Low K-factor rigid foam systems
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United States of America Patent
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Issued Date -
Jul 7, 2005
app pub date -
Dec 30, 2003
filing date -
Dec 30, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides rigid polyurethane foams prepared by mixing an isocyanate with a polyol component containing an aromatic amine-initiated polyether polyol, an aromatic polyester polyol and optionally, a sucrose-based polyether polyol. The inventive foams have good properties as indicated by an initial k-factor at 35.degree. F. of from about 0.115 to about 0.120 BTU-in./hr.ft.sup.2.degree. F. and may find use as insulation materials in the construction and refrigeration industries.
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