Patent ID: 8048953

Claim:
A polymer having at least one urea linkage 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): R f (CH 2 CF 2 ) p (CH 2 CH 2 ) q (R 1 ) r —XH Formula (I) wherein p and q are each independently an integer of 1 to 3; r is 0 or 1; X is —O—, —NH— or —S—; R 1 is a divalent radical selected from the group consisting of —S(CH 2 ) n —, n is an integer of 2 to 4; s is an integer of 1 to 50; R 2 , R 3 , and R 4 are each independently hydrogen or an alkyl group containing 1 to 6 carbon atoms; and R f consists of a linear or branched chain perfluoroalkyl group having 4 to 6 carbon atoms; and (ii) reacting with (c) water, a linking agent, or a mixture thereof, said polymer providing cleanability and hydrophilicity stain release to substrates treated with said polymer.