Patent ID: 8366816
Filing Date: 2013-02-05
Classification: A62B,A62D,B01D,B01J

Abstract:
1. An adsorptive filtering material having integrated particle and aerosol protection and protective performance with regard to biological and chemical noxiants and warfare agents, the adsorptive filtering material having a multilayered construction, the multilayered construction comprising: a support layer, an adsorptive layer associated to and fixed to the support layer, optionally a covering layer disposed on that side of the adsorptive layer that is remote from the support layer, and a particle and aerosol filtering layer, wherein the particle and aerosol filtering layer is provided as an air-pervious textile fabric consisting of textile fibers having fiber diameters in the range of from 10 nm to 1,000 nm and having an areal weight in the range of from 1 to 50 g/m 2 and having pores and meshes bounded by the textile fibers, wherein the ratio of the average pore size or mesh size to the average diameter of the textile fibers is in the range of from 10 to 500 and wherein the textile fabric is produced by electrospinning, meltblow process or a combination of these two processes.