A process prepares an aqueous alkali metal acrylate solution by distillatively removing acrylic acid from a mixture as vapors and taking up the vapors immediately from the gas phase into an aqueous alkali solution. An information transfer protocol server provides a user interface for manual processing of information transactions. The clutch mechanism includes a pin interfitting into a notch, and biased into the notch with a spring. The first channel is terminated only after synchronisation of the UE to the second channel has been achieved.