Abstract: A hose suited for use in clean rooms has a Minimum Bend Radius (MBR) that is flexible without kinking. The hose includes a germ and bacteria resistant smooth outer surface and is constructed form a low modulus rubber type matrix with primary reinforcement layers laid at optimal opposing angles around a thin walled thermoplastic liner and similarly a secondary reinforcement layer of wire is utilized.

Abstract: Material handling hose having an abrasion-resistant cover element is disclosed. The hose comprises an inner tube, a reinforcement member, an intermediate layer and the abrasion-resistant cover element. The cover element does not cover the entire surface of the intermediate layer, but includes apertures or gaps through which a portion of the underlying intermediate layer is exposed to the outside environment. The apertures allow for venting of high volatility materials through the hose body, and provide regions of relatively high coefficient of friction, to facilitate handling of the hose.

Abstract: Polyfluorocarbon/elastomer bonded laminates are disclosed. Flexible, durable chemical-resistant hose for use in industrial applications, and improved construction for such hose including inner tube members characterized by a dual-layer feature employing such laminate, is also disclosed. This feature comprises an adhesive elastomeric composition which bonds a polyfluorocarbon thermoplastic veneer to a substantially non-polar chemical-resistant carbon-based elastomeric or thermoplastic elastomeric outer layer. The adhesive elastomeric composition useful in the present invention comprises unsaturated polymeric dicarboxylic acids, or derivative adducts, of ethylene propylene diene terpolymer.