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Corrosion-Resistant Coating
in a single coating unit, comprising applying the paints to the substrates, and recovering the overspray of the paints. wherein the overspray is a mixture of the paints of different hues or colors, optionally, adding fresh paint to the recovered paint. selecting one or more substrates, where the desired coating color for the substrate is the color of the recovered mixed paint, and reusing the recovered paint in the spray painting process to coat the selected substrate.
Aqueous
Polyurethane
U.S. Patenr 5,658,617. Aug. 19, 1997 A. GObe/ and H-P Patzschke, assignors to Herberts GmbH, Wuppertal,Germany
A method for applying an aqueous coating agent to a substrate and curing it at temperatures of up to 150”C, wherein the aqueous coating agent is free of crosslinking agents and comprises a binder consisting of 10 to 70% by weight of a polyurethane dispersion, and 90 to 30%’ of a waterdilutable binder.
Corrosiion-Resistant
Coating
U.S. Patenl 5,658,649. Aug. 19, 1997 D.A. WrobB?ski et al, assignors to The Regenfs of
the University of CalfforniaOfficeof Technology Transfer,Alameda, Calif.
able resins and blocked isocyanates without tin.
A coated article ha\ ing improved corrosion resistance when scratched through the coating to the substrate and subjected to exposure to an aerated 0.1 M hydrochloric acid solution for eight weeks comprising a metal substrate subject to corrosion selected from the group consisting of stainless steel, iron, nickel, nickel-based alloys, and aluminum; a layer of a conductive polymer coating from 0.5 to 5 mils in thickness having a first side directly adhered to the metal surface and a second side opposite the first side; and a topcoat layer adhered upon the second side of the conductive polymer coating layer adapted to provide physical protection to the conductive polymer layer.
Cationic Coating
Electrodeposition
U.S. Patent 5,656,660. Ay. i9, 1997 H. Teshima et al, assignors to Matsushita lndusfrial Co. Ltd., Kadoma, Japan
Multilayer
Composition
U.S. Patenf 5,658,670. Aug. 19, 1997 7: Fukushi and PJ. Wang, assignors to 3M Co., Paul, Minn.
A method for increasing the adhesion of a first layer comprising fluoropolymer to a second layer comprising a melt-processable, substantially nonfluorinated polymer, comprising mixing an aliphatic di- or polyamine of less than 1,000 molecular weight with a melt-processable composition comprising the substantially nonfluorinated polymer; and forming a multilayer composite wherein the fluoropolymer comprises interpolymerized units derived from vinylidene fluoride. and the nonfluorinated polymer is a polyamide, polyimide. polyurethane, or a carboxyl anhydridt: or inude functional polyolefin.
Fluoroelastomer Composition
Hectric
A magnetic core coated with a film of a cationic electrodeposition coating composition comprising cationic electrodeposit-
St.
Coating
U.S. Parent 5,658,671. Aug. 19, 1997 T Fukushi, assignor fo 3M Co., St. Paul, Minn.
An article with a coating composition, which Lomprises fluoroelastomer, and for
Pre-Engineered Pre-Assembled ompact De Low Decibel Rating Fast Color Change Meets NFPA 33 deimco.com l l l l
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1998
Aqueous
Polyurethane
U.S. Patenr 5,658,617. Aug. 19, 1997 A. GObe/ and H-P Patzschke, assignors to Herberts GmbH, Wuppertal,Germany
A method for applying an aqueous coating agent to a substrate and curing it at temperatures of up to 150”C, wherein the aqueous coating agent is free of crosslinking agents and comprises a binder consisting of 10 to 70% by weight of a polyurethane dispersion, and 90 to 30%’ of a waterdilutable binder.
Corrosiion-Resistant
Coating
U.S. Patenl 5,658,649. Aug. 19, 1997 D.A. WrobB?ski et al, assignors to The Regenfs of
the University of CalfforniaOfficeof Technology Transfer,Alameda, Calif.
able resins and blocked isocyanates without tin.
A coated article ha\ ing improved corrosion resistance when scratched through the coating to the substrate and subjected to exposure to an aerated 0.1 M hydrochloric acid solution for eight weeks comprising a metal substrate subject to corrosion selected from the group consisting of stainless steel, iron, nickel, nickel-based alloys, and aluminum; a layer of a conductive polymer coating from 0.5 to 5 mils in thickness having a first side directly adhered to the metal surface and a second side opposite the first side; and a topcoat layer adhered upon the second side of the conductive polymer coating layer adapted to provide physical protection to the conductive polymer layer.
Cationic Coating
Electrodeposition
U.S. Patent 5,656,660. Ay. i9, 1997 H. Teshima et al, assignors to Matsushita lndusfrial Co. Ltd., Kadoma, Japan
Multilayer
Composition
U.S. Patenf 5,658,670. Aug. 19, 1997 7: Fukushi and PJ. Wang, assignors to 3M Co., Paul, Minn.
A method for increasing the adhesion of a first layer comprising fluoropolymer to a second layer comprising a melt-processable, substantially nonfluorinated polymer, comprising mixing an aliphatic di- or polyamine of less than 1,000 molecular weight with a melt-processable composition comprising the substantially nonfluorinated polymer; and forming a multilayer composite wherein the fluoropolymer comprises interpolymerized units derived from vinylidene fluoride. and the nonfluorinated polymer is a polyamide, polyimide. polyurethane, or a carboxyl anhydridt: or inude functional polyolefin.
Fluoroelastomer Composition
Hectric
A magnetic core coated with a film of a cationic electrodeposition coating composition comprising cationic electrodeposit-
St.
Coating
U.S. Parent 5,658,671. Aug. 19, 1997 T Fukushi, assignor fo 3M Co., St. Paul, Minn.
An article with a coating composition, which Lomprises fluoroelastomer, and for
Pre-Engineered Pre-Assembled ompact De Low Decibel Rating Fast Color Change Meets NFPA 33 deimco.com l l l l
Circle 075 on reader
86
information
card
Automatic Powder Systems Walk-In Powder Systems Manual Powder Systems Support Equipment
Circle 018 on reader METAL
information FINISHING
card .
APRIL
1998