Water-and oil-repellent
AssigneeUnimatec Co., Ltd.
InventorsJi-Shan JIN, Satoshi KURIHARA, Sumiko MOURI, Katsuyuki SATO
Life of this patent
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Abstract
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.
Claims6
A water- and oil-repellant comprising an aqueous emulsion dispersed fluorine-containing copolymer having as a copolymerization composition:
- (A) 61.6 to 80 wt. % of least one of perfluoroalkylalkyl acrylates and corresponding methacrylates 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),
- (B) 5 to 80 wt. % of at least one of benzyl acrylate and benzyl methacrylate,
- (C) 5 to 80 wt. % of (i) vinylidene chloride and at least one of (ii) polyethylene glycol monoacrylate and polyethylene glycol monomethacrylate, and
- (D) 0.5 to 40 wt. % of a cross-linkable group-containing polyerizable monomer,
- Into water in the presence of a polyethylene oxide adduct type nonionic surfactant.
(canceled)
6-10. (canceled)
Dependencies are inferred from the claim text.