CORE/SHELL PARTICLES COMPRISING A TITANIUM DIOXIDE CORE

摘要

The disclosure provides a process for generating air voids around particles comprising: attaching guest particles onto host particles through covalent or non-covalent bonding to form a host-guest complex; treating the host-guest complex with a layer of a shell material selected from inorganic oxides or inert polymers to form a shell; and removing the guest particles. These particles are useful as hiding or opacifying agents in coating and molding compositions, plastic products and laminates.