JP2000026804A - Water repellent jelly polishing agent for coated surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a jelly-like polishing agent which has a decreased solid content required for maintaining its shape, needs neither a drying step in waxing nor a step of wiping off surplus wax and is free from a petroleum-based solvent by compounding, as indispensable ingredients, a polyacrylic acid as a shape- maintaining agent, and a polishing agent. SOLUTION: The objective water-repellent polishing agent comprises 0.1-0.9 wt.% of a polyacrylic acid as a shape-maintaining agent, and a polishing agent. As effective ingredients of the polishing agent, are contained waxes, silicone oils, fine powder and resins. The contents of these ingredients in the water repellent polishing agent are preferably, in terms of pure component, 0.1-5 wt.% for waxes, 0.2-6 wt.% for silicone oils, 0.05-3 wt.% for fine powder and 0.03-5 wt.% for resins. As the polyacrylic acid is preferable one having a viscosity, of 0.5 wt.% aqueous solution neutralized with NaOH, of at least 8,000 cPs at 25 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-repellent polishing agent for a gel-like painted surface, which removes dirt from a painted surface of a vehicle and further protects the painted surface so that the originally beautiful condition is maintained. The present invention relates to a water-repellent polishing agent which forms a film that can be formed.

[0002]

2. Description of the Related Art Vehicle coatings are generally found in nature, such as dust, dust, dirt and mud, exhaust gases, tire wear mist, asphalt and pitch, factory smoke and construction. It is in a situation where it is very easy to get dirty due to mist from the site and farms, and components of acid rain.
These are firmly adhered to such an extent that they are not easily removed by washing with water or simple washing. Eventually,
These not only impair the aesthetics of the coating film of the vehicle, but also become a major enemy of the deterioration of the coating film. Therefore, we prevent deterioration of coating film,
Car waxes such as cleaner waxes are required to maintain aesthetics.

[0003] These car waxes remove dirt on the painted surface, and further form a water-repellent, glossy and slippery film on the painted surface to protect the aesthetics and deterioration of the coated film. .

[0004] In general, car waxes are classified into three types: solid waxes, semi-serious waxes, and liquid waxes. Of course, those that are not flowable are solid waxes and semi-nelli waxes. Solid wax is a wax component, such as carnauba wax, mixed with silicone oil and petroleum-based solvent, heated and uniformly dissolved, and then cooled and solidified. Is
A wax component and a petroleum-based solvent are mixed, heated, and then water, a surfactant, and silicone oil are added with stirring, and cooled to form a paste.

[0005] As a method of using the above car wax, generally, a painted surface of a vehicle is lightly and evenly spread with a urethane sponge, dried, and after a petroleum solvent or water evaporates, it is generally wiped off with a waste cloth. It is a target. here,
From the viewpoint of usability, a paste-like semi-tony wax is most preferable. Solid wax is hard and difficult to remove with a urethane sponge, and it is difficult to evenly and evenly paint the painted surface of a vehicle. Conversely, liquid wax has a low viscosity, so that it may seep into bubbles of urethane sponge or scatter around when attached to the sponge. Therefore, paste-like wax is the easiest to use in terms of usability.

[0006] Further, the wax in the form of a paste requires a solid content of at least 1% or more to maintain the shape of the paste in a paste form, and if the solid content is large, about 5% is required. Therefore, as a usage method,
After painting the painted surface of the vehicle with a urethane sponge and evaporating the petroleum solvent or water sufficiently, the waste wax must be wiped off, and it takes a lot of time to wax. Was needed. For that reason,
A simple car wax that requires only waxing to complete waxing is required. In order to complete the process simply by applying, a large amount of the shape preserving agent is absolutely unnecessary, and the shape preserving agent must be reduced.

[0007] In addition, a petroleum solvent is used as a component of the paste wax, the solid wax, and the liquid wax, which can be said to be common to all of them. Generally, a petroleum-based solvent is an aliphatic hydrocarbon-based solvent typified by mineral spirits. However, considering the effects on the human body, recent VOC (volatile organic compound) regulation problems, and odor problems, It is better to go in the direction not in use.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a wax having the above-mentioned problems, that is, a paste, cream, or gel having a good feeling of use. We studied a polishing agent for painted surfaces of vehicles, which does not require a drying process at the time or an extra wax wiping process and does not contain petroleum solvents.

As a result of intensive studies and studies, the present invention which solves the above-mentioned problems has been completed, and the present invention comprises 0.1 to 0.9% by weight of polyacrylinoleic acid as a shape-retaining agent and a polishing agent. Characteristic gel-like water-repellent polishing agent for painted surfaces.

Polyacrylic acid is a carboxyvinyl polymer, has a high affinity for water, and is capable of obtaining a thixotropic gel-like high-viscosity material having a high yield value by neutralization with an inorganic or organic alkali. And the gel will resemble the shape of a semi-nelli wax. As the solvent, water, alcohols, glycols and the like can be used, and the viscosity can be increased without using a petroleum-based solvent.

Other water-soluble gelling agents include starch,
Gum arabic, agar, guar gum, gelatin, alginic acid, polyacrylamide, veegum, bentonite, methylated cellulose, etc. are raised, but all are unsuitable because they cannot produce sufficient viscosity with a small amount, and only a small amount of polyacrylic acid And a sufficient viscosity can be obtained, and waxing is possible only by applying without wiping.

The concentration of polyacrylic acid is preferably 0.1 to 0.9% by weight, particularly preferably 0.25% to 0.7% by weight. If the content is less than 0.1% by weight, a sufficient gel-like paste will not flow even if neutralized with an alkali, and will flow. If the content is more than 0.9% by weight, the polyacrylic acid adheres to the painted surface during waxing and sticks, so that the coated surface does not need to be wiped and is not polished. 0.5 for polyacrylic acid
A polyacrylic acid having a viscosity of not less than 8000 cps (25 ° C.) of a NaOH neutralized solution of a weight% aqueous solution of polyacrylic acid is preferable, and the viscosity is measured by a B8H type rotational viscometer at 20 rpm.

As a wax which is one of the active ingredients of the gel-like polishing agent used in the present invention, a wax emulsion is preferable. Wax emulsions include carnauba wax emulsion, paraffin wax emulsion, montan wax emulsion, polyethylene wax emulsion, synthetic hydrocarbon wax emulsion, candelilla wax emulsion, beeswax wax emulsion, wood wax emulsion, Examples include shellac wax emulsions and microcrystalline wax emulsions. These can be used alone, but there is no problem if two or more kinds are combined. Preferably, an emulsified product of polyethylene wax, carnauba wax, paraffin wax, and synthetic hydrocarbon wax having good water repellency is used.

The amount used is preferably from 0.1% by weight to 5% by weight, more preferably from 0.25% by weight to 3% by weight, as a pure wax solid content before emulsification. If the amount is less than 0.1% by weight, a sufficiently uniform film cannot be formed on the surface of the vehicle, and not only a sufficient water repellent effect cannot be obtained, but also a sufficient gloss cannot be obtained. Conversely, 5
If the weight percent is exceeded, it will adhere to the painted surface of the vehicle, and will not be a polish that can be applied by simply painting without wiping.

It is preferable to use a silicone oil emulsion as the silicone oil used in the present invention. The emulsions include dimethyl silicone oil emulsion, alkyl-modified silicone oil emulsion, polyether-modified silicone oil emulsion, alcohol-modified silicone oil emulsion, fluorine-modified silicone oil emulsion, amino-modified silicone oil emulsion,
Emulsions of mercapto-modified silicone oil, emulsions of epoxy-modified silicone oil, emulsions of carboxy-modified silicone oil, emulsions of higher fatty acid-modified silicone oil, emulsions of carnauba-modified silicone oil, emulsions of amide-modified silicone oil, and the like. These can be used alone, but there is no problem even if two or more kinds are used in combination.

The amount of the pure silicone oil before emulsification is preferably 0.2 to 6% by weight, more preferably 0.4 to 4% by weight. If the content is less than 0.2% by weight, the active ingredient cannot be uniformly applied on the painted surface of the vehicle, or wax or resin may be
It sticks. Conversely, if the content is more than 6% by weight, the oil will be loose and will remain on the painted surface and will be glaring, failing to produce a beautiful finish.

The fine particle powder used in the present invention is required for the preparation of a cleaner or a uniform film regardless of whether it is inorganic or organic, if it is fine particles. Such powders include kaolin, talc, silica, diatomaceous earth, perlite,
Silica, calcium carbonate, zeolite, alumina, aluminum hydroxide, chromium oxide, titanium oxide, zinc oxide,
Examples include cerium oxide, zirconium silicate, diamond powder, glass powder, PTFE resin powder, silicone powder, nylon powder, and the like. These can be used alone or in combination of two or more.

The particle size of these powders is 0.5 to 5 μm.
Must be. If it is less than 0.5 μm, there is no cleaner effect. Conversely, if it is more than 5 μm, fine particles remain at the time of application and emerge white on the painted surface, or the painted surface is damaged by polishing. 0.05 as used amount
To 3% by weight, particularly 0.1% to 1.5% by weight.
% By weight is preferred. If the amount is less than 0.05% by weight, there is no cleaner effect or no effect for forming a uniform film. Conversely, if it exceeds 3% by weight, fine particles will remain at the time of application, and will appear white on the painted surface,
A uniform film cannot be formed by adsorbing wax or silicone oil.

The resin in the present invention is added for improving the water repellency sustaining performance. As such resins, an emulsion of a petroleum resin, an emulsion of a silicone resin, an emulsion of an acrylic resin, and an emulsion of a fluororesin are particularly preferred, but are not limited thereto.
These resins can be used alone or in combination of two or more. The amount used is preferably from 0.03% by weight to 5% by weight, more preferably from 0.03% by weight to 3% by weight, as a pure resin content.
If it is less than 0.03% by weight, the performance as a resin cannot be obtained, and the water repellency sustaining performance cannot be improved. Conversely, if it is used in an amount of more than 5% by weight, waxes or powders are fixed by the fixing action of the resin, and a clean surface is not obtained.

In the product of the present invention, a preservative, a plasticizer, an ultraviolet absorber, a detergent, a chelating agent and the like can be added as required in addition to the above essential components. Examples below,
The present invention will be described in detail with reference to comparative examples.

Next, components used in Examples and Comparative Examples will be briefly described.・ Emaster 0001 Nippon Seiwa Co., Ltd., wax emulsion based on microcrystalline wax, anionic emulsion, 40% concentration ・ Emaster 0164 Nippon Seiro Co., Ltd., wax emulsion based on carnauba wax, nonionic emulsification Product, 30% concentration ・ Emaster 0136 Nippon Seiro Co., Ltd., wax emulsion based on paraffin wax, nonionic emulsion, 40% concentration ・ Polygen PE BASF Corporation, wax based on polyethylene, emulsification of ethylene Manufactured by polymerization, pH 9.0 to 11.0, 40% concentration. J-643 Chukyo Yushi Co., Ltd., polyethylene-based wax having a melting point of 99 ° C, anionic emulsion, 35
% Concentration J-642 Chukyo Yushi Co., Ltd., polyethylene-based wax having a melting point of 88 ° C., anionic emulsion, 35
% Concentration SH7036 Toray Dow Corning Silicone Co., Ltd., anionic emulsion of dimethylpolysiloxane having a viscosity of 350 cs, 38% concentration, pH 8.5 SM7025 Toray Dow Corning Silicone Co., Ltd., anion of dimethylpolysiloxane having a viscosity of 5000 cs Emulsion, 33% concentration, pH 8.0-BY22-820 Toray Dow Corning Silicone Co., Ltd., nonionic emulsion of carboxyl-modified silicone oil, concentration 20%, pH 4.0-Silcast E Shin-Etsu Chemical Co., Ltd. Emulsion of paintable silicone oil, specific gravity 1.0, concentration 10%. Silicon Star YO-50S Nissin Chemical Laboratory Co., Ltd., nonionic emulsion of dimethylpolysiloxane having a viscosity of 500 cs, concentration 30%, pH 7.0 Carbopol EZ-1 F. Goodrich Chemical Company, 0.5% solids aqueous solution neutralization viscosity is 50,000c
p. polyacrylic acid, good water dispersibility-Carbopol 94.0 F. Goodrich Chemical Company, 0.5% solids aqueous solution neutralization viscosity is 50,000c
Polyacrylic acid of p. Hibiswako 103 Wako Pure Chemical Industries, Ltd., 0.2
% Neutralized solution having a viscosity of 13,000 to 27,000 cp and a carboxyl group content of 55.7 to 63.4%. Hibiswaco 104 Wako Pure Chemical Industries, Ltd., 0.2
Polyacrylic acid having a viscosity of 22,000 to 40,000 cp and a carboxyl group content of 55.7 to 63.4%. Junlon PW-110, Nippon Pure Chemical Industries, Ltd., 0.2%
Neutralization solution is 8000-20,000 cps / 25 ° C, 0.2
% Aqueous solution of polyacrylic acid having a pH of 3 to 3.8 ・ Sylysia 350 Fuji Silysia Chemical Ltd., average particle size 1.8 μm (coal counter method), surface area 300
Silica fine particle powder of m ² / g (simple BET method) ・ Sylysia 250 Fuji Silysia Chemical Ltd., average particle size 2.7 μm (coal counter method), surface area 300
Silica fine particle powder of m ² / g (simple BET method) Satinton W Engelhard Co., average particle size 1.4
μ insoluble aluminum silicate fine powder B703 Nippon Light Metal Co., Ltd., 99.6% Al (O
H) ₃ , average particle diameter 2 μ, BET specific surface area 7 m ² / g
R2701 Wacker Chemicals East Asia Co., Ltd., silicone resin emulsion, methyl silicone resin anionic surfactant emulsion, 40% concentration,
pH about 6 A-614 Zeneca Corporation, acrylic resin emulsion, 32% concentration, pH 8.0, viscosity 200 eps / 25
° C Primal AC-22 Rohm and Haas Japan K.K., acrylic resin emulsion, nonionic, 44.5% concentration, pH 9.8, viscosity 500 cps Cellosol D355 Chukyo Yushi Co., Ltd., petroleum resin emulsion, 40% concentration, pH8 Dickguard F-90N Dainippon Ink and Chemicals, fluororesin emulsion, concentration 20%, nonionicity KM-9717 Shin-Etsu Chemical Co., Ltd., silicone resin emulsion, concentration 60%, viscosity (25 ° C) 1390
cp, pH (25 ° C.) 7.3 Hoechst Wax S Clariand Japan Co., Ltd.
Higher fatty acids having an acid value of 135 to 155 ・ Polywax 655 Baleco, melting point 102 ° C., average molecular weight 700, homopolymer of ethylene, hard aliphatic hydrocarbon ・ Pegazol 3040 Mobil Petroleum, distillation range 155
Aliphatic solvent having an aniline point of -197 ° C and an aniline point of 56 ° C

[0022]

Example and Comparative Example 1 After adding Hibiswako 103 to the ion-exchanged water and sufficiently stirring, the mixture was neutralized with 10% aqueous ammonia. Then, with stirring, Emaster 0001, Sylysia 350, SH
7036 and Cellosol D355 were added in this order to give a gel.

Embodiment 2 Hibiswako 104 is added to ion-exchanged water, and then Satinton W is added. After thoroughly stirring, 10
And neutralized with an aqueous solution of NaOH. Thereafter, while stirring, Polygen PE, J-642, SM7025, Silicon Star YO-50S, R2701, and Primal AC-22 were sequentially added to obtain a gel.

Embodiment 3 After adding Carbopol 940 to the ion-exchanged water and sufficiently stirring, the mixture was neutralized with a 10% aqueous solution of triethanolamine. Then, with stirring, J-643, Sylysia 25
0, BY22-820 and A-614 were added in this order to obtain a gel.

Embodiment 4 Carbopol 940 and Carbopol E in ion exchange water
After adding Z-1 and B703 and sufficiently stirring, the mixture was neutralized with a 10% aqueous morpholine solution. Then, while stirring, Emaster 0164, Silcast E, Silicon Star YO-
50S and Dickguard F-90N were added in this order to obtain a gel.

Embodiment 5 Hibiswako 104 and Junron P in ion exchange water
After adding W-110 and sufficiently stirring, the mixture was neutralized with a 10% aqueous ammonia solution. Then, with stirring,
136, J-642, Sylysia 350, Silicon Star YO-50S, SM7025, and KM-9717 were sequentially added to obtain a gel.

Comparative Example 1 Hibiswako 103 was added to ion-exchanged water, sufficiently stirred, and then neutralized with a 10% aqueous ammonia solution. Thereafter, with stirring, J-642, Cycilia 250, Silicon Star YO-50S, and Cellozol D355 were added in this order. A liquid substance was obtained instead of a gel-like substance.

Comparative Example 2 Hibiswako 104 and Carbopol 940 were added to ion-exchanged water, sufficiently stirred, and then neutralized with a 10% aqueous morpholine solution. Then, with stirring, J-643, Emaster 0001, B703, Satinton W, SH703
6, Silcast E and Primal AC-22 were sequentially added to obtain a gel.

Comparative Example 3 After adding Carbopol EZ-1 to the ion-exchanged water and sufficiently stirring, the mixture was neutralized with a 10% aqueous solution of triethanolamine. Thereafter, while stirring, Emaster 0164, Sylysia 350, BY22-820, SM7025, and Dickguard F-90N were added in this order to obtain a gel.

Comparative Example 4 Hibiswako 104, Junron PW for ion exchange water
After adding −110 and Sylysia 250 and stirring sufficiently,
Neutralized with 10% aqueous NaOH. Then, with stirring, Polygen PE, Silicon Star YO-50S, KM
-9717 was added in order to give a gel.

Comparative Example 5 Hoechst wax S and polywax 655 are added to pegazol 3040 and heated to about 95 ° C. to dissolve. This is dissolved in glycerin and morpholine and poured into water heated to about 82 ° C. with stirring to emulsify. After that, Satinton W is dispersed and allowed to stand at room temperature to obtain a soft paste.

Test Method The roof of a 1993 Toyota Carina, dark blueish gray metallic painted car is used for testing.
First, the car is washed, and then a cleaner wax is applied to remove dirt, and the remaining wax coating component is removed with an aliphatic solvent to prepare a test surface. This test surface is divided into 11 sections, and each sample is applied to each section. Only one section is left uncoated for a blank test. First, an appropriate amount of the sample is taken on a towel and applied to one test section. However, in Comparative Example 5, only an appropriate amount of the sample was collected on a urethane sponge, spread over one test section, air-dried for about 15 minutes, and then polished with a clean cotton towel to form a wax film.

The test vehicle is parked outdoors and travels on a road for about 100 km on a weekly basis. One for this unit
Wash with water at the rate of times. The following test items are tested according to the test procedure. The test period lasts for three months.

The workability and ease of use were shown as workability in terms of workability and ease of use during waxing. The criteria for the evaluation are as follows. Table 1 shows the results. ◎ Good feeling △ Good feeling × Bad feeling

[0035]

[Table 1]

After one month, two months and three months, the water repellency was maintained, and the state of the polka dots was visually determined. The evaluation criteria are as follows. Table 2 shows the results
Shown in

[0037]

[Table 2]

Gloss persistence effect The glossiness after one month, two months and three months was determined by visual comparison with the blank test. The evaluation criteria are as follows.
Table 3 shows the results.

[0039]

[Table 3]

[0040]

Since the present invention is a water-repellent polishing agent for a painted surface with the least amount of shape-retaining agent and no petroleum-based solvent, it can be used for drying during waxing and wiping off extra polishing components such as wax. Is not required, and has an effect that the feeling of use is good and an effect that the film is excellent in water repellency and gloss.

Claims (4)

[Claims] (1) Polyacrylic acid is used as a shape-retaining agent in an amount of 0.1 to 0.1%.
A water-repellent polishing agent for a gel-like painted surface, comprising 1 to 0.9% by weight and a polishing agent. 2. The water-repellent polishing agent for a gel-like coated surface according to claim 1, wherein the polishing agent contains waxes, silicone oils, fine powders and resins as active ingredients. 3. A wax comprising 0.1 to 5% by weight, a silicone oil comprising 0.2 to 6% by weight, a fine powder comprising 0.05 to 3% by weight, and a resin comprising 0.03 to 5% by weight. The water-repellent polishing agent for a gel-like painted surface according to claim 2, which is: 4. An aqueous solution of 0.5% by weight of polyacrylic acid in N
The water-repellent polishing agent for a gel-like coated surface according to any one of claims 1 to 3, wherein a polyacrylic acid having a viscosity of the aOH neutralized liquid of 8000 cps (25 ° C) or more is used.