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US 11,891,756 B2Granted
Decorative paper for resin-impregnated decorative plate, resin-impregnated decorative paper, and resin-impregnated decorative plate
AssigneeToppan Printing Co., Ltd.
InventorsHajime Harima, Takahiro Iseya, Chiho Harada
Life of this patent
Estimating the term…
Abstract
A base paper (6), a picture pattern layer (7) provided on a surface (6a) side of the base paper (6), and foaming agents (8) arranged on a surface (7a) of the picture pattern layer (7) or in the picture pattern layer (7) are provided. In the foaming agents (8), the average particle diameter after foaming is set to 15 μm or more and 250 μm or less and the foaming start temperature is set to 100° C. or more and 220° C. or less.
Claims4
A resin-impregnated decorative plate comprising:
- a decorative paper;
- and
- a thermosetting resin impregnated into the decorative paper;
- the decorative paper comprising:
- a base paper;
- a picture pattern layer provided on a surface side of the base paper;
- and
- a foaming agent arranged on a surface of the picture pattern layer or in the picture pattern layer, wherein
- an average particle diameter after foaming of the foaming agent is 15 μm or more and 250 μm or less and a foaming start temperature the foaming agent is 100° C. or more and 220° C. or less, and
- an average particle diameter before foaming of the foaming agent is ⅔ times or more and 50 times or less than a layer thickness of the picture pattern layer, and
- wherein the impregnating thermosetting resin forms a resin layer having a plurality of uneven patterns which are arranged on and aligned with the foaming agent, and the uneven patterns having no scratches in a scratch resistance test.
8 more elements
Dependencies are inferred from the claim text.