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: 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 herein is a system for treating a magnesium or a magnesium alloy substrate comprising: a first pretreatment composition comprising a fluorometallic acid and free fluoride in an amount of 10 ppm to 500 ppm based on total weight of the first pretreatment composition and having a pH of 1.0 to 4.0; and a second pretreatment composition comprising a lanthanide series metal, the second pretreatment composition being substantially free of peroxide. Also disclosed are methods of treating a magnesium or magnesium alloy substrate. Treated magnesium and magnesium alloy substrates also are disclosed.

Abstract: Disclosed is a sealing composition for treating a metal substrate comprising: a polyolefin component; and a colloidal layered silicate. Also disclosed is a system for treating a metal substrate comprising: a cleaner composition; and/or a pretreatment composition for treating at least a portion of the substrate, the pretreatment composition comprising a Group IVB metal; and a sealing composition for treating at least a portion of the substrate treated with the cleaner composition and/or the pretreated composition, the sealing composition comprising a polyolefin component. Also disclosed is a method of treating a substrate comprising contacting at least a portion of a surface of the substrate with any of the compositions disclosed herein or any of the systems disclosed herein.

Abstract: The invention provides an electrodepositable coating composition comprising a resinous phase dispersed in an aqueous medium, said resinous phase comprising: (1) an ungelled active hydrogen-containing, cationic salt group-containing resin; (2) an at least partially blocked polyisocyanate curing agent; and (3) a pigment component, wherein the pigment component comprises an inorganic, platelike pigment present in the resinous phase, wherein the electrodepositable coating composition contains less than 8 percent by weight of a grind vehicle, based on the total weight of solids in the electrodepositable coating composition. The invention also provides methods of improving the corrosion resistance of a metal substrate and coated substrates.

Abstract: Disclosed herein are systems and methods for treating a magnesium or a magnesium alloy substrate. The system includes a cleaning composition having a pH greater than 8.5 or a solvent, and a pretreatment composition comprising an organophosphate compound and/or an organophosphonate compound. The method includes contacting a substrate surface with the cleaning composition or the solvent, and contacting the surface with the pretreatment composition. Also disclosed are substrates treated with one of the systems or methods. Also disclosed are magnesium or magnesium alloy substrates wherein, between the air/substrate interface and 500 nm below the air/substrate interface (a) oxygen and magnesium are present in a combined amount of at least 70 atomic %; (b) carbon is present in an amount of no more than 30 atomic %; and/or (c) fluoride is present in an amount of no more than 8 atomic %, wherein atomic % is measured by XPS depth profiling.

Abstract: The invention provides a method of improving the corrosion resistance of a metal substrate. The method comprises: (a) electrophoretically depositing on the substrate a curable electrodepositable coating composition to form a coating over at least a portion of the substrate, and (b) heating the substrate to a temperature and for a time sufficient to cure the coating on the substrate. The electrodepositable coating composition comprises a resinous phase dispersed in an aqueous medium, the resinous phase comprising: (1) an ungelled active hydrogen-containing, cationic salt group-containing resin electrodepositable on a cathode; (2) an at least partially blocked polyisocyanate curing agent; and (3) a pigment component comprising an inorganic, platelike pigment having an average equivalent spherical diameter of at least 0.2 microns. The electrodepositable coating composition demonstrates a pigment-to-binder ratio of at least 0.5. The coating composition contains less than 8 percent by weight of a grind vehicle.

Abstract: Disclosed herein are systems and methods for treating a metal substrate. The system includes a first pretreatment composition comprising a fluorometallic acid and free fluoride and having a pH of 1.0 to 4.0 and a second pretreatment composition comprising a Group IVB metal or a third pretreatment comprising a lanthanide series metal and an oxidizing agent. The method includes contacting at least a portion of a surface of the substrate with the first pretreatment composition and optionally contacting at least a portion of the substrate surface with the second pretreatment composition or the third pretreatment composition. Also disclosed are substrates treated with one of the systems or methods. Also disclosed are magnesium or magnesium alloy substrates comprising a bilayer comprising a first layer comprising silicone and a second layer comprising fluoride.

Abstract: This disclosure relates to use of a conversion coating for reduction or prevention of hydrogen sulfide production in cans holding hydrogen sulfide producing liquids, such as wine. This disclosure also relates to metal cans comprising a conversion coating layer deposited on at least a portion of the inside surface of the metal can, a film-forming layer deposited on such conversion coating layer, and a hydrogen sulfide producing liquid deposited inside the metal can.

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: The present invention is directed to an aqueous curable film-forming composition comprising: (a) a film-forming component comprising an aliphatic di- or higher functional polyisocyanate; and (b) a catalyst additive comprising: (i) a catalytic organic compound comprising iron and/or tin; and (ii) a beta-diketone. The present invention is further directed to a method of controlling the rate of cure of an aqueous curable film-forming composition. The method comprises adding to the aqueous curable film-forming composition the catalyst additive described above; the aqueous curable film-forming composition comprises a film-forming component comprising an aliphatic di- or higher functional polyisocyanate. The present invention is additionally directed to a coated article comprising a cured coating layer applied on at least one surface of a substrate to form a coated substrate; wherein the cured coating layer is deposited from the aqueous curable film-forming composition described above.

Abstract: The present invention is directed to an aqueous curable film-forming composition comprising: (a) a film-forming component comprising an aliphatic di- or higher functional polyisocyanate; and (b) a catalyst additive comprising: (i) a catalytic organic compound comprising iron (II) and optionally tin; and (ii) a beta-diketone. The present invention is further directed to a method of controlling the rate of cure of an aqueous curable film-forming composition. The method comprises adding to the aqueous curable film-forming composition the catalyst additive described above; the aqueous curable film-forming composition comprises a film-forming component comprising an aliphatic di- or higher functional polyisocyanate. The present invention is additionally directed to a coated article comprising a cured coating layer applied on at least one surface of a substrate to form a coated substrate; wherein the cured coating layer is deposited from the aqueous curable film-forming composition described above.

Abstract: The invention provides a method of improving the corrosion resistance of a metal substrate. The method comprises: (a) electrophoretically depositing on the substrate a curable electrodepositable coating composition to form a coating over at least a portion of the substrate, and (b) heating the substrate to a temperature and for a time sufficient to cure the coating on the substrate. The electrodepositable coating composition comprises a resinous phase dispersed in an aqueous medium, the resinous phase comprising: (1) an ungelled active hydrogen-containing, cationic salt group-containing resin electrodepositable on a cathode; (2) an at least partially blocked polyisocyanate curing agent; and (3) a pigment component comprising an inorganic, platelike pigment having an average equivalent spherical diameter of at least 0.2 microns. The electrodepositable coating composition demonstrates a pigment-to-binder ratio of at least 0.5. The coating composition contains less than 8 percent by weight of a grind vehicle.

Abstract: The invention provides a method of improving the corrosion resistance of a metal substrate. The method comprises: (a) electrophoretically depositing on the substrate a curable electrodepositable coating composition to form a coating over at least a portion of the substrate, and (b) heating the substrate to a temperature and for a time sufficient to cure the coating on the substrate. The electrodepositable coating composition comprises a resinous phase dispersed in an aqueous medium, the resinous phase comprising: (1) an ungelled active hydrogen-containing, cationic salt group-containing resin electrodepositable on a cathode; (2) an at least partially blocked polyisocyanate curing agent; and (3) a pigment component comprising an inorganic, platelike pigment having an average equivalent spherical diameter of at least 0.2 microns. The electrodepositable coating composition demonstrates a pigment-to-binder ratio of at least 0.5. The coating composition contains less than 8 percent by weight of a grind vehicle.

Abstract: The present invention is directed to an aqueous curable film-forming composition comprising: (a) a film-forming component comprising an aliphatic di- or higher functional polyisocyanate; and (b) a catalyst additive comprising: (i) a catalytic organic compound comprising iron and/or tin; and (ii) a beta-diketone. The present invention is further directed to a method of controlling the rate of cure of an aqueous curable film-forming composition. The method comprises adding to the aqueous curable film-forming composition the catalyst additive described above; the aqueous curable film-forming composition comprises a film-forming component comprising an aliphatic di- or higher functional polyisocyanate. The present invention is additionally directed to a coated article comprising a cured coating layer applied on at least one surface of a substrate to form a coated substrate; wherein the cured coating layer is deposited from the aqueous curable film-forming composition described above.

Abstract: The invention provides a method of improving the corrosion resistance of a metal substrate. The method comprises: (a) electrophoretically depositing on the substrate a curable electrodepositable coating composition to form a coating over at least a portion of the substrate, and (b) heating the substrate to a temperature and for a time sufficient to cure the coating on the substrate. The electrodepositable coating composition comprises a resinous phase dispersed in an aqueous medium, the resinous phase comprising: (1) an ungelled active hydrogen-containing, cationic salt group-containing resin electrodepositable on a cathode; (2) an at least partially blocked polyisocyanate curing agent; and (3) a pigment component comprising an inorganic, platelike pigment having an average equivalent spherical diameter of at least 0.2 microns. The electrodepositable coating composition demonstrates a pigment-to-binder ratio of at least 0.5. The coating composition contains less than 8 percent by weight of a grind vehicle.