| abstract |
A scratch resistant coating for peroxide curable urethane elastomers comprises a radiation curable composition including at least one polyfunctional monomer having three or more acryloloxy groups per molecule, preferably five or more acryloloxy groups per molecule, and at least one N-vinyl imido group containing monomers. The coating is applied to at least one mold surface and the mold is closed for receiving the urethane elastomer. Following curing of the urethane elastomer, a coated, molded product is obtained which has improved scratch and solvent resistant properties on the surface or surfaces of the mold to which the in-mold coating was applied. The coating composition in combination with the elastomer, and the method disclosed in the present invention are especially well suited for coating plastic, optically clear lenses, i.e., those to be used in eye glasses. |