Optical article comprising an external water- and/or oil-repellent coating coated with a temporary coating

1. An optical article comprising on one of the main surfaces thereof an external water- and/or oil-repellent coating, wherein a temporary coat of a dried polyurethane latex-based composition has been directly deposited onto the external water- and/or oil-repellent coating.

2. The optical article of claim 1 , wherein the external water- and/or oil-repellent coating has a surface energy lower than or equal to 14 mJ/m 2 .

3. The optical article of claim 2 , wherein the external water- and/or oil-repellent coating has a surface energy lower than or equal to 12 mJ/m 2 .

4. The optical article of claim 1 , wherein the temporary coat has a surface energy higher than or equal to 15 mJ/m 2 .

5. The optical article of claim 4 , wherein the temporary coat has a surface energy higher than or equal to 30 mJ/m 2 .

6. The optical article of claim 4 , wherein the temporary coat has a surface energy polar component lower than 26 mJ/m 2 .

7. The optical article of claim 1 , wherein the temporary coat has a thickness of 10 to 40 μm.

8. The optical article of claim 1 , wherein the temporary coat has a thickness of 15 to 20 μm.

9. The optical article of claim 1 , wherein the temporary coat has an elongation at break equal to or lower than 200%.

10. The optical article of claim 9 , wherein the temporary coat has an elongation at break equal to or lower than 150%.

11. The optical article of claim 1 , wherein the polyurethane latex-based composition comprises at least one polyurethane latex and at least one poly(meth)acrylic latex.

12. The optical article of claim 11 , wherein the poly(meth)acrylic latex is a polyacrylic latex.

13. The optical article of claim 11 , wherein the polyurethane latex-based composition comprises 0.1 to 10% by weight of a polyacrylic latex.

14. The optical article of claim 13 , wherein the polyurethane latex-based composition comprises 2 to 6% by weight of a polyacrylic latex.

15. The optical article of claim 1 , wherein the polyurethane latex-based composition has a solid content of 25 to 55% by weight of the latex-based composition total weight.

16. The optical article of claim 15 , wherein the polyurethane latex-based composition has a solid content of 25 to 45% by weight of the latex-based composition total weight.

17. The optical article of claim 1 , wherein the polyurethane latex-based composition comprises at least one surfactant.

18. The optical article of claim 17 , wherein the surfactant(s) are from 0.5 to 10% by weight of the polyurethane latex-based composition total weight.

19. The optical article of claim 1 , wherein the temporary coat is a strippable film.

20. The optical article of claim 1 , wherein the external water- and/or oil-repellent coating is deposited onto a mono- or multilayered antireflective coating.

21. The optical article of claim 1 , further defined as an ophthalmic lens.