Patent ID: 8926081
Filing Date: 2015-01-06
Classification: B41J,B41M,C08K,C09D

Abstract:
1. An inorganic nanoparticle containing overcoat composition for use in ink jet printing, comprising: a liquid vehicle, a composite latex particulate, said composite latex particulate comprising inorganic nanoparticles at least partially encapsulated by a polymer, wherein the polymer comprises polymerized monomers including a hydrophobic monomer and an acid containing monomer, the acid containing monomer being present at from 0.1 wt % to 20 wt % of the polymerized monomers, said inorganic particulates selected from the group consisting of silica, titania, alumina, zinc oxide, silicates, oxides of indium and tin, and combinations thereof, wherein the inorganic nanoparticle comprises 1 wt % to 70 wt % of the composite latex particulate, and wherein the overcoat composition when printed is transparent or translucent.