| 摘要 |
PROBLEM TO BE SOLVED: To provide an additive for wall materials for improving the moisture absorbing and releasing properties, operability and strength of wall materials (such as soil walls, cotton walls, sand walls, classic decorative walls named jyuraku walls plaster walls, gypsum walls, cement walls and diatomaceous earth walls) applied to the interior and exterior of houses or the like, and to provide a wall material composition obtained by using the same. SOLUTION: The additive for the wall materials contains water expansible or water insoluble carboxymethylcellulose sodium salt. The wall material composition contains the additive. In particular, the one in which the substitution degree of carboxymethyl is 0.05 to 0.50 is preferable. COPYRIGHT: (C)2003,JPO
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