Polyurethane-based Waterproofing Composition for the Water-proofing of Concrete Structures
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United States of America Patent
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Issued Date -
May 28, 2015
app pub date -
Jun 6, 2012
filing date -
Jun 6, 2012
priority date (Note) -
Abandoned
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Abstract
The present invention relates to waterproofing compositions based on polyurethanes, which are particularly useful for the waterproofing of concrete structures. The compositions are characterized in that they comprise at least one branched isocyanate component comprising on average at least 2.3 isocyanate groups per molecule and at least one hydroxycarboxylic acid component. Preferably the composition further comprises at least one polyol component and at least one latent amine component.
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