KR200283770Y1 - flexible rubber sheet - Google Patents

Abstract

The present invention relates to an elastic flooring material, the elastic flooring material attached to the floor surface of the indoor gymnasium, office, hospital, school, hotel, jogging course, etc., the thickness is 0.1mm to 3mm and various colors and designs are printed An upper layer (10; surface layer) consisting of a film interlayer 11 and a transparent paper 12 laminated on the interlayer film 11 by a high temperature compression method to a thickness of 0.3 to 0.5 mm as a material of synthetic resin; While being an elastic material, the lower layer 20 (elastic layer) is completed by spray-bonding foamed PVC to the bottom surface of the film interlayer 11 of the upper layer 10, the upper layer 10 and the lower layer 20 is flame retardant The material of the upper layer 10 is made of SBR (stylene butadiene rubber), NBR (acrylonitrille butadiene rubber), CR (chloroprene), FR (fluorinated rubber), EPDM (ethylene propylene dienemethylene) or PVC, The elastic material of the lower layer 20 is made of PVC, PE (polyethylene), EVA (ethylene vinyl acetate copolymer), PS (polystyrene), PU (polyuretane).

Therefore, the elastic flooring material of the present invention completes the elastic flooring material by spraying a foamable elastic material on the bottom of the upper layer while maintaining the convenience of the existing elastic flooring material, so that the connection part of the upper layer and the lower layer is not easily separated by external pressure. It has the effect of improving the life of the product, that is, durability, and also to the flame retardant treatment of the upper layer and the lower layer of the elastic flooring material, there is an effect that can significantly reduce the rate of fire.

Description

Flexible flooring sheet {flexible rubber sheet}

The present invention relates to an elastic flooring using a foamed PVC, and more particularly, by using a transparent PVC upper paper of a certain thickness, by spraying the foamed PVC on the upper layer (surface layer) laminated with the film interlayer paper to complete the lower layer (elastic layer) In addition, the strength of the connecting portion between the upper layer and the lower layer is improved, as well as to the elastic flooring material to help prevent fire by using the flame retardant material of the upper layer and the lower layer.

As is well known, polyvinyl chloride (PVC) is a general purpose plastic used in thermoplastic polymers worldwide with over 20 million tons per year. PVC is a raw material with various characteristics such as chemical resistance, flame retardancy, flexibility, sound insulation, and heat insulation, and also has excellent applicability with various additives to make various products from soft to hard products.

Here, the elastic flooring material which is installed on the floor of indoor gymnasium, office, hospital, school, hotel, jogging course, etc. is made of plate shape by thermally compressing synthetic rubber binder after atomizing waste rubber such as tire, Polyurethane (PU; polyurethane) to the bonding to give the elasticity to give a product is a situation that is widely used.

In the related art, vulcanized rubbers such as waste tires are mixed with single or unvulcanized rubbers, and pulverized in a fibrous or needle shape to make rubber chips, mixed with a binder such as urethane resin, and molded by pressing. A technique for producing a sheet form by attaching flat to a thickness of 4 to 20 mm on a nonwoven or asphalt impregnated paper is disclosed in US Pat. No. 4,082,888.

In Korea, a method of manufacturing an elastic rubber plate which is obtained by mixing rubber particles obtained by pulverizing vulcanized rubber with a liquid rubber paste and heating and pressing them in a plate form is registered in Korean Patent Registration No. 61763, Utility Model Registration No. 185340, Patent Publication No. 1999-86197, and a method using an urethane rubber cork chip, an elastic material, is also introduced in Utility Model Registration No. 166396.

However, since the rubber powder or rubber particles used in the prior art use needle-like rubber particles obtained by crushing the raw rubber with a grinder, the adhesive surface area between the particles is turned on, so that the amount of the binder used as the adhesive is relatively increased, as well as the sheet. There is a disadvantage that the void density formed therein becomes smaller and the elasticity is lowered.

In addition, the hot pressing method or the method using an adhesive, which is mainly used as a method of connecting the surface layer and the elastic material, is easily separated by physical force, resulting in shortening the life of the elastic floor material.

In the case of plastic, which is a polymer material, it is weak to heat, and toxic gas is generated from plastic when a fire occurs. As a result, fatal casualties have been caused, but it is used without any measures.

Therefore, the present invention was devised to solve the above problems, and by completing the lower layer (elastic layer) by spray-bonding the foamed PVC to the bottom of the upper layer (surface layer), the upper layer and the lower layer by the external pressure generated in the past Because the adhesive part of is not separated, the durability of elastic flooring is improved, and the flame retardant treatment is applied to the upper layer (surface layer) and the lower layer to secure the stability from fire and to provide the elastic flooring which can be effectively finished during construction. have.

1 is a cross-sectional view of the elastic flooring material according to the present invention.

* Description of the symbols for the main parts of the drawings *

10 --- top layer, 11 --- film slippers,

12 --- transparent paper, 20 --- lower layer.

The present invention for achieving the above object is in the elastic flooring material attached to the floor of the indoor gymnasium, office, hospital, school, hotel, jogging course, etc., the thickness is 0.1mm to 3mm and various colors and designs An upper layer made of a film interleaved to be printed and a transparent paper laminated on the film interlayer in a thickness of 0.3 to 0.5 mm using a material of synthetic resin by a high temperature compression method; While being an elastic material, the lower layer is formed by spray-bonding foamed PVC to the bottom surface of the film interlayer of the upper layer, characterized in that the upper layer 10 and the lower layer 20 is flame retardant.

In addition, the present invention is characterized in that the material of the upper layer is synthetic resin SBR (stylene butadiene rubber), NBR (acrylonitrille butadiene rubber), CR (chloroprene), FR (fluorinated rubber), EPDM (ethylene propylene dienemethylene) or PVC.

In addition, the present invention is characterized in that the elastic material of the lower layer is PVC, PE (polyethylene), EVA (ethylene vinyl acetate copolymer), PS (polystyrene), PU (polyuretane).

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 is a cross-sectional view of the elastic flooring material according to the present invention. As shown, the elastic flooring material of the present invention, the top layer 10 (surface layer) is 0.1mm to 3mm in thickness, the film interlayer 11 and various colors and designs are printed, and 0.3 to 0.5mm as the material of the synthetic resin It consists of a transparent paper 12 which is laminated on the film interlayer 11 with a thickness of. In this case, all materials are flame retardant so that they do not burn well even when the flames come into contact with each other. The treated material is laminated by high temperature compression method to complete the upper layer (surface layer) of the flooring material. On the other hand, since the film slipper 11 is a part which can be finally seen by the user, various colors and designs are printed on the film slipper 11, so that the consumer feels aesthetics.

In addition, the material of the upper layer 10 (surface layer) may be synthetic resin SBR (stylene butadiene rubber), NBR (acrylonitrille butadiene rubber), CR (chloroprene), FR (fluorinated rubber), EPDM (ethylene propylene dienemethylene) may be used, In this design, we applied PVC which is much more effective in flame retardant treatment.

On the other hand, the elastic flooring material of the present invention is the bottom layer 20 (elastic layer) is an elastic material, and is completed by spray-bonding to the bottom surface of the film interlayer 11 of the upper layer 10 (surface layer) by using a foamed PVC, thereby When the conventional high temperature compression method or the adhesive is used, the separation of the connection portion does not occur at all.

In the case of the expandable PVC used in the lower layer 20, the hardness of the product can be adjusted freely by varying the additive or by changing the treatment method so that the elasticity of the product can be arbitrarily adjusted. In addition, the elastic material used in the lower layer can also be flame retardant treatment has the same characteristics as the upper layer (10). In addition to PVC, PE (polyethylene), EVA (ethylene vinyl acetate copolymer), PS (polystyrene), and PU (polyuretane) may be used as the elastic material of the lower layer 20.

Since the elastic flooring material configured as described above is bonded to the bottom of the upper layer by spraying a foamed elastic material, the connection part of the upper layer and the lower layer can be firmly bonded, so that the separation of the connection part that has occurred conventionally does not occur at all. In addition, there is an advantage that the thickness of the flooring material can be adjusted freely through mechanical treatment during molding.

Preferably, the elastic flooring material of the present invention can be produced in a sheet form and roll form of a certain standard in order to provide a user with convenience in construction.

According to the present invention described in detail as described above, while maintaining the convenience of the existing elastic flooring material as it is by spraying a foamed elastic material to the bottom of the upper layer to complete the elastic flooring, the connection portion of the upper layer and the lower layer to the external pressure It is not easily separated by the effect of improving the life of the product, that is, durability.

In addition, the upper layer and the lower layer of the elastic flooring material to be double flame-retardant, there is an effect that can significantly reduce the rate of fire.

Claims (3)

In the elastic flooring material attached to the floor of indoor gymnasium, office, hospital, school, hotel, jogging course, Transparent paper that is laminated with a high temperature compression method on the film slipper 11 with a thickness of 0.1 mm to 3 mm and various colors and designs are printed, and a thickness of 0.3 to 0.5 mm as a material of synthetic resin. An upper layer 10 (surface layer) consisting of 12; While being an elastic material, the lower layer 20 (elastic layer) is completed by spray-bonding the foamed PVC to the bottom surface of the film interlayer 11 of the upper layer 10; wherein the upper layer 10 and the lower layer 20 is Elastic flooring, characterized in that the flame-retardant treatment. According to claim 1, wherein the material of the upper layer 10 is synthetic resin SBR (stylene butadiene rubber), NBR (acrylonitrille butadiene rubber), CR (chloroprene), FR (fluorinated rubber), EPDM (ethylene propylene dienemethylene) or PVC Elastic flooring characterized in that. The elastic floor material of claim 1, wherein the elastic material of the lower layer (20) is PVC, polyethylene (PE), EVA (ethylene vinyl acetate copolymer), PS (polystyrene), or PU (polyuretane).