Coated pigment

US12559630B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12559630-B2
Application numberUS-202118015574-A
CountryUS
Kind codeB2
Filing dateJul 7, 2021
Priority dateJul 14, 2020
Publication dateFeb 24, 2026
Grant dateFeb 24, 2026

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

The invention claimed is: 1 . 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. 2 . The coated object according to claim 1 , wherein the light-transmitting material is at least one selected from the group consisting of silica, alumina, glass, mica and a resin. 3 . The coated object according to claim 1 , wherein the metal flakes are composed of at least one selected from the group consisting of aluminum, copper, nickel, tin, titanium, zinc, an alloy containing any one or more of these metals, and a stainless steel. 4 . A cosmetic material containing the coated object according to claim 1 . 5 . The coated object according to claim 2 , wherein the metal flakes are composed of at least one selected from the group consisting of aluminum, copper, nickel, tin, titanium, zinc, an alloy containing any one or more of these metals, and a stainless steel.

Assignees

Inventors

Classifications

  • containing inorganic ingredients · CPC title

  • General cosmetic use · CPC title

  • Preparations for care of the skin · CPC title

  • Layered structure · CPC title

  • Interference pigments, e.g. Iridescent, Pearlescent · CPC title

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Frequently asked questions

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What does patent US12559630B2 cover?
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.
Who is the assignee on this patent?
Toyo Aluminium Kk
What technology area does this patent fall under?
Primary CPC classification C09C3/063. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Feb 24 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).