Mineral filler compositions, methods for making mineral filler compositions and carpets manufactured from same
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United States of America Patent
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Apr 17, 2018
Grant Date -
Sep 25, 2014
app pub date -
Mar 17, 2014
filing date -
Mar 15, 2013
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Abstract
Disclosed are calcium carbonate mineral filler compositions, wherein the composition has a mineral content characterized by a weight ratio of calcium to magnesium of at least 10:1, and wherein the composition is at least substantially free of calcium oxide. Also disclosed are methods for making a mineral filler composition from a renewable biological source of calcium carbonate. Also disclosed are carpets comprising the mineral filler from renewable biological source produced by the methods disclosed herein.
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