Abstract: A process for the preparation of polymeric condensates, wherein the reaction mixture is fed at least once during the condensation reaction through a zone of high energy density which has an energy density of at least 105 J/m3.

Abstract: A process for the preparation of polymeric condensates, wherein the reaction mixture is fed at least once during the condensation reaction through a zone of high energy density which has an energy density of at least 105 J/m3.

Abstract: The invention relates to a fire drill and training facility with at least one fire room in which at least one simulation fire, in particular for an item of furniture, an installed object, a piece of equipment or the like is arranged, with a flame generation device actively connected to at least the simulation fire, a smoke generation device with at least one outlet in the fire room, a ventilation device at least for the fire room, an emergency shutdown device at least for the flame generation device and smoke generation device, a parameter determination means and a control and evaluation device actively connected to the flame generation device, smoke generation device, ventilation device, emergency shutdown device and the parameter determination means, in which the parameter determination means comprises a plurality of sensors for determining the behaviour of the fire drill and training facility, in particular the operational functioning of the flame generation device, smoke generation device, ventilation dev

Abstract: The present invention relates to phosphorus-containing compounds based on 1-hydroxypropane-1,3-diphosphonic acid and to the acid itself of general formula (I) ##STR1## in which M.sup.1, M.sup.2, M.sup.3, M.sup.4 and M.sup.5, independently of one another, each denote a radical from the series hydrogen, alkali metal, an equivalent of ammonium, alkyl- or hydroxyalkyl-substituted ammonium,a process for the preparation thereof, novel intermediates and the use thereof as a corrosion inhibitor, scale inhibitor and as a flame retardant.