Nike has been awarded a patent for a new chemical bonding material. Be careful Nike. If the shoes last forever, people won't need to replace them as frequently.
Chemical bonding of rubber to plastic in articles of footwear (Assignee -- Nike, Inc. Nike International Ltd.)
January 28, 1998
------------------------------------------------------------------------ MicroPatent : Abstract: An article of footwear comprising relatively elastic and relatively inelastic materials chemically bonded together is disclosed. In one embodiment, the relatively elastic and relatively inelastic materials are arranged in such a fashion to impart flexibility to the article of footwear. In particular, plastic and rubber materials are bonded together to improve the flexibility of an outsole of an article of footwear. The invention also is directed to the fabrication of new or improved devices and elements for use in articles of footwear and their associated methods of construction such as closure mechanisms comprising relatively elastic straps bonded to relatively inelastic anchor portions and vice versa, articulating inelastic and elastic exoskeleton constructions useful in skates and ski boots, and elastic or inelastic eyelets surrounded by inelastic or elastic materials. The invention also is directed to chemically bonding relatively elastic to relatively inelastic materials for contemplated use in protective athletic equipment such as helmets and protective padding, and for use in prosthetic devices.
Ex Claim Text: An article of footwear comprising an outsole having heel, medial, forefoot and lateral areas, said outsole being a bonded composite of relatively inelastic and relatively elastic materials wherein the relatively inelastic material comprises an outsole plate and the relatively elastic material comprises a plurality of substantially separate, independent segments underlying and chemically bonded to only a portion of said outsole plate, and at least one of said substantially separate, independent segments being positioned along at least a portion of an outer perimeter of the outsole. the outsole.
Assignee: Nike, Inc. Nike International Ltd.
Patent Number: 5709954
Issue Date: 1998 01 20
Inventor(s): Lyden, Robert M.{#buMcLaughlin, Ross A.#}
Chriss, Henry T.
Buck, IV, Calvin M.
Potter, Daniel R.
Vincent, Steven M.
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