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Electrocoating composition
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.
Acrylic
Coating
Composition
U.S. Pafent 5726,235. Mar. IO, 1998 M. Takegi and T: Baba, assignors to National Starch and Chemicallnwesfment Ho/ding Corp., Wi/mingfon, Del.
An aqueous coating composition wherein coated fine grains are contained in aqueous medium.
Aqueous Coatings
Etch-Resistant
U.S. Pafent 5726,244. Mar. IO, 1998 J.L? McGee et al, assignors fo BASF Corp., Southfield, Micb.
An aqueous, curable coating composition comprising a carbamate-functional, grafted acrylic polymer and a compound having a plurality of functional groups that are reactive with the carbamate functionality.
Etch-Resistant
Coating
U.S. Patent 5,726,246. Mar. 10, 1998 J. W. Rehfuss and D.1. St. Aubin, assignors BASF Corp., Southfield. Mich.
IO
A method for improving etch resistance in a coating utilizing a carbamate--functional polymer composition.
Rotary Atomizer U.S. Patent 5,727,735. Mar. 17, 1998 M. Baumann et al, assignors to Behr Systems Rochester Hills, Mich.
Inc.,
A rotary atomizer for a coating arrangement comprising a spray element mounted on a rotating shaft, a drive motor for the spray element. and a stationary channel body.
Spray Nozzle U.S. Patent 5727,739. Mar. 17, 1998 R.J. Hamilton, assignor fo Spraying Systems Wheaton, 111.
Co.,
A nozzle with quick disconnect spray tip.
Surface Treatment Aluminum
for
U.S. Patenf 5,728,233. Mar. 17, 1998 S. lkeda and M. Kamimura, assignors to Nippon Paint Co. Ltd., Osaka, Japan
A surface treatment composition for aluminum and its alloys comprising at least one member selected from the group of 90
phosphoric acid, condensed phosphoric acid, or salt of the acids, at a concentration in the range of 10 to 500 ppm as PO,; at least one member selected from the group of zirconium salt and titanium salt at a concentration in the range of IO to 500 ppm as the metal; and effective fluoride, at a concentration in the range of 1 to 50 ppm as fluorine, further comprising at least one member selected from the group of phosphorous acid, hypophosphorous acid, or salts of the acids. at a concentration in the range of IO to 5,000 ppm as PO, or hypophosphorous acid.
Composition Aluminiferous
for Treating Metals
U.S. Patent 5,728,234. Mar. 17, 1998 7: Aoki and M. Yosbida, assignors to Henkel Corp., Plymouth Meeting, Pa.
An aqueous liquid composition for treating the surface of aluminiferous metals, either as such or after dilution with additional water, comprising water I to 30 parts by weight of phosphate ions; 0. I to 10 parts by weight of condensed phosphate ions; and 0. I to 20 parts by weight of watersoluble polymer.
Manganese Conversion Composition
Phosphate Coating
U.S. Patenf 5,728,235. Mar. 17, 1998 MS. Boulos et al, assignors to Henkel Corp., Plymouth Meefing, Pa.
A process for forming a conversion coating on a metal substrate surface without the imposition of any external electromotive force on or electric current through the metal substrate by contacting with an acidic aqueous liquid composition comprising water and 0.70 to 3.0 ppt of dissolved divalent manganese cations; dissolved phosphate anions, expressed in the same units as said concentration of divalent manganese cations, such that the concentration of divalent manganese cations has a ratio to the concentration of dissolved phosphate anions that is from 1.0:30 to I .O:18.0, said concentration of dissolved phosphate anions being not greater than 40 ppt; and a concentralion of nitric acid, said composition having a temperature not more than 75°C.
Ornamental
Rust Finish
U.S. Pafent 5,728,236. Mar. 17, 1998 PA. Rundhaug, assignor fo Chem-Pro, Tucson, Ariz.
A process for producing an ornamental rust finish on a ferrous metal surface comprising applying an aqueous solution having ferric oxide-forming oxidizing reactivity with the ferrous metal surface comprising a copper salt and an acid. said copper salt being selected from the group consisting of copper sulfate, copper nitrate, and copper chloride. haid acid being selected from the group consisting of sulfamic acid and oxalic acid.
Sputtering
Target
U.S.Patenf 5,728,279. Mar. 17, 1998 M. Schloft et al, assignors to Leybold Materials GmbH, Hanau, Germany
A cobalt-base alloy target for magnetron cathode sputtering systems.
Sputtering
Apparatus
US. Patent 5,728,280. Mar. 17, 1998 M. Scherer. assignor lo Bafzers Process Systems GmbH, Hanau, Germany
An apparatus for coating substrates by cathode sputtering with a hollow target.
Electrocoating
Composition
U.S. Patent 5,728,283. Mar. 17, 1998 H. Reuter et al, assignors to BASF lacke AG, Muenster-Hilfrup, Germany
Farben
An aqueous electrocoating composition comprising cathodically depositable synthetic resins and an additive comprising crosslinked polymer microparticles.
Electroforming
Process
U.S. Patent 5,728,284. Mar. 17, 1998 K. Oyama, assignor to KTX Co. Ltd., Aichi-ken, Japan
A process for manufacturing a porous electroformed shell, which comprises preparing a mandrel having an electrically conductive surface; forming a poreless first electroformed layer containing a substantial amount of a first surface active agent sufficient to restrain formation of pinholes; removing
the mandrel
and
layer
from
so-
lution; and forming through the said layer slrdight pores, each having an approximately equal diameter along a length thercMETAL FINISHING
l
SEPTEMBER
1998
Acrylic
Coating
Composition
U.S. Pafent 5726,235. Mar. IO, 1998 M. Takegi and T: Baba, assignors to National Starch and Chemicallnwesfment Ho/ding Corp., Wi/mingfon, Del.
An aqueous coating composition wherein coated fine grains are contained in aqueous medium.
Aqueous Coatings
Etch-Resistant
U.S. Pafent 5726,244. Mar. IO, 1998 J.L? McGee et al, assignors fo BASF Corp., Southfield, Micb.
An aqueous, curable coating composition comprising a carbamate-functional, grafted acrylic polymer and a compound having a plurality of functional groups that are reactive with the carbamate functionality.
Etch-Resistant
Coating
U.S. Patent 5,726,246. Mar. 10, 1998 J. W. Rehfuss and D.1. St. Aubin, assignors BASF Corp., Southfield. Mich.
IO
A method for improving etch resistance in a coating utilizing a carbamate--functional polymer composition.
Rotary Atomizer U.S. Patent 5,727,735. Mar. 17, 1998 M. Baumann et al, assignors to Behr Systems Rochester Hills, Mich.
Inc.,
A rotary atomizer for a coating arrangement comprising a spray element mounted on a rotating shaft, a drive motor for the spray element. and a stationary channel body.
Spray Nozzle U.S. Patent 5727,739. Mar. 17, 1998 R.J. Hamilton, assignor fo Spraying Systems Wheaton, 111.
Co.,
A nozzle with quick disconnect spray tip.
Surface Treatment Aluminum
for
U.S. Patenf 5,728,233. Mar. 17, 1998 S. lkeda and M. Kamimura, assignors to Nippon Paint Co. Ltd., Osaka, Japan
A surface treatment composition for aluminum and its alloys comprising at least one member selected from the group of 90
phosphoric acid, condensed phosphoric acid, or salt of the acids, at a concentration in the range of 10 to 500 ppm as PO,; at least one member selected from the group of zirconium salt and titanium salt at a concentration in the range of IO to 500 ppm as the metal; and effective fluoride, at a concentration in the range of 1 to 50 ppm as fluorine, further comprising at least one member selected from the group of phosphorous acid, hypophosphorous acid, or salts of the acids. at a concentration in the range of IO to 5,000 ppm as PO, or hypophosphorous acid.
Composition Aluminiferous
for Treating Metals
U.S. Patent 5,728,234. Mar. 17, 1998 7: Aoki and M. Yosbida, assignors to Henkel Corp., Plymouth Meeting, Pa.
An aqueous liquid composition for treating the surface of aluminiferous metals, either as such or after dilution with additional water, comprising water I to 30 parts by weight of phosphate ions; 0. I to 10 parts by weight of condensed phosphate ions; and 0. I to 20 parts by weight of watersoluble polymer.
Manganese Conversion Composition
Phosphate Coating
U.S. Patenf 5,728,235. Mar. 17, 1998 MS. Boulos et al, assignors to Henkel Corp., Plymouth Meefing, Pa.
A process for forming a conversion coating on a metal substrate surface without the imposition of any external electromotive force on or electric current through the metal substrate by contacting with an acidic aqueous liquid composition comprising water and 0.70 to 3.0 ppt of dissolved divalent manganese cations; dissolved phosphate anions, expressed in the same units as said concentration of divalent manganese cations, such that the concentration of divalent manganese cations has a ratio to the concentration of dissolved phosphate anions that is from 1.0:30 to I .O:18.0, said concentration of dissolved phosphate anions being not greater than 40 ppt; and a concentralion of nitric acid, said composition having a temperature not more than 75°C.
Ornamental
Rust Finish
U.S. Pafent 5,728,236. Mar. 17, 1998 PA. Rundhaug, assignor fo Chem-Pro, Tucson, Ariz.
A process for producing an ornamental rust finish on a ferrous metal surface comprising applying an aqueous solution having ferric oxide-forming oxidizing reactivity with the ferrous metal surface comprising a copper salt and an acid. said copper salt being selected from the group consisting of copper sulfate, copper nitrate, and copper chloride. haid acid being selected from the group consisting of sulfamic acid and oxalic acid.
Sputtering
Target
U.S.Patenf 5,728,279. Mar. 17, 1998 M. Schloft et al, assignors to Leybold Materials GmbH, Hanau, Germany
A cobalt-base alloy target for magnetron cathode sputtering systems.
Sputtering
Apparatus
US. Patent 5,728,280. Mar. 17, 1998 M. Scherer. assignor lo Bafzers Process Systems GmbH, Hanau, Germany
An apparatus for coating substrates by cathode sputtering with a hollow target.
Electrocoating
Composition
U.S. Patent 5,728,283. Mar. 17, 1998 H. Reuter et al, assignors to BASF lacke AG, Muenster-Hilfrup, Germany
Farben
An aqueous electrocoating composition comprising cathodically depositable synthetic resins and an additive comprising crosslinked polymer microparticles.
Electroforming
Process
U.S. Patent 5,728,284. Mar. 17, 1998 K. Oyama, assignor to KTX Co. Ltd., Aichi-ken, Japan
A process for manufacturing a porous electroformed shell, which comprises preparing a mandrel having an electrically conductive surface; forming a poreless first electroformed layer containing a substantial amount of a first surface active agent sufficient to restrain formation of pinholes; removing
the mandrel
and
layer
from
so-
lution; and forming through the said layer slrdight pores, each having an approximately equal diameter along a length thercMETAL FINISHING
l
SEPTEMBER
1998