Magnetic multilayer pigment flake and coating composition
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United States of America Patent
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Dec 19, 2017
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app pub date -
Oct 18, 2016
filing date -
Jun 30, 2010
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Abstract
The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.
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