Resistant to organic solvents and water, thermally, oxidatively and hydrolytically stable, radiation-resistant coatings for optical fibres, coated optical fibres and processes for their manufacture

摘要

Ultraviolet radiation-curable primary coating compositions for optical fibers are disclosed. The primary coatings comprise a polyether polyol-based reactively terminated aliphatic urethane oligomer; one or more diluent monomers terminated with at least one end group capable of reacting with the reactive terminus of the oligomer; an organofunctional silane adhesion promoter; and an optical photoinitiator. Also disclosed are optical fibers coated with the coatings of the invention, and processes for preparing same.