MOISTURE-PERMEABLE WATERPROOF FABRIC
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United States of America Patent
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Issued Date -
Dec 20, 2012
app pub date -
Feb 22, 2011
filing date -
Feb 23, 2010
priority date (Note) -
Abandoned
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Abstract
Disclosed is a moisture-permeable waterproof fabric which is produced by using a plant-based material and has equivalent or superior performance as compared to conventional petroleum-based polyurethane resins. The moisture-permeable waterproof fabric comprises, on at least one surface thereof, a porous resin film composed of a polyurethane resin containing 5 to 80% by weight of a sebacic acid-based polyol component produced from a plant-based sebacic acid, and has an A-1 moisture permeability and a B-1 moisture permeably both of which are not less than 5,000 g/m2·24 h and a water pressure resistance of not lower than 5,000 mmH2O.
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