JPH0438991Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a low-shock elastic laminate preferably used for interior wall materials or floor materials of swimming pools, stadiums, etc.

Technical background of the invention and its problems Walls or floors with exposed concrete surfaces are dangerous if a person collides with them or falls over them. Elastic wall materials or floor materials made of urethane or the like are increasingly being installed on floors.

However, conventional elastic wall materials or flooring materials have a structure in which urethane paint, etc. is applied to the concrete surface, so there is a limit to the coating thickness, and although they have some elasticity, There was a risk that the shock that would be applied to a person during a fall or fall could not be absorbed sufficiently, leading to an accident resulting in injury.

Therefore, it is conceivable to construct an elastic wall or floor by bonding a board made of foamed polyolefin, which is softer than urethane, to the concrete surface, but foamed polyolefin does not easily adhere to the concrete surface and is difficult to install. Even if such an elastic floor were constructed, there was a risk that it would be too soft and would make walking difficult.

Purpose of the invention The present invention was made in order to eliminate the inconveniences of the conventional technology. It can sufficiently absorb the shock of collisions or falls, prevent accidents, and improve construction safety. is easy,
Moreover, it is an object of the present invention to provide an elastic laminate with low shockability that is easy to walk on even when used as a flooring material.

Summary of the invention In order to achieve the above object, the elastic laminate according to the invention includes a plate-shaped core layer made of foamed polyolefin, and a polyester core layer heat-sealed to the front and back surfaces of this core layer. A nonwoven fabric layer made of nonwoven fabric, an adhesive layer formed on one surface of the nonwoven fabric layer for adhering to a concrete surface, etc., and a soft urethane surface layer formed on the other surface of the nonwoven fabric layer. It is characterized by becoming.

According to the elastic laminate according to the present invention,
A relatively thick core layer of foamed polyolefin exhibits good cushioning properties and provides sufficient absorption of shocks caused by human or object impacts. Furthermore, even if such an elastic laminate is used as a flooring material, the surface layer made of soft urethane laminated on the surface side of the core layer with a nonwoven fabric layer interposed in between,
Since it has appropriate rigidity, your feet will not sink in more than necessary, making it easy to walk.

Furthermore, when such an elastic laminate is used as a wall material or flooring material, a polyester nonwoven fabric layer is heat-sealed to the core layer made of foamed polyolefin in advance, and the activated polyester molecules Since the surface of the core layer has polar groups, the back surface of the core layer made of foamed polyolefin, which is generally difficult to adhere to, can be easily attached to the concrete surface using an adhesive. Therefore, it is easy to install on walls or floors, and it will not peel off after installation.

Furthermore, since the surface layer made of soft urethane has waterproof properties, it is suitable for use as flooring and wall materials in damp places such as swimming pools.

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a cross-sectional perspective view of essential parts of a low-shock elastic laminate according to an embodiment of the present invention.

As shown in FIG. 1, the elastic laminate 1 according to the present invention includes a plate-shaped core layer 2, nonwoven fabric layers 3 and 4 laminated on the front and back surfaces of the core layer 2, and a layer formed on the surface of one of the nonwoven fabric layers 3. The nonwoven fabric layer 4 is made up of an adhesive layer 5 and a surface layer 6 formed on the surface of the other nonwoven fabric layer 4.

The core layer 2 is made of foamed polyolefin. The foamed polyolefin constituting the core layer 2 is as follows:
Foamed polyethylene, foamed polypropylene, etc. are used. The wall thickness of such foamed polyolefin is preferably 20 to 50 mm, and the foaming ratio is 20 to 50.
It is preferable that Moreover, it is preferable that the cells of the foamed polyolefin are closed cells. More specifically, as the core layer 2, for example, Softlon HT (manufactured by Sekisui Chemical Co., Ltd.), which is a foamed polyethylene having an expansion ratio of 31 and a wall thickness of 30 mm, is used.

The nonwoven fabric layers 3 and 4 are made of polyester nonwoven fabric, and are heat-sealed to the front and back surfaces of the core layer 2.

The adhesive layer 5 is formed by applying an adhesive to the surface of one of the nonwoven fabric layers 3 or the surface of the object to be coated. Epoxy-based, urethane-based, polyester-based, acrylic-based, rubber-based adhesives, etc. are used as adhesives, but when used in places where water resistance is required, water-resistant adhesives are preferred.
For example, Epomer A-100 and S-1000 manufactured by Asahi Kasei Industries, Ltd. are preferably used.

The adhesive force of the adhesive layer 5 allows the elastic laminate 1 according to the present invention to be easily spread over the surface of concrete 7, for example.

Surface layer 6 formed on the surface of the other nonwoven fabric layer 4
is made of soft urethane, for example, the nonwoven fabric layer 4
It is formed by applying urethane paint to the surface using a spray or roll brush. As the urethane paint, for example, a solvent-free two-component reactive urethane elastomer is used. The thickness of the surface layer 6 is preferably 2 to 10 mm.

In the illustrated embodiment, on the surface of this surface layer 6,
Furthermore, a surface finishing layer 8 is formed. The surface finishing layer 8 is made of soft urethane, and is formed by applying, for example, a mixture of urethane paint and 5 to 30% urethane chips on the surface layer 6. The reason why urethane chips are mixed with the urethane paint is to form minute convex portions on the surface of the surface finishing layer 8 and roughen the surface to prevent the surface from slipping. Further, it is preferable that the urethane paint constituting the surface finishing layer 8 is appropriately colored to improve the aesthetic appearance of the surface.

When constructing such an elastic laminate 1 as a floor material or wall material, for example, an adhesive is applied to the surface of the concrete 7 to form an adhesive layer 5, and a nonwoven fabric layer 3, 4 extends the core layer 2 heat-sealed to the front and back surfaces, and adheres the core layer 2 and the concrete 7. Next, urethane paint is spray applied to the surface of the nonwoven fabric layer 4 on the front side,
A surface layer 6 is formed, and then a colored urethane paint mixed with urethane chips is applied to form a surface finishing layer 8.

According to the elastic laminate 1 according to the embodiment of the present invention, the core layer 2 made of relatively thick foamed polyolefin exhibits good cushioning properties,
This will sufficiently absorb the shock caused by collisions with people or objects. Further, even if such an elastic laminate 2 is used as a flooring material, the surface layer 6 and the surface finishing layer 8 made of soft urethane laminated on the surface side of the core layer 2 with the nonwoven fabric layer 4 interposed therebetween are not suitable. Because it has such rigidity, the foot that presses against the surface does not sink down more than necessary, making it easy to walk on.

Furthermore, when such an elastic laminate 1 is used as a wall material or a floor material, since the polyester nonwoven fabric layers 3 and 4 are heat-sealed to the core layer 2 made of foamed polyolefin in advance, the polyester Since the surface of the core layer 2 has an active polar group of molecules, the back surface of the core layer 2 made of foamed polyolefin, which is generally difficult to adhere to, can be easily attached to the surface of the concrete 7 with an adhesive. At the same time, the adhesion between the core layer 2 and the surface layer 6 also improves. Therefore, it is easy to construct walls or floors, and these layers will not peel off after construction.

Furthermore, since the surface layer 6 and the surface finish layer 8 made of soft urethane have waterproof properties, they are suitable for use as flooring or wall materials in damp places such as swimming pools.

Note that the present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the present invention.

For example, in the construction example according to the embodiment described above,
After adhering the core layer 2 to the surface of the concrete 7,
Although the surface layer 6 and the surface finishing layer 8 are formed, the present invention is not limited to this. After forming the surface layer 6 and the surface finishing layer 7 on one of the nonwoven fabric layers 4 in advance, this laminate 1
may be adhered to the surface of the concrete 7 via the adhesive layer 5.

Effects of the Invention As explained above, according to the present invention, when the laminate according to the present invention is used as a flooring material, wall material, or covering material for various types of equipment, shocks caused by collisions with humans or objects can be sufficiently prevented. This makes it possible to prevent accidents before they occur.
Safety is greatly improved.

In addition, in this invention, a surface layer made of soft urethane is formed on the surface side, and this surface layer has appropriate rigidity, so that when this laminate is used as a flooring material, the feet will not sink excessively. , easy to walk.

Furthermore, in the present invention, a nonwoven fabric layer is heat-sealed in advance to the front and back surfaces of the core layer made of foamed polyolefin, which is generally difficult to bond, and bonding with other members is performed via this nonwoven fabric layer. , each layer does not peel off easily, and construction is also easy.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional perspective view of essential parts of a low-shock elastic laminate according to an embodiment of the present invention. 1... Elastic laminate, 2... Core layer, 3, 4...
Nonwoven fabric layer, 5...adhesive layer, 6...surface layer, 7...
...Surface finishing layer.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A plate-shaped core layer made of foamed polyolefin, a nonwoven fabric layer made of polyester nonwoven fabric heat-sealed to the front and back surfaces of this core layer, and bonded to a concrete surface, etc. A low shock elastic laminate comprising: an adhesive layer formed on one surface of the nonwoven fabric layer; and a soft urethane surface layer formed on the other surface of the nonwoven fabric layer. 2. The elastic laminate according to claim 1, wherein a finishing layer made of roughened soft urethane is further formed on the surface of the surface layer.