Functionalized nanoparticles

摘要

The present invention discloses functionalized nanoparticles comprising on the surface a covalently bound radical of the formula I
wherein
the nanoparticles are SiO 2 Al 2 O 3 or mixed SiO 2 and Al 2 O 3 nanoparticles,
and wherein the general symbols are as defined in claim 1. These functionalized nanoparticles are for example useful as stabilizers and/or compatibilizers in organic materials, or as photoinitiators in pre-polymeric or pre-crosslinking formulations, or as reinforcer of coatings and improver of scratch resistance in coating compositions for surfaces.