Patent ID: 8022134

Claim:
A modified polyaminoamide, wherein at least a part of the amino nitrogens of the modified polyaminoamide carry both (a) a radical R selected from the group consisting of C 1 -C 6 -alkyl, C 6 -C 16 -aryl-C 1 -C 4 -alkyl, and a group Alk-O-A, wherein A is hydrogen or an acidic group selected from B 1 —PO(OH) 2 , B 1 —S(O) 2 OH and B 2 —COOH which may be present in an acidic or anionic form, wherein B 1 is a single bond or C 1 -C 6 -alkanediyl, and B 2 is C 1 -C 6 -alkanediyl, and Alk is C 2 -C 6 -alkane-1,2-diyl, and (b) a moiety of the formula I —(CH 2 —CR 1 R 2 —O-) p A I, wherein A is as defined above, R 1 is independently selected from the group consisting of hydrogen, C 1 -C 12 -alkyl, C 2 -C 8 -alkenyl, C 6 -C 16 -aryl, and C 6 -C 16 -aryl-C 1 -C 4 -alkyl, R 2 is independently selected from hydrogen and methyl, and P is an integer provided that p has a number average of at least 10, wherein the modified polyaminoamide comprises repeating units of the formula II wherein n is an integer from 1 to 20, R 3 are independently from one another C 2 -C 8 -alkanediyl, R 4 is a chemical bond linking two adjacent carbonyl groups or a bivalent organic radical, R 5 is hydrogen, the radical R as defined above or a side chain of the formula I, and R 6 may be an electron pair or is a radical selected from hydrogen, the radical R as defined above, and a side chain of the formula I, provided that at least a part of the moieties carry both the side chain of the formula I and the radical R as the radicals R 5 and R 6 .