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Abstract

A UV curable composition that contains a UV absorber and that is particularly suitable for coating plastic ophthalmic lenses includes (a) 20% to 80% of a first acrylated aliphatic urethane; (b) 5% to 40% of a monofunctional acrylate; (c) (i) 5% to 60% of a second acrylated aliphatic urethane or (ii) 5% to 60% of a multifunctional acrylate or (iii) a combination (i) and (ii); (d) 1% to 30% of a functionalized colloidal metal oxide; (e) 2% to 15% of an ultraviolet absorber; (f) 1% to 20% of a photoinitiator; and (g) a solvent, wherein the percentages are by weight. The cured composition provides a UV blocking film with improved abrasion and excellent impact resistance as well as protection against environmental and chemical agents. The films have excellent compatibility and adhesion to AR coatings that are applied thereon.

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First Claim