| abstract |
The present invention comprises fluorinated ethoxylated polyurethanes of formula [R f -(X) n -(CH 2 CHR 1 -O) m -CH 2 CH 2 -O-C(O)-NH] p -A, wherein R f is a C 1 to C 6 perfluoroalkyl; X is a divalent radical; n is 0 or 1; R1 is H or C 1 to C 4 alkyl; m is 1 to 20; p is a positive integer of at least 2; and A is the residue of a polyisocyanate, and methods for altering surface behavior of liquids using such compounds. |