Patent ID: 7396866

Claim:
A composition comprising a material prepared by: (a) forming a mixture of (1) a thermoplastic polymer, and (2) a fluorochemical ester composition of the formula I: C 4 F 9 SO 2 N(Q 1 )(CH 2 ) a —O—C(O)—(CH 2 ) n —C(O)O(CH 2 ) b NQ 2 SO 2 C 4 F 9 (I) wherein Q 1 and Q 2 which may be the same or different are each a hydrogen or an alkyl group of 1 to 4 carbon atoms; a is an integer from 2 to 11; b is an integer from 2 to 11; and n is from 10 to 20; and (b) melt extruding the mixture.