Patent ID: 7129366

Claim:
A compound having a formula selected from the group consisting of the following formulae (6) and (8) through (12): wherein n is an integer from 5 to 19, m is an integer from 0 to 2b+x, inclusive, wherein b is the maximum number of unsaturated bonds, and wherein a double bond is assigned as 1 and a triple bond is assigned as 2, and R 1 , R 2 , and R 3 , are chemically possible groups to form the structures above, provided that R 2 R 3 is a polar moiety, x is the number of R 1 groups (same or different) at any possible position (x is an integer≦2n−m), and the salt thereof, and provided that when the compound has formula (6), m is 0, and (R 1 ) x are all hydrogen when x is not 0, then R 2 R 3 is not carboxyl.