KR101814346B1 - The Paint Composition for using a Road Marking of a Two Component Paint - Google Patents

Abstract

The present invention relates to a dual-liquid type road surface marker coating composition with excellent abrasion resistance, durability, and impact resistance and a preparing method thereof. The dual-liquid type road surface marker coating composition is quickly cured and dried within 3-10 minutes. According to the present invention, the dual-liquid type road surface marker coating composition includes: a main ingredient including a composite acrylic resin, a bi-functional acrylic resin, a dispersant, a stabilizer, a reaction promoter, a flow control agent, a thickener, a coloring pigment, and an extender pigment; and a curing agent which includes benzoic acid branched alkyl ester, benzoyl peroxide, reaction products of dichlorodimethylsilane and silica, and octadecanoic acid zinc salt as main ingredients.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a liquid coating composition for road surface marking,

The present invention relates to a room temperature curable two-pack type coating composition for road surface marking capable of producing a road mark having excellent abrasion resistance, durability and impact resistance even when sprayed at one time by mixing a curing agent with the subject of this liquid type road marking coating

Generally, road surface marking paints that use lacquer to distinguish the driving direction or the boundary between the lane and the lane on the road surface are applied by a lane marking apparatus.

Korean Patent No. 0346415 (a lane drawing method using an uneven lane drawing apparatus and its apparatus), Korean Patent No. 0346416 (a manual uneven lane drawing apparatus and a lane drawing method using the apparatus) A technique relating to a lane marking apparatus to be used is disclosed.

In the prior art, this liquid type lane car has a structure in which a main body and a hardening agent are mixed through a screw blender and then sprayed by a single injector. When the lane painting operation is performed for about 30 minutes to 1 hour, the paint is hardened in the sprayer, A considerable problem occurs which is inconvenient.

Accordingly, Korean Patent No. 1477750 (a coating composition for a two-liquid type lacquering paint) discloses an operation of painting a lane by mixing a subject and a hardener on the road surface while spraying a subject and a hardener on the road surface, respectively. However, when the curing agent and the base material are sprayed separately, they are not completely mixed after being sprayed, so that the curing is partially performed and the uniform binding force can not be realized. As a result, the durability, abrasion resistance, .

In addition, Korean Patent Publication No. 1426172 (a two-pack type paint composition for road marking) is used to improve the adhesion and durability of paints by using acrylic acid beads with methyl methacrylate (MMA) and butyl acrylate monomer, BAM), and a resin solution prepared by dissolving the resin in an acrylic monomer; A complementary agent comprising an epoxy-based highly reactive resin for significantly reducing the amount of tertiary amine and improving whiteness and yellowing resistance; And a curing agent containing benzoyl peroxide (BPO), which is prepared in a liquid phase, to shorten the curing time, but may cause cracks or the like.

Prior Art 1: Korean Patent Registration No. 0346415 Prior Art 2: Korean Patent Registration No. 0346416 Prior Art 3: Korean Patent Registration No. 1477750 Prior Art 4: Korean Patent Registration No. 1426172

DISCLOSURE OF THE INVENTION The object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a liquid coating composition for road surface marking which can produce a road marking coating film having excellent abrasion resistance, durability and impact resistance, Compositions.

It is still another object of the present invention to provide a liquid surface type coating material which is capable of accelerating curing and drying of the coating liquid for road surface marking within a period of 3 to 10 minutes while preventing cracks from occurring and shortening the working time, And to provide a coating composition for marking.

In order to achieve the above object, the present liquid coating composition for road surface marking comprises at least one member selected from the group consisting of methyl methylacrylate, n-butylacrylate, n-butyl methacrylate, Acrylic resin, 2-ethylhexyl 2-propenonate, polyfunctional acrylic resin-based polyethylene glycol-based bifunctional acrylic resin, dispersant, (1), (2), and (3), a benzoic acid branched alkyl ester and a benzoyl peroxide such as benzoyl peroxide ), A reaction product of dichlorodimethylsilicone with silica (Octadecanoic acid zinc salt) And it characterized in that.

Preferably, the subject matter is selected from the group consisting of 29.35-47% by weight of composite acrylic resin, 1-5% by weight of bifunctional acrylic resin, 0.1-0.5% by weight of dispersant, 0.01-0.05% by weight of stabilizer, 0.19-0.7% by weight of reaction promoter, 0.7% by weight of a thickener, 0.1-0.7% by weight of a thickener, 14-17% by weight of a coloring pigment, and 37.5-46% by weight of an extender pigment of extender pigments 1 and 2 having different particle sizes.

 Preferably, the reaction promoter is para-Toluidine ethoxylate.

Preferably, the colored pigment is any one of a white pigment, a yellow pigment, a blue pigment, a green pigment and a purple pigment, or a combination thereof (coloring).

Preferably, the extender pigment is mica, calcium talc or silica, barium sulphate (barium sulphate).

Preferably, the flow control agent is a modified urea solution.

Preferably, the stabilizer is a quinone system such as toluohydroquinone or methoxyhydroquinone.

The liquid coating composition for road surface marking according to the present invention has the effect of producing a road marking having excellent abrasion resistance, durability and impact resistance by mixing the coating agent with the curing agent in one shot .

Another object of the present invention is to provide a curing and drying method for the coating liquid for road surface marking which is rapid in 3 to 10 minutes without causing cracks, thereby minimizing road traffic control time and work time.

Hereinafter, the configuration of the present invention will be described in detail.

Prior to this, although the term used in the present invention is a general term that is widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, specific details for carrying out the invention The meaning should be understood in consideration of the meaning used.

Therefore, the constitution described in the specification of the present invention is merely a preferred embodiment of the present invention, and not all of the technical ideas of the present invention are expressed, so that various equivalents and variations It should be understood that examples may exist.

The liquid coating composition for road surface marking according to the present invention is used for improving the adhesion and durability of a paint sprayed on a road formed of asphalt or concrete for a lane, a composite acrylic resin, a bifunctional acrylic resin, a dispersant, a stabilizer, (1), (2), (3), (4), (5) and (6), wherein the pigment is selected from the group consisting of benzoic acid branched alkyl ester and benzoyl peroxide, A reaction product of dichlorodimethylsilane and octadecanoic acid zinc salt, and a curing agent composed of octadecanoic acid zinc salt.

The subject matter of the present invention is a composition comprising 29.35-47% by weight of a composite acrylic resin, 1-5% by weight of a bifunctional acrylic resin, 0.1-0.5% by weight of a dispersant, 0.01-0.05% by weight of a stabilizer, 0.19-0.7% by weight of a reaction promoter, 0.7% by weight of a thickener, 0.1-0.7% by weight of a thickener, 14-17% by weight of a coloring pigment, 37.5-46% by weight of an extender pigment of extender pigments 1 and 2 having different particle sizes.

Composite acrylic resin is used as the main component of paint and improves adhesion and durability. The composite acrylic resin is preferably used in an amount of 29.35-47% by weight based on the total amount of the subject. If it is used in an amount less than 29.35% by weight, cracks may occur along with deterioration of adhesion and durability. When the amount exceeds 47% by weight, silking during paint spraying may cause poor appearance of the coating.

Binary Specialty Chemicals' bifunctional acrylic resin reduces the curing time by increasing the reactivity after painting by the bifunctional reactor participating in the radical reaction.

 The bifunctional acrylic resin is preferably used in an amount of 1-5% by weight based on the total amount of the subject. When it is used in an amount exceeding 5% by weight, it is unstable due to its high reactivity and there is a problem of deterioration of physical properties of the coating film.

The dispersing agent is preferably used to keep each particle in a well dispersed state without aggregation, and it is preferable to use an alkylol ammonium salt-based dispersant (BYK) of a block polymer having an acidic group. Such a dispersant is used in an amount of 0.1-0.5 wt% based on the total amount of the subject, and when it is used in an amount of less than 0.1 wt%, the dispersing effect is low and there is a problem in aggregation of the particles, and there is a disadvantage that curing after spraying is delayed when using more than 0.5 wt%.

The stabilizer is used to adjust the rapid reaction in the radical reaction and it is preferred to use toluhydroquinone (manufactured by Eastman) or methoxyhydroquinone. The stabilizer may be used in an amount of 0.01 to 0.05% by weight based on the total amount of the subject. When the amount of the stabilizer is less than 0.01% by weight, the reaction of the coating may be accelerated and the workability may be deteriorated. You can give.

The reaction promoter is para-Toluidine ethoxylate (GEO Spherical Chemical Bisomer PTE), which is used to promote the reaction of the cured acrylic resin with the curing agent. The reaction promoter is preferably used in an amount of 0.19-0.7 wt% based on the total amount of the subject. When the amount is less than 0.19% by weight, the reaction time is increased and the curing time is increased. When the amount exceeds 0.7% by weight, there is a problem that the curing agent is cured during the mixing process of the painting apparatus.

The flow control agent is used to adjust the thickness to be applied without keeping the viscosity at a constant level, and a modified urea solution is preferred. The flow control agent is preferably used in an amount of 0.1-0.7 wt% based on the total amount of the subject. When it is used in an amount less than 0.1% by weight, it is difficult to maintain a constant viscosity and there is a disadvantage that it flows down when it is applied. When it exceeds 0.7% by weight, it is difficult to control the applied thickness.

The thickener is used to control the viscosity of the paint. The thickening agent is preferably used in an amount of 0.1-0.7 wt% based on the total amount of the subject. When it is used in an amount of less than 0.1% by weight, there is a disadvantage that it flows down when it is applied, and there is a problem that it becomes GEL when it is used in excess of 0.7% by weight. The thickener is fumed silica.

The color pigment is for determining the color of the paint according to the application, and may be a white pigment, or one of a yellow pigment, a blue pigment and a green pigment, or a combination thereof (coloring). The color pigment is preferably used in an amount of 14 to 17% by weight based on the total amount of the subject. When it is used in an amount of less than 14% by weight, the visibility is lowered. When it exceeds 17% by weight, cracks are generated or adhesiveness is lowered.

The extender pigments of the extender pigments 1 and 2 having different particle sizes are used to control the durability, adhesion and physical properties of the paints and can be used in combination with mica, talc, calcium carbonate or silica powder (Lechem, OCI), barium sulfate Is preferably used. The extender pigment is preferably used in an amount of 37.5-46% by weight based on the total amount of the subject. When it is used in an amount less than 37.5% by weight, durability and sprayability of the paint in the painting apparatus are deteriorated. When the content exceeds 46% by weight, there is a problem that the surface to be painted is poor in adhesion and cracking occurs and durability is poor.

On the other hand, the curing agent is used not only as a curing agent for curing the paint by reacting with the base, but also for controlling the physical properties according to the purpose of the user. Examples of the curing agent include benzoic acid branched alkyl ester and benzoyl peroxide ), A reaction product of dichlorodimethylsilane reaction products with silica, and an octadecanoic acid zinc salt is used. Such a curing agent is preferably used in an amount of less than 2 parts by weight of the curing agent with respect to the subject. When the amount is more than 2 parts by weight, there is a problem that the composition is hardened during the compounding process or the adhesive force is decreased, resulting in a decrease in durability after application.

On the other hand, the method of the present invention for producing a coating composition for a liquid type road surface marking comprises a step of mixing a composite acrylic resin and a bifunctional acrylic resin with stirring at a speed of about 100 rpm with a stirrer capable of controlling the speed to a container of about 1 ton size, Stirring the pigment with a dispersing agent, a stabilizer, a reaction promoter, a flow control agent and a thickening agent, stirring the pigment with a coloring pigment at a speed of about 500 rpm, preliminarily dispersing the coloring pigment, stirring the pigment at a speed of 500 rpm, , And stirring the mixture at about 1300 rpm for about 40 minutes at a high speed to prepare a subject. The subject and the curing agent are put into a blender of a painting apparatus and painted while mixing with a screw.

≪ Examples 1 to 3 >

As shown in Table 1, the composite acrylic resin was put into a container of about 1 ton on the basis of weight%, and the bifunctional acrylic resin was stirred while stirring at a speed of about 100 rpm for about 5 minutes, and stirred for about 10 minutes. Then, dispersant, stabilizer, reaction promoter, flowability adjuster, and thickener are sequentially added at 5 minute intervals at a speed of about 100 rpm and stirred. Then, after the coloring pigment is added at a speed of about 500 rpm, stirring is performed for about 10 minutes. In addition, the extender pigment is added at a speed of about 500 rpm, stirred for about 10 minutes, and stirred at about 1300 rpm for about 40 minutes to prepare a subject. The curing agent is composed of benzoic acid branched alkyl ester, benzoyl peroxide, the reaction product of silica with dichlorodimethylsilane reaction products and octadecanoic acid zinc salt KJB-400W manufactured by Kumyang Co., Ltd. was used, and the ratio thereof was set to a weight ratio of the subject: hardener = 98: 2.

Then, the subject of each example and comparative example and the curing agent were blended with a screw in a blender before spraying and then sprayed onto the road surface. The results of viscosities, observability, visual observation, tackiness and the like of the sprayed paint were checked. Respectively.

ingredient Example 1 Example 2 Example 3 Comparative Example 1 Composite acrylic resin (Yusemec Co., Ltd.) 40 42 44 37 Bifunctional acrylic resin (Miwon Specialty Chemical) knife) One 2 One One Dispersant (BYK) 0.1 0.1 0.1 0.1 Stabilizer (Eastman) 0.01 0.01 0.01 0.01 GEO specialty chemicals 0.5 0.5 0.5 0.5 Flow regulator (BYK) 0.3 0.2 0.2 0.4 Thickener (OCI) 0.3 0.4 0.5 0.2 Colored pigments (DuPont) 15 16 15 15 Extension Pigment 1 (Lemem) 20.79 16.79 16.69 23.79 Extension Pigment 2 (Lechem) 22 22 22 22 Sum 100 100 100 100

ingredient Example 1 Example 2 Example 3 Comparative Example 1 Viscosity (Ku / 25 캜) 95 94 92 97 Workability Good Good Good usually Visual observation no problem no problem no problem Cracking Stickiness Good Good Good Good Pot life (25 ℃) 2 minutes 40 seconds 2 minutes 41 seconds 2 minutes 43 seconds 2 minutes 38 seconds Curing Time (25 ℃) 9 minutes 30 seconds 9 minutes 40 seconds 9 minutes 41 seconds 9 minutes 28 seconds

 As shown in Table 2, when the paints were painted using the coating composition for road surface marking according to the present invention, it was found that the curing time was less than 10 min and the crack did not occur at a viscosity of 95 or less within 3 minutes .

As described above, the above-described embodiments of the present invention are illustrative only and various modifications and equivalent embodiments are possible without departing from the scope of the present invention. The true scope of protection of the present invention should be determined by the technical idea of the attached patent office.

Claims (12)

Methyl methylacrylate, n-butylacrylate, n-butyl methacrylate, acrylic resin, 2-ethylhexyl 2-propenate 2-ethylhexyl 2-propenonate) and 1-5% by weight of a bifunctional acrylic resin (polyethyleneglycol) based on a polyfunctional acrylic resin, 0.1-0.5% by weight of a dispersant, Wherein the composition contains 0.01-0.05 wt% of a stabilizer, 0.19-0.7 wt% of a reaction promoter, 0.1-0.7 wt% of a flow control agent, 0.1-0.7 wt% of a thickener, 14-17 wt% of a color pigment, and 37.5-46 wt% A benzoic acid branched alkyl ester, and a benzoyl peroxide. The coating composition for road surface marking according to claim 1,
delete delete delete The method according to claim 1,
Wherein the dispersant is an alkylol ammonium salt of a block polymer.
The method according to claim 1,
Wherein the stabilizer is a quinone system comprising toluhydroquinone or methoxyhydroquinone.
The method according to claim 1,
Wherein the reaction promoter is para-toluidine ethoxylate. ≪ RTI ID = 0.0 > 11. < / RTI >
delete delete delete delete The method according to claim 1,
The curing agent is selected from the group consisting of benzoic acid branched alkyl ester, benzoyl peroxide, reaction products of silica with silica, octadecanoic acid zinc salt, Wherein the coating composition for a road surface marking comprises a coating composition for coating a surface of a liquid.