| abstract |
The invention relates to a composition comprising: a) 10 to 60 % by weight of one or more urea components having a number average molecular weight Mn above 350 g/mol, and b) 40 to 90 % by weight of one or more carboxylic acid components according to formula (I): HO-R 1 -COOH, wherein R 1 represents an organic group having 3 to 75 carbon atoms, and wherein the % by weight are calculated on the sum of components a) and b). |