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US 12,559,630 B2Granted
Coated pigment
AssigneeToyo Aluminium Kabushiki Kaisha
InventorsSachiko Suzuki, Hideaki Minamiyama
Life of this patent
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Abstract
A coated pigment is used which includes a base of which at least the surface is composed of a light-transmitting material; and a magnetite layer coating the base, and having a crystal lattice constant of not less than 8.35 Å. At least one selected from the group consisting of silica, alumina, glass, mica and a resin is usable as the light-transmitting material.
Claims5
A coated object comprising a base object;
- and a resin composition containing a coated pigment, comprising:
- wherein the coated pigment comprises:
- a base comprising metal flakes coated with a light-transmitting material;
- a magnetite layer coating the base, and having a crystal lattice constant of not less than 8.35 Å;
- and
- on the magnetite layer, a protective layer composed of any one of a metal hydroxide, a metal oxide hydrate, or a combination thereof.
3 more elements
Dependencies are inferred from the claim text.