FLUORINE-CONTAINING ETHER COMPOSITION, METHOD FOR PRODUCING SAME, COATING LIQUID, BASE MATERIAL HAVING SURFACE TREATMENT LAYER, AND METHOD FOR PRODUCING SAME

摘要

To provide a fluorinated ether composition useful for surface treatment to impart water/oil repellency to the surface of a substrate, a method for producing the fluorinated ether composition, and a coating liquid containing the fluorinated ether composition, as well as a substrate having a surface-treated layer, and a method for producing the same. Said composition comprises at least two fluorinated ether compounds which are represented by A-O-Q-(C b F 2b O) d -X-O-B 10 and which are different in B 10 . X is a divalent organic group having no CF 2 O. B 10 is -CH 2 CH 2 CH 2 SiL m R n , -CH 2 CH(SiL m R n )CH 3 , -CH 2 CH=CH 2 or -CH=CHCH 3 . A is a perfluoroalkyl group or group B 10 . Of the total of group B 10 in said composition, the proportion of -CH 2 CH 2 CH 2 SiL m R n is from 90 to 99 mol%, and the proportion of -CH=CHCH 3 is from 1 to 10 mol%. L is a hydrolyzable group, and R is a monovalent hydrocarbon group. b is an integer of from 1 to 10, and d is an integer of from 1 to 200.