Polyols, polyurethane systems and polyurethane reactive hot melt adhesives produced therefrom
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United States of America Patent
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Feb 25, 2003
Grant Date -
N/A
app pub date -
Jun 12, 2000
filing date -
Jun 11, 1999
priority date (Note) -
Expired
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Abstract
A new polyol family for the manufacture of novel polyurethane systems, preferably of polyurethane reactive hot melt adhesives is disclosed. The polyol(s) are reactive modifiers that enhance the properties of polyurethane systems. The inventive polyols are the reaction product of a monocarboxylic acid, a polycarboxylic acid and a polyhydric alcohol. The polyol of the present invention is used to produce urethane polymers, preferably polyurethane reactive hot melt adhesives by reacting the polyol with polyfunctional isocyanates. A method for producing the polyol, the urethane polymer as well as the polyurethane reactive hot melt adhesives is also provided.
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