HOLOGRAPHIC PHOTOPOLYMER DATA RECORDING MEDIA AND METH OF HOLOGRAPHICALLY READING AND STORING DATA

摘要

A photopolymer data recording media includes (1) a substrate layer, (2) a capping layer, and (3) a photopolymerizable layer between the substrate layer and the capping layer comprising (a) an actinic monomer, (b) a polyurethane binder comprising the reaction product of (i) a polyisocyanate having at least two reactive isocyanate groups pendant from a primary carbon atom and a viscosity of less than about 1,000 mPa.s, and (ii) a polyol, and (c) a photosensitive initiator.