| 摘要 |
The holding sealing material of the present invention is a holding sealing material including a mat having a predetermined thickness, wherein the mat contains inorganic fibers having a surface coated with a binder layer, the binder layer contains an organic binder and an inorganic binder, and when the mat is trisected in a thickness direction into a first surface portion, a middle portion, and a second surface portion, the amount of the organic binder attached to the first surface portion is more than the amount of the organic binder attached to the middle portion and is also more than the amount of the organic binder attached to the second surface portion. |
