The use of precipitating agent - a concentrate for the preparation of drying plasters

摘要

The use of precipitating agent - concentrate containing 30 to 60 w -% of an organic precipitating agent from the group consisting of the polyethyleneimines, or of the low molecular weight di -, - or tetraamines with a molecular weight & 200, as well as 10 to 40 w -% aqueous ammonia solution, in each case based on the total weight of the concentrate, for the production of drying plasters.