Patent ID: 8742022

Claim:
A coating composition comprising: a solvent, a polymerizable resin composition; a non-ionic unpolymerizable surfactant in combination with a polymerizable surfactant, the surfactants having an hydrophilic lipophilic balance ranging from 2 to 6; wherein the total amount of the surfactants is greater than 10 wt-% and ranges up to 25 wt-% solids; and an additive having the formula: Ri-(NHC(O)XQRf), —(NHC(O)OQ(A)p), —(NHC(O)X(C 2 H 4 O) i R wherein Ri is a residue of a multi-isocyanate; X are each independently O, S or NR′, where R′ is H or lower alkyl of 1 to 4 carbon atoms; Q is independently a connecting group of valency at least 2; Rf is a monovalent perfluoropolyether moiety composed of groups comprising the formula F(RfcO)xCdF2d-, wherein each Rfc independently represents a fluorinated alkylene group having from 1 to 6 carbon atoms, each x independently represents an integer greater than or equal to 2, and wherein d is an integer from 1 to 6; A is —XC(O)C(R2)═CH2, where R2 is a lower alkyl of 1 to 4 carbon atoms or H or F; R is an alkyl or alkenyl group having at least 6 carbon atoms; p is 2 to 6; and j ranges from 7 to 50.