Colored concrete roofing tiles and a method for producing colored concrete bodies such as colored concrete roofing tiles
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United States of America Patent
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-
Jul 31, 2001
Grant Date -
N/A
app pub date -
Feb 14, 2000
filing date -
Sep 7, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for producing colored concrete bodies, particularly colored concrete roof tiles, whereby pigment is added to the unprocessed concrete mix. In order to provide the production of permanently colored concrete bodies with reasonably priced pigments which are stable in outdoor exposure and are resistant to light, particularly UV, alkaiis and heat. A cement compatible aqueous polymer dispersion in which organic pigment is dispersed is added to the unprocessed concrete mix. Suitable cement compatible polymer dispersions are aqueous polymer dispersions based on styrene and/or pure acrylate. Phthalocyanine and quinacridone pigments are particularly suitable as organic pigments.
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Cited Art Landscape
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