Particles with opalescent effect
OwnerGuoyi Fu, Diane Lewisinventors
Life of this patent
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Abstract
The invention relates to particles with opalescent effect-especially 3-D structural color pigments-based on solid colloidal crystals of monodispersed spheres and the manufacturing processes suitable for large-scale production of such solid colloidal crystal products. The particles with opalescent effect contain a sphere based crystal structure (or super-lattice) built up by monodisperse spheres and one or more secondary types of much smaller colloidal particles occupying partially or completely the empty spaces between the monodisperse spheres.
Claims17
Particles with opalescent effect contain a sphere based crystal structure (or super-lattice) built up by monodisperse spheres and one or more secondary types of much smaller colloidal particles occupying partially or completely the empty spaces between the monodisperse spheres.
Method of manufacturing thin layer (flaky) crystals of monodisperse spheres characterized in, that a substrate coating technology is used.
Dependencies are inferred from the claim text.