Patent ID: 7862886

Claim:
An optical film comprising a substrate and a layer, the layer comprising a cured object of a composition which comprises a polymerizable compound having an ethylenically unsaturated group, and at least one of: a hydrolyzate of at least one organosilane compound having a directly silicon-bonded hydroxyl or hydrolyzable group; or a partial condensate thereof, and further comprises a compound having a free-radical photopolymerization or heat polymerization initiator bonded to an organosilane wherein said free-radical photopolymerization initiator which is bonded to an organosilane comprises an acetophenone, benzoin, benzophenone, phosphine oxide, ketal, anthraquinone, thioxanthone, azo, peroxide, 2,3-dialkyldione, disulfide, fluoroamine, aromatic sulfonium or active halogen group, and wherein said free-radical heat polymerization initiator which is bonded to an organosilane comprises an organic or inorganic peroxide or an organic azo or diazo group.