| abstract |
Disclosed are compounds of the formula (1)n wherein R * and R ** are C 2-12 alkyl, each of A 1-5 is C 2-4 alkyl, each of R 1-5 is -H or (C 9-21 alkyl or alkenyl)-C(O)-, each of Q 1-3 is -H,-CH 3 , -C 2 H 5 or -CH 2 CH 2 COOH; r is 0-2; i, j and each k are each 0-1, and (i+j+k)is 0-4; and n is the number of moles of monovalent anion A to provide zero net charge. |