Mid sole having layered structure
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United States of America Patent
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Sep 19, 2017
Issued Date -
N/A
app pub date -
Mar 15, 2013
filing date -
Mar 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A mid sole arranged on an outsole having a tread surface, the mid sole including: an upper layer and a lower layer, wherein one of the upper layer and the lower layer includes a layer of a first foamed body having a thermoplastic resin component; in another one of the upper layer and the lower layer, one or two or more of a majority of a flat area of a front foot portion, a majority of a flat area of a middle foot portion, and a majority of a flat area of a rear foot portion includes a layer of a second foamed body having a thermoplastic resin component; and the second foamed body has a greater specific gravity than the first foamed body, and is formed by a low-resilience material having a low speed of recovering to its original shape after being deformed.
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