Aqueous polyurethane-polyurea dispersions
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United States of America Patent
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Apr 14, 2015
Grant Date -
Apr 21, 2011
app pub date -
May 19, 2009
filing date -
May 28, 2008
priority date (Note) -
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Abstract
The present invention relates to aqueous polyurethane-polyurea dispersions which stabilize a foam—produced by mechanical expansion—without addition of further foam-stabilizing components in such a way that aqueous foams are obtainable which are stable both during temporary storage and during processing, so that they can be applied in the form of foam also by customary application methods and substantially retain the foam structure even after drying.
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