FLUORINATED ETHER COMPOSITION, ITS PRODUCTION METHOD, COATING LIQUID, AND METHOD FOR PRODUCING SUBSTRATE HAVING SURFACE-TREATED LAYER

摘要

A fluorinated ether composition comprising at least two types of fluorinated ether compounds represented by A-O—RF—B, differing in group B, in a proportion of group (5-1) being from 90 to 95 mol % and a proportion of group (5-2) being from 5 to 10 mol % to the total amount of groups B. A is a C1-6 perfluoroalkyl group or B. RF is —(CF2CF2O)b(CF(CF3)CF2O)c(CF2O)d(CF2CF2CF2O)e—, and the binding order of repeating units is not limited. b, c, d and e are each independently an integer of at least 0, and b+c+d+e is from 5 to 150.;—(CF2)aCFXCH2OCH2CH2CH2SiLmRn  Group (5-1);—(CF2)aCFXCH2OCH2CH(SiLmRn)CH3  Group (5-2);—(CF2)aCFXCH2OCH2CH═CH2  Group (5-3);—(CF2)aCFXCH2OCH═CHCH3  Group (5-4)a is 0 or 1, X is F or CF3, L is a hydrolyzable group, R is a hydrogen atom or a monovalent hydrocarbon group, m is an integer of from 1 to 3, n is an integer of from 0 to 2, and m+n=3.

主权项

1. A fluorinated ether composition comprising at least two types of fluorinated ether compounds represented by the following formula (1) differing in group B, in a proportion of a group represented by the following formula (5-1) being from 90 to 95 mol % and a proportion of a group represented by the following formula (5-2) being from 5 to 10 mol % to the total amount of groups B present in the composition:
A-O—RF—B  (1) in the formula (1), the symbols are as follows: A: a C1-6 perfluoroalkyl group, or B; RF: a linking group represented by the following formula (2):
—(CF2CF2O)b(CF(CF3)CF2O)c(CF2O)d(CF2CF2CF2O)e—  (2) in the formula (2), the symbols are as follows: b, c, d and e: each independently an integer of at least 0, and b+c+d+e is from 5 to 150; and in the formula (2), the binding order of repeating units of (CF2CF2O), (CF(CF3)CF2O), (CF2O) and (CF2CF2CF2O) is not limited, and they may be bonded randomly or in a block; B: a group represented by the following formula (5-1), a group represented by the following formula (5-2), a group represented by the following formula (5-3) or a group represented by the following formula (5-4):
—(CF2)aCFXCH2OCH2CH2CH2SiLmRn  (5-1)—(CF2)aCFXCH2OCH2CH(SiLa,Rn)CH3  (5-2)—(CF2)aCFXCH2OCH2CH═CH2  (5-3)—(CF2)aCFXCH2OCH═CHCH3  (5-4) in the formulae (5-1) to (5-4), the symbols are as follows: a: 0 or 1; X: F or CF3; L: a hydrolysable group; R: a hydrogen atom or a monovalent hydrocarbon group; and m and n: m is an integer of from 1 to 3, n is an integer of from 0 to 2, and m+n=3.