KR102570764B1 - Phosphorescent resin composition for road sign and road sign using the same - Google Patents

Abstract

The present invention is a photoluminescent particle; anti-skid particles; and a protective resin solution to protect the photoluminescent particles and anti-slip particles. The protective resin solution includes a main agent and a curing agent, wherein the main agent includes: a first subject including an acrylic compound and a polymerization initiator; A second subject comprising an ester raw material; leveling agent; curing accelerator; And a phosphorescent resin composition for road markings comprising a solvent is disclosed.

Description

Photoluminescent resin composition for road marking and road marking using the same {PHOSPHORESCENT RESIN COMPOSITION FOR ROAD SIGN AND ROAD SIGN USING THE SAME}

The present invention relates to a photoluminescent resin composition for road signs and a road sign using the same, and more particularly, includes photoluminescent particles that emit light by themselves at night by emitting sunlight, which has excellent design and visibility, construction and maintenance. It relates to a photoluminescent resin composition for road markings capable of reducing costs and preventing slipping, and road markings using the same.

In general, road signs are constructed (installed) for guidance or design on roads such as sidewalks including walkways in parks as well as roads. In recent years, jogging roads and bicycle-only roads have increased around rivers and residential areas in cities, and the use of these roads is mainly at dawn or at night, so they are exposed to the risk of safety accidents.

Accordingly, road signs emitting light for safety are mainly constructed on roads such as trails and bicycle roads. In most cases, a light emitting diode (LED) is used as a light source. In addition, as an energy source, electric energy or sunlight is used.

For example, Korean Utility Model Publication No. 20-2013-0001334, Korean Patent Registration No. 10-0850471, and Korean Patent Registration No. 10-1513585 suggest technologies related to the above. 1 is a photograph showing a road applying light emitting diodes (LED) using electrical energy, and FIG. 2 is a photograph showing a block road applying light emitting diodes (LED) using sunlight.

However, road signs using light emitting diodes (LEDs) have the following problems, for example.

First, due to the price of the light emitting diode (LED) product itself and the use of power supply facilities or electrical wiring for supplying power to the light emitting diode (LED), initial construction (installation) costs are high. In addition, due to the occurrence of defects due to moisture, maintenance costs are required, and it is difficult to install on roads where power cannot be supplied, and application is limited.

Therefore, the present invention is a photoluminescent resin composition for road signs that can reduce construction and maintenance costs, etc. with excellent design and visibility by using photoluminescent particles that emit light by themselves at night by photoluminescent sunlight, and a road using the same Its purpose is to provide a cover.

In addition, the present invention is a phosphorescent resin composition for road markings in which letters or patterns realized from the luminescent color of the phosphorescent particles are clearly visible through sedimentation and concentration of the phosphorescent particles, and mechanical properties such as durability and abrasion resistance are excellent, and a road using the same Its purpose is to provide a cover.

In addition, the present invention is to provide a photoluminescent resin composition for road marking and a road sign using the same, which can form a uniform embossed pattern on the upper surface when applied to a road by allowing anti-slip particles to float upward in the mixed solution when mixed There is a purpose.

On the other hand, the technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems that are not mentioned will become clear to those skilled in the art from the description below. You will be able to understand.

In order to achieve the above object, the present invention,

photoluminescent particles;

anti-skid particles; and

a protective resin solution that protects the photoluminescent particles and anti-slip particles; including,

The protective resin solution,

Including a subject and a curing agent,

The subject is

A first subject comprising an acrylic compound and a polymerization initiator;

A second subject comprising an ester raw material;

leveling agent;

curing accelerator; and

A photoluminescent resin composition for road markings characterized in that it contains a solvent is provided.

According to the present invention, including photoluminescent particles that emit light by themselves at night by emitting sunlight, they have excellent design and visibility, and can reduce construction and maintenance costs.

In addition, according to the present invention, letters or patterns realized from the light emission color of the photoluminescent particles are clear, and mechanical properties such as durability and wear resistance are excellent.

In addition, according to the present invention, it has the effect of increasing the frictional force of the surface through the anti-slip particles.

In addition, according to the present invention, it is possible to paint a high-brightness rain-type lane by using a high-brightness rain-type bead whose visibility is 60 to 80% higher than that of a general bead. It is not possible to prevent the fading of lane visibility by temporary means. However, our development products can mitigate the fading of visibility due to the coating effect. In addition, the phosphorescent pigment can replace the effect of road markers.

On the other hand, the effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

1 is a road sign according to the prior art, which is a photograph showing a road to which a light emitting diode (LED) using electric energy is applied.
Figure 2 is a road sign according to the prior art, a photograph showing a block road to which a light emitting diode (LED) using sunlight is applied.
3 is a perspective view and a partially enlarged view showing a road sign according to an embodiment of the present invention.
4 is a perspective view and a partially enlarged view showing a road sign according to another embodiment of the present invention.
5 is a photograph showing a road sign constructed according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following examples. This embodiment is provided to more completely explain the present invention to those skilled in the art. Accordingly, the shapes of elements in the figures are exaggerated to emphasize clearer description.

The composition of the present invention for clarifying the solution to the problem to be solved by the present invention will be described in detail with reference to the accompanying drawings based on a preferred embodiment of the present invention, but the same reference numerals are assigned to the components of the drawings. For components, even if they are on other drawings, the same reference numerals have been given, and it is made clear in advance that components of other drawings can be cited if necessary in the description of the drawings.

3 shows a cut perspective view and a partially enlarged view of a road sign according to an embodiment of the present invention. 4 shows a cut perspective view and a partially enlarged view of a road sign according to another embodiment of the present invention.

Referring to FIG. 3 , the road sign according to the present invention includes a base paint layer 20 formed on a road base 10 and a phosphorescent resin layer 30 formed on the base paint layer 20 . Optionally, an elastic paving material 40 formed between the road base 10 and the ground paint layer 20 may be further included.

In the present invention, a "road sign" is constructed (installed) on a road surface for guidance and/or implementation of design, which is, for example, a lane for informing a vehicle's driving route and a designated speed for a vehicle. Signs, signs to inform the progress/walking direction of cars or people, various signs (warning signs) for safety, advertisements for advertisements, designs for creating a design space with the surrounding landscape, and other visibility Includes various displays for

In addition, the road sign according to the present invention may include a display unit (letters or patterns) such as letters, numbers, symbols, and/or figures. Specifically, among the base paint layer 20 and the phosphorescent resin layer 30, at least the phosphorescent resin layer 30 may be implemented with one or more characters or patterns selected from letters, numbers, symbols, and figures.

3 and 4 illustrate the implementation of the letter “P”, in FIG. 3, only the phosphorescent resin layer 30 is implemented in the shape of the letter “P”, and in FIG. 4, the base paint layer 20 and the phosphorescent light Both of the resin layers 30 are shown implemented in the shape of the letter "P".

The road base 10 is a road surface of a road, and is not particularly limited as long as it provides a surface for forming the base paint layer 20. The road base 10 may be selected from, for example, a concrete road surface and/or an asphalt road surface.

The ground paint layer 20 is formed by coating (applying) a paint on the road base 10, which is, for example, colored. The ground paint layer 20 provides the ground color of the photoluminescent resin layer 30 . The color of the base paint layer 20 is selected according to the light emission color of the phosphorescent resin layer 30, and it is good if it can clearly implement the color emitted from the phosphorescent resin layer 30.

The base paint layer 20 may be formed, for example, by coating a color paint that is widely used commercially. At this time, the color paint includes a color pigment, but the color pigment preferably has a different color from the emission color of the photoluminescent resin layer 30 . The color pigment may be selected from, for example, white, yellow, green, red, and blue depending on the light emission color of the photoluminescent resin layer 30 . In one example, when the emission color of the photoluminescent resin layer 30 is green, the color pigment of the base paint layer 20 may be selected from white or yellow.

The photoluminescent resin layer 30 is formed by coating and curing (drying) a photoluminescent resin composition on the base paint layer 20 . The photoluminescent resin layer 30 includes at least photoluminescent particles, anti-slip particles, high brightness particles, and a protective resin. That is, the photoluminescent resin composition includes photoluminescent particles, anti-slip particles, high brightness particles, and a protective resin.

Here, with respect to 100 parts by weight of the photoluminescent resin layer 30, 30 parts by weight of photoluminescent particles, 4 parts by weight of anti-slip particles, 6 parts by weight of high brightness particles, and 60 parts by weight of protective resin may be included.

The photoluminescent particles are particulate photoluminescent materials, which are not particularly limited as long as they can emit sunlight by themselves during the daytime or when light is blocked. In addition, the emission color of the photoluminescent particles is not limited. The photoluminescent particles may be selected from, for example, photoluminescent pigments that emit colors such as yellow, green, red, blue and/or purple.

The photoluminescent pigment may be selected from, for example, metal-based, oxide-based, sulfide-based, and/or phosphorus-based compounds, and specific examples include strontium oxide, aluminum oxide, and dysprosium oxide. Oxide), europium oxide, calcium oxide, silicon oxide, calcium sulfide, calcium sulfate, europium and thulium, etc. It may be one or a mixture of two or more selected from these. In addition, the photoluminescent pigment is a commercialized product, for example, NRH, NRP and / or NRPO series products (Korea, NRH-7100, NRH-7100C, NRH-7100D, NRH-7200 manufactured by FMC Co., Ltd., Baekhak-myeon, Baekhak-myeon, Gyeonggi-do, Korea) , NRH-7040BG, NRP-7040YG, NRPO-8C, NRPO-8D, etc.) may be used, and these may be preferably used in the present invention due to their high illuminance and high afterglow time.

In addition, the photoluminescent particles may have an average particle size of, for example, 0.2 to 150 μm, for example, 5 to 80 μm, in consideration of luminescence and mixing properties. Preferably, it may have an average particle size of 10 to 50 μm.

In addition, the photoluminescent particles may have a specific gravity [g/cm 3 ] of 2 to 6, although they may vary according to their type and/or particle size. The photoluminescent particles preferably have an average particle size of 10 to 50 μm and a specific gravity of 3 to 5, more preferably an average particle size of 20 to 40 μm and a specific gravity of 3.5 to 4.5.

This will be described later.

The anti-slip particles may have an average particle size of 250 μm to 300 μm and a specific gravity [g/cm 3 ] of 0.9 to 1. That is, the anti-slip particles may have a larger particle size than the photoluminescent particles and a smaller specific gravity than the photoluminescent particles. In addition, the anti-slip particles have a smaller specific gravity than that of the protective resin.

Accordingly, the anti-slip particles can float upward when mixed with the protective resin, and can form a uniform embossed pattern on the upper surface of the photoluminescent resin layer 30 when cured after being applied to the road.

On the other hand, the anti-slip particles may be composed of polyethylene (PE).

The high luminance particles may be composed of particles having a retroreflectivity of 600 or more.

Here, the high-luminance particles may reflect light to improve visibility. The high-brightness particles may be, for example, metal particles such as aluminum and titanium; oxide particles such as aluminum oxide, titanium oxide and silicon oxide; and/or glass particles, etc., and may have an average particle size of, for example, 5 μm to 150 μm, or 20 μm to 40 μm.

On the other hand, the high-brightness particles have a smaller specific gravity than the photoluminescent particles, and preferably have a higher specific gravity (eg, 1 to 2 [g/cm 3 ]) than the anti-slip particles.

Here, retroreflection refers to reflection in which light from a light source is reflected from the surface of an object and returns to the light source, and when light is shined on a retroreflective material at any angle, the light is reflected back in the direction of the light source.

The protective resin may have a function of protecting the photoluminescent particles from contamination or external force as well as a function of a binder that binds the photoluminescent particles, anti-slip particles, and high-brightness particles as described above. The protective resin may be selected from, for example, transparent adhesive resins, and specific examples may be selected from acrylic resins, epoxy resins, urethane resins, and/or olefin resins.

As shown in FIGS. 3 and 4 according to a preferred embodiment, the photoluminescent resin layer 30 includes a photoluminescent particle layer 32 formed on the base paint layer 20 and a photoluminescent particle layer 32 formed on the photoluminescent particle layer 32 . It is preferable to include a surface layer (34).

Specifically, a photoluminescent particle layer 32 in which photoluminescent particles are densely formed is formed on top of the base paint layer 20, and a surface layer 34 containing anti-slip particles, high brightness particles, and a protective resin as main components is formed on the top of the photoluminescent particle layer 32. ) is preferably formed.

In this case, the surface layer 34 may have a color reflecting light received from an external light source, preferably on a transparent base.

In the case of having the above laminated structure, since the photoluminescent particles are concentrated in the photoluminescent particle layer 32, the visibility implemented from the photoluminescent resin layer 30 is effectively improved compared to the same amount of photoluminescent particles. That is, the character "P" shown in Figs. 3 and 4 is clearly implemented. In addition, the surface layer 34 is formed on the upper part of the photoluminescent particle layer 32 to effectively protect the photoluminescent particles from contamination or external force, thereby improving visibility and effectively preventing the photoluminescent particles from being separated.

In addition, non-slip particles and high-brightness particles are concentrated in the surface layer 34, which can cause anti-slip and anti-noise effects, as well as enhancement of retroreflectivity.

The photoluminescent resin layer 30 is formed from the photoluminescent resin composition of the present invention described below according to a preferred embodiment. The photoluminescent resin composition of the present invention described below has excellent mechanical properties such as durability, abrasion resistance and/or toughness, and is suitable for the photoluminescent resin layer 30 because it has a self-cleaning function. In addition, it has excellent light transmittance (transparency) as well as adhesiveness.

The photoluminescent resin composition according to the present invention includes photoluminescent particles, anti-slip particles, high brightness particles, and a protective resin solution for protecting the photoluminescent particles. The photoluminescent particles, non-slip particles, and high luminance particles are as described above. The protective resin liquid is liquid and contains a main agent and a curing agent. At this time, the protective resin liquid may include the main agent and the curing agent in a weight ratio of 2 to 5: 0.5 to 2.

The base material is liquid, and includes a first base material, a second base material, a leveling agent, a hardening accelerator, and a solvent.

The first subject includes an acrylic compound and a polymerization initiator for acrylic polymerization, and may optionally further include a solvent. As the acrylic compound, one or more selected from acrylic monomers and acrylic oligomers may be used. The acrylic compound may be included in, for example, 40 to 80% by weight based on the total weight of the first main material.

The acrylic compound, for example, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, butyl acrylate, N-butyl methacrylate, t-butyl methacrylate, Laulic Methacrylate, 2-hexylethyl methacrylate, caprolactone acrylate, 1,4-butanediol dimethacrylate, 1,6-hexanediol dimethacrylate, neopentyl glycol dimethacrylate, polyethylene glycol dimethaacrylate At least one selected from acrylates, neopentyl glycol adipate dimethacrylates, and modified acrylates thereof and the like may be used. In one example, the acrylic compound is methyl methacrylate, butyl acrylate, N-butyl methacrylate, laulic methacrylate, 2-hexylethyl methacrylate and caprolactone acrylate by weight of the first main agent Each may be mixed and used in an appropriate amount within the range of 2 to 30% by weight.

The polymerization initiator may be selected from, for example, peroxides, and for example, at least one selected from ditertiary butyl peroxide and benzoyl peroxide may be used. The polymerization initiator may be included in, for example, 0.5 to 5% by weight based on the total weight of the first main material. In addition, the first subject matter further includes a solvent, but the solvent may be included in an amount of, for example, 15 to 55% by weight based on the total weight of the first subject matter.

The second subject matter includes at least an ester raw material, which may optionally further include a reaction accelerator, a solvent, and/or other additives. The ester raw material is not particularly limited as long as it can produce polyester by polymerization, and may include, for example, one or more selected from glycols, diols, polyols, and polyacids.

The ester raw material, for example, 1,2-cyclohexanedimethanol, 1,3-cyclohexanedimethanol, 1,2-cyclohexanediol, 1,3-cyclohexanediol, 1,4-cyclohexanediol , 1,2-propanediol, 1,6-hexanediol, neopentylglycol, trimethanolpropane, polycaprolactonepolyol and terephthalic acid, phthalic acid, isophthalic acid, phthalic anhydride, maleic acid, maleic anhydride, malonic acid, fumaric acid, succinic acid, succinic anhydride, glutaric acid, adipic acid and 2-methyl-1,6-hexanoic acid, and the like. In one example, the ester raw material is mixed with neopentyl glycol, trimethanol propane, 1,6-hexanediol, polycaprolactone polyol, and adipic acid in an appropriate amount within the range of 2 to 30% by weight, respectively, based on the total weight of the second main agent. and can be used.

In addition, the second subject may include 45 to 80% by weight of the ester raw material based on the total weight. In addition, the second subject may include 0.01 to 0.1 wt% of the reaction accelerator and 15 to 50 wt% of the solvent based on the total weight, and may additionally include 0.2 to 10 wt% of other additives such as dehydration by-products. .

The reaction accelerator may be one capable of accelerating esterification, and may be selected from, for example, metal compounds and the like. As the reaction accelerator, for example, a tin-based and/or nickel-based compound may be used, and as a commercialized product, for example, FASCAT 4100 may be used.

The leveling agent is not particularly limited as long as it can improve surface smoothness of the photoluminescent resin layer 30 . The leveling agent may be selected from, for example, silicon-based and/or fluorine-based compounds, and the like, and for example, polydimethylsiloxane and the like may be used. In addition, the leveling agent is a commercially available product, BYK-300, BYK-310, BYK-315, BYK-313, BYK-320, BYK-322, BYK-325, BYK-330, BYK-355, BYK-370 and /or BYK-375 or the like can be used.

The curing accelerator is not particularly limited as long as it can accelerate the curing of the subject, and is, for example, organotin compounds such as dibutyltin dilaurate, imidazole and imidazole derivatives, tertiary amines such as triethylamine, and / or acid anhydride compounds and the like.

Further, in the present invention, the solvent may be selected from aliphatic and/or aromatic hydrocarbon-based compounds, which may be selected from, for example, alcohols, ketones, and/or aromatics. The solvent may be, for example, at least one selected from isobutyl alcohol, methyl ethyl ketone, methyl isobutyl ketone, propylene glycol monomethyl ether acetic acid, toluene, and xylene.

According to the present invention, the protective resin liquid is mainly composed of the above components to improve adhesion, mechanical properties such as durability, abrasion resistance and / or toughness of the photoluminescent resin layer 30. In addition, it has excellent light transmittance (transparency) together with a self-cleaning function. In addition, the subject may be cured (dried) at room temperature by mixing a curing agent, for example, within 12 to 24 hours.

The subject may be composed of each of the above ingredients in an appropriate amount. According to one embodiment, the main agent includes 20 to 40 parts by weight of the second agent, 0.1 to 2 parts by weight of a leveling agent, 0.5 to 5 parts by weight of a hardening accelerator, and 50 to 200 parts by weight of a solvent based on 100 parts by weight of the first agent. do. At this time, when the content of the second subject matter is less than 20 parts by weight with respect to 100 parts by weight of the first subject matter, for example, mechanical properties such as durability, abrasion resistance and / or toughness may be insignificant, and if it exceeds 40 parts by weight, relatively limited As the content of one main agent is lowered, for example, adhesiveness may be insignificant.

In addition, when the amount of the leveling agent is less than 0.1 parts by weight, the surface smoothness improvement effect of the photoluminescent resin layer 30 may be insignificant, and when the amount of the curing accelerator is less than 0.5 parts by weight, the curing accelerator function may be weakened. And when the content of the leveling agent and the hardening accelerator is greater than the above range, for example, light transmittance (transparency) may be lowered.

In addition, the solvent is used within the above range in consideration of the dispersibility and coating properties of the photoluminescent particles. Additionally, the main agent may further include other additives, such as a heat stabilizer, an ultraviolet stabilizer, and/or an antioxidant, and these may be used in an amount of 0.001 to 5 parts by weight, respectively, based on 100 parts by weight of the first main agent. .

The curing agent is not limited as long as it can cure the main material, and for example, an isocyanate-based compound may be used. As the curing agent, for example, a diisocyanate-based trimer resin may be used. In addition, the curing agent may be formulated as a liquid, and in this case, the curing agent may include 10 to 50 parts by weight of a solvent based on 100 parts by weight of a curing agent such as an isocyanate compound.

The protective resin liquid includes the above subject and a curing agent, but preferably has a viscosity of 50 cps to 100 cps. Specifically, according to a preferred embodiment of the present invention, the specific gravity [g/cm 3 ] of the photoluminescent particles is 3 to 5 as described above, and the viscosity of the protective resin solution is preferably 30 cps to 120 cps.

According to a preferred embodiment of the present invention, when the viscosity of the protective resin liquid and the specific gravity of the photoluminescent particles are each adjusted within the above ranges, for example, uniform dispersibility of the photoluminescent particles is achieved, which is particularly important for the photoluminescent resin layer (30 ) Visibility implemented from can be effectively improved. That is, the photoluminescent particles can be concentrated in the photoluminescent particle layer 32 as shown in FIGS. 3 and 4 due to the easy sedimentation of the photoluminescent particles in the protective resin liquid. Accordingly, letters or patterns formed by the photoluminescent particle layer 32 are clearly implemented through light emission, and visibility is improved. In addition, due to the difference in specific gravity of the anti-skid particles and high-brightness particles, the anti-slip particles float on the uppermost surface to form a uniform embossed pattern, and the high-brightness particles are located at the bottom of the anti-slip particles to cause retroreflection. there is.

Specifically, when considering the curing time of the protective resin solution after coating the photoluminescent resin composition on the base paint layer 20, when the viscosity of the protective resin solution is high and the specific gravity of the photoluminescent particles is low, the photoluminescent particles settle down. Due to the low speed, it may be difficult to concentrate the photoluminescent particles in the photoluminescent particle layer 32 . That is, the photoluminescent particles can be cured before sinking down. In addition, when the viscosity of the protective resin liquid is high and the specific gravity of the anti-skid particles and the high-brightness particles is high, the floating speed of the anti-skid particles and the high-brightness particles decreases, making it difficult for the anti-slip particles and the high-brightness particles to be concentrated on the surface layer 34. there is. That is, the non-slip particles and high-brightness particles may be cured before floating to the top.

In addition, when the viscosity of the protective resin solution is too low and the specific gravity of the photoluminescent particles is too large, the initial dispersibility of the photoluminescent particles, anti-slip particles, and high brightness particles is poor during preparation of the photoluminescent resin composition. That is, when mixing the photoluminescent particles and the protective resin solution in the mixing container, the photoluminescent particles sink to the bottom of the mixing container due to low viscosity and high specific gravity, and the non-slip particles and high brightness particles all float to the surface, resulting in poor initial dispersibility. . In addition, in this case, it may be difficult to form the photoluminescent particle layer 32 and the surface layer 34 of a uniform thickness over the entire area of the photoluminescent resin layer 30 .

Therefore, when the photoluminescent particles are selected from those having a specific gravity in the range of 3 to 5 and the viscosity of the protective resin solution is adjusted within the range of 30cps to 120cps, the photoluminescent particles are precipitated and deposited in the photoluminescent particle layer 32 before the protective resin solution is cured. It is possible to form the photoluminescent particle layer 32 of a dense and uniform thickness layer. Considering these points, it is more preferable that the photoluminescent particles have an average particle size of 20 μm to 40 μm and a specific gravity of 3.5 to 4.5, and the protective resin liquid has a viscosity of 50 cps to 100 cps.

In addition, in order to effectively form the surface layer 34, the anti-slip particles have an average particle size of 250 μm to 300 μm and a specific gravity [g / cm 3] of 0.9 to 1, and the high brightness particles have a specific gravity [g / cm 3] of 1 to 2 ] is preferred.

In the present invention, the viscosity is a value measured at room temperature, which may be, for example, a value measured at a temperature of 10 °C to 35 °C, more specifically, for example, a temperature of 20 °C to 25 °C.

According to one embodiment, the photoluminescent resin composition may include 5 to 80 parts by weight of the photoluminescent particles based on 100 parts by weight of the protective resin solution in consideration of visibility and adhesiveness of the photoluminescent particles. And the anti-slip particles may be included in an amount of, for example, 0.5 to 10 parts by weight, based on 100 parts by weight of the protective resin solution.

And the high-brightness particles may be included in an amount of, for example, 0.5 to 10 parts by weight based on 100 parts by weight of the protective resin solution.

Meanwhile, in the present invention, the elastic pavement 40 is selectively formed between the road base 10 and the base paint layer 20 according to the type of road, and is not particularly limited as long as it has elasticity. The elastic packaging material 40 may be selected from, for example, a synthetic resin foam sheet, a rubber sheet, and/or an elastic chip sheet in the form of a sheet.

In addition, the synthetic resin foam sheet may have, for example, polyurethane (PU), polyethylene (PE), and/or polypropylene (PP) as a main component, and the elastic chip sheet may include, for example, rubber chips and / or synthetic resin foam chips and the like may be included.

According to the present invention described above, in promoting guidance or design of road signs, it is promoted through the phosphorescent resin layer 30 that can easily implement various patterns of letters or patterns, so that conventional light emitting diodes (LEDs) It is easier to install and can reduce installation costs as well as maintenance costs. In addition, the phosphorescent resin layer 30 is based on the base paint layer 20, but has excellent visibility due to the dense phosphorescent particles, and can also serve as an auxiliary light due to high emission luminance. In addition, it has excellent mechanical properties.

Examples of the present invention are exemplified below. The following examples are merely provided as examples to aid understanding of the present invention, and the technical scope of the present invention is not limited thereby.

[Example]

<Photoluminescent resin composition>

First, the first and second subjects were prepared with the ingredients and contents shown in [Table 1], then 32 parts by weight of the second subject, 0.8 parts by weight of a leveling agent, and curing based on 100 parts by weight of the first subject. A main agent was prepared by including 1.2 parts by weight of an accelerator and 95 parts by weight of a solvent. In addition, a curing agent is prepared by mixing 35 parts by weight of a solvent with respect to 100 parts by weight of the non-yellowing trimer resin, and then the main agent and the curing agent are mixed in a weight ratio of 4: 1 to obtain a transparent resin having a viscosity of about 72 cps (at 25 ° C.) liquid was prepared.

Next, photoluminescent particles and anti-slip particles and high-brightness particles were added to the transparent resin solution and stirred. At this time, the photoluminescent particles were a product emitting green light (Korea, NRH-7100C manufactured by FMC Co., Ltd., Baekhak-myeon, Baekhak-myeon, Gyeonggi-do), and used those having an average particle size of about 25 μm and a specific gravity of about 4.1.

< Road sign >

After bonding and fixing an elastic paving material (rubber chip) on the asphalt, a white paint was applied and dried on the elastic paving material to form a base paint layer. Thereafter, the photoluminescent resin composition was coated on the white paint layer, but immediately after mixing the curing agent, it was coated in the shape of a letter, and then cured (dried) at room temperature for about 15 hours.

division
ingredient content
(weight%) subject Topic 1 acryl
Raw material Methyl methacrylate (MMA) 21.20
Butyl Acrylate (BAM) 6.85
N-butyl methacrylate (N-BMA) 5.84 Laulic methacrylate (LMA) 5.48 2-hexylethyl methacrylate (2-HEMA) 8.92 Caprolactone acrylate (M-M100) 8.92 polymerization initiator Dietary Butyl Peroxide DTBPO 1.52
Benzoyl Peroxide-75%BPO75% 1.68
solvent Methyl isobutyl ketone (MIBK) 27.10
Propylene glycol monomethyl ether acetic acid (PMA) 12.49



2nd subject ester raw material Neopentylglycol (NPG) 9.51
Trimethanol Propane (TMP) 6.38
1,6-hexanediol (1,6HG) 5.53 Polycaprolactone polyol (P220N) 16.18 adipic acid 21.24 reaction accelerator Tin system (FASCAT 4100) 0.03
solvent Methyl isobutyl ketone (MIBK) 41.13 leveling agent Silicon type (BYK-355) hardening accelerator Tin-based (M-713 sol.) solvent Methyl isobutyl ketone (MIBK) Xylene curing agent cured resin Non-yellowing trimer resin (Desmodur N75) solvent Butyl Acetate (BAc)

The above detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and describe preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications are possible within the scope of the concept of the invention disclosed in this specification, within the scope equivalent to the written disclosure and / or within the scope of skill or knowledge in the art. The written embodiment describes the best state for implementing the technical idea of the present invention, and various changes required in the specific application field and use of the present invention are also possible. Therefore, the above detailed description of the invention is not intended to limit the invention to the disclosed embodiments. Also, the appended claims should be construed to cover other embodiments as well.

10: road base 20: base paint layer
30: photoluminescent resin layer 32: photoluminescent particle layer
34: protective resin layer 40: elastic packaging material

Claims (8)

30 parts by weight of photoluminescent particles;
4 parts by weight of anti-skid particles;
6 parts by weight of high brightness particles; and
60 parts by weight of a protective resin solution for protecting the photoluminescent particles, the anti-slip particles, and the high-brightness particles; Including,
The anti-slip particles have an average particle size of 250 μm to 300 μm and a specific gravity of 0.9 g/cm 3 to 1 g/cm 3 , and have a larger particle size than the photoluminescent particles, and the photoluminescent particles, the high brightness particles, and the protective resin. It has a smaller specific gravity than the liquid, so when mixed with the protective resin, it can float to the top,
The high-brightness particles have a retroreflectivity of 600 or more, include metal particles including aluminum and titanium, oxide particles including aluminum oxide, titanium oxide, and silicon oxide, glass particles, and combinations thereof, and have a thickness of 5 μm to 150 μm. μm, or has an average particle size of 20 μm to 40 μm, and has a smaller specific gravity than the photoluminescent particles,
Due to the difference in specific gravity between the anti-skid particles and the high-brightness particles, the anti-skid particles float on the uppermost surface to form a uniform embossed pattern, and the high-brightness particles are located below the anti-skid particles to cause retroreflection,
The protective resin solution includes a main agent and a curing agent,
The main agent is a phosphorescent resin composition for road marking, characterized in that it includes a first agent containing an acrylic compound and a polymerization initiator, a second agent containing an ester raw material, a leveling agent, a curing accelerator and a solvent.
delete According to claim 1,
The main agent is a road sign characterized in that it comprises 20 to 40 parts by weight of the second subject matter, 0.1 to 2 parts by weight of a leveling agent, 0.5 to 5 parts by weight of a hardening accelerator and 50 to 200 parts by weight of a solvent based on 100 parts by weight of the first subject matter. A phosphorescent resin composition for use.
According to claim 1,
The photoluminescent particles have a specific gravity of 3 to 5,
The protective resin liquid is a phosphorescent resin composition for road marking, characterized in that it has a viscosity of 30cps to 120cps.
According to claim 1,
The photoluminescent particles have an average particle size of 20 μm to 40 μm and a specific gravity of 3.5 to 4.5,
The protective resin liquid is a phosphorescent resin composition for road marking, characterized in that it has a viscosity of 50cps to 100cps.
According to claim 1,
The non-slip particles are a phosphorescent resin composition for road marking composed of polyethylene (PE).
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