Rhodia Operations

Robert Eberhardt

Eric Perin

Composite materials having high cohesive strength, formed from at least one polymer and from at least one compound selected from among mineral oxides, aluminosilicates and active carbon, are characterized by a mean particle size of at least 100 mm, a pore volume (Vd1) formed by pores having a diameter ranging from 3.6 to 1,000 nm, equal to at least 0.2 cm/g, a cohesive strength such that its content of particles having a size of less than 100 mm, obtained after being subjected to an air pressure of 2 bar, of less than 1.5%, preferably 0.0%, by volume; such composite materials are formed into useful liquid supports, catalyst supports, additives, or liquid or gas filters, in particular into cigarette filters.

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Malterdingen, Germany

Robert Eberhardt