Process for the production of a shoe sole having a...

Details Process for the production of a shoe sole having a... Process for the production of a shoe sole having a...

B - Operations, Transporting

29

C

18/81

B29C 44/56 (2006.01) B29D 35/12 (2010.01) A43B 13/04 (2006.01) C08J 9/10 (2006.01)

Patent

CA 1167213

ABSTRACT OF THE DISCLOSURE A process is disclosed for the production of a shoe sole bearing a relief-like tread pattern, made from a closed-cell foamed cross linked ethylene/vinylacetate copolymer in which the material that is used is shaped into a slab, cross-linked, and then expanded by activation of a foaming agent contained therein, subsequently tempered, and the slab split into several partial slabs in at least one process step. The surface of each partial slab is then heated on one or both sides to a temperature of at least 120°C, maximum 200°C, provided that the temperature at a depth that corresponds to the depth of the desired pattern does not exceed 75°C, whereupon the surface so heated is configured in a relief-like pattern by the use of a stamping tool that has been heated to a temperature of 65 to 80°C.

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