FOOTWEAR SOLE CONSTRUCTION
First Claim
Patent Images
1. A footwear adhesion system comprising:
- a first sole component;
a footwear component; and
a thermoplastic film disposed between said first sole component and said footwear component, wherein said thermoplastic film joins said first sole component and said footwear component.
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Accused Products
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.
97 Citations
20 Claims
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1. A footwear adhesion system comprising:
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a first sole component; a footwear component; and a thermoplastic film disposed between said first sole component and said footwear component, wherein said thermoplastic film joins said first sole component and said footwear component. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of footwear construction comprising:
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providing a first sole component and a footwear component; positioning a thermoplastic film between the first sole component and the footwear component; activating the thermoplastic film to form a bond between the first sole component and the footwear component, whereby said activating does not release a substantial amount of volatile organic compound emissions. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of footwear construction comprising:
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providing a first sole component and a footwear component; positioning a thermoplastic film between the first sole component and the footwear component; activating the thermoplastic film to form a bond between the first sole component and the footwear component, whereby said bond is substantially free of conventional cement. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification