Abstract: Process for surface activation and/or devulcanization of sulfur-vulcanized rubber particles. In order to break the sulfur bridges and to reduce the sulfur, the rubber particles are treated in a biotechnological manner in a medium with mesophilic anaerobic and/or optionally anaerobic and/or microaerophilic bacteria and/or with one or more enzyme systems of such bacteria. The thus-treated activated rubber particles show improved vulcanization properties in comparison with non-treated rubber particles, and permit the production of better quality articles.

Abstract: Process for surface activation and/or devulcanization of sulfur-vulcanized rubber particles. In order to break the sulfur bridges and to reduce the sulfur, the rubber particles are treated in a biotechnological manner in a medium with mesophilic anaerobic and/or optionally anaerobic and/or microaerophilic bacteria and/or with one or more enzyme systems of such bacteria. The thus-treated activated rubber particles show improved vulcanization properties in comparison with non-treated rubber particles, and permit the production of better quality articles.

Abstract: Process for surface activation and/or devulcanization of sulfur-vulcanized rubber particles. In order to break the sulfur bridges and to reduce the sulfur, the rubber particles are treated in a biotechnological manner in a medium with mesophilic anaerobic and/or optionally anaerobic and/or microaerophilic bacteria and/or with one or more enzyme systems of such bacteria. The thus-treated activated rubber particles show improved vulcanization properties in comparison with non-treated rubber particles, and permit the production of better quality articles.

Abstract: A nozzle for a windshield washing system of a motor vehicle is proposed, in which the nozzle insert can be inserted into the nozzle housing at different angles. In particular, the nozzle housing has a fine toothing, via which different inclination angles of the nozzle insert are fixed.

Abstract: A nozzle for a windshield washing system of a motor vehicle is proposed, in which the nozzle insert can be inserted into the nozzle housing at different angles. In particular, the nozzle housing has a fine toothing, via which different inclination angles of the nozzle insert are fixed.

Abstract: A cleaning device for a window/headlamp cover (5) of a motor vehicle has two washer nozzles (3, 4) which are manufactured as ajoint component (2) and in each case produce strip-shaped spraying regions (8, 9) on the window/headlamp cover (5). The spraying regions (8, 9) are arranged one above the other and thus complement one another. This means that a large region of the window/headlamp cover (5) is wetted with washing fluid without washing fluid falling alongside the window/headlamp cover (5).

Abstract: A method for reprocessing scrap rubber, which produces reclaimed rubber from comminuted scrap rubber after devulcanization, in a biotechnology-type of process, by holding the comminuted scrap rubber in a bacterial suspension of chemolithotropic microorganisms with a supply of air, until sulphur as an elementary sulphur and/or sulfuric acid is separated from the remaining replasticized reclaimed rubber. This biotechnological reprocessing obtains reclaimed rubber and sulphur in a simplified manner which products can be reused.