Process for producing coating from multi component coating composition
OwnerLaura Ann Lewin, James William O'Neil +2inventors
InventorsLaura Ann Lewin, James William O'Neil, Carl Brent Douglas, Denise Elizabeth Fiori
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Abstract
The present invention is directed to a process for producing a coating from a multi component coating composition that includes a crosslinkable, crosslinking and catalyst components. The catalyst component includes organo zinc cocatalysts, organo tin catalysts, and carboxylic acids. The catalyst component provides long pot life to a pot mix obtained by mixing the aforementioned with components while simultaneously providing a coating resulting from the pot mix with desired coating properties, such as desired early hardness of a coating resulting from a relatively low temperature baking cure cycle.
Claims15
A process for producing a coating on a substrate, said process comprising:
- (a) mixing a crosslinkable component, a crosslinking component and a catalyst component of a coating composition to form a pot mix, wherein said crosslinkable component comprises one or more crosslinkable polymers;
- wherein said crosslinking component comprises one or more polyisocyanates having two or more isocyanate groups and;
- wherein said catalyst component consists essentially of one or more organo zinc cocatalysts, one or more organo tin catalysts, and one or more C1 to C8 carboxylic acids;
- (b) applying a layer of said pot mix over said substrate;
- and
- (c) curing said layer into said coating on said substrate.
Dependencies are inferred from the claim text.