Abstract: Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe (201) composed of a plurality of pipe sections (201a-d), in which trays (202) are arranged, connections (205, 208) for supplying and removing the reaction products and connections (206, 207) for supplying and removing at least one stripping agent in countercurrent to the reaction products. In accordance with the invention, a plurality of successive trays (202) in each case are joined to one another and form at least two inserts (211a-c) which can be removed from the column pipe (201).

Abstract: A process for introducing steam into polymer dispersions or polymer solutions by introducing steam into the lower part of reaction apparatuses and deodorization apparatuses, in particular deodorization columns, which comprises introducing the steam beneath the liquid surface of the dispersion or the polymer solution.

Abstract: The process of the present invention for removing residual volatiles from polymer dispersions by performing first chemical deodorization using an initiator to remove residual monomers and then physical deodorization to remove volatile constituents comprises conducting the chemical deodorization for as long as the decrease in monomers is greater than the increase in secondary components introduced into the dispersion by the initiator, to result reliably in polymer dispersions having a residual volatiles content of less than or equal to 100 ppm.

Abstract: A process for deodorizing and subsequently cooling dispersions or liquids comprisinga) passing steam through the dispersion or liquid to be cooled and held in a vessel (1), said dispersion or liquid being caused to foam up as a result,b) discharging the foam from the top section of the vessel via a nozzle (5) into an evacuated separation vessel (4), the foam being broken in the process,c) condensing the water vapor formed from the foam in a heat exchanger (8) and removing volatile organic components at the same time, andd) returning the broken foam to the vessel (1),in which the steps a) to d) are performed until the dispersion or liquid has been deodorized to the desired extent, wherein, after completion of the deodorization (in accordance with steps a) to d)), the hot dispersion or liquid is discharged from the bottom section of the vessel (1) through the nozzle (5) into the evacuated separation vessel (4), so that the dispersion or the liquid is cooled, the nozzle (5) and the evacuated separation vessel (4

Abstract: A process for cooling a continuously inflowing liquid, in particular a dispersion, in vacuo which comprises subjecting the liquid to a flash evaporation in a separator.

Abstract: A plugging compound for the chemical fastening of anchor bolts, threaded sleeves and screws in drill-holes, comprising a reactive resin and--spatially separated therefrom--a curing agent for the resin, includes from 0.0005 to 2% by weight of a piperidinyl or tetrahydropyrrolyl nitroxide as inhibitor in the reactive resin.