Akzo Nobel N.v.

Sympatex Technologies Gmbh

Manfred Gunter Haderlein

Liviu-Mihai Pavelescu

Liviu Mihai Pavelescu

Karsten Friedrich Keidel

John J Mulcahy

Harry Van De Ven

Waterproof, water vapor permeable shoe construction including an exterior upper, a waterproof, water vapor permeable functional-layer upper, a lining upper, and a sole. Both the waterproof, water vapor permeable functional-layer upper and the lining upper are in the shape of a sock and introduced separately into the shoe. The functional-layer upper and lining upper are preferably joined to the exterior upper only at a top opening of the shoe construction through which a foot is inserted. The functional-layer upper can be composed of individual pieces that are joined together by seams that are sealed, or it can be seamless. The method for manufacturing the waterproof, water vapor permeable shoe has the steps of manufacturing a exterior upper; manufacturing a waterproof, water vapor permeable functional-layer upper in the shape of a sock; manufacturing a lining upper in the shape of a sock; inserting the functional-layer upper into the exterior upper; inserting the lining upper into the functional-layer upper; and applying a sole from underneath.

Waterproof shoe

A shoe structure includes an outer shaft, an inner shaft and a sole. The inner shaft includes at least one waterproof, water-vapor permeable functional layer and at least one layer of lining material which faces the inside of the shoe structure. An extension, made of a waterproof material, is connected in a waterproof manner to a lower end of the inner shaft which faces an outsole of the shoe. The inner shaft is fixed in place in the sole area by the extension only. The extension preferably encloses the lower end of the inner shaft.

Waterproof shoe with an inner shaft extension

Waterproof shoe structure with adhesively secured sole

A waterproof shoe structure, which includes an outer layer, a lining with a waterproof but water-vapor permeable functional layer, a lining sole, an insole and an outsole. The lining which contains the functional layer has a lower end area which is turned back to the inside and positioned parallel to the outsole. The shoe structure includes: the lower end area of the lining which is turned back lying at the same level as the lining sole, the outer edge of the lining sole at least approximately parallel to and connected to the inner border of the lower end area of the lining which is turned back, the insole bonded from below in a waterproof manner to the functional layer in the lower end area of the lining which is turned back, and the insole waterproofed at least on its surface which faces towards the inside of the shoe structure.

Waterproof shoe with an insole and a lining sole

A process of making a shoe includes bonding a flat structure to an upper layer of the shoe to form a bonded structure. The flat structure has a melting temperature T.sub.2 and provides stability to a shape of the upper layer. The bonded structure is positioned into a mold so that an underside of the bonded structure faces the mold. A liquid sole material at a temperature T.sub.1 which is greater than T.sub.2 is sprayed into the mold, thereby contacting and melting the flat structure. The sole material cools and solidifies to form a shoe. The flat structure has a melting temperature T.sub.2 and provides stability to a shape of the upper layer.

Growing community of inventors

Hann, Germany

Manfred Gunter Haderlein