KR102091216B1 - Hot-melt type paint composition for road mark and road marking method by using them - Google Patents

Abstract

The present invention relates to a fusion-type paint composition for a road sign, which comprises: 8 to 23 wt% of a petroleum resin; 1 to 5 wt% of wax; 15 to 31 wt% of a reflective material; 2 to 25 wt% of a pigment; 1 to 4 wt% of a modifier; and 40 to 68 wt% of a filler. The fusion-type paint composition for a road sign of the present invention has excellent adhesive strength to a road, does not easily detach the reflective material such as glass fibers or glass beads, and prevents damages such as discoloration, cracks, and deterioration of reflectance due to tire loads, thereby extending a service life.

Description

Hot-melt type paint composition for road mark and road marking method by using them}

The present invention relates to a fusion-type road surface coating composition and a construction method thereof, more specifically, adhesion is improved to stably adhere to the road surface, and a reflective material such as glass fiber or glass beads is not easily detached, and the tire load The present invention relates to a coating composition for a fusion-type road surface that can prevent damage such as discoloration and cracks, and a construction method therefor.

Generally, there are signs on the surface of the road to provide road information such as speed limit sign, bus lane sign, pedestrian crossing, child protection zone sign, and no parking sign. Furthermore, there are sports facilities, amusement facilities, walking paths, buildings, buildings There are also signs to provide various information on the road surface in facilities such as my parking lot.

Such road markings provide road users with various necessary information on the road, thereby inducing traffic safety and smooth communication and preserving the road structure. That is, the road sign is installed with the safety sign, and is in charge of the function of transmitting information of regulations and instructions to the user.

The paints used for road marking are largely divided into oil paints, water paints and fused paints.

Oil-based paints are prepared in a liquid form by mixing an organic solvent and a pigment in an acrylic or alkyd resin, and use of the solvent is limited recently because it contains volatile organic compounds as a solvent, causing air pollution during construction and drying.

Aqueous paints are prepared in a liquid form by mixing pigments with emulsion resins, and do not use organic solvents, so there are no problems with air pollution, but construction is limited and drying is slow, which interferes with vehicle communication for the duration of construction. There is also a problem that traffic jams occur.

Such oil-based paints and water-based paints are cured by removing the organic solvent or water in the drying process after construction, and accordingly, there is a problem in that durability and abrasion resistance are lowered by thinning the thickness of the packaging layer after curing.

The fusion type paint is a granular or powder type paint mainly composed of a thermoplastic resin, a pigment, a plasticizer, a filler, etc., and is heat-melted and applied in the field.There is little restriction on the coating thickness and has the advantage of being able to pass immediately after cooling. Therefore, the use rate is increasing.

Currently, petroleum resins are used as thermoplastic resins for fusion-type road marking materials. In the case of the existing fusing type road sign coating, it uses the petroleum resin based on C5 oil as the main component, and has the advantage of easy construction because it has excellent fluidity when heat-melting. The disadvantage is that it is inferior.

In order to improve this, studies have been conducted to reinforce mechanical properties by adding various additives to the existing coating composition for road markings, but fusion-type road surface that can improve durability and wear resistance after construction while maintaining fluidity during processing or construction Development of a coating composition for a label has not been made yet.

Registered Patent No. 10-1659511 (Registration on September 19, 2016)

In the present invention, it is possible to prevent damage such as discoloration, cracks, etc., due to tire load, and improves adhesion, stably adheres to the road surface, and a coating composition for a fusion-type road surface coating in which a reflective material such as glass fiber or glass beads is not easily detached. And its construction method.

(단, 화학식 1에서 n은 정수임)One embodiment of the present invention for achieving the above object, petroleum resin 8 to 23% by weight, wax 1 to 5% by weight, reflective material 15 to 31% by weight, pigment 2 to 25% by weight modifier 1 to 4% by weight % And 40 to 68% by weight of the filler, and the modifier is a compound obtained by reacting 160 to 250 parts by weight of a polymer resin based on 100 parts by weight of SBS rubber at a reaction temperature of 180 to 250 ° C, and the polymer resin, Characterized in that the mixture is a mixture of 15 to 30 parts by weight of hydrogenated C5 resin based on 100 parts by weight of a compound having a z average molecular weight of 13,000 to 170,000 composed of repeating units of styrene-indene-styrene of Chemical Formula 1 below.
[Formula 1]

(However, in Formula 1, n is an integer)

The petroleum resin may include at least one or more C5 resins selected from the group consisting of piperylene, isoprene, cyclopentadiene, dicyclopentadiene and 2-methyl-2-butene.

The reflector may include at least one or more of glass fiber, glass beads, and glass powder.

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The filler may include at least one or more selected from the group consisting of calcium carbonate, dolomite, silica, talc, magnesium carbonate, barium sulfate, titanium, clay, kaolin, mica, diatomaceous earth, and silica-based minerals.

Another embodiment of the present invention relates to a construction method of the fusion-type road sign coating composition, a pre-treatment step of arranging and flattening foreign matter on the road surface to be coated with the road sign coating film; A coating composition preparation step of preparing the coating composition for fusing type road marking; A coating step of heating and melting the fusion-type road surface coating material composition in a temperature range of 150 to 180 ° C. for 25 to 40 minutes, and then applying it to a road surface that has undergone a pretreatment step; And a drying step of drying the applied fusion-type road sign coating composition.

The coating composition for fusing type road surface coating of the present invention has excellent adhesion to a road surface, and a reflective material such as glass fiber or glass beads is not easily detached.

In addition, damages such as discoloration, cracks, and decrease in reflectance due to tire load are prevented, so that the service life can be extended.

Before describing in detail through the preferred embodiments of the present invention, terms or words used in the present specification and claims should not be interpreted as being limited to conventional or dictionary meanings, meanings consistent with the technical spirit of the present invention. And should be interpreted as a concept.

Throughout this specification, when a part “includes” a certain component, it means that the component may further include other components, not to exclude other components, unless otherwise stated.

Hereinafter, an embodiment of the present invention will be described. However, the scope of the present invention is not limited to the following preferred embodiments, and those skilled in the art can implement various modified forms of the contents described herein within the scope of the present invention.

First, the present invention relates to a fusion-type road sign coating composition and a construction method thereof, and more specifically, adhesion and cohesion are improved to stably adhere to the road surface and prevent detachment of the reflective material contained in the paint composition. In addition, it has excellent self-strength and durability, so that even if it is exposed to a tire load for a long time, cracks or discoloration do not occur, and it is possible to prevent the problem of deterioration of reflectance due to the desorption of the reflector. It relates to a composition.

According to an embodiment of the present invention, the coating composition for fusion-type road surface marking is 8 to 23% by weight of petroleum resin, 1 to 5% by weight of wax, 15 to 31% by weight of reflective material, and 2 to 25% by weight of pigment 2 to 4% by weight modifier % And 40 to 68% by weight of filler.

The petroleum resin serves to form a coating film strongly adhered to the road surface by imparting adhesion to the coating composition for fusion-type road markings, and to strongly bind other components included in the coating composition to each other.

The petroleum resin is preferably included in the total coating composition in an amount of 8 to 23% by weight. When the petroleum resin is included in an amount of less than 8% by weight, sufficient adhesive strength is not provided and the coating film is detached from the road surface, such as a reflector, pigment, or filler. When the particulate matter is easily detached from the coating film, a problem occurs in which the life of the coating film decreases, and when it is included in excess of 23% by weight, workability deteriorates due to excessive adhesion and elasticity of the coating film decreases, resulting in temperature or environmental changes. Cracks may occur.

Petroleum resins may include at least one or more C5 resins selected from the group consisting of piperylene, isoprene, cyclopentadiene, dicyclopentadiene and 2-methyl-2-butene, and C5 resins generated in the naphtha cracking process May be used as it is, or the one obtained by processing the C5 resin thus generated may be used.

Wax increases the viscosity so that the coating composition for the fusion-type road surface marker has a constant flow property to impart uniform and good spreadability when applied to the road surface. Paraffin wax, microcrystalline wax, carnuba wax, polyester wax, polyethylene wax As long as it is a commonly used wax, it can be used without particular limitation.

The wax may be included in the total coating composition in a weight range of 1 to 5% by weight, when the wax is contained in less than 1% by weight, the above-described viscosity improving effect is negligible, and when it exceeds 5% by weight, excessive viscosity increase When the coating composition is heat-mixed during construction, it is difficult to uniformly mix, and thus the physical properties of the coating film may be deteriorated.

The reflector is added to improve the visibility of the coating film during rainy weather or at night. As a reflector, a particulate material made of a glass material having excellent retroreflectivity can be used. At least one or more of glass fibers, glass beads, and glass powder may be used as the reflector, and it is preferable that glass beads and glass fibers having a particle diameter of 100 to 1200 μm are used together to improve adhesion with other components.

In the case of glass beads, it is more preferable to use those having a particle size range adjusted to 400 to 800 μm through sieving. When using those having a particle size range controlled as described above, not only the adhesion between the glass beads and the petroleum resin is improved, but also This is because the diffuse reflection rate due to the difference in particle size is reduced, thereby increasing visibility at night or in rain.

The reflective material may be included in the total coating composition in an amount of 15 to 31% by weight, and when it is contained in less than 15% by weight, it is difficult to obtain a sufficient retroreflective effect, and when it exceeds 31% by weight, petroleum resin for bonding the reflective materials to each other There may be a problem that the reflector is easily detached due to lack.

Pigments are added to impart color to the coating composition so that the coating film formed by the coating composition for fusing the road surface during construction can be visually distinguished from the road surface, and commonly used pigments can be used. Various colors such as white, yellow, green, and blue can be provided by appropriately mixing pigments.

The pigment is preferably included in the total coating composition in 2 to 25% by weight, and when it is included in less than 2% by weight, a sufficient color feeling may not be formed, so it may be difficult to visually distinguish the coating film and the road surface according to the weather, and 25% by weight When included in excess of%, the content of the pigment is excessive, so it is not firmly adhered to the coating composition, and thus, the color development force may be lowered due to pigment desorption, and the physical properties and durability of the coating film may be deteriorated.

The modifier improves the adhesion and cohesion of the coating composition for fusing type road markings, thereby improving adhesion to the road surface of the coating film. It is added to maintain the function of the coating film as a road surface marker for a long period of time by preventing such particulate material from being easily removed even when exposed. In addition, it also improves the flexibility of the coating film to prevent problems such as cracking and detachment of the coating film due to changes in the environment or temperature.

Such a modifier may be a compound obtained through the reaction of SBS rubber and a polymer resin, and the modifier may be included in a weight range of 1 to 4% by weight in the total coating composition. When the content of the modifier is less than 1% by weight, it is difficult to obtain the effect of improving the abrasion resistance of the coating film by the modifier, and when it exceeds 4% by weight, the adhesion and cohesive force may be excessively high, so that workability and workability may deteriorate. It is preferred to be included within.

In general, when constructing a coating composition for a fusion-type road surface coating, the particulate coating composition is fluidized by heating at about 150 ° C. for 30 minutes, and then applied to the road surface, and SBS rubber has a high softening point. When included in, since it must be heated for 2 hours or more at a temperature condition of about 200 ° C or higher, the construction time may increase, and the quality of the coating film may deteriorate due to the deterioration of the pigment or other components due to heat treatment at a high temperature for a long time. .

Thus, in the present invention, in order to secure the elastic force due to the SBS rubber and lower the softening point of the SBS rubber to enable rapid construction under general construction conditions, the SBS rubber and the polymer resin are reacted at 180 to 250 ° C. for 2 to 5 hours. The resulting compound is intended to be used as a modifier.

When the compound obtained by the reaction of the SBS rubber and the polymer resin as a modifier is used, the effect of improving the adhesion, cohesion, elasticity, low-temperature stability and high-temperature stability of the coating film can be obtained, and the softening point is lowered to 100 ° C. or less. Unlike the case of using rubber alone, it has the advantage of excellent workability since it exhibits fluidity quickly at low temperatures. This effect does not appear when SBS rubber is used alone or when polymer resin is used alone.

The modifier may be a material obtained by reacting 160 to 250 parts by weight of the polymer resin with respect to 100 parts by weight of the SBS rubber, and when the content of the polymer resin reacting with 100 parts by weight of the SBS rubber is less than 160 parts by weight, lower the softening point of the SBS rubber. It is difficult, and when it exceeds 250 parts by weight, it is preferable to use a material reacted within the above-mentioned weight range since sufficient coating film adhesion is not secured.

The polymer resin that reacts with the SBS rubber includes a compound of Formula 1 and a C5 resin to which hydrogen is added.

[Formula 1]

(In Formula 1, n is an integer)

The compound of Formula 1 and the hydrogenated C5 resin react with SBS rubber as described above to improve the adhesion, cohesion, elasticity, low-temperature stability and high-temperature stability of the coating film, and improve the workability of the coating composition for fusing type road marking. have.

In particular, the compound of Formula 1 is an aromatic polymer resin that reacts with a styrene group of SBS rubber, and has excellent UV stability, heat stability, chemical resistance, and moisture stability, and exhibits white color, and thus is used in a paint composition using a pigment. When used, there is an advantage that a desired color can be realized.

Hydrogenated C5 resin is an aliphatic polymer resin obtained by hydrotreating C5 resin, reacts with butadiene of SBS rubber, has excellent heating stability, and has no odor, so it can improve workability. At this time, at least one or more of piperylene, isoprene, cyclopentadiene, dicyclopentadiene, and 2-methyl-2-butene may be included as the C5 resin to be hydrotreated, but piperylene may be preferably included.

The polymer resin that reacts with the SBS rubber may include 15 to 30 parts by weight of hydrogenated C5 resin relative to 100 parts by weight of the compound of Formula 1.

When the compound of Formula 1 or the hydrogenated C5 resin is used alone as the polymer resin, or when two materials are used together but outside the range of the weight ratio described above, the effect of improving the physical properties of the coating film due to the modifier and improving the workability Since it is difficult to obtain an effect, it is preferable to use a hydrogenated C5 resin and a compound of Formula 1 that satisfies the above weight ratio range as a polymer resin.

At this time, in order to increase the compatibility, plasticity, and stability of the modifier, the compound of Formula 1 contained in the polymer resin uses a z average molecular weight of 13,000 to 170,000, and the hydrogenated C5 resin uses a z average molecular weight of 1,800 to 2,500. It is preferred.

The filler is added to improve the abrasion resistance of the coating film formed by the coating composition for fusing type road marking, suppress cracking of the petroleum resin, and improve friction of the coating film due to protrusion. As the filler, calcium carbonate, dolomite, silica, talc, magnesium carbonate, barium sulfate, titanium, clay, kaolin, mica, diatomaceous earth, and silica-based minerals may be used, preferably calcium carbonate and at least one other filler. A mixture may be used, in which case, a white color and an opaque property are imparted to the coating film by calcium carbonate to improve the visibility of the coating film, and calcium carbonate is used while a pigment having a color other than white is used. In this case, it is because there is an effect that the color by the pigment appears more vivid.

As such, when a mixture of calcium carbonate and one or more other fillers other than this is used, the one or more other fillers included in a total of 50 to 150 parts by weight with respect to 100 parts by weight of calcium carbonate improves visibility, imparts a vivid color, and It is effective for strength improvement.

On the other hand, another embodiment of the present invention relates to a construction method of a coating composition for a fusion-type road surface marker, the construction method comprising: a pretreatment step of arranging and flattening foreign matter on a road surface to which a coating film for road surface coating is applied; A coating composition preparation step of preparing a coating composition for fusion-type road surface marking according to an embodiment of the present invention described above; A coating step of heating and melting the fusion-type road surface coating material composition in a temperature range of 150 to 180 ° C. for 25 to 40 minutes, and then applying it to a road surface that has undergone a pretreatment step; And a drying step of drying the applied fusion-type road sign coating composition.

First, the pre-treatment step is a step of flattening a road surface to which a coating film for road surface coating is to be applied. In this step, a foreign material on the road surface is removed, and when the bottom surface is poor, a repair is performed using a repair agent. By passing through such a pre-treatment step, it is possible to prevent a defect in the coating film due to a foreign material or irregularities on the road surface.

Next, the step of preparing a coating composition is a step of preparing a coating composition for a fusion-type road surface according to an embodiment of the present invention, 8 to 23% by weight of petroleum resin, 1 to 5% by weight of wax, and 15 to 31 reflectors. It is a step of preparing a powdery coating composition comprising weight%, pigment 2-25% by weight modifier 1-4% by weight, and filler 40-68% by weight.

This step may be performed by separately preparing a solid petroleum resin, wax, reflector, pigment, modifier, and filler, and mixing at room temperature.

At this time, each component constituting the coating composition for the fusion-type road surface marker may be pulverized and prepared beforehand to have a predetermined particle size before mixing, or mixed and then pulverized after mixing to adjust each component to have a similar particle size.

Next, the prepared fusing type road surface coating material composition is melted by heating and melting in a temperature range of 150 to 180 ° C. for 25 to 40 minutes, followed by a coating step applied to the rough surface after the pretreatment step.

The coating composition for fusing-type road markings of the present invention has high fluidity under the above-described heating conditions and can be uniformly mixed with each other. When the temperature is too low or the heating time is too short, an uneven mixture is formed and the properties of the coating film are formed. When the heating temperature is too high or the heating time is too long, the properties of the coating film may be deformed by excessive heat treatment, and the physical properties may be deteriorated. Since it may be possible, it is preferable to install it by heating and melting under the above-described conditions.

Finally, a drying step is performed to dry the coating composition for coating the fusion coated road surface, and drying may be performed at room temperature.

Hereinafter, specific actions and effects of the present invention will be described through an embodiment of the present invention. However, this is provided as a preferred example of the present invention, and the scope of the present invention is not limited according to embodiments.

[ Manufacturing example ]

C5 Petroleum resin, polyethylene wax, glass fiber and glass beads (particle size 400 ~ 800㎛), which are reflective materials, white pigment, modifier, calcium carbonate and dolomite, which are fillers, are prepared and mixed according to the weight ratios in Table 1 to fused road signs A coating composition was prepared.

At this time, as a modifier, 1 kg of SBS rubber, 1.65 kg of compound (Mz = 2700) of formula 1 and 0.35 kg of hydrogenated C5 resin (Mz = 2200) were mixed, heated at 200 ° C. for 3 hours, and then cooled to obtain the compound obtained. Used.

(weight%) Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 C5 oil balance 20.2 19.5 18.5 17.5 21.3 20.5 17.1 Polyethylene
Wax 2.0 2.0 2.0 2.0 2.0 2.0 2.0 Glass Fiber 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Glass Bead 20.0 20.0 20.0 20.0 20.0 20.0 20.0 White pigment 13.4 13.4 13.4 13.4 13.4 13.4 13.4 Modifier 1.1 1.8 2.8 3.8 - 0.8 4.2 Calcium carbonate 23.0 23.0 23.0 23.0 23.0 23.0 23.0 Dolomite 20.0 20.0 20.0 20.0 20.0 20.0 20.0 Sum 100.0 100.0 100.0 100.0 100.0 100.0 100.0

[ Experimental example  One]

Using each of the coating compositions for fusion-type road markings prepared in Preparation Examples, accelerated weather resistance and lubricated wear resistance according to KS M 6080: 2014 standards were measured, and the results are shown in Table 2.

Accelerated weathering test evaluation

After heating and melting the coating composition for each fusing type road surface cover prepared in Production Example at 150 ° C. for 30 minutes, using an applicator on an aluminum plate, coating the dried coating film to a thickness of 1.5 mm, 23 ° C., relative humidity The specimen was prepared by drying in 50% of shaded paper for one week. At this time, two specimens were prepared for each paint.

Thereafter, the accelerated weathering resistance of each specimen was evaluated through two test methods: UV aging test and Xenon arc aging test.

The accelerated weatherability according to the UV aging test is measured by using a colorimeter CM-2500c ^® (Minolta Konica) to measure the luminance rate of the specimen before aging, and the specimen is mounted on a UVB aging test type 2 (UVB-313) fluorescent UV lamp. After measuring the luminance rate after exposure for a period of time, it was determined using the difference in luminance rate (Δβ) before and after UV aging. At this time, UV exposure was performed by a cycle method of drying at 60 ± 2 ° C. for 8 hours, and condensing at 50 ± 2 ° C. for 4 hours.

The accelerated weatherability according to the xenon arc aging test measures the luminance rate of the specimen before aging, and uses the xenon arc aging tester to measure the luminance rate after exposure to a xenon arc lamp for 1,000 hours according to KS M ISO 4892-2. Then, it was judged using the difference in luminance ratio (Δβ) before and after aging. At this time, the exposure of the xenon clamp was performed by a cycle method of irradiating in a dry state for 102 minutes and irradiating in a water spray state for 18 minutes.

When the luminance ratio difference (Δβ) according to the UV aging test and the xenon arc aging test is 0.05 or less, it is determined that the accelerated weathering resistance is good.

Yoon Ha Jung Wear resistance  exam

Each fusion-type road surface coating material composition melted on a 200 × 400 × 50 mm asphalt block was painted and dried to form a coating film having a dry coating thickness of 2.5 ± 0.5 mm. Then, after rotating 2 million times at a speed of 60 km / h and a tire pressure of 0.25 MPa using a lubricated load resistance tester, the retroreflectivity of the surface was measured using a retroreflective luminance meter LTL-XL ^® (Delta).

Test Items Accelerated weathering test Youn-jung Yoon wear resistance test Δβ (UV) Δβ (Xenon arc) Retroreflectivity (mcd / m ² · lx) Early 1 million times 2 million times Example 1 0.029 0.032 403 575 429 Example 2 0.018 0.028 425 590 438 Example 3 0.010 0.021 448 616 453 Example 4 0.005 0.012 456 623 462 Comparative Example 1 0.097 0.096 88 192 103 Comparative Example 2 0.074 0.064 233 376 251 Comparative Example 3 0.002 0.010 477 646 485

Looking at the results of the accelerated weathering test in Table 2, in the case of Examples 1 to 4 and Comparative Example 3, the UV aging and xenon arc aging test results, the difference in luminance ratio (Δβ) before and after aging is only 0.05 or less as a reference value. No, it was found to be less than or equal to 0.035, which is better than the reference value, and it was confirmed that the decrease in luminance rate due to aging was negligible.

On the other hand, in the case of Comparative Example 1 and Comparative Example 2, the luminance ratio difference (Δβ) before and after aging was 0.064 to 0.097, which was higher than the reference value of 0.05, and it was confirmed that the luminance ratio decreases significantly with aging.

On the other hand, looking at the results of the abrasion resistance wear test in Table 2, in the case of Examples 1 to 4 and Comparative Example 3, the retroreflectivity based on 1 million times is 550 mcd / m ² · lx or more, and the reflexiveness based on 2 million times is 400 mcd / m ² While it can be confirmed that the wear resistance is excellent at lx or more, in the case of Comparative Example 1 and Comparative Example 2, the retroreflectivity at 1 million times is 400 mcd / m ² or less, and the reflexivity at 2 million times is 300 mcd / m ² Hereinafter, it was found to be significantly lower than in Example and Comparative Example 3, and when compared with Example and Comparative Example 3, it was confirmed that the wear resistance was significantly reduced.

These accelerated weathering test results and lubricated abrasion resistance test results are judged to appear according to the modifier content. As a result of the experiment, it was confirmed that at least 1% by weight or more of the modifier should be included in the entire coating composition in order to improve the accelerated weathering resistance and wear resistance.

[ Experimental example  2]

The same fusion-type road surface coating material composition as in Example 3 was prepared, but a modifier having a content of SBS rubber, a compound of Formula 1, and hydrogenated C5 resin used as a modifier was changed as shown in Table 3. Subsequently, after performing the same lubricating load wear resistance test as in Experimental Example 1 for each of the fusing type road surface coating composition, the results are shown in Table 4.

(Unit: parts by weight) SBS rubber Formula 1
Compound (A) Hydrogenated
C5 resin (B) (A) 100 parts by weight
The amount of (B) for Example 3 100 165 35 21.2 Example 5 100 175 27 15.4 Example 6 100 155 45 29.0 Comparative Example 4 100 175 26 14.9 Comparative Example 5 100 155 48 31.0 Comparative Example 6 100 200 - - Comparative Example 7 100 - 200 -

(Unit: mcd / m2 · lx) Early 1 million times 2 million times Example 3 448 616 453 Example 5 423 635 441 Example 6 485 672 466 Comparative Example 4 233 492 232 Comparative Example 5 217 466 256 Comparative Example 6 103 259 133 Comparative Example 7 96 182 103

Referring to the results of the retroreflectivity test in Table 4, in the case of Examples 3, 5, and 6, the retroreflectivity after rotating the tire 2 million times was about 450 mcd / m ² · lx, whereas Comparative Example 4 In the case of Comparative Example 7, it was confirmed that the examples exhibited high wear resistance of about twice as high as about 250 mcd / m ² · lx or less, compared to Comparative Examples.

In general, when the wear resistance test result shows a retroreflectivity of 300 mcd / m ² · lx or more, it can be judged to have excellent abrasion resistance. In the case of the examples of the present experiment, it shows a very high retroreflectivity of about 450 mcd / m ² · lx, which is remarkable. It is confirmed to have high abrasion resistance.

In addition, in Comparative Examples 6 and 7, it was confirmed that it exhibited a very low retroreflectivity of 150 mcd / m ² · lx or less. From these results, the SBS rubber reacted with the compound of Formula 1 and the hydrogenated C5 resin as a modifier. When using the obtained compound, it can be confirmed that the abrasion resistance can be improved.

Particularly, when 15 to 30 parts by weight of the hydrogenated C5 resin is contained with respect to 100 parts by weight of the compound of Formula 1, abrasion resistance is remarkably improved. It was found that the C5 resin hydrogenated with respect to 100 parts by weight of the compound of Formula 1 reacting with SBS rubber is preferably used in an amount of 15 to 30 parts by weight.

The present invention is not limited to the specific embodiments and descriptions described above, and various modifications can be carried out by anyone having ordinary knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. And such modifications are within the protection scope of the present invention.

Claims (7)

Petroleum resin 8 ~ 23 wt%, wax 1 ~ 5 wt%, reflector 15 ~ 31 wt%, pigment 2 ~ 25 wt% modifier 1 ~ 4 wt%, and filler 40 ~ 68 wt%,
The modifier is a compound obtained by reacting 160 to 250 parts by weight of a polymer resin based on 100 parts by weight of SBS rubber at a reaction temperature of 180 to 250 ° C,
The polymer resin is a mixture of 15 to 30 parts by weight of a hydrogenated C5 resin based on 100 parts by weight of a compound having a z average molecular weight of 13,000 to 170,000 composed of repeating units of styrene-indene-styrene of Chemical Formula 1 below. A coating composition for fusion-type road surface marking.
[Formula 1]

(However, in Formula 1, n is an integer) According to claim 1,
The petroleum resin, characterized in that it comprises at least one or more C5 resin selected from the group consisting of piperylene, isoprene, cyclopentadiene, dicyclopentadiene and 2-methyl-2-butene, fusion-type road sign For coating composition. According to claim 1,
The reflective material, characterized in that it comprises at least one or more of glass fiber, glass beads and glass powder, a coating composition for a fusion-type road sign. delete delete According to claim 1,
The filler is characterized in that it comprises at least one or more selected from the group consisting of calcium carbonate, dolomite, silica, talc, magnesium carbonate, barium sulfate, titanium, clay, kaolin, mica, diatomaceous earth, and silica-based minerals , Coating composition for fusing type road sign. A pre-treatment step of arranging and flattening foreign matter on the road surface to which the road surface coating film is to be applied;
A coating composition preparation step of preparing the coating composition for fusing type road marking according to any one of claims 1 to 3 and 6;
A coating step of heating and melting the fusion-type road surface coating material composition in a temperature range of 150 to 180 ° C. for 25 to 40 minutes, and then applying it to a road surface that has undergone a pretreatment step; And
Drying step of drying the coated coating composition for a fusion coated road surface; comprising, construction method of a coating composition for a fusion coated road surface.