Cement reinforced gypsum foam with mineral wool
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United States of America Patent
Stats
-
Jan 19, 1982
Grant Date -
N/A
app pub date -
Apr 23, 1980
filing date -
Apr 23, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved material particularly suited for the thermal insulation of building structures such as residential housing. The material comprises an inorganic, low-density cellular thermally insulating foam comprising a gypsum matrix having minute cavities homogeneously distributed therein. The material has a dry density of less than about 6 pounds per cubic foot and a thermal coefficient of less than about 0.37. The gypsum matrix includes therein approximately 1 to 15% by weight of cement, approximately 0.5 to 7% by weight of mineral wool and at least approximately 0.25% by weight of chopped glass.
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