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Foam composition for treating asbestos-containing materials and method of using same

United States Patent

5,743,841
April 28, 1998
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fluoride ions, and a stable foam forming amount of a foaming agent system having both cationic and non-ionic functionality. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition in the form of a foam also disclosed.
Block; Jacob (Rockville, MD), Krupkin; Natalia Vera (Timonium, MD), Kuespert; Daniel Reid (Columbia, MD), Nishioka; Gary Masaru (Pataskala, OH), Lau; John Wing-Keung (North Potomac, MD), Palmer; Nigel Innes (Boca Raton, FL)
W. R. Grace & Co.-Conn. (New York, NY)
08/ 721,857
September 27, 1996
This invention was made with Government support under contract DE-AC02-76CH00016 awarded by the Department of Energy. The Government has certain rights to this invention.