Patent application number | Description | Published |
20090045065 | STABILIZING AQUEOUS ANIONIC RESINOUS DISPERSIONS WITH CHELATING AGENTS - Stabilization of aqueous resinous dispersions containing a pigment of a divalent metal such as strontium chromate is disclosed. Stabilization is achieved by incorporating a chelating agent in the dispersion. | 02-19-2009 |
20090045071 | ELECTRODEPOSITION COATINGS FOR USE OVER ALUMINUM SUBSTRATES - A process for applying a coating on aluminum substrates by anionic electrodeposition of a phosphated epoxy resin made by phosphating a polyepoxide with both phosphoric acid and an organophosphonic acid and/or an organophosphinic acid. The coating has a reduced tendency to form pinholes. | 02-19-2009 |
20090236231 | ELECTRODEPOSITION OF DIELECTRIC COATINGS ON SEMICONDUCTIVE SUBSTRATES - A method includes: immersing a semiconductive substrate in an electrodeposition composition, wherein at least 20 percent by weight of resin solids in the composition is a highly cross-linked microgel component, and applying a voltage between the substrate and the composition to form a dielectric coating on the substrate. A composition for use in electrodeposition includes a resin blend, a coalescing solvent, a catalyst, water, and a highly cross-linked migrogel, wherein at least 20 percent by weight of resin solids in the composition is the highly cross-linked microgel. Another composition for use in electrodeposition includes a surfactant blend, a low ion polyol, phenoxypropanol, a catalyst, water, a flexibilizer, and a highly cross-linked migrogel, wherein at least 20 percent by weight of resin solids in the composition is the highly cross-linked microgel. | 09-24-2009 |
20100243108 | METHOD FOR TREATING AND/OR COATING A SUBSTRATE WITH NON-CHROME MATERIALS - The present invention is directed to a method for coating a substrate comprising: (a) applying a caustic cleaner onto at least a portion of the substrate; (b) rinsing at least a portion of the substrate that was subjected to step (a) with water; (c) applying an acid cleaner onto at least a portion of the caustically cleaned substrate; (d) rinsing at least a portion of the substrate that was subjected to step (c) with water; and (e) applying a conversion coating comprising zirconium onto at least a portion of the acid cleaned substrate; and wherein at least one of the materials used in steps (c) and (e) is substantially chrome free. The present invention is also directed to a substrate, such as an aluminum substrate, that has been coated using the aforementioned method. | 09-30-2010 |
20120006683 | ELECTRODEPOSITION OF DIELECTRIC COATINGS ON SEMICONDUCTIVE SUBSTRATES - A composition for use in electrodeposition includes a resin blend, a coalescing solvent, a catalyst, water, and a highly cross-linked migrogel, wherein at least 20 percent by weight of resin solids in the composition is the highly cross-linked microgel. Another composition for use in electrodeposition includes a surfactant blend, a low ion polyol, phenoxypropanol, a catalyst, water, a flexibilizer, and a highly cross-linked migrogel, wherein at least 20 percent by weight of resin solids in the composition is the highly cross-linked microgel. | 01-12-2012 |
20130289273 | METHODS FOR PRODUCING 1,5,7-TRIAZABICYCLO[4.4.0]DEC-5-ENE BY REACTION OF A DISUBSTITUTED CARBODIIMIDE AND DIPROPYLENE TRIAMINE - Methods for producing 1,5,7-triazabicyclo[4.4.0]dec-5-ene using a disubstituted carbodiimide, dipropylene triamine and optionally an ethereal solvent and/or an alcohol are disclosed. Use of 1,5,7-triazabicyclo[4.4.0]dec-5-ene produced by this method in an electrodepositable coating composition, and electrophoretic deposition of such coating onto a substrate to form a coated substrate, are also disclosed. | 10-31-2013 |
20140255702 | ELECTRODEPOSITABLE FILM-FORMING COMPOSITIONS CAPABLE OF FORMING STRATIFIED FILMS, AND THEIR USE IN COMPACT PROCESSES - An electrodepositable film-forming composition is provided, comprising a resinous phase dispersed in an aqueous medium. The resinous phase comprises: (1) an ungelled active hydrogen-containing, cationic resin derived from a polyepoxide; (2) a cationic acrylic resin containing urethane functional groups; and (3) an at least partially blocked polyisocyanate curing agent. Also provided is a coated metal substrate comprising: A) a metal substrate having at least one coatable surface, and B) a cured coating layer deposited on at least one surface of the substrate and having a coating/air interface and a coating/substrate interface, wherein the cured coating layer is deposited from the electrodepositable film-forming composition described above. Further provided is a process for coating an electroconductive substrate, comprising electrophoretically depositing on the substrate the curable, electrodepositable coating composition described above. | 09-11-2014 |
20140262786 | PHENOLIC ADMIX FOR ELECTRODEPOSITABLE COATING COMPOSITION CONTAINING A CYCLIC GUANIDINE - The present invention is directed to an electrodepositable coating composition comprising a reaction product of an epoxy functional polymer and a cyclic guanidine, and a source of unreacted phenol, wherein the electrodepositable coating composition has a columbic usage of less than 100 coulombs/gram when deposited on a conductive substrate at a current density of ≦1.5 mAmps/cm | 09-18-2014 |