Patent ID: 8957151
Filing Date: 2015-02-17
Classification: G03F

Abstract:
1. A liquid-repellent film, comprising: any one of silane compounds having a perfluoropolyether group represented by the following formulae (1), (2), and (3); and a fluorine-containing acrylic homopolymer which is a homopolymerized product of a monomer represented by the following formula (4): in the formula (1), Rf I represents a perfluoropolyether group, R I represents a hydrolyzable substituent, X I represents an organic group having 1 or more and 12 or less carbon atoms, Y I represents a non-hydrolyzable substituent, and a represents an integer of 1 or more and 3 or less; in the formula (2), Rf II represents a perfluoropolyether group, R II and R III each independently represent a hydrolyzable substituent, X II and X III each independently represent an organic group having 1 or more and 12 or less carbon atoms, Y II and Y III each independently represent a non-hydrolyzable substituent, and b and c each independently represent an integer of 1 or more and 3 or less; in the formula (3), Rf III represents a perfluoropolyether group, R IV represents a hydrolyzable substituent, X IV represents a linear saturated hydrocarbon group having 1 or more and 12 or less carbon atoms, Y IV represents a non-hydrolyzable substituent, Z represents a hydrogen atom or an alkyl group, d represents an integer of 1 or more and 3 or less, and m represents a positive integer, provided that —SiR IV d Y IV 3-d is bonded to a terminal carbon atom on a Z side in X IV ; and in the formula (4), A I represents H or CH 3 , A II represents a linear saturated hydrocarbon group having 1 or more and 3 or less carbon atoms, and Rf IV represents a linear or branched perfluoroalkyl group.