| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a construction plate material which has high nail-side resistance and nail-head penetrating force, which can sufficiently retain a nail or the like, and which can be used as a wall underlayer comprising a proof-stress wall. Ž<P>SOLUTION: A wet mat is formed by a wet manufacturing method from slurry of which the essential ingredient is 20 to 60 wt.% of a mineral matter fiber, 10 to 20 wt.% of an organic matter fiber, 10 to 70 wt.% of an inorganic powder, and 10 to 25 wt.% of an organic binding agent-containing thermosetting resin. Then a single-layer wet plate material formed of the wet mat or a multiple-layer wet plate material can be obtained, and at least both layer sides of the multiple-layer wet plate material are formed of the wet mat. After drying the wet plate material to 20% or less of a moisture content in a temperature range where the thermosetting resin does not harden, the thermocompression press of the wet plate material is performed, and the organic binding agent is completely hardened. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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