Patent ID: 8067625

Claim:
A fatty acid ester of a polyol containing at least one group Y, which group Y is in the terminal position to the ester function, where Y stands for CF 3 —(CH 2 ) a —O—, SF 5 —, CF 3 —(CH 2 ) a —S—, CF 3 CF 2 S—, [CF 3 —(CH 2 ) a ] 2 N—[CF 3 —(CH 2 ) a ]NH —, or where a stands for an integer selected from 0 to 5, Rf stands for CF 3 —(CH 2 ) r —, CF 3 —(CH 2 ) r —O—, CF 3 —(CH 2 ) r —S—, CF 3 CF 2 —S—, SF 5 —(CH 2 ) r —, [CF 3 —(CH 2 ) r ] 2 N—, [CF 3 —(CH 2 ) r ]NH— or (CF 3 ) 2 N—(CH 2 ) r —, B stands for a single bond, O, NH, NR, CH 2 , C(O)—O, C(O), S, CH 2 —O, O—C(O), N—C(O), C(O)—N, O—C(O)—N, N—C(O)—N, O—SO 2 or SO 2 —O, R stands for alkyl having 1 to 4 C atoms, b stands for 0 or 1, c stands for 0 or 1, q stands for 0 or 1, and r stands for 0, 1, 2, 3, 4 or 5, and where at least one of b and q stands for 1.