Fire-retardant polyurethane systems
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United States of America Patent
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Sep 14, 2004
Issued Date -
N/A
app pub date -
Dec 20, 2002
filing date -
Feb 14, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A storage-stable moisture-curing one-component fire-retardant polyurethane system, useful as adhesive, sealant or coating material, comprising at least one hydrated mineral having a water-content of less than 0.1% and being treated with a moisture-reactive compound, and at least one binder on isocyanate basis. Such PU-systems preferably further comprise at least one phosphorus-containing compound, most preferably a phosphorus-containing plasticizer, which is preferably halogen-free. The binder on isocyanate basis has preferably an isocyanate content in the range of from 0.01 to 10% by weight referred to the total weight of the system.
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