| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently obtain an incombustible decorative plate having satisfactory external appearance. SOLUTION: This decorative plate 4 is constituted by superposing sheet materials 2, 3 for a decorative layer on a front surface or front and rear surfaces of a sheet material 1 for a core material layer coated with compound obtained by mixing phenol resin with two or more types of aluminum hydroxides having different particle sizes, laminating integrally it on a porous sheet base material made of mineral fiber. In this case, in the aluminum hydroxide having two or more types of particle sizes, large particle size is 50 to 200μm of mean particle size, small particle size is 1 to 30μm of mean particle size, total amount of the both is 50wt.% or more of overall filler, a ratio of the mean particle sizes of the both is 6 times or more, and a mixing ratio is 4:6 to 6:4.</p> |
