| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluorine-containing resin achieving excellent ink repellency and sustentation thereof, ink droppability and sustentation thereof, and developability. <P>SOLUTION: This fluorine-containing resin contains an Rf group (a) comprising a polyfluoroether structure represented by formula: -(X-O)<SB POS="POST">n</SB>-Y and an acidic group (b), has an acid value of 1-300 mgKOH/g, has the content of fluorine atom of 5-40%, and has solubility in an aqueous alkali solution, (in the formula, X is a 1-10C bivalent saturated hydrocarbon group or 1-10C fluorinated bivalent saturated hydrocarbon group, and represents the same or different group in every unit tied up by n; Y represents a hydrogen atom (limited to the case that no fluorine atom is bonded to a carbon atom adjacent to an oxygen atom adjacent to Y), 1-20C monovalent saturated hydrocarbon group or 1-20C fluorinated saturated hydrocarbon group; and n denotes an integer of 2-50, provided that the total number of fluorine atoms in the formula is 2 or more). <P>COPYRIGHT: (C)2013,JPO&INPIT |
