Abstract: A supporting device for a filter device including a flat-woven material manufactured of warp devices and weft devices, which form a woven surface, wherein the flat-woven material shows, in two opposite end portions, two free ends of warp devices or weft devices protruding from the woven surface. The flat-woven material is shaped to form a predetermined three-dimensional shape with a free cross-section, and the free ends overlap and are interconnected. The present method provides for shaping the flat-woven material around a molding part until the free ends of the two end portions overlap. The ends are interconnected. A filtering device accordingly includes a supporting device and a filter device.

Abstract: A wire mesh layer, including warp wires and weft wires, wherein the warp wires and the weft wires form woven meshes and open up a woven surface. A connecting member is provided, which includes a thermoplastic material. The multilayered product is provided having such a wire mesh layer and a further layer, wherein the wire mesh layer and the further layer are connected by the thermally deformed connecting member. In a method of manufacturing such a multilayered product, the wire mesh layer and the further layer are placed on top of one another in a predetermined orientation. Due to the thermal deformation of the thermoplastic material of the connecting member, the wire mesh layer and the further layer will be interconnected.

Abstract: In a process for preparing 4-amino-5-chloro-1-phenylpyridazin-6-one by reacting 4,5-dichloro-1-phenylpyridazin-6-one with aqueous ammonia in the presence of a catalyst, the catalyst used is soluble in the aqueous alkaline reaction medium but is essentially insoluble in the reaction medium which has been acidified after removal of the 4-amino-5-chloro-1-phenylpyridazin-6-one. The process of the present invention makes it possible for the catalyst to be recovered and reused in a simple manner.

Abstract: Process and device for continuously winding a plurality of longitudinally cut paper webs at machine speed by using a device that includes support rollers and at least one pair of disks associated with each of the support rollers, such that the at least one pair of disks is arranged concentrically with and rotates independently of, its associated support roller. The at least one pair of disks includes a first winding device having a first cardboard tube disposed thereon and a second winding device having a second cardboard tube disposed thereon, such that each of the support rollers include at least one of the pair of disks, which are concentrically arranged with and which rotate independently of the support rollers.

Abstract: A redox electrode for determining nitrous acid and nitrosyl compounds in aqueous, acidic solution consists of a metallic conductor on which an n-conducting metal oxide surface is present.

Abstract: Pyridazinone derivatives of the formula I ##STR1## where R.sup.1 is hydrogen, unsubstituted or substituted alkyl, cycloalkyl, or unsubstituted or substituted phenyl or is carboxyl, hydroxymethyl or --CH.sub.2 O--COR.sup.3, where R.sup.3 is alkyl, or is --CH.sub.2 O[CH.sub.2 CH.sub.2 O].sub.p R.sup.4, where R.sup.4 is alkyl or phenyl and p is 1, 2 or 3,R.sup.2 is phenyl, unsubstituted or substituted vinyl or 2-propenyl,X is halogen,m is 1 or 2 andn is 1, 2, 3 or 4, and fungicides containing these compounds.

Abstract: The manufacture of substantially pure 4-amino-5-chloro-1-phenylpyridaz-6-one by reaction of 4,5-dichloro-1-phenylpyridaz-6-one with ammonia in the presence of phenol-4-sulfonic acid.