申请人:DIGGINS David Robert
                            
                            
                                公开号:US20100256297A1
                            
                            
                                公开(公告)日:2010-10-07
                            
                            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, polymerising 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.