JPH09302335A - Highly stable water-dispersed water and oil repellent composition - Google Patents

Abstract

(57) [Summary] (Corrected) [PROBLEMS] To obtain a water / oil repellent composition exhibiting excellent dispersion stability even when a concomitant drug or a contaminant is present in a processing bath. An aqueous medium, a polymer (a) containing a unit obtained by polymerizing an acrylate and / or a methacrylate containing a polyfluoroalkyl group and dispersed in an aqueous medium, and represented by the following formula 1. A water dispersion type water and oil repellent composition comprising a quaternary ammonium salt (b). ^{[(R 1) (R 2} ) (R 3) (R 4) N] + X - ···
Formula 1 R ^{1 to} R ⁴ and X ⁻ in Formula 1 have the following meanings. R ^{1 to} R ⁴ : may be the same or different,
One group selected from the group consisting of a hydrogen atom, an alkyl group, an alkenyl group, an acyl group, a phenyl group, and a phenyl group to which an alkyl group or an alkenyl group is bonded. X ⁻ : a monovalent anion.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a water-dispersed water / oil repellent composition having excellent stability in a processing bath and a method for producing the same. More specifically, it has excellent dispersion stability and water repellency even when the processing bath contains a concomitant drug, or when the processing bath contains contaminants adhering to the processing cloth etc. from the pretreatment step. The present invention relates to a water dispersion type water and oil repellent composition exhibiting oil repellency.

[0002]

2. Description of the Related Art A polymer containing polymerized units of a polyfluoroalkyl group-containing polymerizable compound such as a polyfluoroalkyl group-containing acrylate and / or methacrylate is synthesized by emulsion polymerization, and the resulting aqueous dispersion is repelled. It is widely used as a water- and oil-repellent agent (Japanese Patent Publication No. 47-40467). In addition, JP-A-55-71
779, a polymer containing polymerized units of a polyfluoroalkyl group-containing polymerizable compound such as a polyfluoroalkyl group-containing acrylate and / or methacrylate, and a third group having two methyl groups bonded to a nitrogen atom.
A water-dispersed water and oil repellent in which an amine or a quaternary ammonium salt having three methyl groups bonded to nitrogen atoms and a nonionic emulsifier are mixed in a specific amount is described.

[0003]

However, in conventional aqueous dispersions, the presence of an acid or an anionic substance (such as a dye fixing agent or an acid dye) in the processing bath reduces the water / oil repellency,
Problems such as emulsion particles coagulating and settling due to deterioration of the dispersibility of the aqueous dispersion, resulting in a decrease in water and oil repellency, and polymer adhesion to the mangle (gum up), resulting in uneven processing on the work cloth Was there. Especially when a quaternary ammonium salt having two or more methyl groups bonded to a nitrogen atom is contained, when an acid dye is present in the processing bath,
The dispersion stability was not always sufficient, and the water / oil repellency was also insufficient.

[0004]

The inventors of the present invention have conducted extensive studies to solve the above-mentioned problems, and as a result, include a specific quaternary ammonium salt (b) in a water-dispersed water- and oil-repellent agent. As a result, it has been found that even if a concomitant drug such as an acid or an anionic substance or a contaminant is present, it exhibits extremely excellent dispersion stability and does not cause deterioration in water / oil repellency.

That is, the present invention provides an aqueous medium, a polymer (a) containing a unit obtained by polymerizing an acrylate and / or a methacrylate containing a polyfluoroalkyl group, which is dispersed in an aqueous medium, and A water-dispersed water / oil repellent composition comprising the quaternary ammonium salt (b) represented by 1.

[0006]

## STR2 ## ^{[(R 1) (R 2} ) (R 3) (R 4) N] + X - ··· Formula 1

R ^{1 to} R ⁴ and X ⁻ in the formula 1 have the following meanings. R ^{1 to} R ⁴ , which may be the same or different, are each a hydrogen atom, an alkyl group, an alkenyl group, an acyl group, a phenyl group, and a phenyl group to which an alkyl group or an alkenyl group is bonded. One group selected. However, at least two groups selected from R ^{1 to} R ⁴ are alkyl groups having 4 to 18 carbon atoms or 4 carbon atoms.
~ 18 alkenyl groups. X ⁻ : a monovalent anion.

The specific polymer (a) dispersed in the aqueous medium of the present invention is a polymer containing polymerized units of acrylate and / or methacrylate containing a polyfluoroalkyl group. In the following, the polyfluoroalkyl group will be referred to as R ^f group. Acrylate and / or methacrylate are referred to as (meth) acrylate, and the same applies to other compounds. Further, an acrylate and / or a methacrylate containing a polyfluoroalkyl group will be referred to as a (meth) acrylate containing an R ^f group.

The R ^f group of the (meth) acrylate containing the R ^f group means a group in which two or more hydrogen atoms of an alkyl group are substituted with fluorine atoms. The R ^f group may contain a halogen atom other than a fluorine atom, and a chlorine atom is preferable as the other halogen atom. Furthermore, the R ^f group may have an etheric oxygen atom or a thioetheric sulfur atom inserted between the carbon atom-carbon bonds.

The carbon number of the R ^f group is preferably 3 to 20, and particularly preferably 4 to 16. Further, the R ^f group preferably has a straight chain or branched structure, and a straight chain is preferable. In the case of a branched structure, it is preferable that the branched portion is present at the terminal portion of the R ^f group and has about 1 to 3 carbon atoms.

[0011] The number of fluorine atoms in the R ^f groups, when expressed as a percentage of the number of hydrogen atoms of the corresponding alkyl group ^the R ^f group and the same number of carbon atoms is preferably 60% or more, 80%
The above is more preferred. Further, the R ^f group is preferably a group in which all the hydrogen atoms of the alkyl group are substituted with fluorine atoms (hereinafter referred to as a perfluoroalkyl group).

The (meth) acrylate containing an R ^f group is preferably a compound represented by the following formula 2. However, R ^f1
Represents a linear or branched polyfluoroalkyl group having 4 to 16 carbon atoms, preferably a perfluoroalkyl group. Further, in Formula 2, it is preferable that a fluorine atom is bonded to the carbon atom of the R ^f1 group bonded to R ⁵ . R
⁵ represents a linear or branched divalent linking group having 1 to 10 carbon atoms, and those described in specific examples are preferable. R
⁶ represents a hydrogen atom or a methyl group.

[0013]

Embedded image R ^f1 —R ⁵ —OCOCR ⁶ ═CH ₂ ... Formula 2

Specific examples of the (meth) acrylate containing an R ^f group are shown below, but the invention is not limited thereto.

[0015]

Embedded image CF ₃ (CF ₂ ) ₇ (CH ₂ ) ₂ OCOCH = CH ₂ , CF ₃ (CF ₂ ) ₇ (CH ₂ ) ₃ O
COCH = CH ₂ , CF ₃ (CF ₂ ) ₆ CH ₂ OCOCH = CH ₂ , CF ₃ (CF ₂ ) ₄ CH ₂ OCOC
(CH ₃ ) = CH ₂ , (CF ₃ ) ₂ CF (CF ₂ ) ₆ (CH ₂ ) ₂ OCOCH = CH ₂ , (CF ₃ ) ₂
CF (CF ₂ ) ₁₀ (CH ₂ ) ₃ OCOCH = CH ₂ , CF ₃ (CF ₂ ) ₆ (CH ₂ ) ₂ OCOC (CH ₃ )
= CH ₂ .

[0016]

[Chemical formula 5] (CF ₃ ) ₂ CF (CF ₂ ) ₄ (CH ₂ ) ₂ OCOCH = CH ₂ , CF ₃ (CF ₂ ) ₇ S
O ₂ N (C ₃ H ₇ ) (CH ₂ ) ₂ OCOCH = CH ₂ , CF ₃ (CF ₂ ) ₇ SO ₂ N (CH ₃ ) (CH ₂ ) ₂
OCOC (CH ₃ ) = CH ₂ , CF ₃ (CF ₂ ) ₇ (CH ₂ ) ₃ OCOCH = CH ₂ , (CF ₃ ) ₂ CF
(CF ₂ ) ₄ CH ₂ CH (OH) CH ₂ OCOCH = CH ₂ , (CF ₃ ) ₂ CF (CF ₂ ) ₆ CH ₂ CH
(OCOCH ₃ ) OCOC (CH ₃ ) = CH ₂ .

The polymer (a) in the present invention has the above R
^It contains one or more polymerized units of (meth) acrylate containing an ^f group. R if more than one
^It is preferable that the (meth) acrylate in which the carbon number of the ^f group is different.

The polymer preferably contains polymerized units of (meth) acrylate containing R ^f groups as well as polymerized units of other polymerizable compounds. The other polymerizable compound is not particularly limited as long as it is a compound copolymerizable with the (meth) acrylate containing an R ^f group. Preferred examples of other polymerizable compounds include the following compounds.

N-methylol (meth) acrylamide,
(Meth) acrylamide, glycidyl (meth) acrylate, aziridinyl (meth) acrylate, diacetone (meth) acrylamide, methylolated diacetone (meth) acrylamide, ethylene glycol di (meth) acrylate, hydroxyalkyl (meth) acrylate, 3-fluoro- 2-Hydroxypropyl (meth) acrylate, 3-chloro-2-hydroxypropyl (meth) acrylate, a reaction product of isophorone diisocyanate in which one of the isocyanate groups is blocked with methyl ethyl ketone oxime and hydroxyethyl (meth) acrylate , A cross-linking agent such as a reaction product of tolylene diisocyanate in which one of the isocyanate groups is blocked with methyl ethyl ketone oxime and hydroxyethyl (meth) acrylate A polymerizable monomer having a.

Vinyl chloride, ethylene, vinyl acetate, vinyl fluoride, styrene, α-methylstyrene, alkyl (meth) acrylate, benzyl (meth) acrylate, vinyl alkyl ether, halogenated alkyl vinyl ether, vinyl alkyl ketone, cyclohexyl (meth ) Acrylate, maleic anhydride, butadiene,
Isoprene, chloroprene, etc.

When the polymer contains a polymerized unit of another polymerizable compound, one or two of the polymerized units are included.
More than one seed can be included.

The polymer (a) in the present invention is preferably a copolymer containing a polymerized unit of a (meth) acrylate containing an R ^f group and a polymerized unit of another polymerizable compound, and a copolymer When combined, the polymerized unit of (meth) acrylate containing R ^f groups is 40% by weight.
The above is preferable, and about 50 to 80% by weight is particularly preferable. Further, when a crosslinkable monomer is contained as another polymerizable compound, the amount thereof may be small, and usually, it is 0.
It is preferably about 01 to 10% by weight, particularly preferably about 0.1 to 5% by weight.

The water-dispersed water / oil repellent composition of the present invention comprises
The feature is that a specific quaternary ammonium salt (b) is included. By including the specific quaternary ammonium salt (b), it is possible to prevent a decrease in dispersion stability when a contaminant, particularly an acid dye is mixed. The quaternary ammonium salt (b) is characterized by having two or more alkyl groups or alkenyl groups having 4 or more carbon atoms bonded to a nitrogen atom, and is represented by the above formula 1. In Formula 1, [(R ¹ ) (R ² ) (R ³ ) (R ⁴ ) N] ⁺ represents a cation, and X ⁻ represents an anion.

R ^{1 to} R ⁴ in the formula 1 are each a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an alkenyl group having 2 to 22 carbon atoms, an acyl group having 2 to 22 carbon atoms, a phenyl group, or 1 to 1 carbon atoms. Phenyl group having 22 alkyl groups, 2 carbon atoms
A phenyl group to which an alkenyl group of -22 is bonded is preferable.

R ¹ is preferably a butyl group, a phenyl group, a benzyl group, an alkyl group having 8 to 22 carbon atoms, or an alkenyl group having 8 to 22 carbon atoms. R ^{2 to} R ⁴ are preferably hydrogen, methyl group, ethyl group, propyl group, butyl group, phenyl group, benzyl group, alkyl group having 8 to 22 carbon atoms, or alkenyl group having 8 to 22 carbon atoms.

Further, at least two groups selected from R ^{1 to} R ⁴ are an alkyl group having 4 to 18 carbon atoms or an alkenyl group having 4 to 18 carbon atoms, and the groups are linear or branched. The structure is preferable, and examples thereof include a butyl group, a stearyl group, an octyl group, a lauryl group, and an oleyl group. R
^{1 to} R ⁴ may be the same or different, and if different, it is preferably a tallow alkyl group which is a mixture of two or more kinds containing an oleyl group and a stearyl group.
Further, the quaternary ammonium salt (b) in the present invention is 1
One kind or two or more kinds can be used.

X ⁻ is a chlorine anion, HSO ₄ ⁻ , N
_{^{O 3 -, CH 3 COO -}} , CH 3 CH 2 COO -, HCO
O ⁻ or C ₂ H ₅ SO ₄ ⁻ is preferable.

Specific examples of the specific quaternary ammonium salt (b) in the present invention include, but are not limited to, the following compounds.

[0029]

(C ₆ H ₅ CH ₂ ) (C ₄ H ₉ ) ₃ N ⁺ Cl
^{_{-, (C 4 H 9)}} 4 N + Cl -, (C 8 H 17) 3 (CH
₃ ) N ⁺ Cl ⁻ , (C ₈ H ₁₇ ) ₂ (CH ₃ ) ₂ N ⁺ Cl
^- .

The specific polymer (a) and the quaternary ammonium salt (b) contained in the water-dispersed water / oil repellent composition of the present invention.
The amount of the quaternary ammonium salt (b) is 0.1 to 20 relative to the total amount of the polymer (a) and the quaternary ammonium salt (b).
%, Preferably 0.1 to 10% by weight.

The water-dispersed water and oil repellent composition of the present invention comprises
Other surfactants may be present in addition to the above quaternary ammonium salt (b). As the other surfactant, a nonionic surfactant is preferable.

Examples of nonionic surfactants include polyethylene glycol esters, polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene fatty acid esters. , Polyoxyethylene / glycerin esters, sorbitan esters, polyoxyethylene alkylamines, polyoxyethylene polyoxypropylene / alkylamines and the like. Of these, polyoxyethylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, and polyoxyethylene alkylamines are particularly preferable because of their high stability.

The nonionic surfactant has a certain effect of dispersing the polymer (a) in an aqueous medium, so that it is preferably contained in the water and oil repellent composition. The amount of the nonionic surfactant is preferably 0 to 10 parts by weight, more preferably 0.1 to 8 parts by weight, based on the polymer (a). Further, in the present invention, the conventional nonionic surfactant alone is insufficient in stability in the processing bath when contaminants coexist, and polymer adhesion to the mangle (gum-up)
However, the inclusion of the quaternary ammonium salt (b) can improve the stability against impurities.

Further, the water-dispersed water / oil repellent composition of the present invention further comprises a cationic surfactant, an amphoteric surfactant,
It is also possible to include a surfactant such as a polymer surfactant, for example, polyoxyethylene alkylamine quaternary ammonium salt, betaine acetate, imidazolinium betaine, amine oxide, polyoxyethylene alkyl ether acetic acid. Preferred examples include salts, polyoxyethylene alkyl ether sulfates, polyvinyl alcohol and the like.

Examples of the aqueous medium of the present invention include water alone or water containing a water-soluble organic solvent.
Examples of the water-soluble organic solvent include ketones, esters, glycols, glycol ethers and alcohols. As the aqueous medium, only water is used, or when a water-soluble organic solvent is used, it is preferable to add about 5 to 50 parts by weight to 100 parts by weight of water.

In the water-dispersed water / oil repellent composition of the present invention, the polymer (a) containing a polymerized unit of (meth) acrylate containing an R ^f group is dispersed in an aqueous medium. The method of dispersing the polymer (a) in the aqueous medium is not particularly limited, but in the present invention, a method of synthesizing the polymer (a) by an emulsion polymerization method is adopted, and the method is naturally carried out by stirring during the polymerization. And a method of dispersing by emulsifying with a homomixer or a high-pressure emulsifying device before adding a polymerization initiator for emulsion polymerization and then initiating the polymerization.

That is, the polymer (a) of the present invention has R ^f
By emulsion-polymerizing a polymerizable monomer containing a group-containing (meth) acrylate and, if necessary, the above-mentioned other polymerizable monomer in an aqueous medium in the presence of a surfactant. It is preferably synthesized. As the surfactant at the time of emulsion polymerization, the above quaternary ammonium salt (b) or a nonionic surfactant is preferable.

As the medium for emulsion polymerization, it is preferable to use the same aqueous medium as the aqueous medium of the water / oil repellent composition of the present invention, and it is preferable to use only water or water containing a water-soluble organic solvent. Can be mentioned. Examples of the water-soluble organic solvent include ketones, esters, glycols, glycol ethers and alcohols.

Emulsion polymerization is usually carried out by allowing a polymerization initiation source to act. The polymerization initiation source is not particularly limited, and a normal polymerization initiator such as an organic peroxide, an azo compound, a persulfate, or ionizing radiation such as γ-rays can be used.

The polymer (a) containing polymerized units of (meth) acrylate containing R ^f groups dispersed in an aqueous medium is preferably dispersed in the form of particles, and the particle system has a particle size of 0. It is preferably about 0.3 to 0.40 μm.

The water-dispersed water / oil repellent composition of the present invention is diluted to an arbitrary concentration according to the purpose and application, and applied to the object to be treated. As the method of applying the object to be treated, any method can be adopted depending on the type of the object to be treated. For example, a known method of coating such as dip coating may be used in which it is attached to the surface of the object to be processed and dried. If necessary, it may be applied together with a suitable crosslinking agent to carry out curing.

The water-dispersed water / oil repellent composition of the present invention exhibits excellent stability even when used in combination with other compounds. Therefore, if necessary, other polymer blenders and other oil repellents can be used. Additives such as water repellent, oil repellent, insect repellent, flame retardant, antistatic agent, dye stabilizer and anti-wrinkle agent can be used in combination. Even when other compounds are used together, excellent water / oil repellency and stability as a dispersion type composition are exhibited.

The article which can be treated with the water and oil repellent of the present invention includes various examples without particular limitation. For example, fiber woven fabric, glass, paper, wood, leather, fur, asbestos, brick, cement, metal and its oxide, ceramic products, plastic and the like.

As the fiber woven fabric, natural animal and vegetable fibers such as cotton, hemp, wool and silk, various synthetic fibers such as polyamide, polyester, polyvinyl alcohol, polyacrylonitrile, polyvinyl chloride and polypropylene, rayon,
Examples of the woven fabric include semi-synthetic fibers such as acetate, glass fibers, carbon fibers, inorganic fibers such as asbestos fibers, and mixed fibers thereof.

[0045]

The mechanism by which the water-dispersed water / oil repellent composition of the present invention exhibits excellent stability is not always clear, but in this composition, the cationic property of the specific quaternary ammonium salt (b) It is considered that the nitrogen atom acts on a coexisting substance such as an acid or an anionic substance in which nitrogen atoms coexist to prevent the contaminant from reacting with other compounds to form a compound insoluble in the aqueous medium from the composition.

[0046]

EXAMPLES Next, examples of the present invention will be specifically described, but the present invention is not limited by the description.

The abbreviations used in the examples have the following meanings.

FA: CF ₃ (CF ₂ ) _n CH ₂ CH ₂ O
A COCH = CH _2, n is a mixture of 5 to 15 and the average is 9.

StA: stearyl acrylate HEA: (2-hydroxyethyl) acrylate GMA: glycidyl methacrylate DOM: dioctyl malate VCl: vinyl chloride DMAA: dimethylacrylamide PEPA: polyoxyethylene polyoxypropylene methacrylate EDMA: ethylene glycol dimethacrylate POE. OPE: Polyoxyethylene / octyl phenyl ether POE / NPE: Polyoxyethylene / nonyl phenyl ether POEL: Polyoxyethylene / lauryl ether

STMAC: Stearyltrimethylammonium chloride DTDMAC: Di (tallow alkyl) dimethylammonium chloride TBAC: Tetrabutylammonium chloride TOMAC: Trioctylmethylammonium chloride DPGMME: Dipropylene glycol monomethyl ether

Polymerization Example 1 154 g of FA, 92 g of StA, 5 g of HEA were added to a 1 liter glass autoclave.
GMA 5g, stearyl mercaptan 0.77g, PO
E ・ NPE20.5g, ion exchange water 330g, DPG
After adding 141 g of MME and 0.5 g of azobis (dimethylene isobutyramidine) hydrochloride, the autoclave was purged with nitrogen. The temperature was raised to 60 ° C. with stirring and polymerization was carried out for 6 hours to obtain a milky white emulsion containing polymer particles having a solid content concentration of 37% and a particle size of 0.11 μm.

[Polymerization Examples 2 to 6] Polymerization monomers and surfactants shown in Table 1 were used to carry out polymerization in the same manner as in Example 2 to obtain emulsions.

[0053]

[Table 1]

[Examples 1 to 5] [Comparative Examples 1 to 6] The emulsions obtained in Polymerization Examples 1 to 2 had solids concentrations of 2
This was adjusted to 0% by weight with water to prepare a stock solution. A predetermined amount of the surfactant shown in Table 5 was added to this stock solution in Examples 1 to 5, and as it was in Comparative Examples 1 to 6,
Further, the water- and oil-repellent performance was evaluated by using a treatment liquid that was diluted so that the ratio of the stock liquid to water was 2% by weight.
Further, 0.01% by weight of nylon acid dye Nirosan Blue was added to the treatment liquid, and the water and oil repellency and stability in the presence of an anionic substance were examined.

The evaluation of the water / oil repellency was carried out on a nylon taffeta cloth treated with water / oil repellency by the method described below. The test cloth was dipped in the treatment liquid prepared above, and the cloth was squeezed between two rubber rollers to obtain a wet pickup of 60% by weight. Then dry at 110 ℃ for 90 seconds, then 170 ℃
To obtain a cloth heat-treated for 60 seconds. It evaluated using this cloth. Table 5 shows the results.

The water repellency and oil repellency shown in the following examples are shown on the following scale. That is,
The water repellency is represented by the water repellency number (see Table 2 below) by the spray method of JIS L-1092, and the oil repellency is shown by the test solution shown in Table 3 below on the sample cloth in a few drops (diameter about 4 mm). ), And after 30 seconds, it was judged by the permeation state (AATCC-TM118-1966).

[0057]

[Table 2]

[0058]

[Table 3]

The stability of the emulsion was evaluated by 2% by weight of the water and oil repellent agent containing the acid dye for nylon prepared above.
Add 300 ml of the diluted solution to a 500 ml beaker at 25 ° C.
After keeping the temperature at 1, the mixture was stirred with a homomixer at 2500 rpm for 5 minutes. The liquid after stirring was filtered through a dark-colored cloth, and the stability was qualitatively judged by the five-grade evaluation shown in Table 4 by the amount of the precipitated polymer remaining on the cloth.

[0060]

[Table 4]

[0061]

[Table 5]

[0062]

The water-dispersed water / oil repellent composition of the present invention comprises:
Excellent water / oil repellency and dispersion stability. Also,
This performance has an advantage that it does not deteriorate even if a co-use aid such as an acid dye or a contaminant is present. Therefore, the water / oil repellent composition of the present invention is excellent in practicality.

Claims (5)

[Claims] 1. An aqueous medium, a polymer (a) containing a unit obtained by polymerizing an acrylate and / or a methacrylate containing a polyfluoroalkyl group, which is dispersed in an aqueous medium, and represented by the following formula 1. A water-dispersed water / oil repellent composition comprising a quaternary ammonium salt (b). Embedded image ^{[(R 1) (R 2} ) (R 3) (R 4) N] + X - R 1 ~R 4 in Equation 1 Equation 1, and X ^- is the following meanings. R ^{1 to} R ⁴ , which may be the same or different, are each a hydrogen atom, an alkyl group, an alkenyl group, an acyl group, a phenyl group, and a phenyl group to which an alkyl group or an alkenyl group is bonded. One group selected. However, at least two groups selected from R ^{1 to} R ⁴ are alkyl groups having 4 to 18 carbon atoms or 4 carbon atoms.
~ 18 alkenyl groups. X ⁻ : a monovalent anion. Wherein wherein X ^-, chloride anion, HSO ₄ ^-, N
_{^{O 3 -, CH 3 COO -}} , CH 3 CH 2 COO -, HCO
The water-dispersed water / oil repellent composition according to claim 1, which is O ⁻ or C ₂ H ₅ SO ₄ ⁻ . 3. A quaternary ammonium salt (b) relative to the total amount of the polymer (a) containing a unit obtained by polymerizing an acrylate and / or methacrylate containing a polyfluoroalkyl group and the quaternary ammonium salt (b). ) 0.1 to 20% by weight of the water-dispersible water and oil repellent composition according to claim 1 or 2. 4. A method according to any one of claims 1 to 3, which comprises a nonionic surfactant.
A water-dispersed water / oil repellent composition according to any one of 1. 5. The water according to claim 4, which contains a polymer (a) produced by emulsion polymerization of an acrylate and / or a methacrylate containing a polyfluoroalkyl group in an aqueous medium in the presence of a nonionic surfactant. Dispersed water and oil repellent composition.