Removing the silicone coating from coated fabrics and airbags
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United States of America Patent
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Jul 17, 2012
Grant Date -
May 21, 2009
app pub date -
Jun 26, 2006
filing date -
Jul 15, 2005
priority date (Note) -
Expired
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Abstract
The invention relates to a process for removing silicones present on fibers, yarns or textile sheet materials (substrates) wherein an aqueous preparation is allowed to act on the substrates, and then the thus treated substrates are rinsed to remove the residual silicone, characterized in that said preparation contains from 0.5 to 10% by weight of surface-active quaternary ammonium compounds and from 0.5 to 5% by weight of alkali hydroxide, respectively based on the aqueous preparation. The process is suitable, in particular, for the recovery and recycling of fibrous material and silicones from airbags or coated fabric scraps from the ready-making of airbags.
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