Abstract: A waterproof cover to be interposed between an inner panel and a door trim of an automobile door is obtained by forming a sheet of a resin composition comprising a linear low-density polyethylene (A) and an ethylene-propylene copolymer (B). Further, a waterproof cover to be interposed between an inner panel and a door trim of an automobile door is obtained by bonding a melt-blown nonwoven fabric made of a polyolefin fiber to an inner surface of a sheet being made mainly of a polyolefin. In manufacturing the waterproof cover, it is preferable that the sheet made mainly of the polyolefin is thermoformed by drape-forming to obtain convex portions. The waterproof cover can suppress occurrence of a vibration sound and is excellent in sound absorption and recycling property.

Abstract: A hose for automotive fuel piping has an inner layer formed of a molding of a terpolymeric fluoro-resin prepared from tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride, so that it can be provided with suitable flexibility. Both the vulcanization composition of an epichlorohydrin rubber or NBR/PVC blend to be disposed outside the inner layer and the vulcanization composition of an NBR rubber or fluororubber to be disposed inside the inner layer contain 1,8-diazablcylco(5.4.0)undecene-7 salts and organophosphonium salts. A satisfactory bonding strength can be attained merely by the vulcanlzation bonding without any surface treatment such as corona discharge on the surface of the inner layer fluororesin.

Abstract: There is provided a hose end structure comprising an inner layer of a low gas permeability material having a radially outwardly extended end portion, and a rubber layer on an inner surface of the radially outwardly extended end portion.