- OPTICAL ARTICLE COMPRISING A SURFACTANT-BASED TEMPORARY ANTIFOG COATING WITH AN IMPROVED DURABILITY

摘要

The present invention relates to an optical article comprising a substrate coated with a precursor coating of an antifogging coating, preferably a coating comprising a silanol group on the surface, and a direct contact with such a coating, said precursor coating preferably comprising 10 ° and an absolute contact angle with water less than 50 °; Obtained by grafting at least one organosilane compound having at least one hydrolyzable group containing at least one silicon atom and one polyoxyalkylene group; (CF ₂ ) _y - (CH ₂ --CH ₂ O) _{x + 1} H (VIII) wherein x is an integer of from 1 to 10, preferably from 1 to 10, in order to form an anti- (VIII), wherein y = 6, represents at least 90% by weight based on the weight of the compounds of formula (VIII) present in the composition. Of a surfactant-containing composition.