexing agent comprising dimethyl dithiocarbamate, sodium hydroxide, and water; precipitating a metal from the mixture to form an ionic sludge; and dewatering to a substantially anhydrous state to recover metals therefrom.
Activation Bath for Electroless Nickel Plating U.S. Patent .5,75’3,304. May 19, 1998 K rung, assignor to The Metal Ark Co. Inc., Geneva, N. Y.
In a process for the electroless nickel plating of a substrate including the steps of cleaning the substrate. activating the substrate, and applying nickel to the substrate in an electroless plating bath, the improvement comprising employing an activation bath comprising 0. I to 2 grams of a palladium salt. 20 to 250 grams of an alkaline metal fluoride or hydrofluoric acid, 0.05 to 0.5 liter of a carboxylic acid as a complexing agent. from I to .? grams of an alkali metal salt of gluconic acid. from I to 5 grams of an iron salt. from IO to 30 garms of a nickel salt. and sufficient deionized water to make one gallon,
Electrostatic
Coating
Method
U.S. Patenf !j,753,315. May 19, 1998 S. Minoura et al., assignors fo Honda Giken Kogyo KK, Tokyo
A method of electrostatically coating a workpiece with an internal-voltage-application rotary atomizing electrostatic coating apparatus comprising varying the voltage applied to the rotor thereby varying a coated pattern width of the electrically conductive paint coated on the workpiece.
Method
for Ion Plating
U.S. Patent 5,753,319. May 19, 1998 J. Knapp and LA. LeHanc, assignors to Corion Corp.. Frankl’in, Mass,
A method for ion plating deposition of a multilayer coating onto a substrate, the coating comprising alternating layers of titanium oxide and a material having an index of retraction of less than 2.0.
Organic
Stripping
Composition
U.S. Patent .5,753,601. May 19, 1998 I.E. Ward and EW. Micheloff~. assignors Inc., Ashlano’, Ky.
to Ashland
In a process of stripping comprising the steps of npplying an aqueous stripping composition consisting of organic polar solvent and a basic amine to a substrate having a ;ohotorcsist coating and organic and/or inorganic residues and removing the stripping composition. photoresist coating, and residues from the substrate, the improvement vvherein the composition has a pH of at least I I and is an admixture, which further consists of an effectivje inhibiting amount of pyrogallol.
Paint Stripping
Composition
U.S. Patenf .5,753,603. May 19. 1998 J-P La/her and S. Fouquay, ass/gnors to E/f Atochem S.A.. Puteaux, France
A paint stripping composition comprising by volume I to 20%’ of an aprotic polar solvent selected from the group consisting of dimethyl sulfoxide, dimethyl formamide, Nmethylpyrrolidone. N-methyl-morpholine,ybutyrolactonc. acetonitrile and mixtures thereof; and Y9 to 80% of an ether,
Epoxy
Eilectrocoat
U.S. Patent 5,753,7X
METAL
FlNlfSHlNG
May 19, 1998
l
NOVEMBER
1998
H. Reufer et al., assignors Farben AG, Muensfer-Hiltup,
to BASF Lacke t Germany
A modified epoxy resin for cathodic electrodeposition with catalyst deactivation and diol modification.
Coating
Composition Water-Based Composition
U.S. Patent 5753,737. May 19, 1998 S. Matsumuraef al., assignors to Kanegafuch Kagaku Kogyo KK, Osaka, Japan
An undercoat composition comprising a silyl group containing vinyl polymer whose main chain consists essentially of a vinyl polymer and which has on the polymer chain end or the side chain thereof at least one silicon atom. IO which a hydrolyzable group is linked, per polymer molecule; a reaction product of an aminosilane compound with an epoxy compound; a hydrolyzable ester compound: and an inorganic pigment.
Process
which comprises applying an aqueous coating composition having good adhesion comprising 10 to 70% by weight of one or more epoxide resins containing epoxide groups, 5 to 70% of one or more organic solvents; IO to 70% of water; and one or more chlorinated polyolefins.
for Coating
Plastics
U.S. Patent 5,753,739. May 79, 1998 W. Diener et a/., assignors to Herberts Wuppertal, Germany
GmbH,
A process for coating plastic substrates.
Coating
U.S. Pafenf 5753.740. May 19, 1998 T Odawa and T Okai, assjgnors to Nippon Painf Co. Ltd., Osaka. Japan
A water-based coating composition, which comprises 100 parts by weight of at least one member selected from the group consisting of water-soluble alkyd resins and water-soluble acrylic resins; IO to 200 parts of at least one hardener; and 0.5 to S parts of at least one acidic catalyst.
High-Solids Composition
balance being catalyst and organic liquid carrier, wherein the binder comprises the following separate components, 5 to 50% by weight of lone or more hydroxy-functional oligoesters; 10 to 90% of a hydroxyfunctional acrylic or methacrylic copolymer: 5 to 305% of a crosslinking agent; and an effective amount of a curing catalyst.
Coating
Chromium-Free
Coating
U.S. Patent 5,753,779. May 19, 1998 J. J. H. Verberg, assignor to AD W Chemical Producfs B. K, He,jningen, Netherlands
An aqueous, chromium-free coating preparation for the treatment of metal surfaces, in particular for pretreatment thereof, comprising an acidic polyacrylate polymer as binder and a crosslinking system, wherein the crosslinking system comprises at least one hydroxide of a divalent metal and an amine compound.
U.S. Patent 5753,756. May 19, 1998 A Aerfs and J. Huybrecbfs. assignors to E.I. du Plnf de Nemours and Co., Wilmington, Del.
Housing for Industrial Equipment
A coating composition comprising 25 to 80% by weight of binder components. the
U.S. Pafenf 5,755,246. May 26, 1998 D. W. Carl et al., assignors fo George Koch Sons Inc., Evansville, Ind.
Finishing
TETRA’s Higgins Loop” countercurrent continuous ion exchange (CCW) system separates and reconcentrates acid from spent solutions containing metal salts.
MeDeA Systems - Your Solution ibr Monitoring Heavy Metals Concentration In Wastewater The MeDeA products automatically monitor on-line concentration of : Zn, Cr, Ni, Cu, Fe, Pb, and other metals.
Circle 144 on reader information card METAL FINISHING
. NOVEMBER
1998
Circle 118 on reader information card 101
Sputtering
Apparatus
U.S. Patent 5,753,090.
May 19, 1998 H. Obinafa, assignor to Won Shinku Gijutsu KK, Kanagawa-Ken,Japan
A high vacuum sputtering apparatus comprising a vacuum chamber adapted for maintaining an internal pressure less than I X 10.’ torr during sputtering; means for positioning a substrate of predetermined diameter to be processed in the vacuum chamber; and a sputtering target disposed opposite to the substrate vacuum chamber and having a sputtering surface with an outer periphery defining a diameter less than one and a half times the diameter of the substrate to be processed.
Cylindrical System
Carriage
A method for monitoring the constituents presenl in a conversion coating solution used in a nonelectrolytic conversion coating process comprising applying a selected DC potential to a working electrode; superimposing a constant AC voltage on the DC potential and producing an AC current; varying the DC potential at a chosen sweep rate over a chosen range; and measuring the DC and/or AC current at one or more reference phase angles to determine and monitor the constituents in the solution.
Method
D.R. Hollars and R.B. Z&e&, assignors Velocidata Inc., Santa Clara, Caiit
to
A cylindrical vacuum deposition apparatus for depositing at least one layer of coating material on substrates comprising means forming a sealed annular chamber and including first and second concentric cylinder vvalls joined together by top and bottom annular sealing flanges; a cylindrical carriage formed by a third rotatable cylinder disposed within the annular chamber between the two cylinder walls: at least one opening formed in the carriage and including means for supporting at least one substrate: and mechanical rotation means providing controlled positioning of the carriage relative to the cylinder walls and within a passageway defined by the annular chamber.
Device
U.S. Patenf 5,753,099. May 19, 1998 6. Gravel et a/,, assignors to Mefafix Inc., Monfreal, Canada
An apparatus for electrolytic recovery of a conductive metal from a liquid containing the metal in solution comprising a housing defining a cavity for receiving the liquid; an anode removably supported within the cavity: and a discrete cathode member comprising a carrier sheet of a material from which the metal is readily refinable when smelted with the material, 100
U.S. Pafent 5,753,101. May 19, 1998 EA. Ludwig, Ranch0 Pales Verdes, Calif.
Sputtering
U.S. Patent 5,753,092. May 19, 1998
Metal Recovery
Method of Monitoring Conversion Coating Baths
for Recovering
Metals
U.S. Patent ~$753,125. May 19. 1998 1. Kreisler. North Lindenhurst, N. Y
A process for recycling metals comprising feeding a solution of dissolved precious and nonprecious metal-bearing waste materials into a chamber; adjusting the pH from 3.5 to 10.5: mixing with a metal complexing agent comprising dimethyl dithiocarbamate, sodium hydroxide, and water; precipitating a metal from the mixture to form an ionic sludge; and dewatering to a substantially anhydrous state to recover metals therefrom.
Activation Bath for Electroless Nickel Plating U.S. Patent .5,75’3,304. May 19, 1998 K rung, assignor to The Metal Ark Co. Inc., Geneva, N. Y.
In a process for the electroless nickel plating of a substrate including the steps of cleaning the substrate. activating the substrate, and applying nickel to the substrate in an electroless plating bath, the improvement comprising employing an activation bath comprising 0. I to 2 grams of a palladium salt. 20 to 250 grams of an alkaline metal fluoride or hydrofluoric acid, 0.05 to 0.5 liter of a carboxylic acid as a complexing agent. from I to .? grams of an alkali metal salt of gluconic acid. from I to 5 grams of an iron salt. from IO to 30 garms of a nickel salt. and sufficient deionized water to make one gallon,
Electrostatic
Coating
Method
U.S. Patenf !j,753,315. May 19, 1998 S. Minoura et al., assignors fo Honda Giken Kogyo KK, Tokyo
A method of electrostatically coating a workpiece with an internal-voltage-application rotary atomizing electrostatic coating apparatus comprising varying the voltage applied to the rotor thereby varying a coated pattern width of the electrically conductive paint coated on the workpiece.
Method
for Ion Plating
U.S. Patent 5,753,319. May 19, 1998 J. Knapp and LA. LeHanc, assignors to Corion Corp.. Frankl’in, Mass,
A method for ion plating deposition of a multilayer coating onto a substrate, the coating comprising alternating layers of titanium oxide and a material having an index of retraction of less than 2.0.
Organic
Stripping
Composition
U.S. Patent .5,753,601. May 19, 1998 I.E. Ward and EW. Micheloff~. assignors Inc., Ashlano’, Ky.
to Ashland
In a process of stripping comprising the steps of npplying an aqueous stripping composition consisting of organic polar solvent and a basic amine to a substrate having a ;ohotorcsist coating and organic and/or inorganic residues and removing the stripping composition. photoresist coating, and residues from the substrate, the improvement vvherein the composition has a pH of at least I I and is an admixture, which further consists of an effectivje inhibiting amount of pyrogallol.
Paint Stripping
Composition
U.S. Patenf .5,753,603. May 19. 1998 J-P La/her and S. Fouquay, ass/gnors to E/f Atochem S.A.. Puteaux, France
A paint stripping composition comprising by volume I to 20%’ of an aprotic polar solvent selected from the group consisting of dimethyl sulfoxide, dimethyl formamide, Nmethylpyrrolidone. N-methyl-morpholine,ybutyrolactonc. acetonitrile and mixtures thereof; and Y9 to 80% of an ether,
Epoxy
Eilectrocoat
U.S. Patent 5,753,7X
METAL
FlNlfSHlNG
May 19, 1998
l
NOVEMBER
1998
H. Reufer et al., assignors Farben AG, Muensfer-Hiltup,
to BASF Lacke t Germany
A modified epoxy resin for cathodic electrodeposition with catalyst deactivation and diol modification.
Coating
Composition Water-Based Composition
U.S. Patent 5753,737. May 19, 1998 S. Matsumuraef al., assignors to Kanegafuch Kagaku Kogyo KK, Osaka, Japan
An undercoat composition comprising a silyl group containing vinyl polymer whose main chain consists essentially of a vinyl polymer and which has on the polymer chain end or the side chain thereof at least one silicon atom. IO which a hydrolyzable group is linked, per polymer molecule; a reaction product of an aminosilane compound with an epoxy compound; a hydrolyzable ester compound: and an inorganic pigment.
Process
which comprises applying an aqueous coating composition having good adhesion comprising 10 to 70% by weight of one or more epoxide resins containing epoxide groups, 5 to 70% of one or more organic solvents; IO to 70% of water; and one or more chlorinated polyolefins.
for Coating
Plastics
U.S. Patent 5,753,739. May 79, 1998 W. Diener et a/., assignors to Herberts Wuppertal, Germany
GmbH,
A process for coating plastic substrates.
Coating
U.S. Pafenf 5753.740. May 19, 1998 T Odawa and T Okai, assjgnors to Nippon Painf Co. Ltd., Osaka. Japan
A water-based coating composition, which comprises 100 parts by weight of at least one member selected from the group consisting of water-soluble alkyd resins and water-soluble acrylic resins; IO to 200 parts of at least one hardener; and 0.5 to S parts of at least one acidic catalyst.
High-Solids Composition
balance being catalyst and organic liquid carrier, wherein the binder comprises the following separate components, 5 to 50% by weight of lone or more hydroxy-functional oligoesters; 10 to 90% of a hydroxyfunctional acrylic or methacrylic copolymer: 5 to 305% of a crosslinking agent; and an effective amount of a curing catalyst.
Coating
Chromium-Free
Coating
U.S. Patent 5,753,779. May 19, 1998 J. J. H. Verberg, assignor to AD W Chemical Producfs B. K, He,jningen, Netherlands
An aqueous, chromium-free coating preparation for the treatment of metal surfaces, in particular for pretreatment thereof, comprising an acidic polyacrylate polymer as binder and a crosslinking system, wherein the crosslinking system comprises at least one hydroxide of a divalent metal and an amine compound.
U.S. Patent 5753,756. May 19, 1998 A Aerfs and J. Huybrecbfs. assignors to E.I. du Plnf de Nemours and Co., Wilmington, Del.
Housing for Industrial Equipment
A coating composition comprising 25 to 80% by weight of binder components. the
U.S. Pafenf 5,755,246. May 26, 1998 D. W. Carl et al., assignors fo George Koch Sons Inc., Evansville, Ind.
Finishing
TETRA’s Higgins Loop” countercurrent continuous ion exchange (CCW) system separates and reconcentrates acid from spent solutions containing metal salts.
MeDeA Systems - Your Solution ibr Monitoring Heavy Metals Concentration In Wastewater The MeDeA products automatically monitor on-line concentration of : Zn, Cr, Ni, Cu, Fe, Pb, and other metals.
Circle 144 on reader information card METAL FINISHING
. NOVEMBER
1998
Circle 118 on reader information card 101