| 摘要 |
<p>A vapor-permeable and waterproof sole for shoes, comprising: - a tread (1 4) provided with a plurality of through holes (15); - a multilayer pack (16) , which is arranged so as to be superimposed on the region where the through holes (15) are provided and comprises a membrane (17) which is permeable to water vapor and impermeable to liquids and a protective layer (18), which i s arranged directly below the membrane (17). The tread (14) is of the type w hich is overmolded onto the pack (16); the tread (14) further surrounds the edges, the lower perimetric portion and the upper perimetric portion of the pack (16) so as to form a perimetric seal (24) which is adapted to avoid the rise of liquids. The pack (16) comprises a vapor-permeable or perforated la yer-like element (19), which is arranged directly below the protective layer (18) so as to be superimposed on the region where the through holes (15) ar e provided; the layer-like element (19) is adapted to avoid the contact of t he polymeric material for molding with the protective layer (18) during the step for molding the tread (14). The layer-like element (19) is further asso ciated with the protective layer (18), forming with it at least one interfac e area (25) through which water vapor can flow, the area being adapted to fa cilitate vapor permeation.</p> |
