Patent ID: 8247078

Claim:
A fluorine-containing acrylate or alpha-substituted, fluorine-containing acrylate, represented by the following formula (1), wherein a is an integer of from 1 to 3, b is an integer of from 1 to 3, and c is an integer of from 1 to 3, provided that a+b+c is 3, 4, or 5; e is an integer of from 2 to 8; R 1 is a group represented by the following formula (2), (C 4 H 8 O) f (C 3 H 6 O) g (C 2 H 4 O) h (CH 2 O) i R 3 (2) wherein f, g, h, and i are, independently of each other, an integer of from 0 to 100, provided that a molecular weight of R 1 is in a range of 30 to 3000, these repeating units may be sequenced at random, and R 3 is a saturated or unsaturated hydrocarbon group having 1 to 10 carbon atoms; R 2 is, independently of each other, a hydrogen atom, a fluorine atom, a methyl group, or a trifluoromethyl group; Rf is a perfluoropolyether residue represented by the following formula (3) wherein j, k, l, and m are, independently of each other, an integer of from 0 to 50, provided that a molecular weight of Rf is in a range of 200 to 6000, X is a fluorine atom or a trifluoromethyl group, and these repeating units may be sequenced at random; Z is a divalent organic group; and d is 0 or 1.