Patent ID: 7638626

Claim:
A compound of formula (IIa) in which x and y are 4-12 z is a number from 0 to 20; and R 12 is hydrogen or C 1 -C 8 alkyl; R 18 is hydrogen or C 1 -C 8 alkyl; Y is —CO— or C 1 -C 12 alkylene; if Y is —CO—, D′ is C 2 -C 38 alkylene or C 4 -C 60 alkylene interrupted by O; and T is the divalent acyl residue of an aliphatic, cycloaliphatic or aromatic dicarboxylic acid of 2 to 12 carbon atoms; if Y is alkylene, D′ is the divalent acyl residue of an aliphatic, cycloaliphatic or aromatic dicarboxylic acid of 2 to 12 carbon atoms; and T is C 2 -C 38 alkylene or C 4 -C 60 alkylene interrupted by O; R 1 , are independently of each other H or OR 7 , with the proviso that at least one of R 1 or R 13 is OH; the R 7 are independently of each other hydrogen, C 1 -C 12 alkyl or a radical of formula (III), R 8 is hydrogen, C 1 -C 18 alkyl, C 5 -C 12 cycloalkyl, C 2 -C 18 alkenyl, phenyl, C 7 -C 11 -phenylalkyl, C 7 -C 11 alkylphenyl, C 1 -C 18 alkyl substituted by phenyl, OH or halogen; C 1 -C 18 alkoxy, C 5 -C 12 cycloalkoxy, C 3 -C 18 alkenyloxy or COOH; R 9 in formula (III), if Y is —CO—, is C 20 -C 60 alkyl, C 20 -C 60 alkyl substituted by OH and/or interrupted by O, or is C 20 -C 60 alkenyl, or is a group of formula (IV), wherein m is a number from 1 to 20; R 9 in formula (III), if Y is alkylene, is C 20 -C 60 alkanoyl; R 2 , R 3 , R 4 , R 5 and R 6 are independently of each other hydrogen, C 1 -C 38 alkyl which is unsubstituted or substituted by hydroxy or C 1 -C 8 alkoxy; or C 1 -C 38 alkyl which is interrupted by an oxygen atom or a N(C 1 -C 18 )alkyl group; or phenyl or C 7 -C 12 phenylalkyl which are unsubstituted or substituted by hydroxy or C 1 -C 8 alkyl; R 10 is hydrogen, C 1 -C 4 alkyl, Cl, phenyl or a group —OR 7 ; R 11 is hydrogen or methyl; and R 13 is hydrogen, methyl, OH or OR 7 .