| 摘要 |
<p>An optical article comprising an optically transparent substrate with a main surface and, covering the main surface, an anti-smudge coating itself at least partially covered by a temporary topcoat, the anti-smudge coating being the result of the hardening of a polymerisable composition comprising: 55% to 80% by weight, preferably to by weight, of a first component A selected among fluorinated compounds, of which only one end of the chain comprises at least one silanol group or silanol precursor and their mixtures, and 45% to 20% by weight of a second component B selected among linear fluorinated compounds, preferably perfluorinated compounds, of which both ends of the chain comprise at least one silanol group or silanol precursor and their mixtures, for 100% by weight of the first component A and the second component B. The first component A and the second component B together accounting for at least 50% by weight of the total weight of the coating. Application to ophthalmic lenses.</p> |
