System und Verfahren zur Verbesserung der Haftung und der Verschleißfestigkeit mithilfe eines Vorderseitenübertragungsverfahrens zur Herstellung von mehrfach beschichteten, photochromen optischen Linsen

摘要

A novel photochromic latex formulation is provided, in one embodiment involving the addition of a polyurethane latex to a polyphasic latex, the formulation having improved adhesion qualities, in particular, adhesion onto a hard coat layer. In a preferred embodiment, the polyurethane latex is 20% by weight of the formulation. In addition, an optical article is provided having a coating including a novel photochromic latex formulation in accordance with the present invention, applied via a Front Side Transfer process.