JPH0625554A - Water repellent paint for road dividing line - Google Patents

Abstract

PURPOSE:To obtain a water repellent paint for road dividing lines, having visibility even in rainy weather and at night and capable of keeping visibility over a long period. CONSTITUTION:This water repellent paint for road dividing lines is characterized by blending 100 pts.wt. paint for road dividing lines with 2-10 pts.wt. at least one kind of a water repellent treating agent selected from a fluororesin, a silicone compound and a hydrophobic silica.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-repellent paint for road marking lines, and more particularly to a water-repellent paint for road marking lines which has good visibility during rainy night.

[0002]

2. Description of the Related Art Conventional paint used for marking roads and the like contains glass beads as a light-reflecting material so that it can be visually recognized even at night. However, when the road gets wet with rainwater, etc., a water film will form on the coated surface,
With the glass beads as the light-reflecting material, retroreflective light of light disappeared, and it was difficult to confirm road marking lines at night.

[0003]

SUMMARY OF THE INVENTION The present invention provides a water-repellent paint for road marking lines, which has excellent visibility even in the rainy night and can maintain the visibility for a long time. It is intended.

[0004]

As a result of intensive studies to solve the above problems, the present inventors have found that the above problems can be solved by incorporating a specific water repellent treatment material into a road marking line paint, The present invention has been completed based on this finding.

That is, the present invention relates to a road marking line paint 1.
2 parts by weight of at least one water repellent treatment agent selected from a fluororesin, a silicone compound and a hydrophobic silica is added to 00 parts by weight.
It is intended to provide a water-repellent paint for road marking lines, which is characterized by containing 10 parts by weight.

In the present invention, by applying a strong water repellent treatment to the road marking line paint, it is possible to eliminate the adherence of rainwater and the like to the painted surface and enable the retroreflection of light by the glass beads of the light reflecting material.

Examples of the paint for road marking lines used in the present invention include welding paint and traffic paint. As the welding-type paint, a resin blended with a plasticizer, an inorganic filler, a coloring agent, glass beads and the like is used.

As the resin, raw rosin, maleated rosin, maleated rosin ester resin, petroleum resin, polyamide resin, saturated polyester resin, xylene resin, hydrogenated rosin, hydrogenated petroleum resin, polyethylene, polypropylene, coumarone-indene resin. , Terpene resin, ethylene-vinyl acetate copolymer resin, ethylene ethyl acrylate copolymer resin, unsaturated polyester resin, epoxy resin,
Examples thereof include urethane resin and acrylic resin.

As the plasticizer, vegetable oil, alkyd resin,
Mineral oils, epoxidized oils, phthalates, liquid synthetic rubbers and the like can be mentioned.

As the inorganic filler, calcium carbonate,
Examples include silica sand, talc, cold water stone, and alumina powder.

Examples of the colorant include white pigments such as titanium dioxide, zinc white, lithopone, and lead white, and examples of yellow pigments include organic yellow pigments, iron oxide, and titanium yellow.

The glass beads have a particle size of 0.1 to 0.1.
A 2.0 mm one is preferably used.

The blending ratio of each component in the fusion paint is 8 to 20% by weight of resin, 0.5 to 5% by weight of plasticizer, 32 to 70% by weight of inorganic filler, and 10 to 30% by weight of glass beads. % Is preferable. In addition, additives such as an anti-settling agent, an anti-aging agent, and an ultraviolet absorber are appropriately blended as necessary.

As the traffic paint, a resin such as an alkyd resin varnish mixed with a solvent such as methanol or toluene, an inorganic filler, a coloring material or the like is used. In the case of traffic paint, glass beads are usually applied to the road after the traffic paint has been applied to the road.

In the water repellent paint for road marking lines of the present invention, at least one water repellent treatment agent selected from a fluorine compound, a silicone compound and hydrophobic silica is blended with the paint for road marking lines. The compounding amount of the water repellent treatment agent is 2 to 10 parts by weight with respect to 100 parts by weight of the road marking line paint. These water repellent treatments have a heat resistance of 200 ° C or higher and have good compatibility with the welding-type paint, and after mixing, impart sufficient water repellency to the coated surface to prevent rainwater from adhering to the coated surface, It enables retroreflection of light by the glass beads of the reflector and facilitates visual recognition of road marking lines at night. Water-repellent property will be lost if the surface coating is abraded due to friction etc. just by providing a coating on the surface of the coating film having no water repellent treatment property. Since it contains a water repellent agent, the coating film surface maintains water repellency for a long time. Silicone compounds basically tend to separate because they have a property that they are difficult to fuse with other substances, but when combined with hydrophobic silica, this separation is suppressed, so silicone compounds and hydrophobic silica Is preferably used in combination. The mixing ratio is preferably 1 to 50 parts by weight of hydrophobic silica with respect to 100 parts by weight of the silicone compound.

As the silicone compound, silicone oils such as methyl hydrogen polysiloxane and dimethyl silicone oil are preferably used. Specific examples thereof include trade names KF99 and KF96 manufactured by Shin-Etsu Chemical Co., Ltd. Further, as the fluororesin, polytetrafluoroethylene or the like is preferably used. Specific examples thereof include Polylube T-700 manufactured by IDEA. The hydrophobic silica is a fused silica whose surface is coated with an organic silicon compound. Specifically, CABOT CORPO is used.
The CAB-0-SIL TS-530 of RATION is preferably used.

The construction method of the water-repellent paint for road marking line of the present invention is the same as the existing construction machine (paint dissolving machine and wire drawing construction machine).
It can be used without any modification.

The sectional shape of the lane marking is such that, as shown in FIG. 1, the center of the lane marking is slightly raised and the end is lowered in order to remove water droplets formed by water repellency from the surface of the lane marking. It is preferable.

[0019]

EXAMPLES The present invention will now be described in detail based on examples, but the present invention is not limited thereto.

Example 1 Petroleum resin Quinton C-5 (manufactured by Zeon Corporation, trade name) 15% by weight, titanium white (pigment) 8% by weight,
Calcium carbonate (bone agent) 57% by weight, alkyd resin (plasticizer) 2% by weight, glass beads (particle size distribution 105-80)
4 μm) 100 parts by weight of a welding-type coating composition containing 18% by weight of oil-based methylhydrogenpolysiloxane KF99
(Shin-Etsu Chemical Co., Ltd., trade name) 5 parts by weight were mixed to obtain a water-repellent paint for road marking lines.

When welding was applied to a road using this paint, the visibility was excellent even at night and in the rain, and the visibility was maintained even after 4 months.

Example 2 A coating composition was prepared in the same manner as in Example 1 except that 5 parts by weight of dimethyl silicone oil KF96 was used in place of 5 parts by weight of KF99. Excellent visibility was maintained even after 4 months.

Example 3 Polylube T-700 in place of 5 parts by weight of KF99
A coating material was prepared in the same manner as in Example 1 except that 5 parts by weight was used, and was welded to the road. As a result, the visibility was excellent even at night in the rain, and the visibility was maintained even after 4 months.

Example 4 CAB-0-SIL TS in place of 5 parts by weight of KF99
A coating material was prepared in the same manner as in Example 1 except that 5530 parts by weight was used, and welding was performed on the road. The visibility was excellent even during rainy night, and the visibility was maintained even after 4 months. .

Example 5 4 parts by weight of KF99 and CA instead of 5 parts by weight of KF99
A coating material was prepared in the same manner as in Example 1 except that 1 part by weight of B-0-SIL TS-530 was used, and was welded to a road. It was excellent in visibility even during night rainy weather and was excellent even after 4 months. The visibility was maintained. Further, this paint hardly separated in the wire drawing machine, and it was not necessary to stir the paint.

Comparative Example 1 A coating material was prepared in the same manner as in Example 1 except that 5 parts by weight of KF99 was not added to the coating material, and welding was performed on the road. The visibility was lost in 2 days.

[0027]

The water-repellent paint for road marking lines of the present invention,
The visibility was good even at night and in the rain, and we could obtain a lane marking that was sustainable for a long time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a water repellent paint for road marking lines applied to a road.

[Explanation of symbols]

 1 marking line 2 road surface

Claims (1)

[Claims] 1. A road marking line comprising 100 parts by weight of a paint for a road marking line and 2 to 10 parts by weight of at least one water repellent agent selected from a fluororesin, a silicone compound and a hydrophobic silica. Water repellent paint.