Stain disappearing laminate, and image display device and automobile component using said stain disappearing laminate

Patent metadata

Field	Value
Publication number	US-10815382-B2
Application number	US-201616339618-A
Country	US
Kind code	B2
Filing date	Oct 7, 2016
Priority date	Oct 7, 2016
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A stain disappearing laminate of the present invention comprises a sebum absorption and diffusion layer 3 and a sebum attachment inhibition layer 2 laminated on a base material in this order. The sebum attachment inhibition layer 2 repels sebum 5 and reduces attachment of the sebum, as well as allows attached sebum to pass through to the sebum attachment inhibition layer side, and the sebum absorption and diffusion layer 3 absorbs the sebum 5 passed through the sebum attachment inhibition layer 2 and diffuses the sebum within the sebum absorption and diffusion layer itself.

First claim

The invention claimed is:

1. A stain disappearing laminate comprising:
a laminated layer structure including a sebum absorption and diffusion layer comprising a polymer material with a three-dimensional network structure containing silicone elastomer, and a sebum attachment inhibition layer formed with a fluorine-containing compound, laminated on a base material,
wherein the laminated layer structure has a laminate order of the base material, the sebum absorption and diffusion layer, and the sebum attachment inhibition layer,
wherein the sebum attachment inhibition layer has a thickness of 15 nm or less, and repels sebum and reduces attachment of sebum, as well as allows attached sebum to pass through to a sebum absorption and diffusion layer side, and
wherein the sebum absorption and diffusion layer absorbs the sebum passed through the sebum attachment inhibition layer and diffuses the sebum within the sebum absorption and diffusion layer itself.

2. The stain disappearing laminate according to claim 1 , wherein a surface free energy of the sebum attachment inhibition layer is within a range of 12 to 20 mJ/m 2 .

3. The stain disappearing laminate according to claim 2 , wherein a surface free energy of the sebum absorption and diffusion layer is greater than a surface free energy of the sebum attachment inhibition layer.

4. The stain disappearing laminate according to claim 3 , wherein a surface free energy of the sebum absorption and diffusion layer is in a range of 18 to 50 mJ/m 2 .

5. The stain disappearing laminate according to claim 1 , wherein the sebum attachment inhibition layer comprises a film having a gap, and
a portion of the sebum absorption and diffusion layer is exposed from the gap.

6. The stain disappearing laminate according to claim 1 , wherein the sebum attachment inhibition layer is disposed such that the sebum attachment inhibition layer protrudes from the sebum absorption and diffusion layer.

7. The stain disappearing laminate according to claim 1 , wherein the sebum attachment inhibition layer is a monomolecular film derived from the fluorine-containing compound.

8. The stain disappearing laminate according to claim 1 , wherein the base material is transparent.

9. The stain disappearing laminate according to claim 1 , wherein a surface roughness (Ra) is in a range of 10 to 200 nm.

10. The stain disappearing laminate according to claim 1 , wherein a haze value (Hz) is 3% or less.

11. An image display device comprising a stain disappearing laminate on a surface of the image display device, wherein the stain disappearing laminate is the stain disappearing laminate according to claim 1 .

12. An automobile component comprising a stain disappearing laminate on a surface of the automobile component, wherein the stain disappearing laminate is the stain disappearing laminate according to claim 1 .

Assignees

• Nissan Motor

Inventors

• Noguchi Yuji
• Murakami Ryou
• Shibukawa Toshiya

Classifications

• C03C2217/77

  Coatings having a rough surface · CPC title

• C08G77/442

  containing vinyl polymer sequences · CPC title

• C03C2217/76

  Hydrophobic and oleophobic coatings · CPC title

• C08G77/04

  Polysiloxanes · CPC title

• C03C17/3405

  with at least two coatings of organic materials (C03C17/36, C03C17/42 take precedence) · CPC title