Abstract: Granulated activated carbon is produced by an improved process which involves carbonizing pellets of a styrene-divinyl benzene copolymer matrix with concentrated sulfuric acid at temperatures up to at least 750.degree. C., followed by activation at temperatures of 800.degree. C. to 900.degree. C.

Abstract: The present invention relates to a process for the decontamination of chemical warfare agents which are present on the skin or have penetrated below the surface into the skin, or materials contaminated therewith, by a micro-emulsion which contains a C.sub.8 -C.sub.14 alkane, an anionic surfactant, an aliphatic C.sub.3 -C.sub.10 alcohol, and water, and to which possibly a wetting agent and/or antifreeze components such as antifreeze agents, NaCl or CaCl.sub.2 are also added.

Abstract: A method is described for the decontamination of equipment contaminated with chemical warfare agents. The warfare agents are not destroyed by aggressive chemicals, as is usual, but instead are extracted using a microemulsion and rinsed off.

Abstract: An adsorption filter to prevent the emission of hydrocarbons from the tanks of motor vehicles comprises a highly air-permeable, substantially stable, three-dimensional bearer structure of wires, monofilaments or webs to which is secured a layer of granular, especially bead-structured adsorbent particles with a diameter of 0.1 to 1 mm, whereby the size of the micropores of the adsorbent is reduced in the direction of flow of the hydrocarbons emitted.

Abstract: Porous spherical shaped small bodies of activated carbon having a diameter of from 0.1-1 mm and an inner surface of from 600-2000 mg.sup.2 /m made from milled and already activated carbon particles of a size below 60 .mu.m linked together by bridges from 10-100%, of their weight of water insoluble synthetic resins added as aqueous dispersions, and, as a result of the irregular, often splinterlike shape of the carbon particles, having gaps between these particles spread throughout the whole mass of the porous body, the size of the gaps being of the same order of magnitude as the particles themselves.

Abstract: Disclosed is a filter sheet material for passenger cabins in motor vehicles, especially for the removal of unpleasant exhaust fumes, whereby on one and the same air permeable support material, a particle-filtering layer as well as an adsorption filter layer is provided. The adsorptive material in the adsorption filter layer is selected from active carbon particles, activated carbonized carbon particles, molecular sieves, porous polymer adsorbers and carbonized ion-exchangers. The particle filtering layer comprises a micro-fibre agglomeration.

Abstract: A filter material suitable for making protective clothing comprising an air-permeable pliable textile support, substantially spherical adsorber particles, and an adhesive discontinuously securing said particles to said textile support, wherein the adsorber particles comprise a copolymer based mainly on styrene and divinylbenzene, eventually crosslinked by CH.sub.2 -bridges.

Abstract: The activated charcoal filter layer for gas masks essentially is formed of superimposed, highly air-permeable surface structures with a layer of granular or spherical activated charcoal particles with a diameter of 0.1 to 1 mm affixed to them, and its pressure drop is less than 10 mm water column at a thickness of 4 cm with a circular cross-section of 100 cm.sup.2 at an air flow of 1 1/sec.

Abstract: A method of manufacturing microspherules from activated carbon, including placing active-carbon particles of less than 100 .mu.m in size in a pelletizer equipped with a vortexer, incrementally adding an aqueous dispersion of a water-insoluble synthetic resin until microspherules of the desired size form, turning off the vortexer but allowing the pelletizer to continue operating, immediately powdering the microspherules off, and drying the microspherules.

Abstract: In the fighting of fires or protection of objects from fire by applying thereto water, the improvement which comprises dispersing in the water particles of a cross-linked water-insoluble but hightly water-swellable acrylic acid derivative polymer in an amount insufficient to bring the viscosity above 100 mPa's. Advantageously, the particles are present in an amount such that after swelling the swollen particles hold 60 to 70% by weight of the total water, the particles are from 0.1 to 3 mm in diameter and are present in from 0.1 to 0.6% by weight of the water, the polymer being a copolymer of an acrylic acid, the water containing silicic acid and/or a silicate as well as sodium, potassium or ammonium ions. The water is freely pumpable but the swollen particles adhere to surfaces they contact rather than running off rapidly.

Abstract: The activated charcoal filter layer for gas masks contains a highly air-permeable, three-dimensional carrier framework essentially stable in shape, formed of wires, monofilaments or stays, to which a layer of granular, particularly spherical activated charcoal particles with a diameter of 0.1 to 1 mm is affixed. The carrier framework can be composed of wires, monofilaments or stays, the distance between them being at least twice as great as the diameter of the activated charcoal particles. The carrier framework can also be a large-pore reticulated polyurethane foam which has a weight of 20 to 60 g/l and pores with a diameter of 1.5 to 3 mm. The carrier framework can furthermore consist of wire netting or wire mesh arranged in layers, as well as of plastic or wire spirals with a length equal to and up to 10 times their diameter, or of wires or monofilaments with a length of 2 to 10 mm, which are held by twisted metal or plastic wires and project perpendicular from this axis in the shape of a spiral staircase.

Abstract: A sheet filter made up of a flat textile article carrying micrometric particles of a resistant and/or adsorptive additive, the textile article made up of fibers which upon heating become temporarily adhesive without fusing. Advantageously the textile article is a nonwoven fibrous fleece or a pile fabric; if a fleece, a second fleece can be placed over the additive particles so heating unites the fleeces as well as adhereing the particles.

Abstract: The adsorption filter has a highly air-permeable, three-dimensional carrier framework essentially stable in shape, to which a layer of granular adsorber particles with a diameter of 0.1 to 1 mm is affixed. The carrier framework can be composed of wires, monofilaments or stays, the distance between them being at least twice as great as the diameter of the adsorber particles. The carrier framework can also be a large-pore reticulated polyurethane foam which has a weight of 20 to 60 g/l and pores with a diameter of 1.5 to 3 mm. In spite of a very slight pressure drop, the filter performance is excellent.

Abstract: In a particulate additive for water for fire fighting containing a strongly swelling water-insoluble high molecular weight polymer as gelatinizing agent, the improvement which comprises a water-soluble release agent which does not cause the particles of said gelatinizing agent to swell, the particles of the gelatinizing agent being encased or dispersed in the release agent. Suitable release agents include polyethylene glycol, diammonium biphosphate, sugars, mannitol, etc. The gelatinizing agent may be a moderately cross-linked water-insoluble acrylic or methacrylic acid copolymer.

Abstract: The adsorption filter has a highly air-permeable, three-dimensional carrier framework essentially stable in shape, to which a layer of granular adsorber particles with a diameter of 0.1 to 1 mm is affixed. The carrier framework can be composed of wires, monofilaments or stays, the distance between them being at least twice as great as the diameter of the adsorber particles. The carrier framework can also be a large-pore reticulated polyurethane foam which has a weight of 20 to 60 g/l and pores with a diameter of 1.5 to 3 mm. In spite of a very slight pressure drop, the filter performance is excellent.

Abstract: A method of making activated carbon microspherules including kneading activated carbon particles of a size below 100 .mu.m, together with a dispersion of a water-insoluble synthetic resin to form an intimate mixture; pressing the mixture through a screen having holes related to the size of the desired microspherules; powdering the pressed material; and granulating and drying the resulting microspherules.

Abstract: The present invention involves an inner shoe material with adsorbent properties, whereby activated carbon particles are fixed as the adsorbent material by means of an adhesive substance in a punctiform manner to the side of the material facing away from the foot. The inner shoe material of the invention can be designed as inside lining, insoles, slipsoles, as inner sole of the shoe or as a covering material for the inner sole of the shoe. The inner shoe material of the invention can e.g. be used for combat boots with integrated C-protection or for safety boots with protection against aggressive chemicals. The inner shoe material has the advantage that it exhibits a high degree of scuff resistance on the one hand and the adsorbent activated carbon is freely accessible to the substances to be adsorbed, on the other.

Abstract: Textile flat-shaped structures exhibiting specific properties, such as flame-resistance or adsorbing capacity, are required for technical purposes, said structures being at the same time characterized by a high flexibility and tensile strength, as well as good wearing characteristics when used for protective suits. This is achieved by the invention by yarns that are sheathed with active ingredients, such as adsorbents, fire-proofing agents, ion-exchangers, decontaminating agents for chemical combat agents, catalysts or fixed enzymes. The active ingredients are adhered to the surface of the yarn or embedded in a binding agent. The sheathing may be additionally braided or flocked.

Abstract: The invention relates to a waterproof and air-tight, moisture-conducting textile material (1) which has a coating (3) of coagulated polyurethane containing preferably a great number of micropores, and which has a water vapor permeability of more than 5000 g/m.sup.2 in 24 hours.

Abstract: A filter sheet material consisting of an air-permeable, pliable, especially textile support which is covered only partially with a uniformly distributed adhesive on which adsorber particles, especially active carbon beads, are fixed and the use of such filter materials containing active carbon as adsorbent for protective suits.