Midsole for footwear
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United States of America Patent
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Jan 15, 1991
Grant Date -
N/A
app pub date -
Jun 15, 1989
filing date -
Jun 15, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A flexible innersole, or component thereof, for footwear of a foamed thermoplastic multi-block copolymer elastomer having a substantially uniform closed cell structure and having a specific gravity of less than about 0.35, an energy return ratio greater than about 0.55 when compressed and released said foam being prepared from a thermoplastic multi-block copolymer elastomer having a Shore D hardness of 25-45.
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