Laminated coating film structure

Patent metadata

Field	Value
Publication number	US-10052658-B2
Application number	US-201113642396-A
Country	US
Kind code	B2
Filing date	May 13, 2011
Priority date	May 18, 2010
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

One aspect of the present invention is a laminated coating film structure having a laminated coating film that renders a specific color on a coated object, wherein the laminated coating film is provided with a first layer arranged on the side close to the coated object and containing a pigment in which the mean particle diameter is ½ or more the wavelength of the specific color but 2 um or less, and a second layer arranged on the side far from the coated object and containing a pigment in which the mean particle diameter is 0.05 um or more but less than ½ the wavelength of the specific color.

First claim

The invention claimed is:

1. A laminated coating film structure, having a laminated coating film that renders a specific color on a coated object and an electrodeposited coating film, wherein
the laminated coating film is provided with:
a first layer arranged on a side close to the coated object and containing a pigment in which the mean particle diameter is ½ or more of the wavelength of the specific color but 2μm or less; and
a second layer arranged on a side far from the coated object and containing a pigment in which the mean particle diameter is 0.05 μm or more but less than ⅓ of the wavelength of the specific color,
wherein: the electrodeposited coating film is provided between the coated object and the first layer;
the first layer is in direct contact with the electrodeposited coating film;
the second layer is in direct contact with the first layer;
the first layer has a thickness of 8 to 12 μm;
the second layer has a thickness of 8 to 12 μm;
a pigment concentration of the first layer is 20 to 30% by weight;
a pigment concentration of the second layer is 10 to 30% by weight;
the specific color is rendered by both coating films of the first layer and the second layer; and
the specific color is a chromatic color.

2. The laminated coating film structure according to claim 1 , wherein a clear coating film is provided on the second layer, and
the clear coating film is in direct contact with the second layer.

3. The laminated coating film structure according to claim 1 , wherein the mean particle diameter of the pigment contained in the first layer is ½ or more of the wavelength of the specific color but 0.5 μm or less.

4. The laminated coating film structure according to claim 1 , wherein the coated object is a vehicle outer panel.

Assignees

• Yamane Takakazu
• Kubota Hiroshi
• Nakano Sakura
• Ishibashi Takako
• Mazda Motor

Inventors

• Yamane Takakazu
• Kubota Hiroshi
• Nakano Sakura
• Ishibashi Takako

Classifications

• B05D7/577

  some layers being coated "wet-on-wet", the others not · CPC title

• B05D5/061

  Special surface effect · CPC title

• B05D7/14 Primary

  to metal, e.g. car bodies (involving a chemical reaction between the metal and the coating C23) · CPC title