Abstract: A soft water- and oil-repellent comprising, as an active ingredient, a copolymer of a perfluoropolyether alcohol (meth)acrylic acid derivative represented by the general formula: CH2?CR1COOCH2CF(CF3)[OCF2CF(CF3)]nOC3F7??[I] (wherein R1 is a hydrogen atom or a methyl group, and n is an integer of 1 to 20), and a (meth)acrylic acid ester represented by the general formula: CH2?CR1COOR2??[II] (wherein R1 is a hydrogen atom or a methyl group, and R2 is an alkyl group, an alkoxyalkyl group, a cycloalkyl group, an aryl group, or an aralkyl group) and having a glass transition temperature Tg of 51 to 120° C. The soft water- and oil-repellent gives a coating film formed from a coating agent which closely follows the deformation of rubber or resin, and exhibits water- and oil-repellency.

Abstract: A perfluoropolyether phosphate ester represented by the general formula: [C3F7O{CF(CF3)CF2O}nCF(CF3)CH2O]2PO(OH) (wherein n is an integer of 1 to 20). This compound is obtained by reacting a perfluoropolyether alcohol represented by the general formula: C3F7O{CF(CF3)CF2O}nCF(CF3)CH2OH (wherein n is an integer of 1 to 20) with phosphorus oxychloride, and hydrolyzing the obtained compound represented by the general formula: [C3F7O{CF(CF3)CF2O}nCF(CF3)CH2O]2POCl (wherein n is an integer of 1 to 20). Moreover, the perfluoropolyether phosphate ester or a salt thereof forms a surface treatment agent comprising the perfluoropolyether phosphate ester or a salt thereof as an active ingredient.

Abstract: A polyfluoroalkyl phosphoric acid ester represented by the general formula [CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cO]mP(O)(OH)3?m [I] n: 1 to 6, a: 1 to 4, b: 1 to 3, c: 1 to 3, m: 1 to 3) or a salt thereof. The polyfluoroalkyl phosphoric acid ester represented by the general formula [I] is produced by subjecting a polyfluoroalkyl alcohol represented by the general formula CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOH [II] (n: 1 to 6, a: 1 to 4, b: 1 to 3, c: 1 to 3) to a dehydration condensation reaction with phosphoric acid. The polyfluoroalkyl phosphoric acid ester can be easily synthesized without passing through dialkyl ester as in the case of phosphonic acid, and used for a mold-releasing agent comprising the same or a salt thereof as an active ingredient.

Abstract: A polyfluoroalkyl phosphoric acid ester represented by the general formula [CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cO]mP(O)(OH)3?m [I] n: 1 to 6, a: 1 to 4, b: 1 to 3, c: 1 to 3, m: 1 to 3) or a salt thereof. The polyfluoroalkyl phosphoric acid ester represented by the general formula [I] is produced by subjecting a polyfluoroalkyl alcohol represented by the general formula CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)2OH [II] (n: 1 to 6, a: 1 to 4, b: 1 to 3, c: 1 to 3) to a dehydration condensation reaction with phosphoric acid. The polyfluoroalkyl phosphoric acid ester can be easily synthesized without passing through dialkyl ester as in the case of phosphonic acid, and used for a mold-releasing agent comprising the same or a salt thereof as an active ingredient.

Abstract: A fluorine-containing copolymer that is a copolymer of: a polyfluoroalkyl alcohol (meth)acrylate represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2??[I] (R: a hydrogen atom, a methyl group, n: 1 to 6, a: 1 to 4, b: 1 to 3, and c: 1 to 3); benzyl (meth)acrylate or styrene; and a Si group-containing crosslinkable (meth)acrylate represented by the general formula: CH2?CRCOO(CH2)dSi(OR1)eR23?e??[II] (R: a hydrogen atom, a methyl group, R1, R2: an alkyl group having 1 to 10 carbon atoms, d: 1 to 3, e: 1 to 3). The surface-modifying agent comprising this fluorine-containing copolymer as an active ingredient have an excellent dynamic slip angle after washing with hexadecane, and anti-corrosive properties.

Abstract: An aqueous dispersion of a fluorine-containing copolymer comprising, as copolymerization units, (A) a (meth)acrylate represented by [CH2?CHRCOO(NH)rR1NR2R3R4]+Y?, (B) a perfluoroalkylalkyl(meth)acrylate represented by CmF2m+1CpH2p(NR?SO2)qOCOCR?CH2 or a polyfluoroalkylalkyl(meth)acrylate thereof, or a polyfluoroalkyl(meth)acrylate represented by CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2, (C) benzyl(meth)acrylate, (D) a fluorine-free polymerizable monomer other than components (A) and (C), and (E) a crosslinkable group-containing polymerizable monomer. The aqueous dispersion can improve the dispersion stability of an aqueous dispersion of a water- and oil-repellent when used as a water- and oil-repellent comprising the fluorine-containing copolymer as an active component.

Abstract: Disclosed is an emulsion formed using, as an emulsifier, 0.01 to 30 parts by weight of a perfluoroalkylethyl phosphonic acid salt represented by the general formula: CnF2n+1CH2CH2P(O)(OM1)(OM2) [III] (M1: a hydrogen atom, ammonium salt, or organic amine salt, M2: an ammonium salt or organic amine salt, n: 1 to 6), based on 100 parts by weight of a perfluoropolyether oil represented by the general formula: RfO(C3F6O)p(C2F4O), (CF2O), Rf? [I] (Rf and Rf?: C1-C5 perfluoroalkyl groups, p+q+r: 2 to 200) or the general formula: F(CF2CF2CF2O)nCF2CF3 [II](n: 2 to 100), or a perfluorocarbon compound. In spite of using, as an emulsifier, a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, the emulsion exhibits excellent emulsification stability, and therefore can be effectively used as a surface-treating agent, such as a mold-releasing agent.

Abstract: A fluorine-containing copolymer that is a copolymer of: a polyfluoroalkyl alcohol (meth)acrylate represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2??[I] (R: a hydrogen atom, a methyl group, n: 1 to 6, a: 1 to 4, b: 1 to 3, and c: 1 to 3); benzyl (meth)acrylate or styrene; and a Si group-containing crosslinkable (meth)acrylate represented by the general formula: CH2?CRCOO(CH2)dSi(OR1)eR23-e??[II] (R: a hydrogen atom, a methyl group, R1, R2: an alkyl group having 1 to 10 carbon atoms, d: 1 to 3, e: 1 to 3). The surface-modifying agent comprising this fluorine-containing copolymer as an active ingredient have an excellent dynamic slip angle after washing with hexadecane, and anti-corrosive properties.

Abstract: Disclosed is an emulsion formed using, as an emulsifier, 0.01 to 30 parts by weight of a perfluoroalkylethyl phosphonic acid salt represented by the general formula: CnF2n+1CH2CH2P(O)(OM1)(OM2) [III] (M1: a hydrogen atom, ammonium salt, or organic amine salt, M2: an ammonium salt or organic amine salt, n: 1 to 6), based on 100 parts by weight of a perfluoropolyether oil represented by the general formula: RfO(C3F6O)p(C2F4O)q(CF2O)rRf? [I] (Rf and Rf?: C1-C5 perfluoroalkyl groups, p+q+r: 2 to 200) or the general formula: F(CF2CF2CF2O)nCF2CF3 [II] (n: 2 to 100), or a perfluorocarbon compound. In spite of using, as an emulsifier, a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, the emulsion exhibits excellent emulsification stability, and therefore can be effectively used as a surface-treating agent, such as a mold-releasing agent.

Abstract: A fluorine-containing copolymer comprising a copolymer of (A) CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 (R:H, a methyl group, n:1-6, a:1-4, b:1-3, c:1-3), (B) CH2?CRCOOR1(R:H, a methyl group, R1:C1-C30 alkyl group, or an aralkyl group; and (C) CH2?CRCOOR2NCO or CH2?CRCOOR2NHCOR3 (R:H, a methyl group, R2:C1-C30 alkylene group, R3 :blocked group of an isocyanate group, and a surface-modifying agent containing the fluorine-containing copolymer as an active ingredient. The surface-modifying agent has excellent adhesion to substrates and improved processing durability.

Abstract: An aqueous dispersion of a fluorine-containing copolymer comprising, as copolymerization units, (A) a (meth)acrylate represented by [CH2?CHRCOO(NH)rR1NR2R3R4]+Y?, (B) a perfluoroalkylalkyl(meth)acrylate represented by CmF2m+1CpH2p(NR?SO2)qOCOCR?CH2 or a polyfluoroalkylalkyl(meth)acrylate thereof, or a polyfluoroalkyl(meth)acrylate represented by CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2, (C) benzyl(meth)acrylate, (D) a fluorine-free polymerizable monomer other than components (A) and (C), and (E) a crosslinkable group-containing polymerizable monomer. The aqueous dispersion can improve the dispersion stability of an aqueous dispersion of a water- and oil-repellent when used as a water- and oil-repellent comprising the fluorine-containing copolymer as an active component.

Abstract: Disclosed is an emulsion formed using, as an emulsifier, 0.01 to 30 parts by weight of a perfluoroalkylethyl phosphonic acid salt represented by the general formula: CnF2n+1CH2CH2P(O)(OM1)(OM2) [III] (M1: a hydrogen atom, ammonium salt, or organic amine salt, M2: an ammonium salt or organic amine salt, n: 1 to 6), based on 100 parts by weight of a perfluoropolyether oil represented by the general formula: RfO(C3F6O)p(C2F4O), (CF2O), Rf? [I] (Rf and Rf?: C1-C5 perfluoroalkyl groups, p+q+r: 2 to 200) or the general formula: F(CF2CF2CF2O)nCF2CF3 [II](n: 2 to 100), or a perfluorocarbon compound. In spite of using, as an emulsifier, a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, the emulsion exhibits excellent emulsification stability, and therefore can be effectively used as a surface-treating agent, such as a mold-releasing agent.

Abstract: Disclosed is a method for producing an aqueous emulsion containing a fluorine-containing copolymer comprising, as copolymerizable monomers, (A) at least one of a perfluoroalkylalkyl acrylate and a corresponding methacrylate represented by the general formula: CnF2n+1CmH2mOCOCR?CH2, wherein R is hydrogen or methyl group, n is 4, 5, or 6, and m is 1, 2, 3, or 4; (B) benzyl acrylate or benzyl methacrylate; (C) a fluorine-free polymerizable monomer other than benzyl acrylate and benzyl methacrylate; and (D) a crosslinkable group-containing polymerizable monomer; the copolymer being produced by previously subjecting 10 to 80 wt. % of the total weight of component (A) and 0 to 60 wt.

Abstract: Disclosed is a fluorine-containing polymer aqueous dispersion in which a fluorine-containing polymer is dispersed using, as an emulsifier, a polyfluoroalkylphosphonic acid salt represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OM1)(OM2)??[I], wherein M1 is a hydrogen atom, an alkali metal, an ammonium base, or an organic amine base, M2 is an alkali metal, an ammonium base, or an organic amine base, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3. This fluorine-containing polymer aqueous dispersion uses a polyfluoroalkylphosphonic acid salt with a low bioaccumulation potential as an emulsifier, and has excellent mechanical stability.

Abstract: Disclosed is a fluorine-containing copolymer comprising a copolymer of a polyfluoroalkyl alcohol(meth)acrylic acid derivative represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 ??[I] (R: a hydrogen atom or a methyl group, n: an integer of 1 to 6, a: an integer of 1 to 4, b: an integer of 1 to 3, c: an integer of 1 to 3) and a polysiloxane containing a terminal (meth)acryloyloxy group represented by the general formula: (R1: a hydrogen atom or a methyl group, R2: a C1-C6 linear or branched divalent alkylene group, R3: a C1-C30 linear or branched alkyl group, R4 and R5: a hydrogen atom, a methyl group, or a phenyl group, m: an integer of 1 to 200).

Abstract: Disclosed is a copolymer of a polyfluoroalkyl alcohol (meth)acrylic acid derivative represented by the formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 (R: H or CH3, n: 1 to 6, a: 1 to 4, b: 1 to 3, and c: 1 to 3), and a (meth)acrylic acid polyoxyalkylene ester represented by the formula: R1(OR2)p(OR3)qOCOCR?CH2 (R: H or CH3; R1: H, an alkyl group, or an aromatic group; R2 and R3: alkylene groups having 1 to 6 carbon atoms; p: 2 to 50, q: 0 or 1 to 50), and also disclosed is a water- and oil-repellent comprising this fluorine-containing copolymer as an active ingredient. The water- and oil-repellent comprising this fluorine-containing copolymer as an active ingredient can be used as a stain-proof-type water- and oil-repellent that can apply effective stain-proof finish and stain removal finish to fiber fabrics, and that has excellent washing durability.

Abstract: Disclosed is a fluorine-containing copolymer comprising a copolymer of a polyfluoroalkyl alcohol (meth)acrylic acid derivative represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 wherein R is a hydrogen atom or a methyl group, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3, and styrene or a derivative thereof; and also disclosed is a surface modifier comprising the fluorine-containing copolymer as an active ingredient. When the fluorine-containing copolymer is used as an active ingredient of a surface modifier, the heat resistance of the surface modifier can be further improved.

Abstract: Disclosed is a fluorine-containing copolymer comprising a copolymer of a polyfluoroalkyl alcohol(meth)acrylic acid derivative represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 ??[I] (R: a hydrogen atom or a methyl group, n: an integer of 1 to 6, a: an integer of 1 to 4, b: an integer of 1 to 3, c: an integer of 1 to 3) and a polysiloxane containing a terminal (meth)acryloyloxy group represented by the general formula: (R1: a hydrogen atom or a methyl group, R2: a C1-C6 linear or branched divalent alkylene group, R3: a C1-C30 linear or branched alkyl group, R4 and R5: a hydrogen atom, a methyl group, or a phenyl group, m: an integer of 1 to 200).

Abstract: Disclosed is a mold-releasing agent comprising, as active ingredients, a graft copolymer (A) in which a polyalkylene glycol or an alkyl ether thereof is graft-copolymerized with a polyfluoro-1-alkene represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)bCH?CH2 (wherein n is an integer of 1 to 6, a is an integer of 1 to 4, and b is an integer of 1 to 3), and a polyfluoroalkylphosphonic acid represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OH)2 (wherein n is an integer of 1 to 6, a is an integer of 1 to 4, and b is an integer of 1 to 3, and c is an integer of 1 to 3) or a salt thereof (B). The mold-releasing agent comprises, as an active ingredient, a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, and having mold release performance equivalent to or more than that of a mold-releasing agent comprising a compound having a perfluoroalkyl group containing 8 or more carbon atoms as an active ingredient.

Abstract: Disclosed is a fluorine-containing polymer aqueous dispersion in which a fluorine-containing polymer is dispersed using, as an emulsifier, a polyfluoroalkylphosphonic acid salt represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OM1)(OM2)??[I], wherein M1 is a hydrogen atom, an alkali metal, an ammonium base, or an organic amine base, M2 is an alkali metal, an ammonium base, or an organic amine base, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3. This fluorine-containing polymer aqueous dispersion uses a polyfluoroalkylphosphonic acid salt with a low bioaccumulation potential as an emulsifier, and has excellent mechanical stability.