초록 ▼

A double-walled leak containment system for an underground storage tank is provided. The underground storage tank is surrounded, in order, by an inner polymeric containment layer, a liquid transmissive textile, and an outer polymeric containment layer. The outer polymeric containment layer is advant

A double-walled leak containment system for an underground storage tank is provided. The underground storage tank is surrounded, in order, by an inner polymeric containment layer, a liquid transmissive textile, and an outer polymeric containment layer. The outer polymeric containment layer is advantageously formed by spray coating the textile.

대표청구항 ▼

A leak containment system of improved tensile, impact and abrasion strength, said system comprising a storage tank surrounded by a liquid transmissive geotextile which is a fabric, further encased by a stretchable, conformable fabric, said stretchable, conformable fabric being coated with, and parti

A leak containment system of improved tensile, impact and abrasion strength, said system comprising a storage tank surrounded by a liquid transmissive geotextile which is a fabric, further encased by a stretchable, conformable fabric, said stretchable, conformable fabric being coated with, and partially impregnated by in the range of about 40 to 70% of its depth, an elastomer which is a polyurethane useful for preparing a fuel-resistant, hydrolysis-resistant containment layer, said elastomer forming an outer polymeric containment layer, said outer layer partially impregnating said stretchable, conformable fabric to form a composite at the interface of said stretchable, conformable fabric and said outer containment layer; and an inner polymeric containment layer disposed between said liquid transmissive geotextile and said storage tank, said inner polymeric containment layer being in direct contact with said geotextile; wherein an unimpregnated portion of said stretchable, conformable fabric retains its fluid transmissive character.