| 摘要 |
An optical article comprising (a) a transparent optical substrate and (b) a transparent coating, said transparent coating being the outermost coating of the optical article and consisting essentially of - a polythiol - ene matrix obtained by curing a liquid monomer mixture comprising at least one polyfunctional thiol and at least one polyfunctional allyl monomer, said cured polythiol - ene matrix having a glass transition temperature comprised in the range of from 40 °C to 70 °C, and - from 0.5 to 7 % by weight of conductive mineral colloids homogeneously dispersed therein. It is also drawn to a method for preparing such an optical article and to a method for repairing scratches on such an optical article by heating. |
