KR20200077013A - Composition for removing oil film of vehicle glass - Google Patents

Abstract

The present invention relates to an oil film remover composition for vehicle glass. More specifically, a lubricant containing polyalkylene glycol and a lubricant auxiliary containing a mixture of glycol-based compounds and polymer beads in an abrasive is mixed at an optimal content ratio to produce the oil film remover composition. Thus, excellent lubricity and low evaporation improve oil film removal performance while improving the workability of removing oil films such as contaminated films and water repellent films formed on a surface of vehicle glass.

Description

Oil film remover composition for automobile glass{COMPOSITION FOR REMOVING OIL FILM OF VEHICLE GLASS}

The present invention relates to an oil film remover composition for automobile glass with improved oil film removal performance while improving the efficiency of oil film removal such as a contaminant film and a water repellent film formed on a glass surface of an automobile with excellent lubricity and low evaporation.

The existing oil film remover for automobile glass mainly uses only abrasives such as cerium oxide and a thickener for viscosity control in a water solvent, so the lubrication is not sufficient, so it took a lot of effort and effort to remove the oil film. In addition, the evaporation rate of the oil removing agent is high, so it is easily dried during the removal of the oil film of a wide glass such as a windshield of a car, and there is a problem that the continuous work is difficult. In particular, this phenomenon is more pronounced in the summer when the temperature is high.

In recent years, in order to dramatically improve the driver's field of view, it is also treated with a water-repellent coating agent that can form very strong water-repellent coatings, such as silicone-based and fluorine-based, on automobile glass surfaces. In particular, in the case of a water-repellent coating obtained by treating the glass surface with a silicone-based or fluorine-based water-repellent coating agent, the glass surface is very firmly and strongly adhered to the glass surface as compared to other oil films or contaminated films.

However, the water-repellent film used for a certain period of time is formed of a very strong non-uniform film on the glass surface, and when driving at night on a rainy day, a diffuse reflection caused by light may occur, which may temporarily impede the driving field of view.

In addition, the peculiar water repellency does not properly form a water film that acts as a lubricator on the glass surface, so the overall friction coefficient is high when the wiper blade is operated. The high coefficient of friction causes rapid wear of the rubber, which can result in deterioration of the wiping performance of the glass surface and noise. In addition, by causing a partial difference in the friction coefficient, a shaking phenomenon due to a stick-slip phenomenon of the wiper blade may occur.

In order to remove oily films, stains, and water-repellent coatings strongly adhered to the glass surface of such a vehicle, there is a problem in that it is very difficult to remove them with a general glass cleaner mainly containing a surfactant. Accordingly, in order to remove the adhered oil film and strong water-repellent film, oil-removing agents based on an abrasive have been used.

Japanese Unexamined Patent Publication No. 2000-290692 discloses an oil removal agent using rare earth oxide and cerium hydroxide as abrasives as main components and using water and a thickener. However, the oil removing agent is easy to remove contaminant films such as relatively weak oil films and stains, but there is a problem that it takes a long time to remove very strong and strong water repellent coating films such as silicone and fluorine water repellents.

In addition, in order to remove the oil film and the water-repellent film strongly adhered to the glass surface, several repetitive operations are required due to the characteristics of the oil film removal operation. However, the existing oil film removing agent was quick to dry, so it was difficult to continuously repeat the oil film removal, so that satisfactory oil film removal performance was not obtained.

Japanese Patent Publication No. 2000-290692

In order to solve the above problems, an object of the present invention is to improve the lubricity and low evaporation, and at the same time to improve the film removal efficiency, a lubricant containing a polyalkylene glycol and a lubricant auxiliary comprising a mixture of a glycol-based compound and a polymer bead. It is to provide a film removal agent composition for automobile glass, including.

The object of the present invention is not limited to the object mentioned above. The object of the present invention will be more apparent from the following description, and will be realized by means described in the claims and combinations thereof.

The present invention may include the following configuration to achieve the above object.

The present invention is an abrasive 23 to 59% by weight; 10 to 35% by weight of a lubricant containing polyalkylene glycol; 3-20% by weight of a lubricant aid comprising a mixture of a glycol-based compound and a polymer bead; 0.1 to 5% by weight of surfactant; 0.1 to 5% by weight of a thickener; And 15 to 45% by weight of a solvent; provides a film remover composition for automobile glass containing.

The abrasive is selected from the group consisting of calcium carbonate, magnesium oxide, calcium phosphate, silica, titanium oxide, zirconium oxide, zirconium silicate, iron oxide, cerium oxide, cerium hydroxide, aluminum oxide, silicon carbide, boron carbide, titanium carbide and diamond. It may be more than a species.

The polyalkylene glycol may be selected from the group consisting of polyethylene glycol, polypropylene glycol, ethylene oxide propylene oxide block copolymer, ethylene oxide propylene oxide random copolymer, or combinations thereof.

The ethylene oxide propylene oxide random copolymer may be 40 to 60% by weight of ethylene oxide and 40 to 60% by weight of propylene oxide randomly copolymerized.

The ethylene oxide propylene oxide random copolymer may have a weight average molecular weight (Mw) of 500 to 3400 g/mol, a flash point of 160 to 258°C, and a kinematic viscosity at 40°C of 20 to 220 mm ² /s.

The lubricating aid may be a mixture of glycol-based compounds and polymer beads in a weight ratio of 1: 1/3 to 2.

The polymer beads are selected from the group consisting of silicone beads, polymethylmethacrylate beads, nylon beads, polyphenylene sulfide beads, polyethersulfone beads, polyamideimide beads, epoxy beads, polyester elastomer beads and polyurethane beads. It may be more than a species.

The polyurethane beads may have a glass transition temperature of -52 to 35°C and an average particle size of 0.1 to 15 μm.

The surfactant may be one or more selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene fatty acid ester and polyoxyethylene sorbitan fatty acid ester.

The thickener is selected from the group consisting of sodium polyacrylate, carboxyl methyl cellulose, hydroxy ethyl cellulose, hydroxy propyl methyl cellulose, polyacrylamide, polystyrene sulfonate, bentonite, laponite, montmorillonite, saponite and hectorite. It may be more than a species.

Since the present invention includes the above configuration, it has the following effects.

The oil film remover composition for automobile glass of the present invention can improve the efficiency of the continuous oil film removal operation with excellent lubricity and low evaporation by applying polyalkylene glycol as a lubricant and a mixture of a glycol-based compound and a polymer bead as a lubricant auxiliary. have.

In addition, the oil film remover composition for automobile glass of the present invention is a mixture of abrasives, surfactants, and thickeners with lubricants and lubricant aids of a specific component in an optimal content ratio to remove various contaminants and water repellent films formed on the glass surfaces of automobiles. Improve it.

The effects of the present invention are not limited to the effects mentioned above. It should be understood that the effects of the present invention include all effects that can be deduced from the following description.

The above objects, other objects, features and advantages of the present invention will be readily understood through the following preferred embodiments associated with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed contents are thorough and complete and that the spirit of the present invention is sufficiently conveyed to those skilled in the art.

In describing each drawing, similar reference numerals are used for similar components. In the accompanying drawings, the dimensions of the structures are shown to be enlarged than actual for clarity of the invention. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this specification, terms such as “include” or “have” are intended to indicate that a feature, number, step, operation, component, part, or combination thereof described on the specification exists, and that one or more other features are present. It should be understood that the existence or addition possibilities of fields or numbers, steps, actions, components, parts or combinations thereof are not excluded in advance. In addition, when a part such as a layer, film, region, plate, etc. is said to be "on" another part, this includes not only the case where the other part is "directly above" but also another part in the middle. Conversely, when a portion of a layer, film, region, plate, or the like is said to be “under” another portion, this includes not only the case “underneath” another portion, but also another portion in the middle.

Unless otherwise specified, all numbers, values, and/or expressions expressing the amounts of ingredients, reaction conditions, polymer compositions and blends used herein are those numbers that occur in obtaining these values, among other things. As these are approximations that reflect the various uncertainties of the measurement, it should be understood that in all cases they are modified by the term "about". In addition, when numerical ranges are disclosed in this description, these ranges are continuous, and include all values from the minimum value in this range to the maximum value including the maximum value, unless otherwise indicated. Further, when such a range refers to an integer, all integers including the minimum value to the maximum value including the maximum value are included unless otherwise indicated.

In the present specification, when a range is described for a variable, it will be understood that the variable includes all values within the stated range including the described endpoints of the range. For example, a range of “5 to 10” includes values of 5, 6, 7, 8, 9, and 10, as well as any subrange of 6 to 10, 7 to 10, 6 to 9, 7 to 9, and the like. It will be understood to include, and include any value between integers pertinent to the stated range of ranges such as 5.5, 6.5, 7.5, 5.5 to 8.5 and 6.5 to 9, and the like. Also, for example, the range of “10% to 30%” is 10% to 15%, 12% to 10%, 11%, 12%, 13%, etc., and all integers including up to 30%. It will be understood that it includes any subranges such as 18%, 20% to 30%, etc., and also includes any value between valid integers within the scope of the stated range, such as 10.5%, 15.5%, 25.5%, and the like.

The present invention relates to an oil film remover composition for automobile glass, in particular, by applying a lubricant comprising a mixture of a polyalkylene glycol and a glycol-based compound and a polymer bead, a lubricant and oil removal performance are improved. . The oil film remover composition for automobile glass of the present invention may have a kinematic viscosity at 20°C of 1500 to 2200 mPas.

Specifically, the oil film remover composition for automobile glass according to the present invention includes 23 to 59% by weight of an abrasive; 10 to 35% by weight of a lubricant containing polyalkylene glycol; 3-20% by weight of a lubricant aid comprising a mixture of a glycol-based compound and a polymer bead; 0.1 to 5% by weight of surfactant; 0.1 to 5% by weight of a thickener; And 15 to 45% by weight of a solvent.

Hereinafter, each component will be described in detail.

(1) abrasive

The abrasive may be included in order to effectively remove the oil film and the stain and water-repellent film strongly adhered to the glass surface. The abrasive has high abrasive power and is excellent in removing strong oil and water repellent films formed on the glass surface.

In general, abrasives can be classified into Mohs Hardness as the strength of abrasive strength, and are classified into values ranging from Mohs hardness 1 with low abrasive strength to 10 with the highest abrasive strength. Given that the glass has a Mohs hardness of about 5.5 to 6.5 in the range of scratches or scratches on the glass surface, it is preferable to use abrasives having a Mohs hardness of less than 5.5. However, in order to effectively remove the strongly adhered oil film, stains, and strong water repellent film, it is preferable to use abrasives having a very fine average particle size that does not cause scratches or scratches on the glass surface while having a high Mohs hardness value.

Specifically, the abrasive is in the group consisting of calcium carbonate, magnesium oxide, calcium phosphate, silica, titanium oxide, zirconium oxide, zirconium silicate, iron oxide, cerium oxide, cerium hydroxide, aluminum oxide, silicon carbide, boron carbide, titanium carbide and diamond It may be one or more selected. Preferably, at least one selected from the group consisting of cerium oxide, aluminum oxide and silicon carbide may be used as the abrasive.

The cerium oxide has excellent characteristics of adsorption reaction with a contaminant film formed on a glass surface, because electron transfer (oxidation-reduction) by oxygen at room temperature occurs well. In addition, the cerium oxide has an advantage that the likelihood of scratching on the glass surface is low because the Mohs hardness is about 6 or so.

The aluminum oxide has a Mohs hardness of about 9, and the silicon carbide has a Mohs hardness of about 9 to 10, which is higher than that of the cerium oxide. The aluminum oxide and silicon carbide have an effect of improving oil film removal performance, lubricity and wettability. However, these components may cause scratches or scratches on the glass surface due to the high Mohs hardness, so it is preferable to mix and use the cerium oxide with at least one of aluminum oxide and silicon carbide. More preferably, it is preferable to use a mixture of cerium oxide, aluminum oxide and silicon carbide as the abrasive.

The abrasive may have an average particle size of 0.1 to 15 μm. If the average particle size of the abrasive is less than 0.1 µm, the oil film removal performance falls sharply. On the contrary, when the average particle size is more than 15 µm, the oil film removal performance is excellent, but scratches or scratches may occur on the glass surface. More preferably, it may be in the range of 0.5 to 6 μm.

The abrasive may be used 23 to 59% by weight based on the oil film remover composition. At this time, if the content is less than 23% by weight, the oil film removal performance may be deteriorated. Conversely, if it is more than 59% by weight, lubricity and wettability may be reduced due to high viscosity, and manufacturing cost may increase. Preferably, the abrasive may use 30 to 52.5% by weight.

(2) lubricant

The lubricant has a water-soluble property, it can be used a polyalkylene glycol excellent lubricity and low evaporation. The polyalkylene glycol may be selected from the group consisting of polyethylene glycol, polypropylene glycol, ethylene oxide propylene oxide block copolymer, ethylene oxide propylene oxide random copolymer, or combinations thereof. Preferably, an ethylene oxide propylene oxide random copolymer having a wide viscosity range, excellent water-soluble properties, and excellent lubricity can be used.

The ethylene oxide propylene oxide random copolymer may be 40 to 60% by weight of ethylene oxide and 40 to 60% by weight of propylene oxide randomly copolymerized.

The ethylene oxide propylene oxide random copolymer may have a weight average molecular weight (Mw) of 500 to 3400 g/mol, a flash point of 160 to 258°C, and a kinematic viscosity at 40°C of 20 to 220 mm ² /s. Preferably, the weight average molecular weight is 500 ~ 1900 g / mol, the flash point is 160 ~ 240 ℃, may have a kinematic viscosity in the range of 20 ~ 220 ㎟ / s at 40 ℃. In particular, if the kinematic viscosity at 40 °C is less than 20 mm ² /s, the composition may flow and contaminate other sites. On the contrary, if it exceeds 220 mm ² /s, the rate of evaporation of the oil removing agent with high viscosity may be slowed down, but there is a problem in that the oil removing performance and lubricity are deteriorated.

The range of such kinematic viscosity, molecular weight, and flash point is set for the following reasons. In order to effectively remove the oil film, stains, and strong water-repellent film strongly adhered to the surface of the automobile glass, continuous polishing operations such as overlapping and repetitive operations are required, and even when abrasives with high abrasive power are used, such repetitive and repetitive operations are essential.

Accordingly, in order to perform continuous operations such as the above-described overlapping and repetitive work, the better the lubricity and the low evaporation of the oil film remover, the better, but if the lubricity is too good or the evaporation is too slow, it may interfere with the oil film removal work or flow down to other parts. Too much lubricity and low evaporation is undesirable because there is a concern that it may cause contamination.

In addition, a low kinematic viscosity is advantageous for lubricity under a light load atmosphere such as an oil film removal operation, but on the contrary, it is preferable to use within the above range since low evaporation is advantageous for a high kinematic viscosity, a flash point, and a high molecular weight.

The lubricant may be used in an amount of 10 to 35% by weight based on the oil film removing agent composition. At this time, if the content is less than 10% by weight, it is easily dried, and the oil removal performance and lubricity may be deteriorated, and the oil removal agent is rapidly evaporated, thereby making it difficult to continuously perform the repetitive work. Conversely, if it exceeds 35% by weight, the evaporation property becomes too late and the oil film removal performance may deteriorate.

(3) Lubricating aid

The lubricating aid may include a mixture of a glycol-based compound and a polymer bead. Preferably, the lubricating aid may be a mixture of glycol-based compounds and polymer beads in a weight ratio of 1: 1/3 to 2. The lubricant auxiliary may exhibit a synergistic effect to improve lubricity when the polymer beads are mixed with a glycol-based compound. At this time, if the mixing ratio of the butylene glycol and polyurethane beads is less than 1: 1/3 weight ratio, the effect of improving lubricity is negligible, and if it exceeds 1:2 weight ratio, the film removal performance may be deteriorated due to excessive lubricity.

The glycol-based compound may be one or more selected from the group consisting of ethylene glycol, propylene glycol and butylene glycol. Preferably, the glycol-based compound may be used butylene glycol that imparts smooth properties without stickiness.

The polymer beads are powders having a spherical particle shape, such as silicon beads, polymethylmethacrylate beads, nylon beads, polyphenylene sulfide beads, polyethersulfone beads, polyamideimide beads, epoxy beads, polyester elastomer beads and polyurethanes. It may be one or more selected from the group consisting of beads. Preferably, the polymer beads may be flexible and elastic polyurethane beads.

Specifically, the polyurethane beads are polymerized with polyol and polyisocyanate, and can be prepared by a suspension polymerization method, a spray drying method, a non-solvent precipitation method, or the like, and a spherical particle shape may be used to improve lubricity.

In addition, the polyurethane bead has a unique elasticity, and in addition to the lubricating aid, it has a cleaning action to wipe off the stains on the glass surface. In particular, it can remain in the residues and grooves on the surface of old automobile glass with many fine residues and grooves. It is effective in removing abrasives and foreign substances.

The polyurethane beads may have a glass transition temperature of -52 to 35°C and an average particle size of 0.1 to 15 μm. At this time, if the average particle size of the polyurethane beads is less than 0.1 μm, the effect of improving lubricity is negligible. On the other hand, if the average particle size is more than 15 μm, the average particle size may be too large to degrade the oil film removal performance. Preferably, a glass transition temperature of -34 to -10°C and an average particle size of 2 to 6 μm can be used.

The lubricating aid may be used 3 to 20% by weight relative to the oil film removal agent composition. At this time, if the content is less than 3% by weight, the lubricity may be deteriorated. Conversely, if it is more than 20% by weight, the effect of further improving the lubricity cannot be expected and manufacturing cost may increase.

(4) surfactant

The surfactant may be included to remove organic contaminants and improve cleaning power and dispersibility. As the surfactant, a nonionic surfactant having excellent cleaning power and relatively little foaming may be used. Specifically, the surfactant may be one or more selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene fatty acid ester and polyoxyethylene sorbitan fatty acid ester. Preferably, polyoxyethylene alkylphenyl ether can be used as the surfactant. The polyoxyethylene alkylphenyl ether may be polyoxyethylene nonylphenyl ether.

The surfactant may be used in an amount of 0.1 to 5% by weight relative to the film removal agent composition. At this time, if the amount used is less than 0.1% by weight, the effect of improving the cleaning power cannot be expected. Conversely, if it is more than 5% by weight, bubbles are excessively generated and the surfactant remains, and stains and marks may remain on the glass surface after the oil film removal operation.

(5) Thickener

The thickener may be included to increase the viscosity of the composition and improve dispersibility. The thickener is selected from the group consisting of sodium polyacrylate, carboxyl methyl cellulose, hydroxy ethyl cellulose, hydroxy propyl methyl cellulose, polyacrylamide, polystyrene sulfonate, bentonite, laponite, montmorillonite, saponite and hectorite. It may be more than a species.

The thickener may be used in an amount of 0.1 to 5% by weight based on the oil removal agent composition. At this time, if the amount used is less than 0.1% by weight, the effect of increasing the viscosity is negligible. On the contrary, when it is more than 5% by weight, the viscosity is too high, and thus the oil film removal workability may be deteriorated.

(6) Solvent

The solvent can be mixed to dissolve abrasives, lubricants, lubricant aids, surfactants and thickeners. The solvent may be water or alcohol. As the alcohols, alcohols such as methyl alcohol, ethyl alcohol, propyl alcohol and isopropyl alcohol can be used.

When each component is added and stirred as described above, an oil film remover composition for automobile glass according to the present invention can be prepared. Also, depending on the application, a freeze stabilizer, pH adjuster, dye and pigment, and fragrance may be further added.

As described above, the oil film remover composition for automobile glass of the present invention, in particular, applies polyalkylene glycol as a lubricant, and applies a mixture of a glycol-based compound and a polymer bead as a lubricant to improve continuous workability with excellent lubricity and low evaporation. Can.

In addition, it is possible to improve the oil removal efficiency of various contaminant films and water-repellent films formed on the glass surface of a vehicle by the use of these lubricants and the auxiliary agents and the selective use of specific components.

Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited by the following examples.

Examples 1-13 and Comparative Examples 1-16

Using the components shown in Tables 1 to 3, an oil film remover composition for automobile glass was prepared by a conventional method. The prepared film remover composition for automobile glass had a kinematic viscosity at 20°C of 2000 mPas.

Experimental Examples 1-3

Physical properties were measured in the following manner using the oil film remover compositions prepared in Examples 1 to 13 and Comparative Examples 1 to 16.

[How to measure]

After forming a water-repellent film by applying a water-repellent coating agent (trade name: Lane OK, Bulls One Co., Ltd.) on a glass plate having a size of 15 cm x 60 cm, after 24 hours, the above Examples 1 to 13 and Comparative Example 1 A certain amount of the oil film remover composition for automobile glass prepared in ~16 was dropped on a glass plate. Then, using a sponge wrapped with a cotton material, the water-repellent film removal operation was performed under the conditions of 50 rotations, 100 rotations, and 150 rotations, respectively, at a load of about 50 g/cm 2. Then, the oil film removal performance, lubricity, wettability, evaporation loss and contact angle (water droplet contact angle) were tested and evaluated, and the results are shown in Tables 4 to 6 below.

(1) Oil film removal performance test

The oil film remover compositions prepared in Examples 1 to 13 and Comparative Examples 1 to 16 were subjected to a water repellent film removal operation such as 50 rotations, 100 rotations, and 150 rotations at a load of 50 g/cm 2, and the residual oil removal agent on the glass plate was then performed. They were washed with water and then dried at room temperature.

After spraying water on the dried test glass plate, the area where the water was wet on the surface of the glass plate was visually observed and quantified. For reference, when the water-repellent film is removed, the water repellency disappears, and the water becomes well wet, so the test result is wet. The area closer to 100% was judged to be superior, and the measured value was expressed as %.

(2) Lubricity test

Lubricity of the oil removal agent compositions prepared in Examples 1 to 13 and Comparative Examples 1 to 16 was performed while removing the water-repellent film, such as 50 rotations, 100 rotations, and 150 rotations at a load of 50 g/cm 2, thereby improving lubricity during operation. It evaluated by the following criteria.

[Evaluation standard]

◎ It moves very smoothly and smoothly, and does not take power.

○ It moves relatively smoothly and does not apply force.

△ Gives a slight stiff feeling, and takes some power.

X Very stiff, does not slide well, and consumes a lot of power.

(3) wettability test

The oil film remover compositions prepared in Examples 1 to 13 and Comparative Examples 1 to 16 exhibited the wettability during the operation while performing water-repellent film removal operations such as 50 rotations, 100 rotations, and 150 rotations at a load of 50 g/cm 2. It evaluated by the following criteria.

[Evaluation standard]

◎ It does not dry well and is moist and moist.

○ Relatively dry, wet.

△ Slightly dry and dry.

X completely dry.

(4) Evaporation loss test

The oil removal agent compositions prepared in Examples 1 to 13 and Comparative Examples 1 to 16 were each measured about 10 g, placed in an evaporation container, heated at 35° C. for 30 minutes using a hot air drying furnace, and then lost (loss) of the oil removal agent. % By weight). As a result, it was judged that the lower the evaporation loss, the lower the evaporation property of the oil film remover composition.

(5) Contact angle test

For the contact angle test, MSA (Mobile Surface Analyzer) equipment of KRUSS, Germany was used, and the oil removal agent prepared according to the above Examples and Comparative Examples was rotated 150 times to perform a water-repellent film removal operation, and sprayed water to evaluate the oil removal performance test. And then dried at room temperature for about 10 minutes.

A drop of water was dropped on the dried glass, and a straight line was drawn on the liquid surface (water droplet surface) at the point where the water droplet and the glass surface contacted to measure the imprinted contact angle to the glass surface. For reference, when the water-repellent film is removed, the water-repellent properties disappear, and the water is wetted well, so the lower the contact angle, the better it was judged.

Experimental Example 1: Comparison of physical properties according to the amount of lubricant used and the difference in kinematic viscosity

According to the results of Table 4, in the case of Examples 1 to 7, when the content of the lubricant is 10 to 30% by weight, and the kinematic viscosity at 40°C is 20 to 220 mm ² /s, the oil film removal performance after 150 rotations is obtained. More than 95%. Lubricity, wettability and evaporation loss also showed excellent overall results. In addition, it was confirmed that the evaporation loss decreases as the content of the lubricant increases, improving the low evaporation properties.

On the other hand, in the case of Comparative Example 1 containing 5% by weight of the lubricant, the oil film removal performance and the evaporation loss rapidly decreased. In addition, it was confirmed that the wettability was good, but the lubricity was not good.

On the other hand, in Comparative Example 2 using a lubricant having a kinematic viscosity of 320 mm ² /s at 40° C., the wettability and evaporation loss were excellent, but it was confirmed that the film removal performance was deteriorated due to the high kinematic viscosity.

Experimental Example 2: Comparison of properties of the mixture component ratio of the lubricant and the particle size of the polyurethane

According to the results of Table 5, in the case of Examples 8 to 11 in which butylene glycol and polyurethane beads were mixed in an appropriate ratio (1: 1/3 to 2 weight ratio) as a lubricant aid, oil film removal performance, lubricity, wettability, and It was confirmed that the evaporation loss was very good.

On the other hand, in the case of Comparative Examples 3 and 4 in which butylene glycol and polyurethane beads were mixed in a weight ratio of 1:3 as a lubricating aid, or that the average particle size of the polyurethane beads was 10 μm, lubricity, wettability and evaporation loss were Although excellent, the oil film removal performance was low to 85% or less.

In addition, in the case of Comparative Examples 5 to 8 in which only one of the lubricant and the lubricant aid was used or none of these components were used, the oil film removal performance, lubricity and wettability were remarkably reduced. On the other hand, it was found that the oil film was easily dried by increasing the evaporation loss.

Experimental Example 3: Comparison of physical properties according to the amount of abrasive used and components

According to the results of Table 6, it was confirmed that the abrasives contained all three components, but in the case of Examples 12 to 13 containing 30 to 52.5% by weight of these components, the properties of oil film removal, physical properties of lubricity and wettability were very good. Did. In addition, it was confirmed that the evaporation loss is further reduced when the amount of the abrasive is increased.

On the other hand, in Comparative Examples 9 and 10, when the amount of the abrasive used was too low, it was confirmed that the oil film removal performance rapidly decreased. Conversely, if the amount of abrasive used is large, the evaporation loss can be greatly reduced, but it was found that the lubricity and wettability are poor.

In addition, in Comparative Example 11 using cerium oxide alone as an abrasive, it was confirmed that the oil film removal performance was significantly reduced. On the other hand, in Comparative Examples 12 and 13, as an abrasive, aluminum oxide having a very high Mohs hardness (Mohs hardness: about 9) and silicon carbide (Mohs hardness: about 9 to 10) alone resulted in oil film removal performance, lubricity and wettability. It was confirmed that all the items showed very good physical properties. However, when such a component having a high Mohs hardness is used alone as an abrasive, there is a problem in that scratches or wounds are generated on the glass surface when the oil film is removed.

In addition, in the case of Comparative Examples 14 to 16, each component was used alone as an abrasive, and when no lubricant or lubricant was used at all, the film removal performance was rapidly reduced. In addition, the lubricity and wettability characteristics were also very bad, and there was a problem in that the oil removing agent rapidly evaporated due to an increase in evaporation loss.

Claims (10)

Abrasives 23-59 wt%;
10 to 35% by weight of a lubricant containing polyalkylene glycol;
3-20% by weight of a lubricant aid comprising a mixture of a glycol-based compound and a polymer bead;
0.1 to 5% by weight of surfactant;
0.1 to 5% by weight of a thickener; And
Solvent 15 to 45% by weight;
Oil film remover composition for automobile glass comprising a.
According to claim 1,
The abrasive is selected from the group consisting of calcium carbonate, magnesium oxide, calcium phosphate, silica, titanium oxide, zirconium oxide, zirconium silicate, iron oxide, cerium oxide, cerium hydroxide, aluminum oxide, silicon carbide, boron carbide, titanium carbide and diamond. Oil film remover composition for automobile glass that is more than one species.
According to claim 1,
The polyalkylene glycol is selected from the group consisting of polyethylene glycol, polypropylene glycol, ethylene oxide propylene oxide block copolymer, ethylene oxide propylene oxide random copolymer or a combination thereof, a film removal agent composition for automobile glass.
According to claim 3,
The ethylene oxide propylene oxide random copolymer is 40 to 60% by weight of ethylene oxide and 40 to 60% by weight of propylene oxide randomly copolymerized film removal agent composition for automobile glass.
According to claim 3,
The ethylene oxide propylene oxide random copolymer has a weight average molecular weight (Mw) of 500 to 3400 g/mol, a flash point of 160 to 258°C, and a dynamic viscosity of 20 to 220 mm ² /s at 40°C. Dragon oil removal agent composition.
According to claim 1,
The lubricating aid is a mixture of a glycol-based compound and a polymer bead in a weight ratio of 1: 1/3 to 2, the film remover composition for automobile glass.
According to claim 1,
The polymer beads are selected from the group consisting of silicone beads, polymethylmethacrylate beads, nylon beads, polyphenylene sulfide beads, polyethersulfone beads, polyamideimide beads, epoxy beads, polyester elastomer beads and polyurethane beads. Oil film remover composition for automobile glass that is more than one species.
The method of claim 7,
The polyurethane beads have a glass transition temperature of -52 ~ 35 ℃, the average particle size is 0.1 ~ 15 ㎛ oil film remover composition for automobile glass.
According to claim 1,
The surfactant is at least one selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene fatty acid ester, and polyoxyethylene sorbitan fatty acid ester.
According to claim 1,
The thickener is selected from the group consisting of sodium polyacrylate, carboxyl methyl cellulose, hydroxy ethyl cellulose, hydroxy propyl methyl cellulose, polyacrylamide, polystyrene sulfonate, bentonite, laponite, montmorillonite, saponite and hectorite. Oil film remover composition for automobile glass that is more than one species.