G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 1/10 (2006.01) C03C 17/32 (2006.01) C03C 17/34 (2006.01) G02B 1/04 (2006.01) G02C 7/00 (2006.01)
Patent
CA 2706669
The optical article according to the invention is characterized by the fact that it comprises, on one of its main surfaces, an outer hydrophobic and/or oleophobic coating, a dry temporary layer of a composition comprising, preferably consisting of, one or more aliphatic thermoplastic polyurethanes having a polyether or polyester backbone directly deposited onto the outer hydrophobic and/or oleophobic coating. Use in ophthalmic lenses.
L'article d'optique selon l'invention se caractérise par le fait qu'il comporte sur une de ses surfaces principales un revêtement externe hydrophobe et/ou oléophobe, une couche temporaire séchée d'une composition comprenant, de préférence consistant en, un ou plusieurs polyuréthanes thermoplastiques aliphatiques à squelette polyéther ou polyester directement déposée sur le revêtement externe hydrophobe et/ou oléophobe. Application aux lentilles ophtalmiques.
Habassi Chefik
Koscher Matthieu
Essilor International (compagnie Generale D'optique)
Gowling Lafleur Henderson Llp
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