Método para tingir um substrato óptico e composição de revestimento que é adequada para formar uma camada de revestimento tingível resistente à abrasão em um dito substrato óptico

摘要

The present invention provides a method for tinting an optical substrate. The method includes the steps of applying a coating composition containing:•a polymerisable monomer having a polyoxyalkylene backbone containing at least four contiguous oxyalkylene units, and•an abrasion resistant agent and/or a high crosslinking polymerisable monomer to the optical substrate, polymerizing the coating composition to form an abrasion resistant coating layer, and introducing a tinting compound into the coating layer to thereby tint the optical substrate. The invention also provides a coating composition and an optical substrate that is tinted according to the method of the invention.