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US 9,517,596 B2Granted
Ground containment liners
AssigneeNew Pig Corporation
InventorBeth P. Powell
Life of this patent
Estimating the term…
Abstract
The present invention provides containment liners to protect the environment from spills and leaks at oil and/or gas production sites and other sites. The containment liner comprises a first felt geotextile layer and a polymeric barrier layer embedded partially into the felt geotextile layer.
Claims25
A containment liner comprising:
- a first felt geotextile layer comprising polypropylene fibers, polyester fibers, or a combination thereof;
- a second felt geotextile layer comprising polypropylene fibers, polyester fibers, or a combination thereof covering at least a portion of the first felt geotextile layer;
- a first liquid impermeable polymeric barrier layer between the first and second felt geotextile layers partially embedded into the first felt geotextile layer, wherein the first partially embedded polymeric barrier layer extends into the first felt geotextile layer at least 5 percent of a thickness of the first felt geotextile layer and a distance of from 3 to 30 mil;
- a second polymeric barrier layer embedded in the second felt geotextile layer;
- and
- an intermediate layer comprising a continuous, liquid impermeable polymeric layer between the first and second polymeric barrier layers.
3 more elements
Dependencies are inferred from the claim text.