Colored metallic pigment

Patent metadata

Field	Value
Publication number	US-10106685-B2
Application number	US-201515508004-A
Country	US
Kind code	B2
Filing date	Jul 2, 2015
Priority date	Sep 26, 2014
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

A colored metallic pigment according to the present invention is a colored metallic pigment including at least a metallic pigment, an amorphous silicon oxide film layer formed on a surface of the metallic pigment, a metallic-particle-supporting layer formed on a surface of the amorphous silicon oxide film layer, and metallic particles formed on a surface of the metallic-particle-supporting layer, characterized in that the metallic-particle-supporting layer is formed of one or both of a metal layer and a metal oxide layer composed of a metal oxide other than silicon oxide, the metallic particles are formed to directly cover a part of the surface of the metallic-particle-supporting layer, and the amorphous silicon oxide film layer has a thickness of more than 500 nm.

First claim

The invention claimed is:

1. A colored metallic pigment comprising at least:
a metallic pigment;
an amorphous silicon oxide film layer formed on a surface of the metallic pigment;
a metallic-particle-supporting layer formed on a surface of the amorphous silicon oxide film layer; and
metallic particles formed on a surface of the metallic-particle-supporting layer,
the metallic-particle-supporting layer being formed of one or both of a metal layer and a metal oxide layer composed of a metal oxide other than silicon oxide, the metallic-particle-supporting layer having a thickness of less than or equal to 10 nm,
the metallic particles being formed to directly cover a part of the surface of the metallic-particle-supporting layer,
the amorphous silicon oxide film layer having a thickness of more than 500 nm.

2. The colored metallic pigment according to claim 1 , wherein
the amorphous silicon oxide film layer has a thickness within a range of more than 500 nm and less than or equal to 1000 nm, and
the metallic particles have an average particle size of less than or equal to 50 nm.

3. The colored metallic pigment according to claim 1 , wherein
the metal layer contains at least one selected from the group consisting of Sn, Pd, Pt, and Au, and
the metal oxide layer contains an oxide of at least one element selected from the group consisting of Mg, Sn, Zn, Co, Ni, Fe, Zr, Ti, and Ce.

4. The colored metallic pigment according to claim 1 , wherein the metallic particles contain at least one element selected from the group consisting of Cu, Ni, and Ag.

5. A resin composition containing at least a colored metallic pigment as recited in claim 1 .

6. An applied object having a resin composition as recited in claim 5 applied on a base body.

7. A cosmetic containing at least a colored metallic pigment as recited in claim 1 .

Assignees

• Toyo Aluminium Kk

Inventors

• Miyamoto Kenichi
• Nakao Takayuki
• Morimitsu Taro

Classifications

• A61Q1/02

  Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12) · CPC title

• A61K2800/621

  by inorganic compounds · CPC title

• A61Q5/00

  Preparations for care of the hair · CPC title

• C09C2200/24

  Interference pigments comprising a metallic reflector or absorber layer, which is not adjacent to the core · CPC title

• C09D201/00

  Coating compositions based on unspecified macromolecular compounds · CPC title