Patent ID: 7087708

Claim:
A composition of the formula: (a) H—F m —O—(CH 2 ) 2 —S n —(CH 2 ) 2 —O—H; or (b) H-Z-A-O—(CH 2 ) 2 —S n —(CH 2 ) 2 F 1 (m+1) —O-A-Z 1 —H, wherein C, O, H and S have their normal meaning of carbon, oxygen and sulfur; n is at least 2 and not more than about 8; F is of the formula —O—(CH 2 ) 2 —S n —(CH 2 ) 2 —O-A-; F 1 is of the formula —O-A-O—(CH 2 ) 2 —S n —(CH 2 ) 2—; m is at least 1; Z and Z 1 are the same or different and are oxy or amino; and A is a fatty acid dimer residue.