Microporous breathable elastic films, methods of making same, and limited use or disposable product applications
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United States of America Patent
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May 22, 2007
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N/A
app pub date -
Nov 7, 2003
filing date -
Aug 22, 2003
priority date (Note) -
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Abstract
A thermoplastic elastomer film includes a thermoplastic elastomer and a filled semi crystalline predominantly linear polymer. The film includes between about 25 and 70 weight percent filler, between about 5 and 30 by weight percent semi-crystalline linear polymer, and between about 15 and 60 by weight elastomer. The filler is closely associated with the semi-crystalline linear polymer. The elastic film demonstrates a load loss value at a 50 percent elongation of less than about 50 percent, and a breathability of greater than about 100 g/m.sup.2/24 hours.
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