Abstract: A high chroma effect pigment includes a platelet substrate and an optical coating formed on the platelet substrate. The optical coating includes a first high refractive index layer, a second high refractive index layer on the first high refractive index layer, and a diffused third material having a range of diffusion between 100% to partial diffusion in the first high refractive index layer, the second high refractive index layer, or both the first and the second high refractive index layers. The first and second high refractive index layers independently have a refractive index of about >1.65. The diffused third material is SiO2 or a metal oxide is different than the first and second high refractive index layers.

Abstract: This invention relates to synthetically derived zinc hectorite platelets, of superior platelet diameter, effect pigments comprising such synthetically derived platelets and methods of forming said substrates. More specifically the disclosure describes an improved hydrothermal synthesis of zinc hectorite suitable as a platelet for interference pigments, barrier and flame retardant applications.

Abstract: A high chroma effect pigment includes a platelet substrate and an optical coating formed on the platelet substrate. The optical coating includes a first high refractive index layer, a second high refractive index layer on the first high refractive index layer, and a diffused third material having a range of diffusion between 100% to partial diffusion in the first high refractive index layer, the second high refractive index layer, or both the first and the second high refractive index layers. The first and second high refractive index layers independently have a refractive index of about >1.65. The diffused third material is SiO2 or a metal oxide is different than the first and second high refractive index layers.

Abstract: This invention relates to megakalsilite platelets, methods of hydrothermally forming said platelets and the megakalsilite platelets obtainable via the disclosed hydrothermal method. More specifically the disclosure describes an improved hydrothermal synthesis of megakalsilite platelets, which are suitable as platelet for interference pigments, and in barrier and flame retardant applications.

Abstract: This invention relates to synthetically derived zinc phlogopite platelets, of superior aspect ratio, effect pigments comprising such synthetically derived platelets and methods of forming said platelets. More specifically the disclosure describes an improved hydrothermal synthesis of zinc phlogopite suitable as a platelets for interference pigments, barrier and flame retardant applications.

Abstract: This invention relates to synthetically derived zinc phlogopite substrates, of superior aspect ratio, effect pigments comprising such synthetically derived substrates and methods of forming said substrates. More specifically the disclosure describes an improved hydrothermal synthesis of zinc phlogopite suitable as a substrate for interference pigments, barrier and flame retardant applications.

Abstract: This invention relates to a synthetically derived zinc phlogopite platelets, of superior platelet diameter, effect pigments comprising such synthetically derived platelets and methods of forming said substrates. More specifically the disclosure describes an improved hydrothermal synthesis of zinc phlogopite suitable as a platelets for interference pigments, barrier and flame retardant applications.