FLOOR COVERING
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United States of America Patent
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Issued Date -
Dec 12, 2013
app pub date -
Jan 17, 2012
filing date -
Feb 23, 2011
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Abstract
A floor covering comprising a first layer of elastomeric material and a second layer of elastomeric material. Both of the first and second layers being provided with fillers, where the fillers are chosen in such a way that, when subjected to a temperature change, the second layer has a greater coefficient of expansion at least in one direction than the first layer. A further layer is arranged between the first layer and the second layer.
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