| abstract |
Polyesters according to the following formula (I) are described wherein R 1 and R 2 independently of one another are H 3 C-(OC 2 H 4 ) n -(OC 3 H 6 ) m wherein the -(OC 2 H 4 ) groups and the -(OC 3 H 6 ) groups are arranged blockwise and the block consisting of the -(OC 3 H 6 ) groups is bound to a COO group or are HO-(C 3 H 6 ) or HO-(C 4 H 8 ), n is based on a molar average a number of from 40 to 50, m is based on a molar average a number of from 1 to 7, and a + b is based on a molar average a number of from 4 to 9. The polyesters have an advantageous stability in alkaline environment, possess a beneficial solubility and advantageously are clearly soluble in alkaline compositions such as alkaline heavy duty washing liquids and also possess advantageous soil release properties. |