NANOCOLORANTS - MORE THAN COLORED NANOPARTICLES

摘要

Recently we have developed a novel class of colorants combining the advantages of both classical pigments and dyestuffs, the so-called NanoColorants. By nature these are nanocomposites consisting of hydrophobic dye-stuffs molecularly dispersed and immobilized in highly crosslinked nanosized polymer particles prepared by a modified miniemulsion polymerization process. Whereas our initial development activities were focused primarily on a proper understanding of the basic polymerization process itself, and the incorporation of highly oleophilic dyestuffs, we have now extended our work to a number of other functional additives, ranging from optical brigh-teners and UV absorbers via copolymerizable fluoro-phores to all-organic opacifiers.