Patent ID: 6252107
Filing Date: 2001-06-26
Classification: C07C

Abstract:
A carboxy amphoteric complex which conforms to the following structure:A.sup.- B.sup.+whereinA is R.sup.1 --O--C(O)--R.sup.2 --C(O)OR.sup.1 is CH.sub.3 --(CH.sub.2).sub.n --O--(CH.sub.2 CH.sub.2 O).sub.a --(CH.sub.2 CH(CH.sub.3)O).sub.b --(CH.sub.2 CH.sub.2 O).sub.c --;n is an integers ranging from 7 to 21;a and c are integers independently ranging from 0 to 20, with the proviso that a+b be greater than 5;b is an integer ranging from 0 to 20;R.sup.2 is selected from the group consisting of--CH.sub.2 --CH.sub.2 --,--CH.dbd.CH--,and ##STR7##and B isR.sup.3 --N.sup.+ (H)--(CH.sub.2 CH.sub.2 C(O)O.sup.- M.sup.+).sub.2R.sup.3 is selected from the group selected from CH.sub.3 --(CH.sub.2).sub.d -- and CH.sub.3 --(CH.sub.2).sub.e --O--;d is an integer ranging from 7 to 19;e is an integer ranging from 7 to 19;M is selected from Na, K, and Li.