Coating processes – Foraminous product produced – Filter – sponge – or foam
Reexamination Certificate
2005-07-26
2005-07-26
Meeks, Timothy (Department: 1762)
Coating processes
Foraminous product produced
Filter, sponge, or foam
C427S243000, C427S399000
Reexamination Certificate
active
06921553
ABSTRACT:
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 composed of a non-ionic alkyl polyglycoside alone or with additional non-ionic foaming agents. 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.
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Troffkin Howard J.
W.R. Grace & Co.-Conn.
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