DIFFRACTIVE EFFECT PIGMENTS HAVING A REFLECTIVE CORE AND SEMICONDUCTOR COATINGS
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United States of America
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Mar 6, 2025
app pub date -
Dec 6, 2022
filing date -
Dec 6, 2022
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Abstract
Disclosed herein is a flaky diffractive effect pigment having a diffractive structure and comprising a flake of a highly reflective material having a first major interface and opposed to this first interface a second major interface, and at least one side surface and directly adjacent on one or of both of these major interfaces a layer of a semiconducting material having a bandgap of 0.7 to 2.5 eV. The diffractive effect pigment may be further coated with a coating which is optically non-active in the visible wavelength region.
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