| 摘要 |
The present invention provides a honeycomb structural body that is superior in safety because, even when the material thereof is taken into the human body upon manufacturing, using or discarding the structural body, the material will be dissolved and discharged out of the human body. The honeycomb structural body of the present invention is a pillar-shaped honeycomb structural body made of porous ceramics and including a large number of through holes that are placed in parallel with one another in the length direction with a wall portion interposed therebetween. Herein, the honeycomb structural body has a sealing material layer formed thereon, and the sealing material layer contains inorganic fibers comprising 60 to 85% by weight of silica and 15 to 40% by weight of at least one kind of compound selected from the group consisting of an alkali metal compound, an alkali-earth metal compound and a boron compound. |
