| abstract |
A compound of the formula <IMAGE> (I) or <IMAGE> (II) wherein R is alkyl of 8-22 carbon atoms in the alkyl chain or hydroxyalkyl of 2-22 carbon atoms; and R' and R'' each independently is hydrogen or C1-C20-alkyl provided that R' and R'' are not simultaneously hydrogen, and R' and R'' in total have 8-20 carbon atoms; and in I, x is 0.5-5 and y is 5-50; and in II, z is freely selectable with the proviso that the sum total of all x for a given z is 0.5-5 and the sum total of all y for a given z is 5-50; and m is 1 or 2. |