Inorganic board and method for producing the same
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United States of America Patent
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Issued Date -
Jul 24, 2008
app pub date -
Oct 17, 2007
filing date -
Oct 19, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An object of the invention is to provide an inorganic board excellent in water absorption resistance, dimensional stability and/or frost damage resistance, and a method for producing the same. The inorganic board is produced through the following processes: preparing a slurry by dispersing a cement-based hydraulic material and a refined fiber reinforcing material into water, adding a saturated carboxylic acid to the slurry, and then the slurry is subjected to the steps of sheetmaking, dehydration, pressing and curing. The inorganic board comprising a refined fiber reinforcing material at 1-30 weight % based on the total solid content and a saturated carboxylic acid at 0.1-2.0% based on the total solid content.
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