Decorative sheet with different beads in different layers

Patent metadata

Field	Value
Publication number	US-10328657-B2
Application number	US-201313847179-A
Country	US
Kind code	B2
Filing date	Mar 19, 2013
Priority date	Mar 22, 2006
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A durable decorative sheet high in the ability to follow a curved surface with small appearance change by heat or elongation. A decorative sheet comprising a transparent resin film having two main surfaces, a transparent resin layer formed on the first main surface of the transparent resin film, a pattern printed layer arranged on the transparent resin layer, and a colored base film arranged on the second main surface of the transparent resin film. The transparent resin layer includes first beads, the pattern printed layer include second beads. The first beads are different from the second beads in content, color and/or particle size. The first beads and the second beads are embedded in the transparent resin layer and the pattern printed layer.

First claim

What is claimed:

1. A decorative sheet comprising:
a transparent resin film having a first main surface and a second main surface;
a transparent resin layer on the first main surface of the transparent resin film, with the transparent resin layer containing first beads;
a pattern printed layer embedded into the transparent resin layer, with the pattern printed layer containing second beads; and
a colored base film on the second main surface of the transparent resin film;
wherein the second beads are colored, the first beads are different from the second beads in content, color and/or particle size, and a pattern is formed by the contrast between the transparent resin layer and the pattern printed layer and further wherein the decorative sheet, including the pattern printed layer, is thermally moldable.

2. The decorative sheet as set forth in claim 1 , wherein the appearance of the contrast between the transparent resin layer and the pattern printed layer does not substantially changes when exposed to the heating and elongation of a thermal molding process.

3. The decorative sheet as set forth in claim 1 , wherein the colored base film is thermally laminated onto the second main surface of the transparent resin film.

4. The decorative sheet as set forth in claim 3 , wherein both the first and second beads are colored.

5. The decorative sheet as set forth in claim 1 , wherein both the first and second beads are colored.

6. The decorative sheet as set forth in claim 1 , further comprising a second pattern printed layer between the second main surface of the transparent resin film and the colored base film.

7. The decorative sheet as set forth in claim 6 , further comprising an adhesive layer and a release sheet in that order on the surface of the colored base film opposite to the surface thereof in contact with the transparent resin film.

8. The decorative sheet as set forth in claim 1 , wherein a second pattern printed layer is formed on the second main surface of the transparent resin film, and the colored base film is thermally laminated onto the transparent resin film.

9. The decorative sheet as set forth in claim 1 , further comprising an adhesive layer and a release sheet in that order on the surface of the colored base film opposite to the surface thereof in contact with the transparent resin film.

10. The decorative sheet as set forth in claim 9 , wherein grooves are formed on the surface of the adhesive, in contact with the release sheet, that allow air to bleed out from behind the decorative sheet when applied to a surface.

11. The decorative sheet as set forth in claim 1 , wherein the volume ratio between the first beads and the transparent resin in the transparent resin layer is 3:35 to 4:5.

12. The decorative sheet as set forth in claim 11 , wherein the volume ratio between the second beads and the resin in the pattern printed layer is 3:35 to 4:5.

13. The decorative sheet as set forth in claim 1 , wherein the amount of first beads in the transparent resin layer is 21 to 85 volume percent.

14. The decorative sheet as set forth in claim 13 , wherein the volume ratio between the second beads and the resin in the pattern printed layer is 3:35 to 4:5.

15. The decorative sheet as set forth in claim 1 , wherein the volume ratio between the second beads and the resin in the pattern printed layer is 3:35 to 4:5.

16. A molded part comprising the decorative sheet as set forth in claim 1 .

17. The molded part as set forth in claim 16 , wherein the decorative sheet is thermally molded in a three-dimensional curved shape.

18. A molded part comprising the decorative sheet as set forth in claim 5 .

19. A molded part comprising the decorative sheet as set forth in claim 6 .

20. The molded part as set forth in claim 19 , wherein the decorative sheet is thermally molded in a three-dimensional curved shape.

Assignees

• 3M Innovative Properties Co

Inventors

• Chisaka Hajime
• Kanno Mamoru

Classifications

• B32B2250/24

  All layers being polymeric · CPC title

• Y10T156/10

  Methods of surface bonding and/or assembly therefor · CPC title

• B32B2479/00

  Furniture · CPC title

• Y10T428/1467

  Coloring agent · CPC title

• C09J2201/162

  Chemistry & Metallurgy · mapped topic