Methods of using improved bentonite barrier compositions and related geosynthetic clay liners
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United States of America Patent
Stats
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Sep 12, 2017
Grant Date -
Aug 30, 2012
app pub date -
Jan 27, 2012
filing date -
Jan 28, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to improved bentonite barrier compositions having enhanced low permeability over time in containment applications. Of the many embodiments provided herein, one embodiment includes a method comprising: providing a bentonite barrier composition comprising: bentonite; and a polyanionic low molecular weight polymer; and forming a containment using the bentonite barrier composition to provide at least partial separation for a containment from its environment.
First Claim
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International Classification(s)
- 2012 Application Filing Year
- C04B Class
- 940 Applications Filed
- 840 Patents Issued To-Date
- 89.37 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C04B Class
- 24.26 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 12, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 12, 2029 |
