KR20160039866A - A Composition Comprising Phosphorescent pigment For Road Marking - Google Patents
A Composition Comprising Phosphorescent pigment For Road Marking Download PDFInfo
- Publication number
- KR20160039866A KR20160039866A KR1020140133119A KR20140133119A KR20160039866A KR 20160039866 A KR20160039866 A KR 20160039866A KR 1020140133119 A KR1020140133119 A KR 1020140133119A KR 20140133119 A KR20140133119 A KR 20140133119A KR 20160039866 A KR20160039866 A KR 20160039866A
- Authority
- KR
- South Korea
- Prior art keywords
- parts
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- phosphorescent pigment
- methyl methacrylate
- road surface
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/69—Particle size larger than 1000 nm
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Road Signs Or Road Markings (AREA)
- Paints Or Removers (AREA)
Abstract
Description
The present invention relates to a coating composition for road surface display, and more particularly to a coating composition for road surface display comprising a phosphorescent function and a retroreflective function.
The development of transportation, especially the development and diffusion of cars, has resulted in more roads, more wider and more complicated developments, so that more roads are crossed and more information about the roads There is also a growing need to be communicated to drivers.
Information on such roads, that is, information on the destination of the speed limit and the direction of travel, may be directly applied on the road surface and displayed as a letter or a figure. The information on such road surface is mainly used for road marking paint And is displayed as a letter or a figure. The road marking paints used here have been developed and used in various kinds. In the special areas where roads, especially buses, children's protection areas, road slip prevention, slopes, In order to enhance the visibility of the driver, the road surface is painted in various forms.
Among these methods, there are room temperature type, heating type, and fusion type paint, and all of them can discriminate the lane only during the daytime, and the visibility is deteriorated immediately after sunset or at dusk. Especially at night, overcast day, On a rainy day, there is a higher risk of accident due to a lighter visibility at night.
As such, road signboards and lanes play a very important role in driving a car. Therefore, it is necessary to make it visible at night, which helps to prevent various safety accidents. However, Korea is a country where roads and crosswalks, It is a reality that there is a disadvantage that lane marking is not visible at night or in a rainy season by installing a road surface display by a melting method such as yellow or white. Therefore, at present, in order to make these various objects visible at night, it is possible to obtain a distinguishing effect by simply painting a luminous paint (phosphorescent pigment) or attaching a luminous tape to illuminate at night, but this method has a very small luminous effect There is a problem that the function is lost in a short time because the life is short.
Accordingly, as a coating composition for road surface display, a process of emitting light such that a coating film is visible for a predetermined time in a darkened state after receiving light of sunlight or an artificial light and accumulating it in a coating film is repeated for a long time, There is a demand for development of a composition having superior effect, high afterglow luminance and excellent weather resistance.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the related art, and has the following objectives.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a road surface display which includes an ultra-high-brightness phosphorescent material for improving the visibility of a driver for accurate display of roads and road surfaces, And to provide a coating composition for use therewith.
Another object of the present invention is to provide a coating composition for road surface display which is capable of producing various colors and designs and is an environmentally friendly product that further enhances the urban appearance.
The present invention relates to a paint composition for road surface display which is excellent in strength and durability using methyl methacrylate (MMA) or polymethylmethacrylate (PMMA) on the one hand, is easy to install by natural adhesion method and does not cause road breakage .
Another object of the present invention is to provide a coating composition for road surface display which has a freezing point of -60 degrees in winter and does not freeze even in snow,
In order to achieve the above object, the present invention is implemented by the following means.
The coating composition for road surface display comprising the phosphorescent function of the present invention can be obtained by copolymerizing methyl methacrylate (MMA) or polymethylmethacrylate (PMMA); Phosphorescent pigment; Salts of alkali metals; Calcium carbonate; And a glass bead.
The present invention relates to a resin composition comprising 80 to 95 parts by weight of methyl methacrylate (MMA) or polymethylmethacrylate (PMMA) 5 to 20 parts by weight of the phosphorescent pigment; The salt of the alkali metal is 5 to 20 parts by weight as a silicate; 5 to 20 parts by weight of the calcium carbonate; And 10 to 30 parts by weight of the glass beads.
The phosphorescent pigment of the present invention is characterized by being an aluminate-based light-accumulating phosphor of an alkaline earth metal, and the particle size of the glass beads is 0.03 to 3 mm.
The present invention has the following effects with the above-described configuration.
The present invention provides a coating composition for road surface indication that allows pedestrians and drivers to visually confirm lanes even at night, at night, and during rainy days, while using methyl methacrylate (MMA) or polymethyl methacrylate (PMMA) And is excellent in durability. It is easy to install by natural adhesion method construction and provides road surface paint composition free from road breakage. It has a freezing point of -60 degrees in winter, There is an effect of providing a coating composition for road surface display which is excellent in visibility by providing a lane.
The Applicant hereunder explains in detail the means for solving the foregoing problem. The detailed description of known technology, which is considered to be unnecessarily obscured by the gist of the present invention, will be omitted.
The coating composition for road surface display comprising the phosphorescent function of the present invention can be obtained by copolymerizing methyl methacrylate (MMA) or polymethylmethacrylate (PMMA); Phosphorescent pigment; Salts of alkali metals; Calcium carbonate; And glass beads, preferably 80 to 95 parts by weight of methyl methacrylate (MMA) or polymethyl methacrylate (PMMA); 5 to 20 parts by weight of the phosphorescent pigment; The salt of the alkali metal is 5 to 20 parts by weight as a silicate; 5 to 20 parts by weight of the calcium carbonate; And 10 to 30 parts by weight of the glass beads. Hereinafter, specific components and functions will be described.
methyl Methacrylate ( MMA ) or Poly methyl Methacrylate ( PMMA )
In the present invention, since the contact between the phosphorescent pigment and the light should be maximized in order to maximize the afterglow effect when the coating film is formed, methyl methacrylate (MMA) or polymethyl methacrylate (PMMA) Parts by weight. Polymethylmethacrylate (PMMA) was developed and developed in the 1930s. It has the longest history of existing resins and is the most transparent and weather-resistant.
Phosphorescent pigment
A phosphorescent pigment is a pigment that absorbs and accumulates light emitted from almost all light sources including sunlight, fluorescent light, incandescent light, and mercury light, and emits light slowly in a dark place and emits light. These phosphorescent pigments are one of the additives used in the production of plastics, ceramics, glass, fibers, inks and paints. They are used in transportation, aviation, ship, railway, construction, military, Fancy goods, watches, fishing gear, toys, stationery, etc.
The present invention uses an inorganic accelerating phosphor. (Ca, Sr) S: Bi (blue luminescence) and ZrS: Cu (yellow green luminescence). (Zn, Cd) S: Cu (red luminescence), and aluminate-based phosphorescent phosphors of an alkaline earth metal. However, since zinc sulfide has a short light-emitting time and a low light resistance in a place with high humidity, Was inadequate. To improve this, mixing the radioactive materials such as Pm can increase the luminescence duration, but there are significant restrictions on the use of radioactive materials.
Therefore, in the present invention, an aluminic-acid-based light-accumulating phosphor of an alkaline earth metal is used as the inorganic-accumulative fluorescent substance. The aluminic-acid-based light-absorbing phosphor of this alkaline earth metal is a compound represented by MAl 2 O 4 (M is at least one metal element selected from calcium, strontium and barium, or magnesium is added to the metal element) Europium is added as an activator to the metal element represented by M in an amount of 0.001 to 10 mol% based on the metal element represented by M and the cerium, praseodymium, neodymium, samarium, dysprosium, erbium, thulium, Is added in an amount of 0.001 to 10 mol% based on the metal element represented by M, and the sintered body is fired at a high temperature.
Preferably, SrAl 2 O 4 is used as the inorganic phosphorescent pigment of the present invention. The phosphorescent pigment has a spinel structure and has a maximum emission wavelength of 440 to 580 nm, a luminosity of 2 to 10 cd / m 2, a decay time of up to 2000 minutes, a specific gravity of 3 to 3.6, The weather resistance and water resistance are good, and the heat resistance is stable up to 400 占 폚. In particular, the phosphorescent pigment of the present invention can be widely used inside and outside of the jade because it does not emit harmful radiation to human body during use, has a long light emission time, and has excellent weatherability.
The phosphorescent pigment is used in an amount of 5 to 20 parts by weight based on the composition. When the phosphorescent pigment is used in an amount of less than 5 parts by weight, the density of the phosphorescent pigment is too low to obtain a sufficient afterglow effect, and if it is used in excess of 20 parts by weight, the density of the phosphorescent pigment becomes too high, It is difficult to manufacture dispersion in a stable state.
Salts of alkali metals
On the other hand, in the present invention, a salt of an alkali metal, preferably an alkali metal silicate, is used. Specifically, sodium silicate, potassium silicate, lithium silicate or the like typified by water glass is used. In this case, a silicate having a molar ratio of silica to alkali metal of 1: 3 to 1: 6 is preferably used. The alkali metal silicate is used in an amount of 5 to 20 parts by weight based on the amount of the composition. In this case, if the mixing ratio of the alkali metal silicate is relatively low, there is a high possibility that the inorganic-accumulative fluorescent substance is desorbed from the coating film. In addition, in the present invention, when the mixing ratio of the alkali metal silicate is relatively high, the degree of shrinkage of the silicate during the curing of the film is increased to cause cracks in the coating film or peeling of the coating film. The possibility increases.
Calcium carbonate
The composition of the present invention comprises calcium carbonate. Calcium carbonate improves the mechanical properties of the coating film formed after the coating composition is cured, thereby enhancing the durability of the coating film, thereby allowing the road marking to remain for a long time. The calcium carbonate is used in an amount of 5 to 20 parts by weight based on the amount of the composition. If the amount of the calcium carbonate is too small, the mechanical properties of the coating film may deteriorate and the durability may be deteriorated. On the other hand, if the amount of the calcium carbonate is too large, the required content of other components may be decreased, have.
Glass bead ( glass bead , Glass beads)
The glass bead is recycled and reflected so as to be recognized by the driver when the surface of the coated film is irradiated with light such as a headlight of a vehicle. The glass bead has a refractive index of 1.5 or more and a particle size of 0.03 to 3 mm desirable. The shape is spherical in general. The glass beads (glass beads) may be used in a range of 10 to 30 parts by weight with respect to the total composition of the present invention. If the amount is less than 10 parts by weight, the night visibility effect may be deteriorated. The effect of the visibility is not increased proportionally but rather the workability of the paint is deteriorated and the tensile strength may be lowered.
Since the paint composition for road surface display of the present invention uses methyl methacrylate (MMA) or polymethyl methacrylate (PMMA), not only is it excellent in strength and durability, but also simply paints a luminous paint (phosphorescent pigment) The acrylic resin having excellent strength and weather resistance is applied to the road surface by the natural bonding method, so that the installation is simple and there is no road breakage. Furthermore, since the surface of the polymethyl methacrylate (PMMA) is -60 ° C, the road surface does not freeze even when it snowy in winter, and the surface rainwater does not accumulate on the road surface when it is raining, Do. Also, it is possible to produce various colors and designs, and it is possible to enhance the beauty of the city as an environmentally friendly product.
Generally, the afterglow brightness of a coating using a phosphorescent pigment is only 20 to 200 mcd / m 2. However, the coating composition for road surface display of the present invention is most transparent resin, such as methyl methacrylate (MMA) or polymethyl methacrylate ), It maximizes the afterglow effect of the phosphorescent pigment and has the afterglow effect of ultra high brightness, that is, the afterglow brightness of 1,000 ~ 20,000 mcd / m 2 , so that the driver can clearly recognize the road and road markings on week, There is an effect to be able to do.
Further, the coating composition for road surface display according to the present invention allows the pedestrian and the driver to visually check the lane by the road surface display including the phosphorescent material, and also includes the glass bead as the retroreflector. Even when the afterglow effect of the phosphorescent material becomes weak, the driver can more easily recognize the road and road surface display by the reflex reflection function of the glass bead.
Claims (4)
80 to 95 parts by weight of methyl methacrylate (MMA) or polymethylmethacrylate (PMMA);
5 to 20 parts by weight of the phosphorescent pigment;
The salt of the alkali metal is 5 to 20 parts by weight as a silicate;
5 to 20 parts by weight of the calcium carbonate; And
And 10 to 30 parts by weight of the glass beads.
Wherein the phosphorescent pigment is an alumina-based photostimulable phosphor of an alkaline earth metal.
Wherein the particle size of the glass beads is 0.03 to 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140133119A KR20160039866A (en) | 2014-10-02 | 2014-10-02 | A Composition Comprising Phosphorescent pigment For Road Marking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140133119A KR20160039866A (en) | 2014-10-02 | 2014-10-02 | A Composition Comprising Phosphorescent pigment For Road Marking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160039866A true KR20160039866A (en) | 2016-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140133119A KR20160039866A (en) | 2014-10-02 | 2014-10-02 | A Composition Comprising Phosphorescent pigment For Road Marking |
Country Status (1)
| Country | Link |
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| KR (1) | KR20160039866A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189595A (en) * | 2017-07-21 | 2017-09-22 | 辽宁省交通科学研究院有限责任公司 | A kind of environment-friendly type road gage mark coating and preparation method thereof |
| KR101837148B1 (en) * | 2018-01-02 | 2018-03-09 | 부광화학공업(주) | Thermoplastic paint composition for road marking using high luminance luminescent pigments |
| KR102262716B1 (en) * | 2021-01-06 | 2021-06-09 | 주식회사 정석케미칼 | Luminescent acrylic paint composition with enhanced durability and visibility for road marking emphasizing |
-
2014
- 2014-10-02 KR KR1020140133119A patent/KR20160039866A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189595A (en) * | 2017-07-21 | 2017-09-22 | 辽宁省交通科学研究院有限责任公司 | A kind of environment-friendly type road gage mark coating and preparation method thereof |
| KR101837148B1 (en) * | 2018-01-02 | 2018-03-09 | 부광화학공업(주) | Thermoplastic paint composition for road marking using high luminance luminescent pigments |
| KR102262716B1 (en) * | 2021-01-06 | 2021-06-09 | 주식회사 정석케미칼 | Luminescent acrylic paint composition with enhanced durability and visibility for road marking emphasizing |
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