Elastomeric meltblown webs
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United States of America Patent
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Jun 28, 1994
Issued Date -
N/A
app pub date -
Sep 30, 1992
filing date -
Sep 30, 1991
priority date (Note) -
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Abstract
The invention is directed to elastomeric meltblown webs having desirable strength and stretch/recovery properties which can be produced at relatively high throughputs and/or relatively low die pressures. The meltblown webs of the invention comprise a blend of (i) a fully hydrogenated diblock or triblock thermoplastic elastomer copolymer or mixtures thereof based on polystyrene and poly(ethylene-butylene) blocks; and (ii) from about 5% by weight up to about 50% by weight of a copolymer of ethylene and acrylic acid or ethylene and a lower alkyl ester of acrylic acid in which the ethylene content ranges from about 5% by weight up to about 50% by weight.
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