| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a laminated mineral plate having excellent surface decorativeness, light weight and excellent strength characteristics. SOLUTION: The laminated mineral plate comprises a core material containing a mineral cured hydrate as a main component and a fibrous material and covered with a fiber sheet. In this case, the core material is constituted by at least three or more layers. And, the layer in contact with the fiber sheet contains 5 vol.% or less of a fibrous material. And, a content of the fibrous material contained in a layer not brought into contact with the fiber sheet of the core material is more than that of the layer brought into contact with the fiber sheet.</p> |
