| abstract |
To provide a fluorinated ether composition capable of satisfying both high lubricity and high adhesive property, a lubricant, surface modifier or surfactant containing the fluorinated ether composition, and a liquid composition containing the fluorinated ether composition. The fluorinated ether composition comprises a fluorinated ether compound (A) represented by (X) n —Y A —(Z) m and a fluorinated ether compound (B) represented by (X) s —Y B —(Z) t , wherein the content of the fluorinated ether compound (A) is from 15 to 80 mass % to the total amount of the fluorinated ether compound (A) and the fluorinated ether compound (B), and in the above formulae, X is HO—CH 2 —P 1 -[(C a F 2a O) b (CFQ 1 CF 2 O) c ]—, Z is R—P 2 —[(C d F 2d O) e (CFQ 2 CF 2 O) f ]—, n is 5 or 6, m is an integer of from 0 to 10, n+m is an integer of from 5 to 16, s is an integer of from 0 to 4, t is an integer of from 0 to 10, s+t is an integer of from 2 to 14, and each of Y A and Y B is a linking group. |