Porous thermoformable heat sealable nonwoven fabric
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United States of America Patent
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May 16, 1989
Grant Date -
N/A
app pub date -
Nov 6, 1987
filing date -
Nov 6, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A porous thermoformable heat sealable nonwoven fabric that is constructed by carding a bicomponent polymeric fiber and then heating the resulting fibrous web to cause bonding. The polymeric components of the bicomponent fiber have crystalline melting points that differ by at least 30.degree. C. The bicomponent fiber has a staple length ranging from 1.5' to 3.0' and a staple elongation-to-break of at least 30%.
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