| abstract |
A composition comprising a polymer prepared by: reacting (a) at least one diisocyanate, polyisocyanate, or mixture thereof, having isocyanate groups, and (b) at least one fluorinated compound selected from the formula (I): Rf1-L-X wherein Rf1 is a monovalent, partially or fully fluorinated, linear or branched, alkyl radical having 2 to 100 carbon atoms; optionally interrupted by 1 to 50 oxygen atoms; wherein the ratio of carbon atoms to oxygen atoms is at least 2:1 and no oxygen atoms are bonded to each other; L is a bond or a linear or branched divalent linking group having 1 to 20 carbon atoms, said linking group optionally interrupted by 1 to 4 hetero-radicals selected from the group consisting of -O-, -NR-, -S-, -SO-, -SO2-, -N(R)C(O)- wherein R is H or C1-C6 alkyl, and said linking group optionally substituted with CH2Cl; X is an isocyanate-reactive group selected from the group consisting of OH, -N(R)H, and SH wherein R is H or C1-C6 alkyl; and thereafter reacting with (c) water and (d) an isocyanate-reactive non-fluorinated particulate component. |