Adsorption filter material with high adsorption capacity and low breakthrough behavior
AssigneeBlücher GmbH
InventorsHasso von Blücher, Ludovic Ouvry, Stefan Kämper, Michael Moskopp, Ernest de Ruiter, Bertram Böhringer
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Abstract
An adsorption filter material used especially for producing protective materials, such as NBC protective suits, has a first layer, a second layer, and an adsorption layer arranged between the first layer and the second layer. The adsorption layer has a first activated carbon layer with granular or spherical activated carbon particles. The first activated carbon layer additionally contains activated carbon fibers and/or the adsorption layer additionally contains a second activated carbon layer with activated carbon fibers.
Claims38
An adsorption filter material for producing protective materials, comprising:
- first and second layers;
- an adsorption layer arranged between said first and second layers, wherein the adsorption layer includes a first activated carbon layer having activated carbon particles comprising at least one of granules and spherules of activated carbon, said adsorption layer further comprising activated carbon fibers;
- and
- at least one barrier layer between said adsorption layer and at least one of said first and second layers, wherein said barrier layer is designed to be permeable to water vapor and essentially impermeable to gas and air.
An adsorption filter material for producing protective materials, comprising:
- first and second layers;
- an adsorption layer arranged between said first and second layers, wherein the adsorption layer includes a first activated carbon layer having activated carbon particles comprising at least one of granules and spherules of activated carbon, said adsorption layer further comprising activated carbon fibers;
- and
- at least one barrier layer between said adsorption layer and at least one of said first and second layers, wherein said barrier layer comprises one of a multilayer laminate and a multilayer composite comprising several layers of plastic or polymer.
An adsorption filter material for producing protective materials comprising:
- first and second layers;
- an adsorption layer arranged between said first and second layers, wherein the adsorption layer includes a first activated carbon layer having activated carbon particles comprising at least one of granules and spherules of activated carbon, said adsorption layer further comprising activated carbon fibers;
- and
- at least one barrier layer between said adsorption layer and at least one of said first and second layers, wherein said adsorption filter material has a water vapor permeability of at least 10 L/m2 per 24 h with said barrier layer at a thickness of 50 μm.
An adsorption filter material for producing protective materials comprising:
- first and second layers;
- and
- an adsorption layer arranged between said first and second layers, wherein the adsorption layer includes a first activated carbon layer having activated carbon particles comprising at least one of granules and spherules of activated carbon, and a second activated carbon layer comprising activated carbon fibers arranged in said second activated carbon layer;
- and
- wherein said adsorption filter material is a composite material with several successive layers bonded to one another, wherein said adsorption filter material contains the following layers in sequence:
- said first layer, wherein said first layer comprises a textile that has been rendered oleophobic;
- a water vapor-permeable and at least essentially gas-impermeable and air-impermeable barrier layer;
- said adsorption layer, wherein said adsorption layer comprises said first activated carbon layer with said activated carbon particles and said second activated carbon layer with activated carbon fibers;
- and
- said second layer, wherein said second layer comprises a textile layer.
Dependencies are inferred from the claim text.