Clay mixture having contamination resistance
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United States of America Patent
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May 19, 1992
Issued Date -
N/A
app pub date -
Dec 21, 1990
filing date -
Nov 21, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mixture of swellable clay, such as bentonite, is charged with an additive which provides an excess of single-charged cations which tend to neutralize the deleterious effects of double-charged cations which are naturally present in seawater and industrial waste. The mixture is deposited on and carried by a sheet to facilitate its uses as a pond liner or a foundation sealant.
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