Process of making a shoe with a spray-molded sole and shoe manufactured therefrom
AssigneeAkzo Nobel N.V.
InventorsLiviu Mihai Pavelescu, Manfred Haderlein
Life of this patent
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Abstract
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.
Claims19
A process of making a shoe wherein said process comprises the steps of:
- bonding a flat structure to an upper layer of the shoe, the flat structure having a melting temperature T.sub.2 and providing stability to a shape of the upper layer, to form a bonded structure;
- positioning the bonded structure into a mold so that an underside of the bonded structure faces the mold;
- spraying a liquid sole material into the mold, the sole material being at a temperature T.sub.1 which is greater than temperature T.sub.2, the sole material contacting and melting the flat structure;
- allowing the sole material to cool and solidify;
- and
- removing the shoe from the mold, wherein the shoe does not have an insole.
Dependencies are inferred from the claim text.