KR102533612B1 - Anti-scattering composition having core-shell structure capable of realizing color - Google Patents

Abstract

The application relates to an anti-scattering composition with a core-shell structure capable of implementing colors, and more specifically, to an anti-scattering composition with a core-shell structure capable of implementing colors, which includes polymer particles with a core-shell structure or an emulsion including the same as a dispersoid, thereby displaying color and anti-scattering effects at the same time.

Description

Shatterproof composition with a core-shell structure capable of implementing colors {ANTI-SCATTERING COMPOSITION HAVING CORE-SHELL STRUCTURE CAPABLE OF REALIZING COLOR}

The present application relates to an anti-scattering composition having a core-shell structure capable of implementing color, and more particularly, including a core-shell structured polymer particle or an emulsion containing the same as a dispersoid, which simultaneously exhibits color implementation and anti-scattering effect. It relates to an anti-shattering composition of a core-shell structure capable of implementing colors that can be realized.

Scattered dust refers to dust that is directly emitted into the atmosphere without a regular outlet from yard sites in various industries such as roads, ports, bare land, construction sites, and agriculture. This is a very necessary industry.

In general, water is sprayed on roads, bare land, and workplaces, or some rely on imported fugitive dust suppressants. In the case of imported fugitive dust inhibitors, they are expensive or some are not eco-friendly products, which causes contamination of the environment such as soil and water quality.

Existing scattering dust inhibitors are mainly composed of inorganic compounds such as magnesium chloride or calcium chloride. In this regard, conventional Korean Patent Registration No. 10-0494538 discloses a method of spraying a mixture of magnesium chloride (MgCl2) or calcium chloride (CaCl2) and water. Calcium chloride composition is mainly used to suppress scattering dust in bare land such as racetracks or playgrounds in cold weather or high humidity, and absorbs moisture to suppress scattering dust. However, since it does not absorb moisture at a temperature of 25 ° C or higher and a relative humidity of about 31% or less, it is not useful in a dry climate in which dust scattering is a concern.

In addition, conventional scattering dust inhibitors using magnesium chloride (MgCl2) or calcium chloride (CaCl2) are used by mixing (diluting) with water, but when the dilution ratio of water is high, the scattering dust suppression effect is lowered. There is a problem. In order to solve this problem, the amount of water used compared to the undiluted solution is reduced or sprayed several times. In addition, when a high concentration or a large amount of magnesium chloride (MgCl 2 ) is used because the amount of water used is small compared to the undiluted solution, the salinity of the soil is increased to hinder plant growth and cause acidification of the soil. In addition, if the concentration of magnesium chloride (MgCl2) is high, it may cause corrosion of spraying equipment.

In addition, in order to suppress the dust generated from unpaved roads or construction sites, the existing situation is to suppress the generation of fine soil dust by spraying water. there is. In particular, in a dry climate with low relative humidity, since excessive dust is generated, a watering device and manpower are always on standby, and it is inconvenient to repeat the watering operation several times a day.

In addition, in a place such as a factory or barn, not only scattering dust, but also harmful substances and odors are generated due to the working environment, and germs are propagated, causing harmful problems to the human body. In particular, harmful substances and pollutants float in the air in a state mixed with dust and cause respiratory diseases in the human body.

Therefore, research on a new anti-scattering agent that can be applied to dust scattered in the air in various environments such as roads, ports, bare land, airfields, and railways, is eco-friendly, and can significantly improve the effect of reducing scattering dust at a low cost. development is needed

According to one embodiment of the present application, it is intended to provide a shatterproof composition having a core-shell structure capable of implementing colors using opaque polymer.

One aspect of the present application relates to an anti-shattering composition.

As an example, the anti-scattering composition is an anti-scattering composition comprising 25 to 30 parts by weight of an anti-scattering agent, 15 to 20 parts by weight of a binder, and 35 to 40 parts by weight of a solvent, the anti-scattering composition comprising core-shell structured polymer particles. or core-shell structured polymer particles as a dispersoid.

As an example, a colorant may be further included.

As an example, the colorant may be included in an amount of 0.5 to 1 part by weight.

As an example, the colorant may have a specific gravity of 0.95 to 1.05.

As an example, the core-shell structure of the polymer particles may have a glass transition temperature of 10 to 60°C.

As an example, the anti-scattering agent is 5 to 15 parts by weight of styrene; 5 to 15 parts by weight of 2-ethylhexyl ester; 0.1 to 5 parts by weight of butyl ester; 0.1 to 5 parts by weight of acrylic acid; 5 to 20 parts by weight of ethylene vinyl acetate; and 40 to 85 parts by weight of water.

As an example, the solvent may include water.

As an example, the anti-scattering composition is an anti-scattering composition comprising 25 to 30 parts by weight of an anti-scattering agent, 0.5 to 1 part by weight of a colorant, 15 to 20 parts by weight of a binder and 35 to 40 parts by weight of a solvent, the anti-scattering composition comprising a core- The colorant has a specific gravity of 0.95 to 1.05 by including shell-structured polymer particles or core-shell structured polymer particles as a dispersoid, so that it can be suspended in the anti-scattering composition.

According to one embodiment of the present application, an anti-shattering composition having a core-shell structure may be provided.

According to one embodiment of the present application, an anti-shattering composition having a core-shell structure having excellent anti-shattering properties can be provided.

According to one embodiment of the present application, it is possible to provide an excellent core-shell structure anti-scattering composition capable of implementing various colors.

1 to 7 are images of the test results on the wind speed test report tested by the Construction Machinery Parts Research Institute for the examples and comparative examples of the present application.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present application. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "include" or "have" are intended to designate that the features, components, etc. described in the specification exist, but one or more other features or components may not exist or be added. That doesn't mean there aren't any.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, it should not be interpreted in an ideal or excessively formal meaning. don't

Scattered dust is a general term for dust that is directly emitted into the atmosphere without a regular outlet, and is generated in many industries such as construction, cement, coal, and soil. Dust refers to particulate matter that floats or blows down in the air, and it is known that the smaller the particle size, the greater the adverse effect on the lungs. As a normal surface method for indicating the concentration of dust in the air, it is divided into Total Suspended Particles (TSP) and Particulate Matter (PM), which are smaller than 50 μm depending on the particle size. Fine dust is again divided into fine dust with a diameter of less than 10 μm (PM10) and fine dust with a diameter of less than 2.5 μm (PM2.5). If PM10 is about 1/5 to 1/7 smaller than the diameter of a human hair (50 to 70㎛), PM2.5 is very small, only about 1/20 to 1/30 of a human hair.

One aspect of the present application relates to an anti-shattering composition.

The anti-scattering composition may include an anti-scattering agent, a binder and a solvent. In addition, a colorant may be further included, and a scattering inhibitor, a colorant, a binder, and a solvent may be included.

Hereinafter, the anti-scattering composition for each component will be described in more detail.

anti-shattering agent

The anti-shattering agent can be applied to this application any component that can be used for the purpose of preventing scattering. However, it may have a composition having the following components.

Anti-scattering agent may be included in 25 to 30 parts by weight. The lower limit may be 25 parts by weight, 25.5 parts by weight, 26 parts by weight, 26.5 parts by weight, or 27 parts by weight, and the upper limit thereof may be 30 parts by weight, 29.5 parts by weight, 29 parts by weight, 28.5 parts by weight, or 28 parts by weight. there is.

The present application provides an anti-scattering agent mixed with styrene, 2-ethylhexyl ester, butyl ester, acrylic acid, ethylene vinyl acetic acid and the remaining amount of water in an appropriate ratio, so that the surface of fine dust is coated in a mesh structure to suppress scattering dust and By attracting scattering dust, it has an effect of reducing scattering dust more than 10 times compared to general water sprinkling, and can significantly reduce manufacturing costs.

As an example, the anti-scattering agent is 5 to 15 parts by weight of styrene; 5 to 15 parts by weight of 2-ethylhexyl ester; 0.1 to 5 parts by weight of butyl ester; 0.1 to 5 parts by weight of acrylic acid; 5 to 20 parts by weight of ethylene vinyl acetate; and 40 to 85 parts by weight of water.

The anti-scattering agent composition according to the present application does not easily evaporate at high temperatures and has the advantage of not freezing even at sub-zero temperatures in winter. In addition, as it is made of eco-friendly materials, it is harmless to the environment and can be applied to all soils without heavy metal contamination. It is possible, and there is an advantage that post-processing problems do not occur. Using this, there is an advantage that it can be used as a scattering dust prevention agent for roads or general watering.

The styrene is environmentally friendly, has excellent fluidity and heat resistance, is easy to process, and has excellent workability. In addition, the styrene may be cross-linked with 2-ethylhexyl ester and butyl ester to form a network structure on the surface of fine dust.

2-Ethylhexyl ester has excellent adhesion and can be mixed to improve adhesion to the surface of fine dust.

Butyl ester imparts adhesiveness, plasticity, moisture retention and lubricity to the anti-scattering agent composition, and can be mixed as a diluent.

Acrylic acid has the advantage of being excellent in adhesiveness and water resistance, and having biodegradability.

Ethylene vinyl acetate may be mixed with the styrene, 2-ethylhexyl ester, and butyl ester to improve cross-linking strength, and to increase adhesion to fine dust and waterproofness.

The anti-scattering agent of the present application has excellent water resistance and water immersion resistance when it essentially contains styrene, 2-ethylhexyl ester, butyl ester, acrylic acid, ethylene vinyl acetic acid and a residual amount of water, has no whitening phenomenon, and is compatible with pigments. It has the advantage of very excellent miscibility and workability. At the same time, it has viscosity stability, chemical and mechanical stability, and has excellent alkali resistance and stain resistance.

coloring agent

If the colorant is not included, it is transparent, and the desired color can be realized according to the color of the colorant. In addition, as described later, the specific gravity of the colorant is generally large, so it is difficult to achieve the desired color because it does not sink in the anti-scattering composition. In order to solve this problem, the present application can control the specific gravity of the colorant to be 0.95 to 1.05 by adding a binder component capable of providing a core-shell structure so that the colorant floats in the composition. The lower limit is 0.95, 0.96, 0.97, 0.98 or 0.99, and the upper limit may be 1.05, 1.04, 1.03, 1.02, 1.01 or 1.

The colorant may be included in an amount of 0.5 to 1 part by weight. The lower limit may be 0.5 parts by weight, 0.55 parts by weight, 0.6 parts by weight, 0.65 parts by weight, or 0.7 parts by weight, and the upper limit thereof may be 1 part by weight, 0.95 parts by weight, 0.9 parts by weight, 0.85 parts by weight, or 0.8 parts by weight. there is.

The colorant is a known pigment or dye used in an ink composition, and may be appropriately selected according to the material of the field to which the composition of the present application is applied. For example, the pigments include Pigment Yellow 12, Pigment Yellow 13, Pigment Yellow 14, Pigment Yellow 17, Pigment Yellow 74, Pigment Yellow 83, Pigment Red 2, Pigment Red 22, Pigment Red 23, Pigment Red 48:1, Pigment Red 48:2, Pigment Red 52, Pigment Red 53, Pigment Red 57:1, Pigment Red 122, Pigment Red 166, Pigment Red 170 , Pigment Red 266, Pigment Orange 5, Pigment Orange 16, Pigment Orange 34, Pigment Orange 36, Pigment Blue 15:3, Pigment Blue 15:4, Pigment Violet 3, Pigment Violet 27, It may be selected from the group consisting of Pigment Green 7, Iron Oxide, Pigment White 6, Pigment White 7, Pigment Black 7, and combinations of two or more thereof.

In addition, the dye may be selected from the group consisting of azo dyes, anthraquinone dyes, xanthene dyes, azine dyes, and combinations of two or more thereof.

bookbinder

The binder is characterized in that it is a core-shell structured starch-based polymer particle or an emulsion containing the same as a dispersoid. In addition, the glass transition temperature of the core-shell structured polymer particles is 10 to 60 ℃, preferably 15 to 50 ℃, wherein the glass transition temperature is measured from a coating film formed of starch-based polymer particles of the core-shell structure is the value When the core-shell structured starch-based polymer particles satisfy the above glass transition temperature range, most of the properties required for the anti-scattering composition show good values.

The binder may be included in 15 to 20 parts by weight. The lower limit may be 15 parts by weight, 15.5 parts by weight, 16 parts by weight, 16.5 parts by weight, or 17 parts by weight, and the upper limit thereof may be 20 parts by weight, 19.5 parts by weight, 19 parts by weight, 18.5 parts by weight, or 18 parts by weight. there is.

It consists of a copolymer formed by polymerization of a core monomer mixture in core-shell structured polymer particles. It is treated with a surfactant used to form the copolymer constituting the core and decomposed into a state that can be liquefied in water. At least one functional group selected from the group consisting of a carboxyl group, a carbonyl group, an aldehyde group, and an ester group may be used from the viewpoint of improving the efficiency of the polymerization reaction used to form the starch-based copolymer constituting the core.

The core monomer mixture used to form the copolymer constituting the core includes a hard monomer and a soft monomer.

The hard monomer refers to a monomer containing an ethylenically unsaturated bond such as a vinyl group, an allyl group, or an acryl group, and the homopolymer thereof is not viscous at room temperature. In the present application, a hard monomer is a monomer having these characteristics and having a glass transition temperature of a homopolymer of 30°C to 250°C, preferably 40°C to 200°C. In the present application, the type of hard monomer is not significantly limited as long as it satisfies the above characteristics, and is preferably styrene, methyl methacrylate, ethyl methacrylate, butyl methacrylate, acrylonitrile, methacrylonitrile, iso It may be composed of at least one selected from the group consisting of bornyl acrylate, isobornyl methacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, vinyl toluene, vinyl acetate, and vinyl chloride.

A soft monomer includes an ethylenically unsaturated bond such as a vinyl group, an allyl group, or an acryl group, and refers to a monomer whose homopolymer is viscous at room temperature. In the present application, the soft monomer is a monomer having these characteristics and having a glass transition temperature of a homopolymer of 10°C to -80°C, preferably 5°C to -60°C. In the present application, the type of soft monomer is not significantly limited as long as it satisfies the above characteristics, and preferably methyl acrylate, ethyl acrylate, butyl acrylate, ethylhexyl acrylate, ethylhexyl methacrylate, lauryl methacrylate rate, hydroxyethyl acrylate, hydroxypropyl acrylate, and may be composed of one or more selected from the group consisting of hydroxybutyl acrylate. In addition, the core monomer mixture may preferably further include a carboxylic acid monomer.

In the present application, the carboxylic acid monomer serves to increase the adhesion of the core-shell structured starch-based polymer particles, and the type is not greatly limited as long as it is a carboxylic acid having an ethylenically unsaturated bond, but preferably acrylic acid, meta It may be composed of at least one selected from the group consisting of krylic acid, itaconic acid, and fumaric acid. In addition, the core monomer mixture may preferably further include a chain transfer agent. In the present application, the chain transfer agent is for controlling the molecular weight of the copolymer, and the type is not significantly limited, and is preferably n-dodecyl mercaptan, t-dodecyl mercaptan, 1,5- Pentanedithiol, 1,6-hexanedithiol, 2-ethylhexyl-3-mercaptopropionate, butyl 3-mercaptopropionate, dodecyl 3-mercaptopropionate, ethyl 2-mercaptopropionate Cionate, ethyl 3-mercaptopropionate, methyl 3-mercaptopropionate, pentaerythritol tetrakis(3-mercaptopropionate), 2-ethylhexyl mercaptoacetate, ethyl 2-mercaptoacetate , 2-hydroxymethyl-2-methyl-1,3-propanediol, and pentaerythritol tetrakis (2-mercaptoacetate) may be composed of one or more selected from the group consisting of.

In the present application, the weight ratio of the starch decomposition product used to form the starch-based copolymer constituting the core and the core monomer mixture, and the weight ratio of the hard monomer, soft monomer, carboxylic acid monomer, and chain transfer agent constituting the core monomer mixture It is not particularly limited, but it is preferably limited to a predetermined range in view of the aspect of the polymer particles having a core-shell structure exhibiting an appropriate function as a binder in the anti-scattering composition.

In addition, the weight ratio of the soft monomer to the hard monomer in the core monomer mixture is preferably 1:1 to 1:2.5, and the glass transition temperature range required for core-shell structured starch-based polymer particles and physical properties as a binder are considered. It is more preferable that it is 1:1.2 to 1:2.2 when. Further, the content of the carboxylic acid monomer in the core monomer mixture is preferably 1 to 10 parts by weight, more preferably 2 to 8 parts by weight, per 100 parts by weight of the core monomer mixture. If the content of the carboxylic acid monomer in the core monomer mixture exceeds 10 parts by weight per 100 parts by weight of the core monomer mixture, the viscosity of the starch-based copolymer constituting the core is relatively increased, so that the formation of a coating film may not be smooth. In addition, the content of the chain transfer agent in the core monomer mixture is preferably 0.1 to 5 parts by weight per 100 parts by weight of the core monomer mixture, and more preferably 0.1 to 2 parts by weight in terms of rate control and stability of the polymerization reaction.

In the core-shell structured starch-based polymer particles, the shell is made of a copolymer formed by polymerization of a shell monomer mixture on the core. The shell monomer mixture used to form the copolymer constituting the shell contains a hard monomer. The shell monomer may further include a soft monomer in addition to the hard monomer, but it is preferably included in a small amount in consideration of the glass transition temperature range required for core-shell structured starch-based polymer particles and physical properties as a binder.

It is preferable that the weight ratio of soft monomer to hard monomer in the shell monomer mixture is 1:10 to 1:99, and considering the glass transition temperature range required for core-shell structured starch-based polymer particles and physical properties as a binder, 1 :50 to 1:99 is more preferable. Further, the content of the carboxylic acid monomer in the shell monomer mixture is preferably 0.5 to 10 parts by weight, more preferably 1 to 5 parts by weight, per 100 parts by weight of the shell monomer mixture. If the content of the carboxylic acid monomer in the shell monomer mixture exceeds 10 parts by weight per 100 parts by weight of the shell monomer mixture, the viscosity of the copolymer constituting the shell is relatively increased, so that the formation of a coating film may not be smooth. In addition, the content of the chain transfer agent in the shell monomer mixture is preferably 0.1 to 5 parts by weight per 100 parts by weight of the shell monomer mixture, and more preferably 0.1 to 2 parts by weight in terms of rate control and stability of the polymerization reaction.

In addition, the weight ratio of the core monomer mixture used to form the copolymer constituting the core in the starch-based polymer particles having a core-shell structure according to the present application to the shell monomer mixture used to form the copolymer constituting the shell It is preferably from 1:2 to 1:4, and more preferably from 1:2.5 to 1:3.5 considering the glass transition temperature range required for core-shell structured starch-based polymer particles.

The core-shell structured starch-based polymer particles used as the binder may be added in various forms depending on the polymerization method, etc., considering the simplicity of polymerization of the core-shell structured starch-based polymer particles and the ease of forming a uniform coating film. When added in the form of an emulsion is preferred. In this case, the emulsion is more preferably an aqueous emulsion containing core-shell structured starch-based polymer particles as a dispersoid and water as a dispersion medium. The aqueous emulsion can be obtained by preparing core-shell structured starch-based polymer particles by emulsion polymerization, and usually contains 35 to 60% by weight of solid content. The solid content is mainly composed of starch-based polymer particles having a core-shell structure, and may additionally include an emulsifier, a polymerization initiator, and the like.

In addition, the aqueous emulsion may further include an emulsifier for uniform dispersion of the core-shell structured starch-based polymer particles. The emulsifier may be added during a polymerization reaction to prepare core-shell structured starch-based polymer particles or when emulsifying core-shell structured starch-based polymer particles in a dispersion medium. The types of these emulsifiers are not particularly limited, and for example, reactive emulsifiers such as phosphoric acid ester-based emulsifiers or sulfate ester-based emulsifiers; anionic emulsifiers such as alkyldiphenyloxide disulfonates; and a nonionic emulsifier containing ethylene oxide or polypropylene oxide units, which may be used alone or in combination. The reactive emulsifier is added when preparing core-shell structured starch-based polymer particles by emulsion polymerization, and the type is not particularly limited. For example, ammonium salts of nonylpropenylethoxyether sulfate, polyoxyethylene alkylphenyl esters of allyl sodium sulfate, sulfonic acid esters of polyoxyethylene allyl glycidyl nonyl phenyl ether, ammonium salts of sulfonic acid esters of polyoxyethylene nonyl propenyl ether, etc. can be exemplified, and one or more of these can be selected and used. there is. The amount of the reactive emulsifier is not particularly limited, and considering the polymerization stability and chemical stability of the emulsion, it is preferably 1 to 30 parts by weight, more preferably 5 to 25 parts by weight per 100 parts by weight of the core monomer mixture. In addition, the anionic emulsifier is added when preparing core-shell structured starch-based polymer particles by emulsion polymerization, but the type is not particularly limited. For example, sodium decyl diphenyl ether disulfonate (SODIUM DECYL DIPHENYL ETHER DISULFONATE ; CAS Reg. No. 36445-71-3), sodium n-hexadecyl diphenyl disulfonate (CAS Reg. No. 65143-89-7), sodium dodecyl diphenyl ether disulfonate (SODIUM DODECYL DIPHENYL ETHER DISULFONATE; CAS registration number 119345-04-9) and the like. The amount of the anionic emulsifier is not particularly limited, and considering the polymerization stability and chemical stability of the emulsion, it is preferably 1 to 30 parts by weight, more preferably 5 to 25 parts by weight per 100 parts by weight of the core monomer mixture. In addition, the nonionic emulsifier is added when the core-shell structured starch-based polymer particles are prepared by emulsion polymerization or when the core-shell structured starch-based copolymer particles are emulsified in a dispersion medium, but the type is not particularly limited, For example, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene stearyl amines, polyethylene sorbitans, and alkyl polyoxyethylene-propylene copolymers may be listed, and one or more of them may be selected and used. The amount of the nonionic emulsifier used is not particularly limited, and is preferably 0.1 to 10 parts by weight, more preferably 0.5 to 5 parts by weight per 100 parts by weight of the core monomer mixture in terms of controlling the particle size of the core.

menstruum

The solvent is not particularly limited, but may include water. In addition, the solvent may be included in 35 to 40 parts by weight. The lower limit may be 35 parts by weight, 35.5 parts by weight, 36 parts by weight, 36.5 parts by weight, or 37 parts by weight, and the upper limit thereof may be 40 parts by weight, 39.5 parts by weight, 39 parts by weight, 38.5 parts by weight, or 38 parts by weight. there is.

The anti-shattering composition is also an anti-shattering composition comprising 25 to 30 parts by weight of an anti-shattering agent, 0.5 to 1 part by weight of a colorant, 15 to 20 parts by weight of a binder, and 35 to 40 parts by weight of a solvent, wherein the anti-shattering composition has a core-shell structure. The specific gravity of the colorant is 0.95 to 1.05 by including polymer particles or core-shell structured polymer particles as a dispersoid, so that it can be suspended in the anti-scattering composition.

Through this, it is possible to implement the effect of preventing scattering and implementing color at the same time.

Hereinafter, the present application will be described in more detail through experimental examples.

[Experimental Example]

A sample anti-scattering composition (surface curing agent) containing parts by weight of the anti-scattering agent, parts by weight of the colorant, parts by weight of the binder, and parts by weight of the solvent OO was prepared.

A wind speed test was performed on the sample at the Construction Equipment Research Institute, and the results are shown in Table 1 and FIGS. 1 to 7.

surface hardener Before test (g) After test (g) scattering amount Scattering reduction rate (%) Example 1 Primary sparge 6215 6205 10 99.83 Comparative Example 1 Primary not sprayed 6245 285 5960 - Example 2 Secondary sparge 6130 6120 10 99.81 Comparative Example 2 Secondary not sprayed 6295 965 5330 - Example 3 tertiary sparge 6100 6085 15 99.53 Comparative Example 3 tertiary not sprayed 6695 3495 3200 -

As shown in Table 1 and FIGS. 1 to 7, it was confirmed that there was a difference in the amount of scattering for the samples to which the surface hardener was sprayed and the samples to which the surface hardener was not sprayed.

Although the above has been described with reference to the preferred embodiments of the present application, those skilled in the art can variously modify and change the present application within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

Claims (8)

An anti-shattering composition comprising 25 to 30 parts by weight of an anti-shattering agent, 0.5 to 1 part by weight of a colorant, 15 to 20 parts by weight of a binder and 35 to 40 parts by weight of water,
The anti-scattering composition is an emulsion containing core-shell structured polymer particles or core-shell structured polymer particles as a dispersoid,
As the colorant has a specific gravity of 0.95 to 1.05, it is possible to float in the anti-scattering composition to realize color. delete delete delete According to claim 1,
The glass transition temperature of the core-shell structured polymer particles is 10 to 60 ° C. anti-shattering composition. According to claim 1,
Shatterproof agent is 5 to 15 parts by weight of styrene; 5 to 15 parts by weight of 2-ethylhexyl ester; 0.1 to 5 parts by weight of butyl ester; 0.1 to 5 parts by weight of acrylic acid; 5 to 20 parts by weight of ethylene vinyl acetate; And 40 to 85 parts by weight of water; Shatterproof composition containing. delete delete

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