JPH0693233A - Coating compound for floor - Google Patents

Abstract

PURPOSE:To obtain a coating composition for floor having excellent leveling, wetting, etc., free from an offensive smell, comprising a solvent consisting essentially of a specific alkylene glycol alkyl ether and a water-insoluble polymer. CONSTITUTION:A resin composition comprises (A) 0.1-20wt.% solvent consisting essentially of an alkylene glycol alkyl ether of the formula (R<1> and R<2> are H or 1-8C alkyl and R<1> and R<2> are not H at the same time; (a) and (b) are 0-3 integer, respectively and (a) and (b) are not 0 at the same time), having a content of an impure substance with 50-300 molecular weight to cause an offensive smell in an amount to give to the ratio of a peak area of the impure substance to a peak area of the alkylene glycol alkyl ether by head space GC-MS analysis of <=0.5% and (B) 0.1-50wt.% water-insoluble polymer (e.g. styrene/acrylic acid/methacrylic acid/ethyl acrylate copolymer) preferably in an aqueous emulsion state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor coating composition which does not have a bad odor and has a good feeling in use.

[0002]

2. Description of the Related Art Generally, a wooden floor of a building is made of natural wood or its plywood coated. For this reason, water easily enters through the vascular bundle portion and the joint portion of the plate material, and is also easily damaged due to daily friction with furniture such as chairs and tables. Therefore, generally, the surface of such a wooden floor is coated with a floor coating material containing waxes to form a protective coating (coating coating).

In addition to a coating base and the like, conventionally used floor coating agents must have an improved leveling property and wettability to the object to be treated, and a solvent that also acts as a surfactant aid. It is included as an ingredient. However, the malodor which is considered to be caused by this solvent reduces the feeling of use, which is a major factor limiting the use of floor coverings.

[0004]

DISCLOSURE OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a floor coating composition which does not cause a bad odor and is excellent in leveling property and wettability to an object to be treated. And

[0005]

Therefore, as a result of various investigations on the compounding components of conventional floor coating compositions, the present inventors have found that the cause of the malodor is not the solvent component itself contained therein but the solvent component. The present invention was completed as a result of discovering for the first time that it is a trace amount of volatile substances among impurities mixed in the above, and conducting research based on the findings.

That is, the present invention provides (A) the following formula (1); R ¹ O (C ₂ H ₄ O) _a (C ₃ H ₆ O) _b R ₂
(1) (In the formula, R ¹ and R ² each represent a hydrogen atom or a linear or branched alkyl group having 1 to 8 carbon atoms, and when either one is a hydrogen atom, the other is a different group. A and b each represent an integer of 0 to 3, and when either one is 0, the other represents an integer of 1 or more), which is a solvent containing an alkylene glycol alkyl ether as a main component. , The content of the impurities having a molecular weight of 50 to 300 is such that the ratio of the peak area of the impurities having a molecular weight of 50 to 300 to the peak area of the alkylene glycol alkyl ether by headspace GC-MS analysis is 0.
A floor coating composition comprising a solvent in an amount of 5% or less, 0.1 to 20% by weight, and (B) a water-insoluble polymer, 0.1 to 50% by weight. Is.

The solvent of the component (A) used in the present invention contains an alkylene glycol alkyl ether represented by the formula (1) as a main component. Examples of the alkylene glycol alkyl ether include ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, tripropylene glycol dimethyl ether and polyoxyethylene (a = 1 in the formula (1)) polyoxy. Propylene (in the formula (1), b = 3) glycol monobutyl ether and the like can be mentioned. These can be used in combination of two or more kinds.

Further, it is presumed that the solvent containing the alkylene glycol alkyl ether as the main component (A) used in the present invention is by-produced at the time of production or is derived from the raw material, as all or a part of a trace amount of impurities. Molecular weight of 50 to 3
00 substances are mixed. The content of the substance having the molecular weight of 50 to 300 in the component (A) is the peak of the substance having the molecular weight of 50 to 300 with respect to the peak area of the alkylene glycol alkyl ether (1) as the main component by the headspace GC-MS analysis under the following conditions. It is defined by the area ratio [peak area of a substance having a molecular weight of 50 to 300 x 100 / peak area of alkylene glycol alkyl ether (1)] (hereinafter referred to as "peak area ratio").

[0009]

[Table 1] [Headspace GC-MS analysis conditions] (1) Measuring instrument Headspace sampler: HP 19395 A (HEWL
ETT PACKARD) Gas Chromatography: HP 5890 SERIE
S II (made by HEWLETT PACKARD) Detector: HP 5971 A MASS SELECTIVE DETECTO
R MASS range 10 to 400 (manufactured by HEWLETT PACKARD) (2) Conditions for gas chromatography Column: DB-WAX 30 m × 0.32 × 50 μm
(Manufactured by J & W) Carrier gas: He 1.84 ml / min Split vent. 20.0 ml / min Total Split vent. 124 ml / min Column temperature raising conditions: 0 to 2 minutes 40 ° C. constant 2 to 12 minutes 4 ° C./minute to 80 ° C. 12 to 19 minutes 10 ° C./minute to 150 ° C. 19 to 31 minutes 150 ° C. Sample injection temperature: 230 ° C Detection temperature: 250 ° C (3) Headspace condition Sample container: 20 ml vial container Sample amount: 10 ml Heating condition: 90 ° C, 1.5 hours

That is, the content of the substance having a molecular weight of 50 to 300 in the solvent containing the alkylene glycol alkyl ether as the main component (A) has a peak area ratio of 0.
The amount is 5% or less. This peak area ratio is 0.5
If it exceeds%, a odor is felt during use of the composition. A preferable peak area ratio is 0.2% or less. Of the component (A), preferred examples of diethylene glycol monobutyl ether include trade name BDG-NS (manufactured by Nippon Emulsifier Co., Ltd., purity 99.71%) and Butycenol.
(Manufactured by Kyowa Yuka Co., Ltd., purity 99.84%) and the like. The ratio of the peak areas of impurities by the headspace GC-MS analysis is 0.1% or less.

The blending ratio of the component (A) in the composition is 0.1 to 20% by weight. If the blending ratio is less than 0.1% by weight, leveling properties, wettability to the object to be treated and detergency are deteriorated, and if it exceeds 20% by weight, it takes too long to form the coating film. A preferred blending ratio is 3 to 10% by weight.

The water-insoluble polymer as the component (B) used in the present invention is a component that forms a coating film when the composition of the present invention is applied to a floor surface or the like.

Examples of the component (B) include polymers of ethylenically unsaturated monomers, preferably emulsion polymers of ethylenically unsaturated monomers. The ethylenically unsaturated monomer may be a C ₁ -C ₈ alkyl acrylate or methacrylate, mono- or di-
(C ₁ -C ₅ ) alkyl itaconate or fumarate,
Maleic anhydride, styrene, vinyltoluene, acrylonitrile, methacrylonitrile, acrylamide,
Methacrylamide, acrylic acid, methacrylic acid, itaconic acid, fumaric acid, citraconic acid, crotonic acid, β-acryloxypropionic acid, hydroxy (C ₁ -C ₆ ) alkyl acrylate or methacrylate, and divinylbenzene may be mentioned. These can be used in combination of two or more. These water-insoluble polymers are
It is preferably formulated in the form of an aqueous emulsion.

The blending ratio of the component (B) in the composition is 0.1 to 50% by weight. If the mixing ratio is less than 0.1% by weight, it is difficult to form a coating film, and if it exceeds 50% by weight, aggregation occurs even during storage, which is not suitable for practical use.
The preferable blending ratio of the component (B) is 1 to 20% by weight.

The composition of the present invention may contain water if necessary.
˜90% by weight can be blended. Mixing ratio of water is 1
If it is less than 0% by weight, the component (B) will agglomerate even during storage, making it unsuitable for practical use, and if it exceeds 90% by weight, it becomes difficult to form a coating film, which is not preferable. A preferable blending ratio of water is 50 to 80% by weight.

In addition to the above-mentioned component (B), the composition of the present invention comprises, as a coating film forming component, a silicone or an aqueous emulsion thereof modified with the above-mentioned ethylenically unsaturated monomer or a polymer thereof, at room temperature. A material capable of forming a covering film can be blended. Among these modified silicones, polyether-modified silicone, carboxy-modified silicone, and amide-modified silicone having a silicone solid content of 1 to 50% by weight are preferable in order to improve wettability with an object to be treated.

In the present invention, it is preferable that the residual amount of the unpolymerized polymer such as the component (B), which is a component for forming a coating film, is 0.1% by weight or less in the composition, It is more preferable that the content be 0.01% by weight or less.

The composition of the present invention has the following formula: CH ₃ (CH ₂ ) _c O (CH ₂ CH) in order to improve the wettability with the object to be treated.
₂ O) _d H (in the formula, c represents an integer of 8 or more, and d represents an integer of 1 or more), and a polyalkoxylate of a linear aliphatic alcohol can be blended. The blending ratio of this polyalkoxylate in the composition is 0.1.
~ 3 wt% is preferred.

Further, the composition of the present invention has the following formula for improving spreadability:

[0020]

[Chemical 1]

A polyalkoxylate of a branched aliphatic alcohol represented by the formula (wherein e, f and g represent an integer of 0 or more and h represents an integer of 1 or more) can be blended. The polyalkoxylate content in the composition is preferably 0.1 to 20% by weight.

Further, the composition of the present invention has the following formula in order to improve the detergency for the object to be treated and the adhesion of the coating film to the object to be treated.

[0023]

[Chemical 2]

(I and j are integers of 0 or more, and k is 1
Polyalkoxylate of aliphatic secondary alcohol represented by the above integer (polyalkoxylated aliphatic secondary
Grade alcohol). The proportion of polyalkoxylate in the composition is 0.1 to 3% by weight.
Is preferred.

In addition to the above components, the composition of the present invention also comprises
As a plasticizer, a carboxylic acid ester such as oleic acid ester, adipic acid ester, azelaic acid ester, and sebacic acid ester may be added in an amount of 0.5 to
3 wt% can be blended. Further, as a polishing component, natural or synthetic waxes, for example, carnauba wax, candelilla wax, Fischer-Tropsch wax, microcrystalline wax, lanolin, cacao butter, cottonseed oil, stearic acid, stearyl alcohol, wood wax, Pepery, Mirchi, Nutmeg, palm kernel oil, beeswax, whale wax, Chinese wax, sheep fat, oxidized polyethylene wax, polyethylene, polypropylene, copolymer of ethylene and alkyl acrylate and acid, hardened oil of coconut oil or soybean oil, paraffin, ceresin, Mineral waxes such as montan and ozokerite can be included. Further, as an alkaline agent, monoethanolamine, diethanolamine, triethanolamine, etc. are added to the composition in an amount of 0.0
1 to 5% by weight can be blended. In order to improve spreadability and peelability, the alkali-soluble resins have an acid value of 100 to 300 and a number average molecular weight of about 200.
The styrene-maleic acid resin, the alkali-soluble alkyd resin, and the acrylic oligomer of about 10,000 can be added in an amount of 0.1 to 20% by weight in the composition.

The composition of the present invention further contains a surfactant such as soap, a solvent such as ethanol, an antibacterial agent, a fragrance, an antifoaming agent (silicone, etc.) for the purpose of improving the performance such as usability and stability. Can be blended.

The composition of the present invention can be applied by, for example, a method of directly applying to the object to be processed by a squeeze bottle or a trigger spray, or a method of applying it to the object to be processed by immersing it in a rag, mop or the like. .

[0028]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

Examples 1 and 2 and Comparative Examples 1 to 3 Using the following components, compositions of the present invention having the compositions shown in Table 2 were produced. (A) -1: Diethylene glycol monobutyl ether (manufactured by Nippon Emulsifier Co., Ltd., BDG-NS, purity 99.71)
%, Purity according to headspace: Peak area ratio 0.1
% Or less) (A) -2: diethylene glycol monobutyl ether (manufactured by Nippon Emulsifier Co., Ltd., BDG, purity 99.84%, headspace purity: peak area ratio 3.0%) (B): water-insoluble polymer emulsion ( Copolymer of styrene / acrylic acid / methacrylic acid / ethyl acrylate) (C): water (D): monoethanolamine

[0030]

[Table 2]

The following tests were conducted on each of the obtained compositions. The results are shown in Table 3. Gloss: Tested according to JIS Z8741. However, it is the value after drying when applied to the floor at 10 g / m ² . Durability: The same amount of each composition was applied to 30 cm ² of the kitchen floor of a general household, and after one month, sensory evaluation was performed by 10 panelists, and the average value was calculated. The evaluation criteria are as follows.
5: No deterioration is recognized. 4: Slightly reduced gloss. 3: Gloss decreased. 2: Stain due to water etc. is recognized. 1: water,
Peeling due to abrasion is recognized. Coating extends property: 3.3 m Have applied to 10 panelists in the ^second floor in an amount of 10 g / m ^2, gave an average value of subsequent sensory evaluation values. The evaluation criteria are as follows. 5: Easy to spread. 4: Slightly easy to spread. 3: Normal. 2: Slightly difficult to spread. 1: It is difficult to spread. Finish: A panel of 3.3 m ² was applied to 10 panelists in an amount of 10 g / m ² , and after drying, the average value of sensory evaluation by another 10 panelists was given. The evaluation criteria are as follows. 5: Beautifully finished. 4: A slight wiping unevenness is recognized. 3: Some uneven wiping is recognized. 2: Uneven wiping and cissing on the floor are observed. 1: Uneven wiping and cissing on the floor are observed on the entire surface. Odor: 19.8 m asked to applying the 10 panelists in ² floor in an amount of 10 g / m ^2, to obtain an average value of values sensory evaluation while working. The evaluation criteria are as follows. 5: It smells good. 4: Smells a little. 3: Normal. 2: Slightly bad smell. 1: The smell is bad. Detergency: The composition of 30 cm ² of each composition was randomly applied to the kitchen floor of a general household which had not been cleaned for 10 days, and the detergency after drying was averaged by sensory evaluation by 10 panelists. I put it out. The evaluation criteria are as follows. 5: Most of the dirt was removed. 4: Slight stain remains.
3: Some dirt remains. 2: Stain remains. 1: No detergency is observed. No change in dirt condition before use.

[0032]

[Table 3]

[0033]

INDUSTRIAL APPLICABILITY The floor coating composition of the present invention limits the content of impurities having a molecular weight of 50 to 300 contained in the alkylene glycol alkyl ether solvent to a predetermined amount or less. Therefore, even when the work is applied to the floor, it does not have a bad odor, so that the feeling of use is very excellent. In addition, the spreadability and cleaning power are excellent, and the gloss and finish of the coating film are good, and its durability is also excellent.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kozo Ohira 2-4-39 Tenjin Utsunomiya City, Tochigi Prefecture Wing States 1003

Claims (1)

[Claims] 1. (A) The following formula (1); R ¹ O (C ₂ H ₄ O) _a (C ₃ H ₆ O) _b R ₂ (1) (wherein R ¹ and R ² are respectively A hydrogen atom or a linear or branched alkyl group having 1 to 8 carbon atoms is shown, and when either one is a hydrogen atom, the other is another group, and a and b each represent an integer of 0 to 3. , And the other is an integer of 1 or more when the other one is 0) is a solvent containing an alkylene glycol alkyl ether as a main component, and the content of impurities having a molecular weight of 50 to 300 is The ratio of the peak area of the impurity having the molecular weight of 50 to 300 to the peak area of the alkylene glycol alkyl ether by GC-MS analysis is 0.
A floor coating composition comprising a solvent in an amount of 5% or less, 0.1 to 20% by weight, and (B) a water-insoluble polymer, 0.1 to 50% by weight.