| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problems that, as the defects of a carbonized board, the surface strength is low, there is an anxiety as for the scattering of fine powder, there is the serious feeling in the fine coal in respect of handiwork or a circulation face, and further, its versatile applicability is poor because it is wholly black to check its marketability as goods. <P>SOLUTION: A board surface is, e.g., coated with coal ash, flight ash, zeolite or their mixed composite as a porous stock similarly to the carbonized board, so that the goods having a higher added value as commercial goods are provided without deteriorating the characteristics of the carbonized board. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
