Water-and oil-repellent

摘要

A water- and oil-repellent includes, as an active ingredient, a fluorine-containing copolymer including as a copolymer unit (A) at least one of perfluoroalkylalkyl acrylates and corresponding methacrylates, (B) benzyl acrylate or benzyl methacrylate represented by the general formula: CnF2n+1CmH2mOCOCR═CH2 (wherein R represents a hydrogen atom or a methyl group; n represents 4, 5, or 6; and m represents 1, 2, 3, or 4), (C) a fluorine-free polymerizable monomer other than benzyl acrylate and benzyl methacrylate, and (D) a cross-linkable group-containing polymerizable monomer.

主权项

1. A water- and oil-repellent comprising an aqueous emulsion dispersed fluorine-containing copolymer having as a copolymerization composition:
(A) 61.6 to 80 wt. % of perfluoroalkylalkyl methacrylates represented by the general formula:
C6F13CmH2mOCOCCH3═CH2 wherein m represents 1, 2, 3, or 4,
(B) 5 to 32.9 wt. % of at least one of benzyl acrylate and benzyl methacrylate, (C) 5 to 32.9 wt. % of (i) vinylidene chloride together with at least one of (ii) polyethylene glycol monoacrylate and polyethylene glycol monomethacrylate, and (D) 0.5 to 28.4 wt. % of a cross-linkable group-containing polymerizable monomer, into water in the presence of a surfactant consisting of a polyoxyethylene polycyclic phenyl ether.