JP2949320B2 - Elastic block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement elastic block.

[0002]

2. Description of the Related Art Conventionally, an elastic block for pavement has been used as a base material formed by molding a compound comprising a hard rubber made of natural rubber or synthetic rubber, an inorganic pigment such as iron oxide, and a binder.

[0003] However, the above-mentioned conventional elastic block is disadvantageous in that the cost is increased due to the compounding of the pigment, the color is monochromatic or two-color, and the design is poor.

[0004]

The problem to be solved is that the above-mentioned conventional elastic block is expensive because it contains a pigment, and is monochromatic or two-color, and lacks design.

[0005]

The present invention will be described with reference to the drawings. The present invention comprises a rubber chip 10 made of solid or sponge rubber, an acrylic resin chip 20 and a binder 3.
This is an elastic block obtained by molding a compound consisting of 0.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS To explain the embodiment, reference numeral 10 is a rubber chip made of solid or sponge rubber, 20 is an acrylic resin chip, and 30 is a binder. More specifically, the rubber chip 10 is made of natural rubber, synthetic rubber such as styrene butadiene rubber, butadiene rubber, chloroprene rubber, and ethylene propylene rubber, and has a chip mesh of 5 mm or less and a binder 3.
Fine powders of 1 mm or less are removed in order to avoid an increase of zero. The acrylic resin chip 20 desirably has a chip mesh of 3 mm or less, and removes fine powder of 1 mm or less for the same reason as the rubber chip 10. The binder 30 is not particularly limited as long as it can be generally used as a binder for the rubber chip 10, such as a urethane-based or liquid polybutadiene-based binder. The addition of the curing catalyst is not limited.

[0007] Formulation examples are shown in Table 1.

[0008]

[Table 1]

The amount of the acrylic resin chip 20 is preferably equal to or less than that of the rubber chip 10. If the amount of the acrylic resin chip 20 exceeds that of the rubber chip 10, the molding time increases and the strength of the obtained elastic block decreases.

As a molding method, any of a curing method using room temperature curing and a thermoforming method using a mold can be used. However, in the case of thermoforming, the maximum molding temperature is preferably 140 ° C. This is because if the molding temperature is higher than that, the acrylic resin chip 20 melts and a problem of contaminating the mold occurs.

To explain the function, when the above compounding agent was thermoformed in a mold at 125 ° C. for 10 minutes, an inexpensive stone-like elastic block was obtained without using a pigment.

[0012]

Since the present invention is configured as described above,
By changing the types and mixing ratios of the rubber chip 10 and the acrylic resin chip 20 without using a pigment, a stone-grained elastic block having a different appearance and suitable for the intended use can be manufactured at low cost. In addition, industrial waste such as weather strips can be used, and as a recycled product, it can also contribute to environmental conservation.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 10 Rubber chip 20 Acrylic resin chip 30 Binder

Claims (1)

(57) [Claims] An elastic block formed by molding a rubber chip made of a solid or sponge rubber, and a compound made of an acrylic resin chip and a binder.