Abstract: The present invention is directed towards an electrodepositable coating composition comprising a film-forming binder and electrically conductive particles, wherein the electrically conductive particles are present in an amount of at least 25% by weight, based on the total solids weight of the electrodepositable coating composition. The present invention is also directed towards methods of coating a substrate, coatings, and coated substrates.

Abstract: The present invention provides a dispersion of carbon nanotubes comprising an organic medium, carbon nanotubes dispersed in the organic medium, and a dispersant. The present invention further provides slurry compositions that include such dispersion, electrodes produced from the slurry composition, and electrical storage devices that comprise the electrode.

Abstract: Disclosed is a system for treating a surface of a multi-metal article. The system includes first and second and/or third conversion compositions for contacting at least a portion of the surface. The first conversion composition includes phosphate ions and zinc ions and is substantially free of fluoride. The second conversion composition includes a lanthanide series metal cation and an oxidizing agent. The third conversion composition includes an organophosphate compound, an organophosphonate compound, or combinations thereof that optionally may include at least one transition metal. Methods of treating a multi-metal article using the system also are disclosed. Also disclosed are substrates treated with the system and method.

Abstract: The present invention is directed towards a system for coating a substrate comprising an electrodepositable coating composition and a powder coating composition. Also disclosed are coated substrates comprising a first coating layer comprising an electrodepositable coating layer, and a second coating layer comprising a powder coating layer on at least a portion of the first coating layer, as well as methods of coating substrates.

Abstract: The present invention is directed towards an electrodepositable coating composition comprising a cationic electrodepositable binder; a phyllosilicate pigment; and a dispersing agent. Also disclosed are methods of making the electrodepositable coating composition, coatings derived therefrom, and substrates coated with the coatings derived from the electrodepositable coating composition.

Abstract: Disclosed is a system for maintaining a pretreatment bath containing a pretreatment comprising a Group IVB metal. The system comprises an aqueous reducing agent comprising a metal cation and a latent source of sulfate which, upon reaction with a contaminant in the pretreatment bath, forms a metal sulfate. The contaminant comprises a nitrite source. The metal sulfate salt has a pKsp of 4.5 to 11 at a temperature of 25° C. Also disclosed is a method for maintaining a pretreatment bath containing a pretreatment composition comprising a Group IVB metal. The method comprises supplying the reducing agent to the pretreatment bath in an amount sufficient to reduce a pollution ratio of the pretreatment bath to less than 1:1. Also disclosed are substrates with a pretreatment bath maintained according to the system and method.

Abstract: Methods for treating a substrate are disclosed. A method includes contacting a substrate with a pretreatment composition comprising a Group IVB metal and an electropositive metal and passing an electric current between an anode and the substrate serving as a cathode to deposit a coating from the pretreatment composition on the substrate. A method for treating an electrically conductive substrate also includes contacting the electrically conductive substrate with a pretreatment composition comprising a Group IVB metal and an electropositive metal and electrodepositing a coating on the electrically conductive substrate from the pretreatment composition. A method further includes contacting an electrically conductive substrate with a pretreatment composition comprising a Group IVB metal and an electropositive metal; and electrodepositing a coating on the electrically conductive substrate from the pretreatment composition, wherein the coating comprises each of the Group IVB metal and the electropositive metal.

Abstract: The present invention is directed towards an aqueous alkaline cleaner composition comprising: an iron cation, a molybdenum cation, a cobalt cation, or combinations thereof; and an alkaline component; wherein the pH of the aqueous alkaline composition is at least 10, and the aqueous alkaline composition includes no more than 50 ppm of phosphate. Also disclosed are treatment systems comprising an aqueous alkaline composition for treating at least a portion of a substrate, and a pretreatment composition for treating at least a portion of a substrate. Also disclosed are substrates treated according to the disclosed treatment systems.

Abstract: Disclosed is a method of treating a substrate, comprising contacting at least a portion of the substrate surface with a first composition comprising a lanthanide source and an oxidizing agent. A substrate obtainable by the methods also is disclosed.

Abstract: The present invention is directed towards an electrodepositable coating composition comprising a film-forming binder and electrically conductive particles, wherein the electrically conductive particles are present in an amount of at least 25% by weight, based on the total solids weight of the electrodepositable coating composition. The present invention is also directed towards methods of coating a substrate, coatings, and coated substrates.

Abstract: Disclosed is a system for maintaining a pretreatment bath containing a pretreatment comprising a Group IVB metal. The system comprises an aqueous reducing agent comprising a metal cation and a latent source of sulfate which, upon reaction with a contaminant in the pretreatment bath, forms a metal sulfate. The contaminant comprises a nitrite source. The metal sulfate salt has a pKsp of 4.5 to 11 at a temperature of 25° C. Also disclosed is a method for maintaining a pretreatment bath containing a pretreatment composition comprising a Group IVB metal. The method comprises supplying the reducing agent to the pretreatment bath in an amount sufficient to reduce a pollution ratio of the pretreatment bath to less than 1:1. Also disclosed are substrates with a pretreatment bath maintained according to the system and method.

Abstract: Disclosed is a system for treating a surface of a multi-metal article. The system includes first and second and/or third conversion compositions for contacting at least a portion of the surface. The first conversion composition includes phosphate ions and zinc ions and is substantially free of fluoride. The second conversion composition includes a lanthanide series metal cation and an oxidizing agent. The third conversion composition includes an organophosphate compound, an organophosphonate compound, or combinations thereof that optionally may include at least one transition metal. Methods of treating a multi-metal article using the system are disclosed. Also disclosed are substrates treated with the system and method.

Abstract: Disclosed is a pretreatment composition containing (a) a Group IIIB metal, a Group IVB metal, or combinations thereof; and (b) a compound containing at least six phosphorus-containing acid groups or salts thereof; wherein the molar ratio of (a) to (b) is at least 3:1. Also disclosed are methods of treating a substrate with the pretreatment composition and substrates treated with the pretreatment composition.

Abstract: The present invention is directed towards an aqueous alkaline cleaner composition comprising: an iron cation, a molybdenum cation, a cobalt cation, or combinations thereof; and an alkaline component; wherein the pH of the aqueous alkaline composition is at least 10, and the aqueous alkaline composition includes no more than 50 ppm of phosphate. Also disclosed are treatment systems comprising an aqueous alkaline composition for treating at least a portion of a substrate, and a pretreatment composition for treating at least a portion of a substrate. Also disclosed are substrates treated according to the disclosed treatment systems.

Abstract: Disclosed herein is a system for treating a substrate. The system includes a pretreatment composition for treating at a least a portion of the substrate, the pretreatment composition comprising a Group IVB metal cation; and a sealing composition for treating at least a portion of the substrate treated with the pretreatment composition, the sealing composition comprising a Group IA metal cation. Also disclosed are methods of treated a substrate with the system. Also disclosed are substrates treated with the system and method.

Abstract: Disclosed is a system for treating a surface of a multi-metal article. The system includes first and second compositions for contacting at least a portion of the surface. The first composition includes phosphate ions and zinc ions and is substantially free of fluoride. The second composition includes a lanthanide series metal cation and an oxidizing agent. Methods of treating a multi-metal article using the system also are disclosed. Also disclosed are substrates treated with the system and method.

Abstract: Disclosed is a pretreatment composition containing (a) a Group IIIB metal, a Group IVB metal, or combinations thereof; and (b) a compound containing at least six phosphorus-containing acid groups or salts thereof; wherein the molar ratio of (a) to (b) is at least 3:1. Also disclosed are methods of treating a substrate with the pretreatment composition and substrates treated with the pretreatment composition.

Abstract: A pretreatment composition and a method for pretreating a metal substrate is disclosed. The method comprises: (a) pretreating the metal substrate with a Group IV(b) metal ion, followed by (b) treating the substrate of (a) with a composition comprising: (i) a Group IV(b) metal ion, (ii) a copper ion, (iii) a fluoride ion, and (iv) an organophosphonic acid, followed by (c) electrodepositing a cationic electrodepositable composition on the metal substrate.