OPTICAL ARTICLE COMPRISING AN ANTI-SMUDGE COATING

Optical article comprises a transparent optical substrate having a main surface and covering the main surface of the substrate, and an anti-fouling coating partially coated with a temporary overlay, where: the anti-fouling coating is obtained by hardening of a polymerizable composition comprises 55-80 wt.%, preferably 60-70 wt.% of a first constituent (A) comprising fluorinated compounds, and 45-20 wt.%, preferably 40-30 wt.% of a second constituent (B) comprising fluorinated linear compounds; and (A) and (B) comprises at least 50%, preferably 60 wt.% of the total coating. Optical article comprises a transparent optical substrate having a main surface and covering the main surface of the substrate, and an anti-fouling coating itself partially coated with a temporary overlay, where: the anti-fouling coating is obtained by hardening of a polymerizable composition comprises 55-80 wt.%, preferably 60-70 wt.% of a first constituent (A) comprising fluorinated compounds, preferably perfluorinated compounds, of which single chain end comprises at least a silanol group or silanol precursor and their mixtures, and 45-20 wt.%, preferably 40-30 wt.% of a second constituent (B) comprising fluorinated linear compounds, preferably perfluorinated compounds, of which two chain ends comprise at least a silanol group or silanol precursor and their mixtures for 100 wt.% of (A) and (B); and (A) and (B) comprises at least 50%, preferably 60 wt.% of the total coating.