Patent ID: 6572932
Filing Date: 2003-06-03
Classification: C08F

Abstract:
A method of manufacturing a surface covering product having a differential gloss controlled wear layer, comprising the steps of:coating a substrate with a first layer of an ultraviolet radiation curable coating composition comprised of: a ultraviolet curable, oxygen inhibited, unsaturated resin composition, a flatting agent; at least one radiation activated, free-radical generating photoinitiator, and optionally, a hard particulate material; partially curing the first layer by irradiating the coated substrate with a first peak irradiance ultraviolet radiation having a spectral distribution from 200 nm to 400 nm in the presence of oxygen to form a coated surface region; applying a second layer of the ultraviolet radiation curable coating composition over at least a portion of the surface region; and further curing the partially cured first layer and curing the second layer by irradiating the partially cured and coated substrate with a second peak irradiance ultraviolet radiation having an irradiance higher than the first peak irradiance and having a spectral distribution from 200 nm to 400 nm in an inert atmosphere to form a surface region having at least two different gloss levels.