Patent ID: 7504469

Claim:
A polyester-modified polysiloxane of the general formula (I) wherein A is an alkyl group having 1 to 8 carbon atoms, Z is selected from the group consisting of an alkylene group having 1 to 14 carbon atoms, an alkylene ether or alkylene thioether group having 2 to 14 carbon atoms and an alkylene-amide group having 2 to 14 carbon atoms, R is an aliphatic and/or cycloaliphatic and/or aromatic polyester group containing at least 3 wherein the at least 3 groups in the radical R are joined to one another by divalent hydrocarbon groups having 2 to 12 carbon atoms; and wherein R has a weight-average molecular weight of 200 to 4000 g/mol, with no Zerewitinoff hydrogen atoms, Q is a group which contains no Zerewitinoff hydrogen atoms and is a radical —(O)—(CO) p —(NH) q —(CHR 1 ) r —(CHR 2 ) s —(O) t —CR 3 R 4 R 5 , wherein p and q=1, r, s, and t=0, R 1 and R 2 independently of one another are hydrogen or a linear or branched alkyl radical having 1 to 18 carbon atoms, R 3 is a linear alkyl radical having 1 to 18 carbon atoms, and R 4 and R 5 are hydrogen; and, m is 3 to 200 and o+n=2, with both o and n being other than zero and o and n deviate on average in each case from a value of 1 by not more than 0.5.