Waterproofed breathable sole for shoes and method for the manufacture thereof

A method for producing a sole, comprising:

• spreading sealant in an upper part of the tread, at least at a position of an edge of the membrane;
• applying the membrane while the sealant is still moist;
• forming catalysis selectively, either at high temperature, or at a low temperature with addition of reaction promoters;
• and
• performing cooling.

A method for producing a sole, comprising:

• providing a tread made of leather, or similar breathable and water-permeable material, which is at least partially covered in an upward region by a membrane made of a material that is breathable and impermeable to water and is joined at least parametrically to the tread with inner position of a sealant or by direct adhesion thereof so as to provide a seal, said membrane being constituted by a hydrophilic polymer, such as polyurethane, and being provided on said tread and self-sealed thereon;
• spreading said hydrophilic polymer on the upper part of the tread;
• performing catalysis at high temperature or at a low temperature by adding reaction promoters;
• and
• allowing cooling.