Abstract: A unit for returning one or several flat food products, comprising a returning element configured for rotating around a rotating axis and provided with at least one outer face for receiving the one or several flat food products to be returned; wherein the at least one outer face is provided with air aspiration holes for maintaining by depression the one or several flat food products on the outer face when the returning element is rotated with the outer face oriented downwardly.

Abstract: Multilayer composites coextruded with the use of polyolefins and of impact-reinforced impervious resin compositions based on hydrolysed copolymers of vinyl acetate and ethylene comprising, as an additive improving the impact strength, elastomeric copolymers of ethylene and propylene which are modified by grafting an .alpha.,.beta.-ethylenically unsaturated carboxylic acid and, preferably, by maleic anhydride.The coextruded multilayer composites are very particularly suitable for the manufacture of fuel storage vessels combining impact strength and high imperviousness to petrol and to petrol/alcohol mixtures.