INSERT FOR VAPOR-PERMEABLE AND WATERPROOF SOLES
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United States of America Patent
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Issued Date -
Jun 21, 2012
app pub date -
Aug 4, 2010
filing date -
Aug 28, 2009
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Abstract
An insert for vapor-permeable and waterproof soles, which has a stratified and cohesive monolithic sheet-like structure, which includes a plurality of functional layers made of a polymeric material that is impermeable to water in the liquid state and permeable to water vapor. At least one functional portion of the insert for soles has such a thickness as to give it a penetration resistance of more than approximately 10 N, assessed according to the method presented in chapter 5.8.2 of the ISO 20344-2004 standard.
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