Importance

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Abstract

Disclosed herein are radiation curable coating compositions including a mixture of crosslinkable polymers or oligomers in combination with at least one hydrophobic unsaturated monomer and at least 20 wt. % of hydrophilic unsaturated monomers. The coating of various substrates, in particular plastic substrates, with these coating compositions results in significantly improved surface roughness without the formation of undesired film defects. The coating compositions can be overcoated with commonly known coating compositions to produce multilayer coatings having an improved adhesion, especially wet adhesion, and a high optical quality. Further disclosed herein are a method for forming a coating onto an object and a coated object prepared according to the method. Additionally disclosed herein is a method of using the radiation curable coating composition to improve the surface roughness of plastic substrates, in particular plastic substrates produced by additive manufacturing.

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First Claim