Abstract: A mat material having excellent holding power that is applied to a device or a structure used in a heated environment, and a pollution control device including the mat material. The holding material includes a mat-shaped main body having a first surface and a second surface, and an inorganic adhesive sheet disposed on at least one surface of the first and second surfaces of the main body, and includes an inorganic adhesive that exhibits adhesiveness when heated. The pollution control device includes a casing, a pollution control element disposed within the casing, and the mat material disposed between the casing and the pollution control element.

Abstract: A composition comprises a curable epoxy-containing material, a first thermoplastic polyurethane component, a curative for the epoxy-containing material, and optionally, a second thermoplastic polyurethane component that is different than the first thermoplastic polyurethane component. The compositions are useful for sealing discontinuities in a substrate surface, especially those found in motor vehicles. Sealant articles and methods of sealing discontinuities are also disclosed.

Abstract: A sealant composition comprising a curable epoxy-containing material, a thermoplastic polyamide component having a melting point lower than a curing temperature of the epoxy-containing material, and a curative for the epoxy-containing material. After curing of the epoxy-containing material, the sealant composition exhibits an elongation at −20° C. of at least 2. The sealant composition is capable of effectively sealing discontinuities while maintaining enough flexibility to absorb applied stress, thereby preventing the formation of defects in the sealant which permit the intrusion of dirt, moisture, and other undesirable substances.