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 a boron tetrafluoride salt, free of or having only small amounts of an inorganic acid, an inorganic acid salt or a mixture thereof. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition also is disclosed.
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 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 is also disclosed.
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 a hexafluorosilicate salt, and free of or having only small amounts of an inorganic acid, an inorganic acid salt or a mixture thereof. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition is also disclosed.
Abstract:
Flexible metal foil catalyst members (1), having primary surfaces (2) and optionally corrugated regions (4), suitable for use in catalytic devices for combustion engine emission control are prepared by electrophoretic deposition using an aqueous slurry of catalyst support particles. The deposited support layer (8) is of uniform thickness (10) and stable surface area or contains step-like differences in thickness (11), and is preferably in direct contact with thin oxide film (9). The support may then be impregnated with catalytic species and assembled into a catalytic device. The catalyst members are especially suitable for use in automotive applications, and more especially in electrically heated catalytic devices.
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 phosphoric acid, and from about 0.1 to about 4 % by weight of a source of fluoride ions. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition also is disclosed.
Abstract:
An electrode composition for use as an electrode in a non-aqueous battery system. The electrode composition contains an electrically active powder in a solid polymer and, as a dispersant, a polyester polyamine copolymer that is electrochemically inert. The dispersant is electrochemically inert at 2.5-4.5 volts.