JPH10102006A - Production of substrate for floor-polish and aqueous floor-polish composition containing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a substrate for a floor-polish capable of providing a superior film by cross-linking at a room temperature in a short period by cross-linking a carboxyl group of a polymer having a carboxyl group in an aqueous emulsion with a calcium ion in the presence of a specific compound. SOLUTION: A carboxyl group of (A) an aqueous emulsion or an aqueous dispersion of a polymer selected from α,β-unsaturated carboxylic acid-based polymer containing a carboxylic acid and an aqueous urethane-based polymer is calcium cross-linked by adding (B) an alkali metal hydroxide (e.g. sodium hydroxide) and (C) a compound releasing calcium ion to the component A in the method for producing a substrate for floor-polish. The component C is preferably a calcium hydroxide powder or a calcium oxide powder having 10-300μm average particle diameter. The powder of the calcium hydroxide or the calcium oxide is preferably used as an aqueous dispersion obtained by dispersing the powder in water by using a surfactant. The cross-linking reaction is preferably performed at a room temperature under stirring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor polish base for forming a film, which can form a durable film on various floors and the like, and which can be chemically peeled off when the film becomes dirty. The present invention relates to a method for producing a material and an aqueous floor polish composition containing the substrate.

[0002]

2. Description of the Related Art Various floor polish compositions capable of forming a durable film on a floor or the like have been proposed. These compositions, due to their use characteristics,
Various substrates are used in combination in order to form a water-resistant film on various floors and to be able to chemically remove the film when the film becomes dirty. Among these base materials, those obtained by adding a cross-linking agent to a carboxyl group-containing copolymer aqueous dispersion emulsion to crosslink carboxyl groups are widely used as main base materials. For example, Japanese Patent Application Laid-Open No. 2-219866 describes that a transition metal such as zinc, aluminum, tin, tungsten and zirconium is used as a crosslinking agent. In Examples, the crosslinking reaction is carried out at a temperature of 50 to 77 ° C. Has been done. In this method, a transition metal that is not so preferable in environmental hygiene is used, and as shown in Comparative Example B,
If the crosslinking reaction is performed without heating, there is a problem that precipitation occurs. On the other hand, JP-A-5-5083 discloses that a base is added to a polymer emulsion produced by polymerization of an ethylenically unsaturated monomer to adjust the pH of the emulsion to 6.
After adjusting the acid value of the polymer to 0.09, the acid value is adjusted to 0.0.
It is described that a carboxyl group is crosslinked by reacting 5 to 0.9 chemical equivalent of a calcium compound. Here, an amine and ammonia are exemplified as the base, and it is described that the reaction can be carried out at any temperature of room temperature or under heating. In this method,
When the reaction is carried out under heating, the crosslinking reaction can be completed in a short time, but there is a problem that the crosslinking takes a long time at room temperature.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a method for producing a floor polish base material capable of forming an excellent floor polish film by performing a crosslinking reaction at room temperature and in a short time without heating. The aim is to provide a method. Another object of the present invention is to provide an aqueous floor polish composition containing a base material for floor polish produced by such a production method.

[0004]

SUMMARY OF THE INVENTION The present invention relates to an aqueous emulsion of a polymer having a carboxyl group or an aqueous dispersion before or after crosslinking the carboxyl groups of the aqueous dispersion with calcium ions, or simultaneously with the addition of an alkali metal hydroxide to the aqueous emulsion or the aqueous dispersion. It has been made based on the finding that the above problem can be efficiently solved by adding a substance. That is, the present invention provides an aqueous emulsion or aqueous dispersion of a polymer selected from the group consisting of an α, β-unsaturated carboxylic acid-based polymer having a carboxyl group in the molecule and an aqueous urethane-based polymer, with an alkali metal hydroxide. A method for producing a base material for floor polish, characterized by adding a calcium ion releasing compound to crosslink a carboxyl group in the polymer with calcium. The present invention also provides an aqueous floor polish composition comprising the substrate produced by the above production method.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The α, β-unsaturated carboxylic acid-based polymer having a carboxyl group in the molecule used in the present invention includes acrylic acid, methacrylic acid, maleic acid, itaconic acid, etc. having 3 to 10 carbon atoms. And preferably a polymer of one or two or more kinds of α, β-unsaturated carboxylic acid monomers or salts thereof (including partial salts) of 3 to 6, or styrene monomers such as styrene and styrene sulfonate. And / or copolymers with α, β-ethylenically unsaturated carboxylic acid alkyl esters. Among them, the acid value is 20 to 130 per resin solid content.
And more preferably 35 to 100. The acid value means mg of KOH per 1 g of solid resin.
It can be easily obtained by JIS-K-0070. As the α, β-ethylenically unsaturated carboxylic acid alkyl ester, the alkyl group has 1 to 1 carbon atoms.
2, preferably 1 to 4 alkyl esters, particularly preferably alkyl acrylate and / or alkyl methacrylate.

Although the molar ratio of the α, β-unsaturated carboxylic acid monomer / copolymerizable monomer can be arbitrary,
It is preferably from 3/97 to 20/80, more preferably from 6/94 to 12/88. The α, β-unsaturated carboxylic acid-based polymer has a carboxyl group derived from acrylic acid, methacrylic acid, maleic acid, itaconic acid, or the like, which is a monomer, or a salt thereof in the molecule. In the present invention, these polymers have a weight average molecular weight of 50,000 to 100,000, preferably 60,000.
It is preferred to use those of 000 to 50,000.

The aqueous urethane polymer having a carboxyl group (carboxylic acid group) in the molecule used in the present invention includes a carboxylic acid and / or a carboxylic acid in a chain of a polyurethane resin.
Or those in which a carboxylate is present by bonding. Such a product can be obtained, for example, by adding a diol having a carboxyl group to a diol and a diisocyanate and polymerizing (neutralizing the carboxyl group if necessary) in the production of the polyurethane resin. By introducing a carboxyl group in this manner, a water-dispersible or water-soluble aqueous polyurethane resin can be obtained. Furthermore, if necessary, an emulsifier may be added to make the aqueous solution. The amount of the carboxylic acid and / or carboxylate contained in the polyurethane resin can be expressed as an acid value, and the range of the acid value of the aqueous polyurethane resin is 20 to 1 per resin solid content.
It is preferably 30 and more preferably 40-60. Further, the weight average molecular weight is from 50,000 to 1,000,000.
0, preferably 50,000 to 200,000.

The α, β-unsaturated carboxylic acid-based polymer and aqueous urethane-based polymer used in the present invention may have a carbonyl group in addition to having a carboxyl group or a salt thereof in the molecule. A method for introducing a carbonyl group into these polymers is described in JP-A-5-43821.
Can be used. That is,
When polymerizing an α, β-unsaturated carboxylic acid-based polymer and an aqueous urethane-based polymer, a carbonyl group-containing monomer is used.
It is preferable to contain about 0.1 to 30% by weight. Here, examples of the carbonyl group-containing monomer include one or a mixture of two or more of acrolein, diacetone acrylamide, diacetone methacrylamide, formylstyrene, vinyl alkyl ketone and the like.

Therefore, the α, β-unsaturated carboxylic acid-based polymer used in the present invention may be an α, β-unsaturated carboxylic acid-based monomer or a salt thereof in an amount of 1 to 20% by weight [hereinafter,%
(Especially preferably 8 to 20%), which is a polymer of a monomer mixture in which 0.1 to 30% of a carbonyl group-containing monomer and the balance is an α, β-ethylenically unsaturated carboxylic acid alkyl ester. Preferably, the styrene monomer is 5 to 60% (particularly preferably 8 to 25%).
%), 1 to 20% (particularly preferably 8 to 20%) of an α, β-unsaturated carboxylic acid-based monomer or a salt thereof, 0.1 to 30% of a carbonyl group-containing monomer, and the balance α, β-
Preferably, it is a polymer of a monomer mixture which is an ethylenically unsaturated carboxylic acid alkyl ester. As the aqueous urethane-based polymer, a monomer mixture containing an α, β-unsaturated carboxylic acid-based monomer or a salt thereof at 6 to 20%, a carbonyl group-containing monomer at 0.1 to 30%, and a balance of a urethane-forming monomer is used. Preferably it is a polymer.

The polymer used in the present invention is selected from the group consisting of an α, β-unsaturated carboxylic acid polymer having a carboxyl group in the molecule and an aqueous urethane polymer.
It must be in the form of an aqueous emulsion or dispersion. Among them, the solid content of the polymer is preferably 20 to 50%, more preferably 30 to 40%. In the present invention, an alkali metal hydroxide and a calcium ion-releasing compound are added to an aqueous emulsion or aqueous dispersion of the above polymer to crosslink the carboxyl groups in the polymer with calcium.
Specifically, an alkali metal hydroxide is added, and then a calcium ion releasing compound is added (first embodiment).
Alternatively, an alkali metal hydroxide and a calcium ion releasing compound are added simultaneously (second embodiment), or a calcium ion releasing compound is added and then an alkali metal hydroxide is added (third embodiment). The carboxyl groups in the polymer are crosslinked with calcium.

Here, in the first embodiment, an alkali metal hydroxide is added to and dissolved in the above-mentioned aqueous emulsion or aqueous dispersion. Examples of the alkali metal hydroxide used here include one or a mixture of two or more of sodium hydroxide, potassium hydroxide and lithium hydroxide. In the present invention, the alkali metal hydroxide is added in an amount in the range of 0.05 to 0.6 chemical equivalent, more preferably 0.1 to 0.4 chemical equivalent, based on the acid value in the polymer solid component. Is good. The addition can be carried out using the alkali metal hydroxide itself, or a solution obtained by dissolving the alkali metal hydroxide in water in advance may be used.

In the present invention, a calcium ion releasing compound is then added. As the calcium ion releasing compound to be used, a water-insoluble compound is preferable, and a calcium hydroxide powder or a calcium oxide powder is particularly preferable. These powders preferably have an average particle size of 10 to 300 μm, and more preferably are used as an aqueous dispersion in which the powder is dispersed in water with a surfactant.
Here, examples of the surfactant used include various surfactants, and it is preferable to use one or a mixture of two or more of an anionic surfactant and a nonionic surfactant. Examples of such an anionic surfactant include polyoxyethylene alkyl ether sulfate, and examples of the nonionic surfactant include polyoxyethylene alkyl ether and polyoxyethylene alkyl aryl ether. The aqueous dispersion used in the present invention is preferably 1 to 9 parts by weight of calcium hydroxide powder and / or calcium oxide powder and 9-1 to 1 part by weight of a surfactant based on 100 parts by weight of water. The amount of the calcium ion releasing compound used is 0.0 with respect to the acid value of the polymer.
The amount in which 5 to 0.9 chemical equivalents of calcium ions are reacted is preferable, and the amount is more preferably 0.2 to 0.6 chemical equivalents.

In the present invention, the above-mentioned cross-linking reaction is preferably carried out at normal temperature, for example, at 15 to 25 ° C., and is preferably carried out under stirring by a conventional method. Usually, the crosslinking reaction is completed in about 1 to 10 minutes,
The floor polish substrate can be obtained in the form of an aqueous emulsion or an aqueous dispersion. In a second aspect of the present invention, the alkali metal hydroxide and the calcium ion releasing compound are added simultaneously to the aqueous emulsion or dispersion of the polymer. Also in this case, it is preferable to add under stirring,
It is good to carry out at ~ 25 ° C.

In a third embodiment of the present invention, the calcium ion releasing compound and the alkali metal hydroxide are added in the reverse order of the first embodiment. In the present invention, the first embodiment and the second embodiment are preferable. Using the floor polish base material thus obtained, various additives can be added to prepare various aqueous floor polish compositions. In the aqueous floor polish composition, the base material is preferably contained as a solid content in an amount of 2 to 40%, more preferably 5 to 30%.

As an additive to be used, wax is preferable. By adding the wax, an appropriate sliding property can be obtained, and excellent black heel mark resistance and durability can be obtained. As the wax, natural wax and synthetic wax commonly used for floor polish can be used. In particular,
Natural waxes include carnauba wax, candelilla wax, montan wax, montan derived wax,
Ceresin wax, paraffin wax, etc.,
Examples of the synthetic wax include polyethylene wax, microcrystalline wax, Fischer-Tropsch wax, amide wax, and acrylic wax. Of these, polyethylene wax and acrylic wax are preferred.

By adding an alkali-soluble resin to the floor polish composition of the present invention, the leveling property, the releasability, the gloss and the like can be improved. Examples of the alkali-soluble resin include a styrene-maleic acid copolymer resin, a rosin-maleic acid copolymer resin, and a water-soluble acrylic resin. Although the content of the wax and the alkali-soluble resin in the composition for forming a floor coating of the present invention can be arbitrarily determined, the total amount (solid content) of the base material for the floor polish, the wax and the alkali-soluble resin is 1%.
When the amount is 00 parts by weight, the content of the wax is preferably 5 to 50%, more preferably 10 to 25%.
The alkali-soluble resin is used in the above total amount (solid content) of 10%.
The content is preferably 2 to 20% (as solid content) in 0 parts by weight, more preferably 5 to 10%. Further, an α, β-unsaturated carboxylic acid-based polymer or an aqueous urethane-based polymer having no carboxyl group or a salt thereof or a carbonyl group in the molecule can be contained.

The floor polish composition of the present invention can contain a plasticizer and / or a coalescing agent. Examples of the plasticizer include dibutyl phthalate, dioctyl phthalate, 2-pyrrolidone, tributoxyethyl phosphate, octyl diphenyl phosphate, tricresyl phosphate, and the like. Further, as the coalescing agent, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, trimethylpentanediol / monoisobutylene, N-methyl-2-pyrrolidone, texanol and the like can be used. If desired, a wetting agent such as a fluorine-based surfactant may be contained.
Further, the floor polish composition of the present invention may contain colloidal silica and / or alumina sol.

[0018]

According to the present invention, a substrate capable of forming an excellent coating for floor polish by a crosslinking reaction at room temperature and in a short time (for example, 1 to 10 minutes) is produced. or,
Since the substrate of the present invention not only does not contain volatile components such as amines and ammonium, but also does not contain transition metals such as zinc, when a floor polish composition containing the substrate is applied to a floor, It has excellent advantages such as low odor and little effect on the environment. The resulting film is excellent in transparency, gloss and recoatability, and the aqueous floor polish composition is excellent in stability. Next, the present invention will be described with reference to examples.

[0019]

【Example】

Reference Example 1: Production of Acrylic Emulsions 1 to 3 After nitrogen was sealed in a reaction vessel equipped with a stirrer, a reflux condenser, a dropping funnel, a thermometer and a nitrogen inlet tube, deionized water and an emulsifier (sodium lauryl sulfate) were added. Thereafter, the mixture was heated to 80 ° C. in a water bath. During the stirring, in addition to the catalyst (ammonium persulfate) and the monomer, if necessary, a molecular weight modifier (alkyl mercaptan) was gradually added dropwise over 2 hours to complete the polymerization, thereby completing the acrylic emulsion (1 to 40%) of the active ingredient. 3) was obtained. The raw materials used are shown in Table 1. The numerical values of the raw materials in the table are g.

[0020]

[Table 1] Table-1 Acrylic emulsion 1 23 Methyl methacrylate 27.6 12.0 4.0 n-butyl acrylate 10.0 12.0 14.0 Styrene 12.0 16.0 Methacrylic acid 2.4 4.0 6.0 Lauryl Sodium sulfate 0.5 0.5 0.5 Lauryl mercaptan 0.1- Deionized water 59.4 59.5 59.5 (Acid value per solid resin) 39 65 98

Reference Example 2: Preparation of aqueous polyurethane resin emulsions 4 and 5 Preparation of emulsion 4 158.2 parts by weight of polyester polyol (molecular weight: 1000), 20.7 parts by weight of dimethylolpropionic acid, 109.2 parts by weight of dicyclohexylmethane diisocyanate Parts and 171.1 parts by weight of N-methyl-2-pyrrolidone were placed in a reactor equipped with a reflux condenser, a thermometer, and a stirrer.
While maintaining the temperature at 00 ° C., a urethanization reaction was performed to produce a prepolymer. Next, 15.6 parts by weight of triethylamine was added to the prepolymer to neutralize it, 11.9 parts by weight of hexamethylenediamine was added, and the temperature inside the reactor was kept at 35 ° C. or lower while adding distilled water. A molecular reaction was carried out, and a total of 490.0 parts by weight of distilled water was added by the end of the reaction to obtain an aqueous polyurethane resin 4. The acid value of the aqueous polyurethane resin per solid resin was 30.0.

Preparation of Emulsion 5 Polytetramethylene ether glycol (molecular weight 100
0) 80 parts by weight, 143.7 isophorone diisocyanate
Parts by weight, 64.4 parts by weight of dimethylolpropionic acid and N
163.3 parts by weight of -methyl-2-pyrrolidone was placed in a reactor equipped with a reflux condenser, a thermometer, and a stirrer.
While maintaining the temperature at 00 ° C., a urethanization reaction was performed to produce a prepolymer. Next, 46.7 parts by weight of triethylamine was added to the prepolymer to neutralize it, 11.9 parts by weight of hexamethylenediamine was added, and the temperature in the reactor was kept at 35 ° C. or lower while adding distilled water. A polymerization reaction was performed, and a total of 490.0 parts by weight of distilled water was added by the end of the reaction to obtain an aqueous polyurethane resin 5. The acid value of the aqueous polyurethane resin per solid resin was 90.0.

Example 1 An emulsion prepared in Reference Example was added to a container equipped with a stirrer, and while stirring, an aqueous sodium hydroxide solution (2% solution) was added, followed by addition of an aqueous solution of dispersed calcium hydroxide to perform calcium crosslinking. Was. These operations were performed at 25 ° C. to obtain a floor polish substrate 1. Table 2 shows the used emulsions, aqueous solutions of sodium hydroxide and calcium hydroxide. The numerical values for the components in the table are g. (same as below)

Example 2 The emulsion prepared in Reference Example was added to a container equipped with a stirrer, and a potassium hydroxide solution (5% solution) and a calcium oxide dispersion aqueous solution were added simultaneously with stirring to carry out calcium crosslinking. These operations were performed at 25 ° C. to obtain a floor polishing substrate 2. The emulsion used,
Table 2 shows an aqueous solution of an alkali hydroxide or calcium oxide dispersion.
Shown in Substrates 3, 4, 5, and 6 were obtained in the same manner.

[0025]

[Table 2] Table-2 Substrate No. 1 2 3 4 5 6 Emulsion 1 100 Emulsion 2 100 25 Emulsion 3 100 100 Emulsion 4 100 Emulsion 5 75 sodium hydroxide 0.06 0.28 0.06 Potassium hydroxide 0.78 0.78 Lithium hydroxide 0.46 Calcium hydroxide 0.10 2.32 0.12 2.07 Calcium oxide 0.39 0.67 Surfactant 1 0.1 0.1 0.1 0.15 Surfactant 2 0.15 0.1 Water 33.07 32.06 30.58 99.72 76.55 30.33 Crosslinking time (min) 1 3 10 3 5 5

In the table, emulsions 1 to 3 are acrylic
Emulsion, emulsions 4 and 5 are aqueous polyurethane
It is a tan-based resin emulsion. Calcium hydroxide: average particle size 50μ Calcium oxide: average particle size 80μ Surfactant 1: polyoxyethylene nonylphenyl acrylate
Tell (EO)₄₀ Surfactant 2: polyoxyethylene lauryl ether sulfur
Acid sodium salt (EO) ₃₀: EO in the above surfactant
Represents ethylene oxide. Comparative Example 1 In the same manner as in Example 1 except that the components shown in Table 3 were used.
To prepare base materials 7 and 8 for comparison floor polish.
Was.

[0027]

[Table 3] Table-3

As for zinc ammonium carbonate, 54% of water, 10% of zinc oxide, 18.0% of 28% aqueous ammonia and 18% of ammonium hydrogencarbonate were added to a container equipped with a stirrer, and stirring was continued until the mixture became transparent. The obtained zinc carbonate ammonium complex having a zinc content of 8.03% was used. Example 3 In a vessel equipped with a stirrer, an alkali-soluble resin and a wax were added in this order while stirring the base material in Table 2 or 3. On the other hand, the coalescing agent, plasticizer, and fluorocarbon surfactant are added to another container and stirred, and when the mixture becomes uniform, the same amount of water is added and emulsified. The aqueous floor polish compositions 1 to 8 * were obtained by gradually adding the mixture to the container and stirring for 1 hour. The components used are shown in Table-4.

[0029]

[Table 4] Table-4 Composition No 1 2 3 4 5 6 7 * 8 * Base 1 of the present invention 58.33 Base 2 of the present invention 50.00 23.33 Base 3 of the present invention 4 40.00 Base 4 of the present invention 3 35.00 Base 5 of the present invention 18.89 Base material of the invention 6 53.33 Base material for comparison 7 58.33 Base material for comparison 8 40.00 Alkali-soluble resin 1 5.95 1.79 2.38 5.95 1.79 Alkali-soluble resin 2 13.33 Wax 1 12.50 7.50 5.63 5.00 1.88 10.00 12.50 5.63 Wax 2 7.50 Ethyl carbitol 6.67 2.70 3.00 1.30 0.20 4.00 6.67 3.00 Dipropylene glycol 2.70 1.30 Monomethyl ether ethylene glycol 1.00 Tryptoquin ethyl 1.67 1.33 1.00 0.60 0.40 2.67 1.67 1.80 Phosphate dibutyl phthalate 0.83 0.50 0.50 Fluorocarbon surfactant 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 Water 14.01 22.40 48.04 24.85 78.59 28.66 14.84 46.24

Compositions 1 to 6 in the table are products of the present invention, and compositions 7 * and 8 * are comparative examples. Alkali-soluble resin 1: Acrylic emulsion-based alkali-soluble resin manufactured by Rohm and Haas Company, USA, trade name:
Primal B-644 (active ingredient 42%) Alkali-soluble resin 2: Styrene-maleic acid-based alkali-soluble resin manufactured by Arco Chemical Co., USA, trade name: SM
A2625A (acid value 220) dissolved in aqueous ammonia (active ingredient 15%) Wax 1: polyethylene wax manufactured by Allied Chemical Co., USA, trade name: AC-392 emulsified with a nonionic surfactant (active ingredient 40%) Wax 2: Acrylic wax manufactured by Nippon Shokubai Co., Ltd. Trade name: CX-ST200 (active ingredient 40%) The performances of the aqueous floor polish compositions 1 to 8 thus obtained were examined as follows. .

Stability JIS K 3920-1991 (floor polish test method) -12 Performed according to storage stability. At normal temperature and dried for 48 hours and held horizontally Samples were taken 2ml flat Petri dish transparency inner diameter 85mm coating. The transparency of the film after drying is visually evaluated. Gloss JIS K 3920-1991 (floor polish test method) -14 Gloss was measured according to the degree of gloss. Re coatability JIS K 3920-1991 (floor polish test method) was applied according to the film adjustment by -6.5 gauze, to evaluate the reduction in solubility and gloss of film under during recoating visually. The results are shown in Table-5.

[0032]

[Table 5] Table-5 Composition No. 1 2 3 4 5 6 7 * 8 * Stability Stable Stable Stable Stable Stable Stable Precipitated Stable Transparency of the film Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparent Transparency Excellent Excellent Excellent Excellent Excellent Excellent Poor Compositions 1 to 6 in the inferior table are products of the present invention, and compositions 7 * and 8 * are comparative examples.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akiko Suda 9-1-306, Sugogaoka, Miyamae-ku, Kawasaki-shi, Kanagawa Prefecture (72) Ryuichi Hamaguchi 202-20 Nishi-Ayase, Adachi-ku, Tokyo Yuho Chemical Nishi-Ayase Dormitory 202 (72) Inventor Yasuhiro Takahashi 2219 Izumi-cho, Izumi-ku, Yokohama, Kanagawa

Claims (5)

[Claims] 1. α, β having a carboxyl group in the molecule
An alkali metal hydroxide and a calcium ion releasing compound are added to an aqueous emulsion or aqueous dispersion of a polymer selected from the group consisting of an unsaturated carboxylic acid-based polymer and an aqueous urethane-based polymer, so that the carboxyl groups in the polymer are adjusted to calcium. A method for producing a base material for floor polish, comprising crosslinking. 2. The calcium ion releasing compound is calcium hydroxide powder or calcium oxide powder.
The manufacturing method as described. 3. The method according to claim 1, wherein the calcium hydroxide powder or the calcium oxide powder is added as an aqueous dispersion dispersed in water with a surfactant. 4. The method according to claim 1, wherein the crosslinking reaction is carried out at room temperature. 5. An aqueous floor polish composition comprising a substrate produced by the production method according to claim 1.