Polycarbamides, polycarbamates, and polycarbamide-formaldehyde and polycarbamate-formaldehyde condensation resins
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United States of America Patent
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Issued Date -
Jun 11, 2009
app pub date -
Dec 7, 2007
filing date -
Dec 7, 2007
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Abstract
The present invention provides manufacturing of and the use of novel polycarbamates and polycarbamides and their condensation reaction products formed by reacting with formaldehyde as wood composite binder resins and in other applications. These resins have thermosetting capabilities and usefulness as binders for wood and other materials with superior resin properties of low cost, colorlessness, exceptionally good binding, and fast curing characteristics, as well as very low formaldehyde emissions. The newly-designed and synthesized novel starting materials for the thermosetting resins of the present invention are diethylene tricarbamide and various polycarbamates derived from corresponding polyols.
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