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US 2011/0214992 A1Published application
Electrodepositable coating composition comprising a bismuth salt and a stabilizing compound
AssigneePPG Industries Ohio, Inc.
InventorsAlan J. Kaylo, Kevin J. Dufford, Steven D. Perrine, Michael J. Pawlik
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Abstract
The present invention is directed to an electrodepositable coating composition comprising a bismuth salt and a stabilizing agent, and wherein the molar ratio of elemental bismuth to the stabilizing agent is not greater than 1:0.25
Claims20
An electrodepositable coating composition comprising a bismuth salt and a stabilizing agent and wherein the molar ratio of elemental bismuth to the stabilizing agent is not greater than 1:0.25.
A method for making an electrodepositable coating composition comprising:
- (i) a first component, (ii) a second component, and (iii) a third component;
- the method comprising:
- dispersing components (i), (ii), and (iii), into an aqueous solution;
- wherein component (i) comprises a film-forming polymer, a curing agent that is capable of reacting with the film-forming polymer, and, optionally, a stabilizing agent;
- wherein component (ii) comprises a water-dispersible grind resin, a pigment, and, optionally, a stabilizing agent;
- and wherein component (iii) comprises a water-dispersible grind resin, and, optionally, a stabilizing agent;
- and wherein the molar ratio of elemental bismuth to stabilizing agent in the electrodepositable coating composition is not greater than 1:0.25;
- wherein one or more of components (i), (ii), and (iii) comprises a bismuth salt;
- and wherein one or more of components (i), (ii), and (iii) comprises the stabilizing agent.
6 more elements
Dependencies are inferred from the claim text.