EXPANDING MATERIAL IN NONWOVEN 3-D STRUCTURE
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United States of America Patent
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Issued Date -
Feb 13, 2014
app pub date -
Aug 13, 2012
filing date -
Aug 13, 2012
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Abstract
A continuous filament non-woven web is disclosed, wherein filaments of the web include an expandable thermoplastic material. Mattings fabricated from the continuous filament non-woven web are also disclosed. The web or matting can be used in sealing applications as it can be cut into desired dimensions and inserted into a cavity. The web or matting allows for introduction and drainage of further fluids in and from the cavity. The extendable thermoplastic material can be activated and foamed to fill a part of or the entire cavity. The sealing can prevent air, water or noise from intruding into the cavity and a space behind that cavity.
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