IP Library Granted Patent US 11,084,256
Granted Patent B2
US 11,084,256 · App. 16/731,544 · Granted Aug 10, 2021

Decorative sheet

Inventors: Akihisa Noda (Tokyo, JP); Hiroki Kawanishi (Tokyo, JP)
Assignee: Dai Nippon Printing Co., Ltd.
B32B27/00B44C1/17C08J7/043C08J7/046C09D175/04C09D5/002C09D163/00C09D167/00
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Quick Facts
Patent No.
US 11,084,256
App. No.
16/731,544
Granted
Aug 10, 2021
Kind
B2
Abstract

The present invention provides a decorative sheet capable of vividly displaying deep-color designs including raven blackness. The decorative sheet includes a base material, and at least a protective layer, a primer layer, and a decorative layer laminated in this order on the base material, wherein the decorative layer contains a black pigment and the primer layer is formed of a cured product of a resin composition containing a resin A having a hydroxyl value of 44 mgKOH/g or less.

Claims (24)

1. A decorative sheet comprising a base material, and at least a protective layer, a primer layer and a decorative layer laminated in this order on the base material,

the decorative layer containing a black pigment,

the primer layer being formed of a cured product of a resin composition containing a resin A having a hydroxyl value of 44 mg KOH/g or less,

the resin A having a glass transition temperature of 80° C. or more, and

the resin A being an acryl-based resin.

2. The decorative sheet according to claim 1 , wherein the resin A has a glass transition temperature in a range of 80 to 140° C.

3. The decorative sheet according to claim 1 , wherein the resin A has a hydroxyl value in a range of 0 to 25 mg KOH/g.

4. The decorative sheet according to claim 1 , wherein a content of the resin A in the resin composition is 10% by mass or more based on an amount of resin components contained in the resin composition.

5. The decorative sheet according to claim 1 , wherein the decorative layer is formed of the black pigment, and a resin composition containing a binder resin composed of the same resin as the resin A.

6. The decorative sheet according to claim 1 , wherein at least a part of the decorative layer has a portion displaying a black design.

7. A decorative resin molded article obtained by transferring the decorative sheet according to claim 1 to a molded resin layer.

8. The decorative sheet according to claim 2 , wherein the resin A has a hydroxyl value in a range of 0 to 25 mg KOH/g.

9. The decorative sheet according to claim 2 , wherein a content of the resin A in the resin composition is 10% by mass or more based on an amount of resin components contained in the resin composition.

10. The decorative sheet according to claim 3 , wherein a content of the resin A in the resin composition is 10% by mass or more based on an amount of resin components contained in the resin composition.

11. The decorative sheet according to claim 2 , wherein the decorative layer is formed of the black pigment, and a resin composition containing a binder resin composed of the same resin as the resin A.

12. The decorative sheet according to claim 3 , wherein the decorative layer is formed of the black pigment, and a resin composition containing a binder resin composed of the same resin as the resin A.

13. The decorative sheet according to claim 4 , wherein the decorative layer is formed of the black pigment, and a resin composition containing a binder resin composed of the same resin as the resin A.

14. The decorative sheet according to claim 2 , wherein at least a part of the decorative layer has a portion displaying a black design.

15. The decorative sheet according to claim 3 , wherein at least a part of the decorative layer has a portion displaying a black design.

16. The decorative sheet according to claim 4 , wherein at least a part of the decorative layer has a portion displaying a black design.

17. A decorative resin molded article obtained by transferring the decorative sheet according to claim 2 to a molded resin layer.

18. A decorative resin molded article obtained by transferring the decorative sheet according to claim 3 to a molded resin layer.

19. A decorative resin molded article obtained by transferring the decorative sheet according to claim 4 to a molded resin layer.

20. A decorative resin molded article obtained by transferring the decorative sheet according to claim 5 to a molded resin layer.

Priority Claims (1)
JP 2014-200482 · Sep 30, 2014 · national
Continuity (2)
Continuation 15515189
Related Publication 20200139683A1 · May 7, 2020