| 摘要 |
Disclosed is an optical article comprising a substrate coated with a coating possessing silanol groups on its surface, an antifog precursor coating comprising polyoxyalkylene, and a antifog surfactant composition of formula (CF 2)y(CH2-CH20)x+1H, wherein wherein x is an integer ranging from 1 to 14 and Y is an integer lower than or equal to 10. Also disclosed is a method of imparting antifog properties to an optical article by applying the coatings and compositions defined above to at least one portion of said articles surface. The surfactant is applied to the surface as a liquid composition which temporality adsorbs to the optical articles surface and imparts antifog properties to said article. |
