STABILIZED MONOMER DISPERSION CONTAINING INORGANIC OXIDE NANOPARTICLES WITH HIGH REFRACTIVE INDEX AND ITS PREPARATION

摘要

The present invention relates to a stabilized monomer dispersion containing inorganic oxide nanoparticles with high refractive index in which the refractive index of the inorganic oxide nanoparticles is greater than 1.65 and the average particle size of the high refractive inorganic oxide nanoparticles ranges from 1 to 100 nm and its content is in a range of from 1.0% by weight to 10.0% by weight based on the total weight of the monomer dispersion. The present invention also relates to a process for preparing the stabilized monomer dispersion containing high refractive inorganic oxide nanoparticles.

主权项

1. A process for preparing a stabilized monomer dispersion containing inorganic oxide nanoparticles with a high refractive index greater than 1.65, the process comprising the steps of:
condensing and then hydrolyzing an alkoxide precursor corresponding to the inorganic oxide in a reactive monomer serving as a solvent in the presence of an chelating agent and water at a temperature of from 0 to 50° C. to produce a dispersion consisting of the monomer and inorganic oxide nanoparticles dispersed therein, wherein the equivalent ratio of the water to the alkoxide is equal to or less than 3, and the equivalent ratio of the chelating agent to the alkoxide is at least 2.