FOOTWEAR SOLE CONSTRUCTION
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United States of America Patent
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Issued Date -
Dec 27, 2007
app pub date -
Jun 22, 2006
filing date -
Jun 22, 2006
priority date (Note) -
Abandoned
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Abstract
A footwear adhesion system including a thermoplastic film, a sole component, and a footwear component. In one embodiment, the thermoplastic film is a thermoplastic polyurethane ('TPU') film. The film is sandwiched between the sole component and the footwear component. The film may be activated, for example, by high frequency welding, to form a bond between the sole component and the footwear component without releasing the amount of volatile organic compound emissions typical with conventional adhesives. Use of the film reduces or eliminates the need for conventional environmentally unfriendly cement in footwear construction.
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