Decorated sheet

• US 6,103,352 A
• Filed: 04/17/1998
• Issued: 08/15/2000
• Est. Priority Date: 08/28/1996
• Status: Expired due to Term

• Current Assignee: Dai Nippon Printing Company Limited
• Original Assignee: Dai Nippon Printing Company Limited
• Inventors: Takahashi, Kazuhiro
• Primary Examiner(s): Krynski, William
• Assistant Examiner(s): Xu, Hong J.
• Application Number:
  US09/051,714
• Time in Patent Office: 851 Days
• Field of Search: 428/195, 428/76, 428/542.2, 428/542.6, 442/164, 442/381, 442/392, 525/66, 525/64
• US Class Current: 428/195.1
• CPC Class Codes: B32B 27/00 Layered products comprising a layer of synthetic resin fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18
• CPC Class Codes: B44C 5/04 Ornamental plaques, e.g. decorative panels, decorative veneers
• CPC Class Codes: B44C 5/0469 comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
• CPC Class Codes: E04F 13/0871 having an ornamental or specially shaped visible surface E04F13/0867 takes precedence
• CPC Class Codes: Y10T 428/239 Complete cover or casing
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

A decorative sheet provided with a surface protective layer is provided which is excellent in both surface protective properties and bonding strength between layers. The decorative sheet 10 according to the present invention comprises: a substrate sheet 1; a contiguous layer 4 provided on the substrate sheet 1; and a surface protective layer 5 provided on the contiguous layer 4 containing a compound having active hydrogen, the surface protective layer 5 comprising an ionizing radiation-curing resin and an isocyanate compound, the contiguous layer 4 and the surface protective layer 5 being in a cured state.

Claims

1. A decorative sheet comprising:

a substrate sheet;

a contiguous layer provided on the substrate sheet; and

a surface protective layer provided on the contiguous layer, the surface protective layer comprising an ionizing radiation-curing resin composition,

the contiguous layer comprising a compound containing active hydrogen,

the surface protective layer further comprising an isocyanate compound, and

the contiguous layer and the surface protective layer being in a cured state, wherein the contiguous layer does not contain said isocyanate compound and the surface protective layer does not contain said compound containing active hydrogen.

2. The decorative sheet according to claim 1, wherein the compound having active hydrogen is a compound having a group selected from the group consisting of a polyol, COOH, and NH₂ groups.

3. The decorative sheet according to claim 1, wherein the contiguous layer further comprises an isocyanate group-containing acrylate monomer and/or prepolymer.

4. The decorative sheet according to claim 1, wherein the contiguous layer comprises a solid print layer and/or a pattern layer.

5. The decorative sheet according to claim 1, wherein the isocyanate compound contained in the surface protective layer is an isocyanate group-containing acrylate monomer and/or prepolymer.

6. A decorative sheet comprising:

a substrate sheet;

a contiguous layer provided on the substrate sheet; and

a surface protective layer provided on the contiguous layer, the surface protective layer comprising an ionizing radiation-curing resin composition,

the contiguous layer comprising an isocyanate compound,

the surface protective layer further comprising a compound containing active hydrogen, and

the contiguous layer and the surface protective layer being in a cured state, wherein the contiguous layer does not contain said compound containing active hydrogen and the surface protective layer does not contain said isocyanate compound.

7. The decorative sheet according to claim 6, wherein the compound having active hydrogen is a compound having a group selected from the group consisting of a polyol, COOH, and NH₂ groups.

8. The decorative sheet according to claim 6, wherein the contiguous layer further comprises an isocyanate group-containing acrylate monomer and/or prepolymer.

9. The decorative sheet according to claim 6, wherein the contiguous layer comprises a solid print layer and/or a pattern layer.

10. The decorative sheet according to claim 6, wherein the isocyanate compound contained in the surface protective layer is an isocyanate group-containing acrylate monomer and/or prepolymer.