Low stress relaxation elastomeric nonwoven webs and fibers
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United States of America Patent
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Nov 9, 1993
Grant Date -
N/A
app pub date -
Jan 10, 1990
filing date -
Jan 10, 1990
priority date (Note) -
Expired
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Abstract
An elastic nonwoven web is formed from elastic fibers composed of a blend of (1) a styrene-poly(ethylenepropylene)-styrene thermoplastic elastomeric block copolymer or a mixture of a styrene-poly(ethylenepropylene)-styrene elastomeric block copolymer and a styrene-poly(ethylene-butylene)-styrene elastomeric block copolymer, and (2) a tackifying resin in which the elastic nonwoven web has a stress relaxation of less than about 30 percent. The blend used to form the elastic nonwoven web and/or elastic fibers may also include a polyolefin and an extending oil.
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