JPH1192694A - Emulsion composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an emulsion composition excellent in an anti-polluting effect, capable of giving good abrasion resistance, weather resistance, water repellence and the like to the surfaces of substrates to protect their surfaces without deteriorating the beautiful appearances of the substrates. SOLUTION: This emulsion composition comprises (A) 100 pts.wt. of an alkoxy silane of the formula: R<1> n Si(OR<2> )4-n [R<1> is a monovalent hydrocarbon residue; R<2> is a 1-4C alkyl; (n) is 0-3] or its partial hydrolysate, (B) 50-200 pts.wt. of a branched polyorganosiloxane resin comprising R<3> 3 SiO1/2 units and SiO4/2 units (R<3> is a monovalent hydrocarbon) and having hydroxyl groups bound to Si atoms, (C) 5-50 pts.wt. of an alkyl-modified silicone oil, (D) 2-50 pts.wt. of a dimethylsilicone oil having a viscosity of 50-2,000,000 cp at 25 deg.C, (E) 1,000-20,000 pts. wt. of a hydrocarbon solvent and/or a volatile silicone, (F) 100-1,000 pts.wt. of a natural wax and/or a synthetic wax, (G) 1-600 pts.wt. of a surfactant and (H) 1,250-60,000 pts.wt. of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emulsion composition for protecting the surface of a substrate, and more particularly, to an emulsion composition having excellent storage stability and applicability. Forming a film, the formed film has an excellent antifouling effect on the base material surface, shields the base material surface from degraded parts and scratches caused by natural chemical and physical factors, abrasion resistance The present invention relates to a film-forming emulsion composition capable of imparting improved weather resistance, water repellency, and aesthetic appearance, and protecting the original aesthetic appearance of a base material in a beautiful state.

[0002]

[Technical background of the invention and its problems] The surface of buildings and painted surfaces of automobiles are subject to the effects of exhaust gas, acid rain, dust, etc.
There is a problem that the surface is deteriorated due to various chemical and physical influences such as salt damage and freezing damage, and the appearance is deteriorated. Therefore, various methods for preventing the deterioration of the aesthetic appearance of the building wall surface and the painted surface of the automobile and for repairing the deteriorated surface have been studied. As a method of repairing the surface of a building, for example, there is a method of removing dirt by cleaning the surface of a wall surface with a cleaning agent. However, in the method using a cleaning agent, even if dirt adhering to the wall surface can be removed, the surface appearance is not improved again because of the influence of the cleaning agent and the brush. To improve the aesthetic appearance after washing, it has been proposed to apply an aqueous emulsion solution or an organic solvent solution containing a wax component such as a hydrocarbon as a main component. There was a problem such as falling off of the film and peeling. In addition, a method is known in which a coating agent containing a silane compound or polysiloxane as a main component is applied to a porous inorganic material such as concrete to impart water repellency to prevent deterioration (Japanese Patent Application Laid-Open No. 57-157). No. 126878, JP-A-1-29
2089, JP-A-2-70787).
However, there is no description on how to repair the wall with reduced aesthetic appearance, or how to repair after applying the coating agent.
Further improvements were needed. In addition, as a water-repellent polishing agent used on painted surfaces of automobiles, generally, natural substances such as carnauba wax, montan wax, paraffin wax, micro wax, polyethylene wax, or synthetic waxes and silicone oils are dissolved or dispersed in a solvent. And a solid type obtained by emulsifying the above components with an emulsifier and water. The solvent type is excellent in water repellency but has poor workability such as wiping, and the emulsified type is excellent in workability, but has a disadvantage of poor water repellency. Further, these conventional waxes do not have sufficient gloss retention, water repellency retention, antifouling properties, and the like, and have a disadvantage that they are particularly poor in sustainability, and further improvement has been desired. Furthermore, surface treatment agents using an organic solvent as a solvent have problems of safety during handling and environmental hygiene. Therefore, an emulsion treatment agent using water as a dispersion medium is desired. However, since water was used as a solvent, there was a problem that phenomena such as cissing occurred when the composition was applied to a substrate, and further improvement was desired.

[0003]

The object of the present invention is to solve the above-mentioned problems, to provide an excellent antifouling effect, and to shield the surface of a base material from deterioration and abrasion caused by natural chemical and physical factors. , Abrasion resistance, gloss retention, weather resistance, water repellency, improvement in aesthetics, etc. can be imparted.Furthermore, there is little adhesion of dirt. It is an object of the present invention to provide an emulsion composition capable of protecting an aesthetic appearance in a beautiful state.

[0004]

The present inventors have conducted various studies to achieve the above object, and as a result, have found that a one-pack type emulsion composition comprising a specific siloxane component and a natural and / or synthetic wax in combination with water as a dispersion medium. Therefore, the formed film has an excellent antifouling effect, shields the surface of the base material from deterioration and abrasion caused by natural chemical and physical factors, abrasion resistance, gloss retention, weather resistance Improves water-repellency, water-repellency, and aesthetics, and furthermore, has less adhesion of dirt, and can be easily removed even if dirt adheres, forming a film that can protect the aesthetics of the original base material in a beautiful state. It has been found that an emulsion composition of the type can be provided, and the present invention has been accomplished. That is, the present invention provides: (A) a compound represented by the following general formula: R ¹ _n Si (OR ² ) _4-n (wherein R ¹ is a monovalent hydrocarbon residue optionally substituted with a halogen atom, and R ² is 1-4 alkyl groups, and
n is an integer of 0 to 2) 100 parts by weight of an alkoxysilane represented by the following formula (B): R ³ ₃ SiO _1/2 unit and SiO _4/2 unit (R ³ is a monovalent (Representing a hydrocarbon group), 50 to 200 parts by weight of a branched polyorganosiloxane resin having a hydroxyl group bonded to a silicon atom (C) 5 to 50 parts by weight of an alkyl-modified silicone oil (D) Viscosity at 25 ° C. of 50 to 200,000 cP 2 to 50 parts by weight of (E) one or more hydrocarbon-based solvents and / or volatile silicones and / or a mixture thereof 1000 to 20,000 parts by weight (F) 100 to 1000 parts by weight of natural and / or synthetic wax It is an emulsion composition containing (G) 1 to 600 parts by weight of a surfactant and (H) 1250 to 60,000 parts by weight of water.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The component (A) used in the emulsion composition of the present invention is an alkoxysilane represented by the general formula R ¹ _n Si (OR ² ) _4-n and / or a partial hydrolyzate thereof, It is a component for stably dispersing each component in the agent composition, improving the adhesion of the coating film to the substrate, and maintaining the durability. R ^{1 in the} component (A) is a monovalent hydrocarbon residue which may be substituted with a halogen atom, and may be the same or different. Examples of such a monovalent hydrocarbon residue that may be substituted with a halogen atom include carbon atoms such as methyl, ethyl, propyl, butyl, amyl, hexyl, octyl, decyl, and dodecyl. Numbers 1 to 12
An alkenyl group such as a vinyl group and an allyl group; an aryl group such as a phenyl group, a tolyl group and a xylyl group; a monovalent group such as an aralkyl group such as a β-phenylethyl group and a β-phenylpropyl group. And a partial hydrolyzate thereof. Of these, a methyl group, an ethyl group, and a propyl group are preferable because they are easily available. OR ^{2 in the} component (A) is an alkoxy group, and among them, R ² is an alkyl having 1 to 4 carbon atoms because of a low odor of by-products generated during the curing reaction and excellent curability and film properties. The group and n are preferably represented by an integer of 0 to 2, and particularly preferably a methoxy group and an ethoxy group. The partial hydrolyzate of alkoxysilane can be easily obtained by a known method. That is, methyl trialkoxy silane, dimethyl dialkoxy silane, tetraalkoxy silane, phenyl trialkoxy silane, diphenyl dialkoxy silane, alkoxy silanes such as methyl phenyl dialkoxy silane and the alkyl group of the alkyl alkoxy silane ethyl group, propyl group, butyl Alkyl group having 1 to 12 carbon atoms such as a group, amyl group, hexyl group, octyl group, decyl group and dodecyl group; alkenyl group such as a vinyl group and allyl group; aryl such as a tolyl group and a xylyl group One or a mixture thereof selected from organosilicon compounds substituted with a monovalent hydrocarbon group such as a group is appropriately selected and hydrolyzed or partially hydrolyzed in the presence of a catalyst. be able to. Examples of catalysts for synthesizing the above compounds include organic acids such as acetic anhydride, glacial acetic acid, propionic acid, benzoic acid, formic acid, acetic acid, and oxalic acid; titanates such as tetrabutoxytitanate and tetraisopropoxytitanate; Examples thereof include chlorosilanes such as trichlorosilane and dimethyldichlorosilane; inorganic bases such as aqueous ammonia; and organic bases such as ethylenediamine and triethanolamine. Further, as the component (A), the curable siloxanes having different properties obtained as described above may be used as a composite blend.

[0006] Used in the emulsion composition of the present invention
The component (B) consists of R ³ ₃ SiO _1/2 units and SiO _4/2 units (R ³
Represents a monovalent hydrocarbon group), a branched polyorganosiloxane resin having a hydroxyl group bonded to a silicon atom, wherein R ³ is an alkyl group such as methyl, ethyl, or propyl; An alkenyl group is exemplified, and a methyl group is preferred because of easy synthesis and availability. The ratio of R ³ ₃ SiO _1/2 unit to SiO _4/2 unit is SiO _4/2 unit 1
R ³ ₃ SiO _1/2 unit is 0.5 to 1.3 mol, preferably 0.7 to 1.2 mol, per mol. If the amount is less than 0.5 mol, the toughness of the film decreases, and if it exceeds 1.3 mol, a sticky feeling is generated, which adversely affects workability and the like. The amount of the silicone resin (B) is 50 to 200 parts by weight, preferably 70 to 120 parts by weight, per 100 parts by weight of the component (A). If the amount is less than 50 parts by weight, the strength of the film will be poor.If the amount is more than 200 parts by weight, the toughness of the film will be reduced, which will cause cracks and insufficient shielding properties. .

[0007] The component (C) used in the present invention is an alkyl-modified silicone oil, particularly having an average composition formula (1):
Alkyl-modified silicone oils represented by (2) and (3) are preferred.

[0008]

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(In the formula, X represents an alkyl group having 10 to 80 carbon atoms.) These alkyl-modified silicone oils have a double bond to polymethylhydrogensiloxane or polymethylhydrogendimethylsiloxane copolymer. It is obtained by adding a hydrocarbon having at least one hydrocarbon. These can be synthesized by adding an α-olefin to polymethylhydrogensiloxane or polymethylhydrogendimethylsilicone copolymer by an addition reaction using a platinum catalyst. This component is a component for improving the durability of the emulsion composition after forming the film and imparting toughness to the film. The compounding amount of the alkyl-modified silicone of the component (C) is preferably 5 to 50 parts by weight, particularly preferably 7 to 20 parts by weight, per 100 parts by weight of the component (A). If the amount is less than 5 parts by weight, the durability of the film is disadvantageously deteriorated,
If it exceeds 50 parts by weight, the film becomes cloudy and a clear surface is not formed, which is not preferable.

[0010] Used in the emulsion composition of the present invention
The component (D) is a dimethyl silicone oil having a viscosity at 25 ° C. of 50 to 200,000 cP, and is a component for improving workability in the present composition. When the viscosity is 50 cP or less, interference fringes occur when a film is formed, which is not preferable.
When the viscosity exceeds 00 cP, smooth application does not occur during the application of the emulsion, which causes a problem in workability. The dimethyl silicone oil of the component (D) is preferably 2 to 50 parts by weight, particularly preferably 8 to 20 parts by weight, per 100 parts by weight of the component (A). If the amount is less than 2 parts by weight, the slipperiness decreases, and the workability deteriorates. On the other hand, if it exceeds 50 parts by weight, interference fringes occur when a film is formed, which is not preferable.

The component (E) used in the present invention is a hydrocarbon solvent and / or volatile silicone,
Examples of the volatile silicone include those represented by the following general formula (I) or (II).

[0012]

Embedded image

In the volatile polydimethylsiloxane as described above, s having a terminal capped with a trimethylsilyl group is 0 to 0.
A linear polydimethylsiloxane of 9 or a cyclic polydimethylsiloxane of t 3 to 8;
Either a linear or cyclic polydimethylsiloxane or a mixture thereof is used in consideration of the solubility of the component and the catalyst component. Among them, it is preferable to use a linear polydimethylsiloxane in which s is 2 to 7 or a cyclic polydimethylsiloxane in which t is 4 or 5. Here, "volatile" means having a vapor pressure that can be measured at room temperature, and the component (E) preferably has a boiling point of 99 to 260 ° C. In addition, each component is dissolved as a hydrocarbon solvent,
There is no particular limitation as long as it can be dispersed, n-hexane,
Mineral terpen, rubber volatile oil, mineral spirit,
Kerosene, IP solvent and the like can be exemplified. (E)
The amount of the component is 1000 to 20 parts per 100 parts by weight of the component (A).
000 parts by weight, preferably 5,000 to 15,000 parts by weight. If the amount is less than 1000 parts by weight, the smoothness of the film surface becomes insufficient. If the amount is more than 20,000 parts by weight, it becomes difficult to form a film having characteristics such as sufficient gloss and shielding property.

The component (F) used in the present invention is a natural and / or synthetic wax, and is an essential component for imparting gloss to the present emulsion composition. Specifically, for example, vegetable waxes such as carnauba wax, wood wax, ouriculi wax, and espar wax; animal waxes such as beeswax, insect wax, shellac wax and spermaceti; paraffin wax, microcrystal wax, polyethylene wax, ester wax and Petroleum waxes such as oxidized wax; and mineral waxes such as montan wax, ozokerite and ceresin. These may be used alone or as a mixture of two or more.
Among these, carnauba wax is preferred because of its excellent gloss imparting property and its easy availability.
The amount of component (F) used is 100 parts by weight per 100 parts by weight of component (A).
To 1000 parts by weight, more preferably 150 to 750 parts by weight. If the amount is less than 100 parts by weight, the film is
If the amount is more than 10 parts by weight, the composition will be thickened, causing a problem in workability, and it will be difficult to emulsify.

The surfactant of component (G) used in the present invention includes component (A), component (B), component (C), component (D) and component (E).
There is no particular limitation so long as it forms an emulsion composition by emulsifying and mixing the water of component (F) and component (H), and may be any of nonionic, cationic, anionic, and a mixture thereof. Examples of the nonionic surfactant include polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether, sorbitan fatty acid ester, and polyoxyethylene sorbitan fatty acid ester. Examples of the cationic surfactant include alkyltrimethylammonium salts such as hexadecyltrimethylammonium chloride and octadecyltrimethylammonium chloride; and dialkyldimethyl salts such as didodecyldimethylammonium chloride, dihexadecyldimethylammonium chloride and dioctadecyldimethylammonium chloride. Ammonium salt;
Hexadecyldimethylbenzylammonium chloride,
Examples include benzylammonium salts such as octadecyldimethylbenzylammonium chloride. Examples of the anionic surfactant include alkyl sulfate, alkyl phosphate, and sodium polyoxyethylene alkyl phenyl ether sulfate. The surfactant of the component (G) is used in an amount of 1 to 6000 parts by weight based on 100 parts by weight of the component (A). More specifically, the ingredients
When preparing an emulsion composition by mixing (A) to (H), 1 to 250 parts by weight, preferably 2 to 200 parts by weight, of component (G) is used as an emulsifier. By blending the surfactant of the component (G) as a leveling agent with this composition, the smoothness upon application to a substrate is improved. When component (G) is used as a leveling agent in this manner, it is used in an amount of 350 parts by weight or less, preferably 10 to 300 parts by weight, based on 100 parts by weight of component (A). Thus, the components
When the surfactant (G) is blended, first use 1 to 250 parts by weight as an emulsifier, and then temporarily mix it with other components to prepare an emulsion composition, and further, as a leveling agent, 350 parts by weight or less. By blending the amount of
A stable and uniform emulsion is obtained, and its leveling property is also good.

The water of the component (H) used in the present invention is
(A) 1250 to 60,000 parts by weight per 100 parts by weight.

Various additives may be added to the emulsion composition of the present invention, if necessary. The amount of the additives is not particularly limited as long as the object of the present invention is not impaired. Examples of the additive include an ultraviolet absorber, an antibacterial agent, and an antioxidant. Further, the emulsion composition of the present invention may contain an inorganic or organic fine powder generally used for a polishing agent. Examples of these fine powders include kaolin, talc, perlite, calcium carbonate, zeolite, alumina, aluminum hydroxide, titanium oxide, silicone resin powder,
Synthetic spherical silica powders and similar natural or synthetic inorganic or organic powders can be mentioned. These powders may be used alone or in combination of two or more.

Various catalyst components may be added to the emulsion composition of the present invention, if necessary. The amount of the catalyst component is not particularly limited as long as the object of the present invention is not impaired. As the catalyst component, those known as curing catalysts for polyorganosiloxane can be used. Specific examples include tin dioctylate, dibutyltin dilaurate, dibutyltin dioctoate, organic tin compounds such as dioctyltin dilaurate; and organosilicone quaternary ammonium salts. Among these, curability and liquid stability are exemplified. From the viewpoint, dibutyltin dilaurate and dioctyltin laurate are particularly preferred.

The emulsion composition of the present invention comprises glass,
Abrasion shielding agent for plastic, glossy outer wall materials, etc.
Water-repellent treatment agent for cement-based structural materials, etc., water-repellent treatment agent for molded products such as rubber, leather, glass, plastic, wood, etc., glazing agent, protective agent, acrylic paint, urethane paint, polyester paint, vinyl chloride Various base materials coated with paint, acrylic melamine paint, alkyd melamine paint, etc., for example, materials for automobiles, electric products, building materials such as metals and plastics, and water repellents and polishes for painted surfaces such as furniture It is used as an agent and a protective agent. The emulsion composition of the present invention can be applied to these substrates by a method such as brush application, spray application, roller application, and float application.

[0020]

The emulsion composition of the present invention is applied to various substrates, and is heated at room temperature or for a short time at a low temperature.
Easy to form a film, the formed film shows excellent antifouling effect on various substrate surfaces, and shields the substrate surface from degraded and abraded parts caused by natural chemical and physical factors, It can impart abrasion, weather resistance, water repellency, water resistance, and improvement in aesthetic appearance, etc., and exhibits characteristics capable of protecting the original aesthetic appearance of a base material in a beautiful state. In addition, because it is an emulsion type using water as a dispersant, there are few problems with safety and environmental hygiene due to organic solvents, and even though it is an emulsion, it has excellent storage stability. And exhibit good coating properties without repelling.

[0021]

The present invention will be described below with reference to examples. Unless otherwise specified, parts in Examples are parts by weight,
% Indicates% by weight, and viscosity indicates a value at 25 ° C. Synthesis Example 1 Methyltrimethoxysilane 1360 was placed in a flask equipped with a stirrer, heating jacket, reflux condenser and dropping funnel.
g (10 mol), 200 g of methanol and methyltrichlorosilane were charged so that the hydrochloric acid content became 50 ppm, and 171 g (0.95 mol) of water was gradually dropped using a dropping funnel while stirring. The mixture was kept at a reflux temperature (about 68 to 72 ° C.) for 4 hours to carry out hydrolysis and condensation reactions. After distilling off volatiles under the conditions of normal pressure and 100 ° C, the pressure was gradually reduced to 40 mmHg, 1
Volatile components are further distilled off under reduced pressure at 50 ° C to give a viscosity of 20 cP
630 g of silicone (A-1) was obtained.

Synthesis Example 2 Methyltriethoxysilane was added to a flask equipped with a stirrer, a heating jacket, a reflux condenser, and a dropping funnel.
0.2g (0.9mol), dimethyldimethoxysilane 12g (0.1mo
l), 200 g of methanol and 5 g of acetic acid were charged, and 171 g (0.95 mol) of water was gradually dropped using a dropping funnel while stirring. The mixture was kept at a reflux temperature (about 68 to 72 ° C.) for 4 hours to carry out hydrolysis and condensation reactions. After evaporating the volatile components under normal pressure and 100 ° C, gradually reduce the pressure to 40mm
The volatile components were further distilled off under reduced pressure under the conditions of Hg and 150 ° C. to obtain 630 g of silicone (A-2) having a viscosity of 20 cP (630 g).

In the examples, the following were used as the branched polyorganosiloxane resin of the component (B). SiO _4/2
(B-1) Hydroxyl-containing branched polyorganosiloxane resin composed of both units in a constitutional ratio of 0.7 mol of (CH ₃ ) ₃ SiO _1/2 unit to 1 mol of unit (B-1) In the examples, alkyl modification of component (C) The following silicone oils were used.

[0024]

Embedded image

In the examples, the following dimethyl silicone oil was used as the component (D). D-1 Dimethyl silicone oil having a viscosity of 100 cP at 25 ° C. D-2 Dimethyl silicone oil having a viscosity of 100,000 cP at 25 ° C. Preparation Example 1 Synthesis Example 1 in a flask equipped with a stirrer, a heating jacket, a reflux condenser, and a dropping funnel (A-1): 10 parts by weight, branched polyorganosiloxane resin having a hydroxyl group (B-1): 5 parts by weight, alkyl-modified silicone oil (C-1): 1 part by weight, dimethyl Silicone oil (D-1): 0.5 part by weight, hydrocarbon solvent (IP solvent 1620): 800 parts by weight, carnauba wax: 15 parts by weight, polyoxyethylene nonylphenyl ether: 0.5 parts by weight, 75 to 80 ° C , And it was confirmed that each component was uniformly dissolved and dispersed. Thereafter, stirring was performed at 6000 rpm using a homomixer, and 1200 parts by weight of water was gradually added thereto from a dropping funnel, followed by stirring at 50 to 60 ° C. for 30 minutes to obtain an emulsion composition (S-1). Obtained.

Preparation Example 2 Into a flask equipped with a stirrer, a heating jacket, a reflux condenser and a dropping funnel, were charged the respective components having the amounts shown in Table 1, and the same operation as in Preparation Example 1 was carried out. (S-2 to 5) were obtained.

[0027]

[Table 1]

* 1: Nonylphenyl surfactant (Nikkor OP-5, manufactured by Nikko Chemicals Co., Ltd.) * 2: Nonylphenyl surfactant (Nikkor OP-18 TX, manufactured by Nikko Chemicals Co., Ltd.) * 3 : Sorbitan ester surfactant (Likemar A, manufactured by Riken Vitamin Co., Ltd.) Preparation Example 3 An emulsion composition (P-1) was obtained in the same manner as in Preparation Example 1, except that the silicone resin A-1 was not used. Preparation Example 4 An emulsion composition (P-2) was obtained in the same manner as in Preparation Example 1, except that the silicone resin B-1 was not used. Preparation Example 5 An emulsion composition (P-3) was obtained in the same manner as in Preparation Example 1, except that the alkyl-modified silicone oil C-1 was not used. Preparation Example 6 Preparation Example 1 without using dimethyl silicone oil D-1
In the same manner as in the above, an emulsion composition (P-4) was obtained. Preparation Example 7 An emulsion composition (P-5) was obtained in the same manner as in Preparation Example 1, without using one kind of the hydrocarbon solvent and / or the volatile silicone and / or a mixture thereof.

Examples 1 to 5 and Comparative Examples 1 to 5 As shown in Table 2, the above emulsion compositions S-1 to S-5
Using P-1 to P-5, the shielding properties, weather resistance, water resistance, aesthetic appearance, antifouling properties and stability were evaluated by the following methods. Examples 6 to 10 and Comparative Examples 6 to 10 Emulsion compositions were prepared with the composition shown in Table 3, and the shielding properties, weather resistance, water resistance, aesthetic appearance, antifouling properties and stability were evaluated by the following methods. [Preparation of Specimen] Specimen 1 A white tile having a size of 15 × 15 cm was lightly rubbed with sandpaper to make a scratch. The emulsion composition was applied thereto using a sponge, and air-dried for one day to form a film. Test piece 2 A substrate (Nippon Test Panel Kogyo Co., Ltd.) on which an aminoalkyd resin was painted and baked was lightly rubbed with sandpaper to make a scratch. The emulsion composition was applied thereto using a spray, wiped off with a dry waste, and air-dried for one day to form a film. [Shielding Property] The appearance of the test piece was visually observed and evaluated according to the following four grades. ：: The abrasion portion is well shielded, and the transparency of the film is good. ：: A part of the abrasion part is exposed, but the transparency of the film is good. Δ: Part of the abrasion was exposed, and the transparency of the film was slightly poor. ×: Insufficient shielding effect and no transparency of the film. [Weather resistance] 500 using sunshine weatherometer
After exposure for a period of time, the appearance was visually observed and evaluated according to the following four grades. ：: The abrasion portion is well shielded, and the transparency of the film is good. ：: A part of the abrasion part is exposed, but the transparency of the film is good. Δ: Part of the abrasion was exposed, and the transparency of the film was slightly poor. ×: Insufficient shielding effect and no transparency of the film. [Water resistance] After running tap water on the test piece for 24 hours, the appearance was visually observed and evaluated according to the following four grades. ：: The abrasion portion is well shielded, and the transparency of the film is good. ：: A part of the abrasion part is exposed, but the transparency of the film is good. Δ: Part of the abrasion was exposed, and the transparency of the film was slightly poor. ×: Insufficient shielding effect and no transparency of the film. [Aesthetics] After the test piece was allowed to stand for 5 months at 25 ° C. and a relative humidity of 60%, the appearance was visually observed and evaluated according to the following four grades. A: The transparency of the film is good, and dust can be removed by simple wiping. ：: The transparency of the film was good, but some dust adhesion was observed. Δ: Transparency of the film was slightly poor, and some dust adhesion was observed. X: The transparency of the film was poor and dust adhered. [Antifouling property] Sesame oil as a contaminant was applied to a test piece with a brush, and the easiness of wiping off with a cloth after leaving for 1 hour was evaluated on the following four scales. ：: No contaminants remained, and wiping was good. ：: No contaminant remains, but some stain remains. Δ: The surface contaminated material can be removed, but contaminants remain in the details of the scratch. ×: Contaminants remain throughout. [Stability of emulsion composition]
The solution was weighed into a 100 g glass bottle and left for one month in a constant temperature layer at 60 ° C., and the state of the liquid was evaluated according to the following three grades. A: No liquid separation. ：: Separation of the liquid was partially observed, but it became uniform with light stirring. ×: There is separation of the liquid, and the liquid is not uniform even when stirring is performed.

[0030]

[Table 2]

[0031]

[Table 3]

* 1: Nonylphenyl surfactant (Nikkor OP-5, manufactured by Nikko Chemicals Co., Ltd.) * 2: Nonylphenyl surfactant (Nikkor OP-18 TX, manufactured by Nikko Chemicals Co., Ltd.) * 3 : Sorbitan ester surfactant (Riquemar A, manufactured by Riken Vitamin Co., Ltd.)

Claims (2)

[Claims] (A) a compound represented by the following general formula: R ¹ _n Si (OR ² ) _{4 -n} (wherein R ¹ is a monovalent hydrocarbon residue which may be substituted with a halogen atom, and R ² has 1 carbon atom) 4 to 4 alkyl groups, and
n is an integer of 0 to 2) 100 parts by weight of an alkoxysilane represented by the following formula (B): R ³ ₃ SiO _1/2 unit and SiO _4/2 unit (R ³ is a monovalent (Representing a hydrocarbon group), 50 to 200 parts by weight of a branched polyorganosiloxane resin having a hydroxyl group bonded to a silicon atom (C) 5 to 50 parts by weight of an alkyl-modified silicone oil (D) Viscosity at 25 ° C. of 50 to 200,000 cP 2 to 50 parts by weight of (E) one or more hydrocarbon-based solvents and / or volatile silicones and / or a mixture thereof 1000 to 20,000 parts by weight (F) 100 to 1000 parts by weight of natural and / or synthetic wax An emulsion composition comprising (G) 1 to 600 parts by weight of a surfactant and (H) 1250 to 60,000 parts by weight of water. 2. The emulsion composition according to claim 1, wherein the alkyl-modified silicone oil is one or more of those represented by the average composition formulas (1), (2) and (3). Embedded image (In the formula, X represents an alkyl group having 10 to 80 carbon atoms.)