Colored building boards, manufacturing methods thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 25, 2004
Grant Date -
Aug 16, 2001
app pub date -
Jan 31, 2001
filing date -
Jan 31, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is provided a building board which is colored by mixture of a pigment(s) into the raw materials and exhibiting an excellent color development effect. A pigment and a resin(s) are incorporated into the raw materials of the front layer to form a resin film simultaneously with cement curing, thereby blocking the inflow or outflow of water through the surface of the substrate to provide a cement board with good waterproofness. The cement board obstructs the efflorescence generation and exhibits an excellent pigment color development effect.
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Family
International Classification(s)
Cited Art Landscape
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