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US 2014/0318708 A1Published application
Methods of making ground containment liners
AssigneeNew Pig Corporation
InventorBeth P. Powell
Life of this patent
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Abstract
The present invention provides methods of making containment liners to protect the environment from spills and leaks at oil and/or gas production sites and other sites. The containment liners comprise a first felt geotextile layer and a polymeric barrier layer embedded partially into the felt geotextile layer.
Claims20
A method of making a containment liner comprising:
- providing at least one felt geotextile layer;
- and
- extruding a molten polymeric barrier layer material adjacent to the at least one felt geotextile layer and applying pressure between the molten polymeric barrier layer material and the at least one felt geotextile layer to thereby embed at least a portion of the polymeric barrier layer material into the at least one felt geotextile layer.
Dependencies are inferred from the claim text.