Patent ID: 8664175

Claim:
Polyglycerol partial ester having the structure of Formula (I) with R 1 , R 2 and R 3 independent from each other, equal or different are selected from the group consisting of —OH, —OR 4 , with R 4 a linear, unsubstituted acyl radical with a chain length of from 16 to 22 carbon atoms with the proviso that the fatty acids obtained from the acyl radical by saponification bears an iodine value of smaller than 50, a radical having the structure of general Formula (II) with R 5 a radical having the structure of Formula (I) wherein one of R 1 , R 2 and R 3 being a direct bond to the oxygen of −OR 5 and with X a bivalent organic residue with from 2 to 34 carbon atoms and —OR 5 , with R 5 as described above wherein each molecule of the polyglycerol partial ester comprises at least one of each —OR 5 and a radical having the structure of Formula (II), with the provisos that the polyglycerol partial ester comprises an HLB-value from 2 to 10 and that the polyglycerol obtained by hydrolysis or alcoholysis of the polyglycerol partial ester comprises an average degree of polymerization of from 2 to 8 and at least 1% of the polyglycerol comprises cyclic structures and that at least one R 4 is present in the polyglycerol partial ester.