Decorative sheet and decorative member

Patent metadata

Field	Value
Publication number	US-12515444-B2
Application number	US-202318102134-A
Country	US
Kind code	B2
Filing date	Jan 27, 2023
Priority date	Aug 31, 2020
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

A decorative sheet and a decorative member having high scratch resistance and antiviral properties. The decorative sheet includes a substrate sheet, an adhesive layer, a surface protective layer, and a thermoplastic resin layer, wherein at least one of the surface protective layer and the thermoplastic resin layer contains a nucleating agent or inorganic particles, and the surface protective layer has added thereto an antiviral agent at an amount of 0.2 parts by mass or more and 10 parts by mass or less.

First claim

What is claimed is:

1 . A decorative sheet, comprising:
a substrate sheet; an adhesive layer; a surface protective layer; and a thermoplastic resin layer, wherein at least one of the surface protective layer and the thermoplastic resin layer contains a nucleating agent or inorganic particles, the surface protective layer has added thereto a silver-based antiviral agent at an amount of 0.2 parts by mass or more and 10 parts by mass or less; the surface protective layer has a thickness of 3 μm or more and 15 μm or less, the silver-based antiviral agent has an average particle size which is 1.5 μm or more and 10 μm or less; and particle sizes of the silver-based antiviral agent have a first peak in a range of 1 μm or more and 5 μm or less, and a second peak in a range of 5 μm or more and 10 μm or less.

2 . The decorative sheet of claim 1 , wherein the antiviral agent is supported by an inorganic material.

3 . The decorative sheet of claim 1 , wherein the surface protective layer has a surfactant further added thereto.

4 . The decorative sheet of claim 3 , wherein the surfactant includes at least any one of a cationic surfactant, an amphoteric surfactant, and a nonionic surfactant.

5 . A decorative member, comprising:
a substrate; and the decorative sheet of claim 1 , which is attached to the substrate.

6 . The decorative sheet of claim 1 , wherein the amount of the silver-based antiviral agent in the surface protective layer is 0.2 parts by mass or more and 5 parts by mass or less.

7 . The decorative sheet of claim 1 , wherein the silver-based antiviral agent has the average particle size which is 5 μm or more and 10 μm or less.

Assignees

• Toppan Inc

Inventors

• Orihara Takashi
• Sagawa Koichi

Classifications

• B32B2307/732

  Dimensional properties · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title

• B32B2250/24

  All layers being polymeric · CPC title

• B32B27/40

  comprising polyurethanes · CPC title

• B32B27/32

  comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} · CPC title