HIGHLY SWELLABLE ABSORPTION MEDIUM WITH REDUCED CAKING TENDENCY

摘要

The invention relates to absorption agents with a high swelling capacity whi ch have a reduced tendency to cake in the presence of high air humidity and/or high temperatures. The invention is characterised in that a swellable polyme r is coated with a non-ionic, nitrogen-containing tenside and optionally, a Lewis acid, and caused to react by heating.