A method for imparting absorption properties of ultraviolet light transmitters polymer typically ultraviolet light of ethylenically unsaturated monomers.

摘要

Ultraviolet light absorbing polymer compositions comprising copolymers of 2-Hydroxy-5-acrylyloxyphenyl -2H-benzotriazoles with one or more other monomers copolymerizable therewith, particularly acrylic monomers are useful in the manufacture of occular devices, particularly intraoccular lenses and contact lenses. The benzotriazole monomers are prepared from the corresponding intermediate phenyl alcohols 2 min -Hydroxy -5 min - acrylyloxyphenyl -2H-benzotriazoles.