Patent ID: 7399793

Claim:
A UV radiation curable clearcoat coating composition consisting essentially of: at least one compound selected from A) and B) wherein: A) comprises 0.1% to 99.9% by weight of one or more compounds selected from the group consisting of acrylate and methacrylate monomers having from 1 to 6 free-radically polymerizable groups per molecule and mixtures thereof; and B) comprises 0.1 to 99.9% by weight of one or more compounds containing two or more ethylenically unsaturated, free radically polymerizable groups per molecule selected from the group consisting of urethane acrylates and methacrylates, polyester acrylates and methacrylates, melamine, acrylic amine, cellulose based acrylates and methacrylates and unsaturated polyesters and mixtures thereof; and further comprising: C) from 0.1 to 10.0% by weight of one or more photoinitiators; D) from 0 to 70% of compounds selected from the group consisting of solvents; and E) from 1 to 15% of compounds selected from the group consisting of photosynergists, ultraviolet absorbers, hindered amine light stabilizers, adhesion promoters, flow aids, wetting aids, rheology modifiers and mixtures thereof; wherein the coating is cured with a UV source providing a UV radiation with UVV:UVA of 1:1 or less, UVB:UVA of 1:1 or less, and UVC:UVA of 1:1 or less; further wherein the coating is cured with an irradiance level between 0.01 and 200 mW/cm 2 for a time of between 1 second and 30 minutes to obtain a non-tacky surface.