HIGH DENSITY POLYURETHANE AND POLYISOCYANURATE CONSTRUCTION BOARDS AND COMPOSITE BOARDS
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United States of America Patent
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app pub date -
May 16, 2011
filing date -
Feb 1, 2005
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Abandoned
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Abstract
A high density construction board includes a cellular body having a first planar surface and a second planar surface. A first glass facer is positioned adjacent the first planar surface and a second glass facer is positioned adjacent the second planar surface. The cellular body of the construction board includes a polyurethane, a polyisocyanurate, or a mix of polyurethane and polyisocyanurate and has a density greater than about 2.5 pounds per cubic foot and less than 6 pounds per cubic foot.
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