| 20110058142 | Optical Article Comprising a Double-Layer Abrasion and Scratch Resistant Coating and Method for Production Thereof - The invention relates to an optical article comprising a substrate coated with an abrasion- and scratch-resistant coating composed of a lower layer and an upper layer that do adhere to each other, the upper layer and the lower layer being layers of cured upper and lower layer compositions, said upper layer composition comprising at least one organosilane, or a hydrolyzate thereof, of formula R | 03-10-2011 |
