BUILDING BOARD
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United States of America Patent
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N/A
Issued Date -
Jul 2, 2009
app pub date -
May 12, 2008
filing date -
Dec 27, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to A building board comprising a base course and a surface course, wherein the surface course is combined at the outer surface of the base course, wherein the base course made from a composition which comprises raw materials of light burning magnesium powder, magnesium chloride solution, mineral powder originated from city refuse, glass fiber, shale and hydrochloric acid, the surface course made from a composition which comprises raw materials of light burning magnesium powder, magnesium chloride solution, quartz powder and hydrochloric acid. The invention changes part of materials in city refuse into useful resource so as to protect the environment and increase the economic benefit.
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