Low smoke generating polyurethane foam
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United States of America Patent
Stats
-
Aug 5, 1980
Grant Date -
N/A
app pub date -
Jun 26, 1978
filing date -
Jun 26, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polyurethane foam composition is disclosed which has low smoke generation characteristics (i.e., a rating of less than 50 in the ASTM E-84 Tunnel Test). The composition comprises 80-100 parts by weight of poly(trichloro-oxybutylene) carbohydrate adduct, 0-20 parts by weight of an amine-based polyol, 80-155 parts by weight of a polyalkylene polyphenyl isocyanate, 10-50 parts by weight of a fluorcarbon foaming agent, 0.3-3.0 parts by weight of a surfactant, and 0.005-4.0 parts of a catalyst. The foam finds use as a thermal insulation, particularly pipe insulation.
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Cited Art Landscape
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