Optical elements containing nanoscaled particles and having an embossed surface and process for their preparation

摘要

PCT No. PCT/EP92/02094 Sec. 371 Date Aug. 3, 1994 Sec. 102(e) Date Aug. 3, 1994 PCT Filed Sep. 11, 1992 PCT Pub. No. WO93/06508 PCT Pub. Date Apr. 1, 1993Optical elements comprising a substrate and a transparent composite material layer having an embossed surface, the composite material comprising a polymer matrix having incorporated therein inorganic components in the form of nanoscaled particles, and methods of preparation thereof which comprise mixing a polymer precursor with a sol of nanosealed particles in an organic solvent and a polymerizable initiator, applying the mixture to a substrate to form a coating, and embossing the coating while simultaneously curing it.