Process for manufacturing a floor covering having a foamed backing formed from recycled polymeric material
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United States of America Patent
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Mar 1, 2005
Issued Date -
N/A
app pub date -
Jul 21, 2000
filing date -
Feb 9, 1994
priority date (Note) -
Expired
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Abstract
The present invention provides a cushioned floor covering having a backing material formed from waste polymeric material and a blowing agent wherein the blowing agent may be activated either before or after the backing material is adhered to the floor covering. The waste polymeric material includes from about 0 to 40 percent aliphatic polyamide material and is granulated, densified and extruded at a temperature that does not exceed the temperature at which the blowing agent would be activated.
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