Unitized composite fabrics with cross machine wave-like shaping and methods for making same
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United States of America Patent
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Apr 22, 2014
Grant Date -
Apr 19, 2012
app pub date -
Dec 21, 2011
filing date -
Jun 14, 2006
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Abstract
Processes for producing a composite material comprising three or more layers, including at least one internal layers that is a roll good element or an in situ produced nonwoven layer includes shaping an assembly of three or more layers into a wave-like form, with at least one of the internal layers being a roll good element or an in situ produced nonwoven layer, and subsequently activating the assembly to cause bonding of the layers and creation of a unitized composite material that, for example, has utility as a filter material.
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