Decorative sheet, decorative panel, and coating agent for forming surface protective layer
US11458708B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Sep 5, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F15/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A decorative sheet having a surface-protecting layer, the surface-protecting layer having excellent contamination resistance, alkali resistance, etc., for a long period of time, while limiting the occurrence of breakage and cracks when an impact is applied thereto or during processing; and a decorative plate using the decorative sheet is provided. Specifically, a decorative sheet comprising a laminate, the laminate comprising at least a base material sheet and a first surface-protecting layer in sequence in the thickness direction; (1) the first surface-protecting layer comprising an ionizing radiation-curable resin containing two kinds of aliphatic urethane acrylates, i.e., resin A and resin B, wherein resin A is an aliphatic urethane acrylate with an isocyanurate skeleton, and resin B is an aliphatic urethane acrylate with an alicyclic skeleton without an isocyanurate skeleton, and (2) the first surface-protecting layer having a nanoindentation hardness of 160 MPa or more and 240 MPa or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.