| 摘要 |
PROBLEM TO BE SOLVED: To provide an inorganic building board which is lightweight and inexpensive while maintaining predetermined flame retardancy and mechanical strength. SOLUTION: A flame-retardant layer 15 is formed by applying a fire-retarding agent, wherein a swelling inorganic compound serves as an essential component, to at least one side of an inorganic board-like base material 14. COPYRIGHT: (C)2005,JPO&NCIPI |
