Adsorbing material and use thereof
AssigneeBlücher GmbH
InventorErnest de Ruiter
Life of this patent
Estimating the term…
Abstract
Disclosed is an adsorbing material (1), particularly for producing protective suits, comprising an especially planar supporting material (2), an at least substantially air-impermeable, steam-permeable barrier layer (3), and an adsorbing layer (4). The baffler layer (3) is applied to the supporting material (2) and is used as an adhesive layer for the adsorbing layer (4) that is disposed on the face of the barrier layer (3), which lies opposite the supporting material (2). The baffler layer (3) is provided with a steam permeability of at least 20 l/m2 per 24 h at 25° C. and at a thickness of 50 μm.
Claims16
An adsorbing material for producing protective materials, said adsorbing material comprising:
- a sheet-like carrier material;
- an at least essentially air-impervious, water-vapor-pervious barrier layer;
- wherein the barrier layer forms a continuous, uninterrupted layer on the carrier material, the thickness of the barrier layer being in the range from 1 to 500 μm, and
- wherein the barrier layer is permeation resistant to chemical poisons and warfare agents in that it prevents or at least retards the passage of chemical poisons and warfare agents;
- and
- an adsorbing layer based on activated carbon,
- wherein the barrier layer is atop the carrier material and also serves as a bonding layer for the adsorbing layer disposed on that side of the barrier layer which is remote from the carrier material and wherein the barrier layer is formed as a multilayered laminate or as a multilayered composite comprising at least three interconnected layers or plies, and
- wherein the multilayered laminate or the multilayered composite comprises a core layer and two outer layers connected to the core layer, the corner layer being formed on the basis of a cellulose- or polyurethane-based polymer and the two outer layers connected to the core layer being formed on the basis of a polyurethane.
An adsorbing material for producing protective materials, said adsorbing material comprising:
- a sheet-like carrier material;
- an at least essentially air-impervious, water-vapor-pervious barrier layer,
- wherein the barrier layer forms a continuous, uninterrupted layer on the carrier material, the thickness of the barrier layer being in the range from 1 to 500 μm, and
- wherein the barrier layer is permeation resistant to chemical poisons and warfare agents in that it prevents or at least retards the passage of chemical poisons and warfare agents;
- and
- an adsorbing layer based on activated carbont,
- wherein the barrier layer is atop the carrier material and also serves as a bonding layer for the adsorbing layer disposed on that side of the barrier layer which is remote from the carrier material and wherein the barrier layer is formed as a multilayered laminate or as a multilayered composite comprising at least three interconnected layers or plies,
- wherein the multilayered laminate or the multilayered composite comprises a core layer and two outer layers connected to the core layer, the core layer being formed on the basis of a cellulose- or polyurethane-based polymer and the two outer layers connected to the core layer being formed on the basis of a polyurethane,
- said adsorbing material offering permeation resistance to the chemical warfare agent bis-[2-chloroethyl]-sulfide (mustard gas), measured according to CRDC-SP-84010, method 2.2, allowing not more than 4 μg/cm2 per 24 h when the barrier layer is 50 μm in thickness.
Dependencies are inferred from the claim text.