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US 4,632,847 AGranted
In situ polymeric membrane for isolating hazardous materials
AssigneeIsotek Corporation
InventorsHenry L. Lomasney, John G. Grawe, Vikram K. Sheth
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Abstract
A method and composition for providing, in situ, a polymeric membrane for isolating hazardous materials within an area such as, for example, an asbestos removal job site. The polymer is applied in liquid form to surfaces which are to be protected. Upon cure, a seamless bladder-like membrane is formed which isolates the work area and prevents the spread of airborne, or water-carried particulate. The membrane can then be peeled from the surface and compacted for disposal.
Claims46
A process for isolating asbestos within an area, comprising the steps of
- applying a liquid polymer composition in aqueous dispersion to the surfaces to be protected,
- allowing the liquid polymer composition to coalesce into a water insensitive and insoluble seamless, bladder-like membrane which adheres to the surface to provide a high integrity receptacle capable of receiving and sustaining an influx of bulk asbestos, and which can be removed intact by physically peeling from the surface to which it has been applied,
- peeling the membrane from the surface, and
- compacting the peeled membrane to form a package of sufficient integrity to retain any entrapped asbestos throughout a disposal process.
1 more element
Dependencies are inferred from the claim text.