JPH08291512A - Reflecting marker and construction method therefor - Google Patents

Abstract

PURPOSE: To increase durability by fixing glass beads to the surface of a projected spherical body formed by a partial polymer of acrylic ester, and providing a transparent protective layer on the whole surface containing beads of the spherical body surface. CONSTITUTION: A material is prepared by mixing a partial polymer of acrylic ester, or a partial polymer of methacrylic ester, a hardening accelerator, and titanium oxide. A projected spherical body 10 having a diameter of 50-100mm and a height of 5-10mm is formed using the above material. Before the projected spherical body 10 is hardened, glass beads 15 are sprayed on the surface 11 of the spherical body 10 to be fixed in such a manner that about the half of the particle diameter is buried. A transparent protective layer 18 is formed by inorganic high polymer resin such as transparent thermosetting ladder silicon resin or the like on the exposed surfaces of the glass beads 15 and the whole surface of the exposed surface of the surface 11 to form a reflecting marker 1. At the time of constructing the marker 1, the base 12 of the marker is made adhere to a line material constructed on the road surface through an adhesive to install the marker.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflective marking object to be installed on a center line, an outside line, etc. of a road and a construction method thereof.

[0002]

2. Description of the Related Art Conventionally, road marking using retroreflection of glass beads has been known as a method of clearly indicating the alignment of a road on a traveling vehicle at night.

Such a reflective sign is often used in rainy weather.
There was a risk that rainwater collected on the road surface would cover the glass beads of road markings and impede the retroreflectivity of light from the vehicle headlights.

In response to this, a road marking object having a convex spherical surface has been developed in recent years. For example, Japanese Patent Publication 6-99
According to the technology disclosed in Japanese Patent No. 888, the road surface is made of a solvent-free reaction-curable resin coating that is fast-drying and highly durable, has a diameter of 5 to 50 mm and a height of 2 to 10 mm, and has glass beads on the surface or inside. A method has been proposed in which the convex hemispheres that are included are applied and solidified within a constant width at regular intervals, and road marking is performed in a continuous line.

[0005]

However, the method of forming a reflective sign by applying the composition manually or mechanically to the road surface in this way is basically based on the on-site construction outdoors. With solventless reaction-curable resin paints that are easily affected by weather conditions such as temperature, it is difficult to form a uniform diameter and height, and glass beads with retroreflective properties easily sink inside the sphere and are stable. There was a problem that it was difficult to secure the reflection performance.

Further, since the glass beads are scattered and fixed on the undried paint, there is a problem that the glass beads fixing force on the surface of the sphere is small and the glass beads are easily peeled off when a vehicle or the like passes by.

The present invention has been made in view of the above, and an object thereof is to provide a reflective sign which has stable dimensions and quality and has high durability.

[0008]

The present invention has been made to achieve the above object, and a reflective indicator of the present invention is a partial polymerization product of acrylic acid ester and / or partial polymerization of methacrylic acid ester. Which is a convex composition having a diameter of 50 to 100 mm and a height of 5 to 10 mm, and glass beads adhered to the surface of the spherical body. The reflective marking object is characterized by comprising a transparent protective layer made of an inorganic polymer resin on the entire surface including the glass beads on the surface of the spherical body.

Further, the construction method of the reflective sign is as follows: a partial polymer of acrylic acid ester and / or a partial polymer of methacrylic acid ester, a curing accelerator, and titanium oxide as the main composition, and a diameter of 50 to 100 mm. Height is 5-10m
A reflective sign formed on a convex spherical body of m and having glass beads fixed to the surface of the spherical body and having a transparent protective layer made of an inorganic polymer resin on the entire surface including the glass beads on the surface of the spherical body. Using an adhesive, an acrylic acid ester partial polymer and / or a methacrylic acid ester partial polymer, an adhesive containing a curing accelerator is applied to the installation position of the road surface, and the reflective marking is applied on the adhesive. It is a method of constructing a reflective sign, which is characterized by being installed by adhesion.

[0010]

The transparent protective layer of the reflective sign of the present invention integrally covers the glass beads and the spherical body to protect the glass beads from an external force applied while the vehicle is running and prevent them from peeling.

An adhesive composed of the same kind of binder as the spherical body firmly adheres to the road surface to prevent the reflective marking from peeling off.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a reflective sign denoted by reference numeral 1 is a glass bead 1 fixed to a surface 11 of a spherical body 10.
5 and the transparent protective layer 18 is provided on the entire surface.

The spherical body 10 is used as a component constituting the spherical body 10 in the examples, that is, the main ingredient A liquid: a partial polymer of acrylic acid ester 2 a partial polymer of methacrylic acid ester 32.5 tertiary amine (curing accelerator) 0 .5 glass beads 15a (refractive index 1.5, particle size 1.18 to 0.6) 20 titanium oxide 12.5 calcium carbonate (extrinsic pigment) 11.5 cold water sand (aggregate) 21 100 (wt%) hardening Agent B liquid Organic peroxide 40 Diluent 60 100 (wt%) A: B liquid Mixing ratio = 100: 2 (parts by weight) Prepare a material mixed with a diameter of 75 mm, height of 7.5 m
A spherical spherical body 10 having a convex shape of m is molded, and while the material is not cured, glass beads 15 are scattered on the surface 11 and fixed in a state in which about half of the particle diameter is embedded. The glass beads 15a were mixed with other compositions at the time of preparing the main agent A solution and were placed inside the spherical body 10. The refractive index and particle size of the glass beads 15 are
The same as 5a.

Further, a transparent protective layer 18 having a thickness of 100 μm is made of an inorganic polymer resin, for example, a transparent thermosetting ladder silicone resin, on the entire surface of the exposed surface of the glass beads 15 and the exposed surface of the surface 11. Has been formed.

The total amount of the partial polymer of acrylic acid ester and the partial polymer of methacrylic acid ester is 30 to 30.
90, curing accelerator 0.5-5, glass beads 15a 0-25, titanium oxide 5-20, extender pigment 0-3.
It is possible to mix in the range of 0% and 0 to 30% by weight of each aggregate. Moreover, the partial polymer of acrylic acid ester and the partial polymer of methacrylic acid ester constituting the spherical body 10 may be a partial polymer of acrylic acid ester or a partial polymer of methacrylic acid ester. Also,
The size of the spherical body 10 is best in the range of 50 to 100 mm in diameter from the relationship with the width of the line member 26 forming the center line of the road, etc., and the height is related to the retroreflective property and the non-submersible property. The range of 5 to 10 mm is desirable.

The reflective sign 1 thus constructed is
The adhesive 20 is applied on a line material 26 such as a center line applied to the road surface 25, and the bottom surface 12 is pressed and adhered onto the adhesive 20 to be installed on the road surface 25.

The adhesive 20 is formed mainly of components similar to those of the spherical body 10, and the main agent liquid A is a partial polymer of acrylic acid ester 2 is a partial polymer of methacrylic acid ester 32.5 Tertiary amine (curing accelerator) 0.5 Calcium carbonate (extender pigment) 65 100 (wt%) Hardener B liquid Organic peroxide 40 Diluent 60 100 (wt%) A: B liquid Mixing ratio = 100: 2 (parts by weight) It is prepared and applied corresponding to the area of the bottom surface 12 of the spherical body 10.

The total amount of the acrylic acid ester partially polymerized product and the methacrylic acid ester partially polymerized product is 30 to 30.
90, curing accelerator 0.5 to 5, extender pigment 10 to 7
It is possible to mix each in the range of 0% by weight. Further, the partial polymer of acrylic acid ester and the partial polymer of methacrylic acid ester are preferably prepared in accordance with the main component of the spherical body 10 and the mixing ratio thereof.

Since the adhesive 20 is composed of a binder similar to that of the spherical body 10, it is possible to prevent the reflective marking object 1 from peeling off and to firmly fix and install it on the line member 26. Further, when the vehicle travels on the reflective marking object 1 installed on the road surface 25, the external force applied to the reflective marking object 1 is received by the transparent protective layer 18, and the glass beads 15 are separated from the spherical body 10. To prevent.

[0021]

EFFECTS OF THE INVENTION Since the reflective sign and the method for constructing the reflective sign according to the present invention have the above-described configurations, the transparent protective layer can receive the external force applied to the reflective sign and prevent the glass beads from peeling.

Further, since an adhesive agent composed of the same kind of binder as the spherical body component is used, the adhesion to the road surface is firmly performed,
It is possible to prevent peeling from the road surface.

Further, the present reflective sign and the construction method can be manufactured in a series of manufacturing steps in a temperature-controlled factory, and various conditions such as curing of spherical bodies and fixation of glass beads can be optimized. It has the effect of managing and maintaining stable dimensions and quality.

[Brief description of drawings]

FIG. 1 is a sectional view of a reflective sign according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional view showing a reflective sign adhered to a road surface.

[Explanation of symbols]

 1 Reflective Marking Material 10 Spherical Body 11 Surface 12 Bottom Surface 15 Glass Beads 18 Transparent Protective Layer 20 Adhesive

Claims (2)

[Claims] 1. A main composition comprising a partial polymer of acrylic acid ester and / or a partial polymer of methacrylic acid ester, a curing accelerator, and titanium oxide, and having a diameter of 50 to 100.
A reflective sign formed on a convex spherical body having a size of 5 mm and a height of 5 to 10 mm, and glass beads being adhered to the surface of the spherical body, wherein the entire surface including the glass beads on the surface of the spherical body is inorganic. A reflective marking comprising a transparent protective layer made of a high-polymer resin. 2. A partial polymer of acrylic acid ester and / or a partial polymer of methacrylic acid ester, a curing accelerator, and titanium oxide as a main composition, and a diameter of 50 to 100.
A transparent protective layer formed on a convex spherical body having a size of 5 mm and a height of 5 to 10 mm, glass beads being fixed to the surface of the spherical body, and an inorganic polymer resin on the entire surface including the glass beads on the surface of the spherical body. Using a reflective sign provided with, an adhesive containing a partial polymer of acrylic acid ester and / or a partial polymer of methacrylic acid ester and a curing accelerator is applied to the installation position on the road surface, and A method for constructing a reflective sign, characterized in that the above-mentioned reflective sign is adhered to and installed on.