| abstract |
PROCESSES FOR CLEANING DIRTY METAL SURFACES AND FOR PREPARING AN ALCOXYLATED POLYETHYLEENIMININE, ALCOXYLATED POLYETHYLENIMINE, AQUEOUS COMPOSITION, AND, USE OF AT LEAST ONE ALCOXYLATED POLYETHYLENIMINE. The invention relates to the process for cleaning dirty metal surfaces, characterized in that such cleaning is carried out using a composition comprising at least one alkoxylated polyethyleneimine (B) with a polydispersity Q = Mw/Mn of at least 3.5 and an average molecular weight Mw in the range of 2,500 to 1,500,000 g/mol. |