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: C n F 2n+1 C m H 2m OCOCR=CH 2 (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.
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机译：拒水拒油剂包括含氟共聚物作为活性成分，该含氟共聚物包含丙烯酸全氟烷基烷基酯和相应的甲基丙烯酸酯中的至少一种作为共聚物单元（A），（B）由通式表示的丙烯酸苄酯或甲基丙烯酸苄酯：C n F 2n + 1 C m H 2m OCOCR = CH 2（其中R代表氢原子或甲基; n代表4、5或6; m代表1、2、3或4）， C）丙烯酸苄酯和甲基丙烯酸苄酯以外的无氟的聚合性单体，以及（D）含交联性基团的聚合性单体。
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