Abstract: An on-line method for the continuous generation of alkali metal salts includes continuously reacting a source of acidity, a liquid having a low pH value, with a source of alkalinity, a liquid having a high pH value, while continuously monitoring an electrical parameter of the resultant in salt which is indicative of its pH value. The monitored value is used to adjust the relative flow rates of the input liquids so as to dynamically maintain the pH value of the resultant salt within a predetermined range. In the apparatus, the input liquids can be continuously supplied to a reacting element and the conductance of the resultant salt monitored for purposes of providing feedback control signals to adjust one or more flow rates.

Abstract: An on-line method for the continuous generation of alkali metal salts includes continuously reacting a source of acidity, a liquid having a low pH value, with a source of alkalinity, a liquid having a high pH value, while continuously monitoring an electrical parameter of the resultant in salt which is indicative of its pH value. The monitored value is used to adjust the relative flow rates of the input liquids so as to dynamically maintain the pH value of the resultant salt within a predetermined range. In an apparatus, the input liquids can be continuously supplied to a reacting element and the conductance of the resultant salt monitored for purposes of providing feedback control signals to adjust one or more flow rates.

Abstract: An improved chemical protective garment is provided by first forming a multilayer film structure having an inner layer of substantially isotactic oriented polypropylene homopolymer sandwiched between a layer of ethylene-propylene random copolymer and a layer of ethylene-vinyl acetate. The multilayer film structure is then bonded to a two-layer polyester substrate using an elastomeric adhesive. In a preferred embodiment, a barrier material having a layer of ethylene-vinyl alcohol is combined with the multilayer film structure to form a composite, which is then combined with the substrate.

Abstract: A protective garment made of material which includes a high barrier, multi-layer film incorporating EVOH laminated to a spun bonded polyester substrate. The film is a five layer construction with a layer of EVOH in the middle, bracketed by water resistant bonding resin layers and outer layers of polyethylene or polyester. The substrate is formed with low temperature binders and is calendered on both sides, the outer side being calendered much more extensively than the inner side. The material is joined together at pattern edges by thermal bonding under pressure or by a strip of the film thermal bonded to material segments.