Covering material, for instance for floorings
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United States of America Patent
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Mar 23, 2010
Grant Date -
May 18, 2006
app pub date -
Nov 18, 2005
filing date -
Nov 18, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A stratified-structure laminar covering material, which can be used for example as a flooring for sports facilities, comprises an outermost layer, a bottom layer, and an intermediate layer set between the outermost layer and the bottom layer. The aforesaid layers comprise a matrix constituted by a mixture of polyolefin and thermoplastic elastomer, the matrix being substantially identical for all three layers. The matrix of the outermost layer is substantially free from fillers and has a first value of density. The bottom layer contains fillers so as to have a second value of density greater than said first value of density, and the intermediate layer contains fillers so as to have a third value of density intermediate between the first value of density of the outermost layer and the second value of density of the bottom layer.
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