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US 4,908,230 AGranted
Process for coating polycarbonates with UV curable coatings
AssigneeThe Sherwin-Williams Company
InventorJoseph E. Miller
Life of this patent
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Abstract
A process for coating polycarbonate substrates with UV curable coatings comprising cooling the UV curable coating to a temperature of below 40.degree. F., maintaining the dew point of the surrounding atmosphere such that essentially no moisture condenses on the substrate, applying the cooled coating to the substrate and curing the coating to the substrate with ultraviolet radiation.
Claims7
A process for coating polycarbonate substrates with ultraviolet radiation (UV) curable coating compositions comprising:
- (a) cooling said UV curable coating composition to a temperature below at least about 40.degree. F. while maintaining the dew point of the surrounding atmosphere such that essentially no moisture condenses on said polycarbonate substrate;
- (b) applying said cooled coating composition to the surface of said polycarbonate substrate;
- and
- (c) subjecting said coated substrate to an amount of ultra-violet radiation sufficient to cure said coating.
1 more element
Dependencies are inferred from the claim text.