JP3231975U - Tile sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tile sheet which can be easily cut with a cutter knife or the like and has excellent waterproofness and toughness without causing unevenness even if the floor surface or board surface to be constructed has some unevenness. To do. SOLUTION: A tile sheet 1 is arranged with a base sheet 4 made of a flexible material, which is a waterproof sheet formed by molding a polyurea or a polyurea urethane resin composition, and a base sheet 4 which is adhered with an adhesive and has a joint gap between them. It is provided with a plurality of tiles 2 that have been formed. [Selection diagram] Fig. 1

Description

The present invention relates to a tile sheet that can be easily constructed simply by laying it on the floor or the like.

Conventionally, in order to shorten the construction period in tile construction, reduce the number of operations, and improve the construction efficiency, tile panels in which a plurality of tiles are attached to a substrate and joints are formed between the tiles have been provided.

The following patent documents have been proposed as providing a tile sheet that does not cause unevenness even if the floor surface to be constructed has some irregularities and can be easily cut with a cutter knife or the like.
Japanese Unexamined Patent Publication No. 2005-120598

The tile sheet of Patent Document 1 includes a sheet made of a flexible material, a plurality of tiles arranged on the sheet with a joint gap between them, and a joint material made of a flexible material provided in the joint gap. Be prepared for.

An adsorption layer having adsorption property to the floor surface was provided on the lower surface of the sheet. Further, a receding allowance is formed between at least one side of the sheet and a tile along the side, and the joint material is also provided in the receding allowance.

The sheet is made of a flexible material such as a thermoplastic resin and rubber, and specifically, for example, polyethylene foam, soft silicone resin, soft silicone rubber and the like are used.

In the tile sheet of Patent Document 1, since the sheet is made of a flexible material, even if there are some irregularities on the floor or the like to be constructed, the sheet absorbs the irregularities, so that the surface of the tile sheet 1 becomes uneven. Is prevented.

Further, this tile sheet can be easily cut along the joint with a cutter knife or the like. Therefore, the tile sheets 1 are laid out on the floor, and even when a gap smaller than the size of the tile sheet 1 finally occurs in the corner of the floor, the tile sheet 1 is installed so as to match the size of the gap. It can be easily cut and installed on site.

To renovate or renovate the bathroom, remove the terminal equipment such as hot water taps, gas taps, and ventilation fans in the bathroom, remove the drainage port, inspection port, door, frame, tiles, etc., except for the existing bathtub, and remove the floor and walls. After performing the tile lifting work (shaving work) and the mortar lifting work, the floor surface, the wall, the back surface of the shavings, and the area around the drainage port are waterproofed again, the tiles are attached to the floor together with the mortar, and the tiles are attached to the wall. Paste and install a new tub to restore the bathroom.

As described above, waterproofing work is required for tile replacement in bathroom renovation or renovation, but the tile sheet of Patent Document 1 does not take waterproofness into consideration.

Further, the sheet is made of a flexible material such as a thermoplastic resin or rubber, and for example, polyethylene foam, soft silicone resin, soft silicone rubber or the like is used, but it lacks durability and toughness.

The object of the present invention is to solve the inconvenience of the above-mentioned conventional example, and even if the floor surface or the board surface to be constructed has some irregularities, no unevenness occurs, and it can be easily cut with a cutter knife or the like. The purpose of the present invention is to provide a tile sheet having excellent waterproofness and toughness.

In order to achieve the above object, the present invention according to claim 1 is a base sheet made of a flexible material which is a waterproof sheet formed by molding a polyurea or a polyurea urethane resin composition, and a base sheet which is adhered to the base sheet with an adhesive and joints with each other. The gist is that it is provided with a plurality of tiles arranged with a gap.

According to the present invention according to claim 1, the polyurea or polyurea urethane resin composition forming the base sheet is a resin formed by bonding the curing agent polyamine to the main agent polyisocyanate (urea bond). It is less likely to hydrolyze than conventional urethane bonds. In addition, the agglomeration energy of atomic groups (the force that attracts them to bond) is strong, and a stronger film is formed, so that the base sheet is excellent in waterproofness and toughness.
Table 1 below shows the difference between the urea bond and the urethane bond.

By laying the base sheet, the tiles can also be laid, and the tiles can be constructed easily and quickly, and the tiles can be laid on the waterproof layer by the base sheet.

Further, since the base sheet is made of a flexible material, it is possible to prevent non-landing even if the floor surface has some irregularities.

Further, since the base sheet is made of a flexible material, it can be easily cut along the joint with a cutter knife or the like.

The gist of the present invention according to claim 2 is that the base sheet and the plurality of tiles arranged with a joint gap are rectangular shapes having the same shape, and the tiles are staggered from each other and adhered to form a sticking allowance for eye jars. It is to be.

According to the present invention according to claim 2, since the base sheet and the tile are bonded to each other by shifting each other to form a sticking allowance for eye jars, the sticking allowance of this base sheet is the base sheet on the back side of the adjacent tile. By entering the part where there is no tile, you can stack it with Aijakuri.

The gist of the present invention according to claim 3 is that it is attached on a heat insulating panel made of a plastic foam material.

According to the present invention according to claim 3, by pasting the tile sheet of the present invention on a heat insulating panel in a bathroom or the like, the coldness of the tile is eliminated and the risk of causing an old heat shock is eliminated. Can be done. In addition, it can be commercialized as a product with a heat insulating panel to simplify the construction.

As described above, the tile sheet of the present invention does not cause unevenness even if the floor surface or board surface to be constructed has some irregularities, can be easily cut with a cutter knife or the like, and is waterproof. And it has excellent toughness.

It is a perspective view which shows one Embodiment of the tile sheet of this invention. It is a vertical sectional side view which shows one Embodiment of the tile sheet of this invention. It is a top view which shows one Embodiment of the tile sheet of this invention. It is a vertical sectional side view of the pasted state which shows 1 Embodiment of the tile sheet of this invention. It is a perspective view of the bonding site which shows 1 Embodiment of the tile sheet of this invention. It is a vertical sectional side view which shows the sticking to the heat insulating panel of the tile sheet of this invention.

Hereinafter, embodiments of the present invention will be described in detail with respect to the drawings. FIG. 1 is a perspective view showing one embodiment of the tile sheet of the present invention, FIG. 2 is a vertical sectional side view of the same as above, FIG. 3 is a plan view of the same as above, and FIG. The tile, 4 in the figure, shows a base sheet made of a flexible material, which is a waterproof sheet formed by molding a polyurea resin composition.

Explaining from the base sheet 4 first, diphenylmethane diisocyanate (hereinafter, may be abbreviated as “MDI”) having an excessive equivalent ratio to the hydroxyl group equivalent of polypropylene glycol (PPG) having two or more hydroxyl groups is mixed. The NCO% of MDI-based prepolymer having two or more isocyanate groups, to which a plasticizer of 0% or more and 15% or less was added, which was obtained by reacting by heating and stirring, was 8% or more to 16% or less. The main material of the above is an amine such as DETDA or POAPA having two or more amino groups, PPG having two or more hydroxyl groups, a plasticizer, an antiaging agent, a reaction catalyst, an antifoaming agent, and a curing agent mixed with a pigment. It is heated by a dedicated machine, pumped by pressure from the hose, mixed at the tip of the hose, stirred, and sprayed onto a mold to form a polyurea or polyurea urethane resin composition as a molded waterproof sheet.

The waterproof sheet obtained by molding a polyurea or polyurea urethane resin composition has a thickness of 0.5 mm or more and 3.0 mm or less, a tensile strength of 10 N / mm ² or more at 23 ° C., and a tear strength of 30 N / mm or more. 6021 It has the performance of urethane rubber-based high-strength type of waterproof coating material for roofs.

The ratio of the amino group to the hydroxyl group of the curing agent is preferably amino group: hydroxyl group = 100: 0 to 60:40. Among them, 60:40 is the most suitable.

Since 100: 0 is all amino groups, it becomes a polyurea resin, and when 40 parts of a hydroxyl group is contained at 60:40, the reaction product with the 40 parts becomes a urethane resin. The polyurea urethane resin is a mixture of a polyurea resin that reacts with an amino group and a urethane resin that reacts with a hydroxyl group.

Urea bond and urethane bond have different binding energies, and urea bond> urethane bond, and a certain level or more of urea bond is required to ensure performance.

The ratio of the NCO group of the main agent and the total group of the amino group and the hydroxyl group of the curing agent is NCO group: (amino group + hydroxyl group) = 1.0: 1.05-1.0: 0.75.

If the total number of amino groups + hydroxyl groups is too large compared to the NCO group of the main agent, the physical properties will deteriorate and curing will be poor, and if it is too small, the NCO groups will react with the moisture in the air and the coating film will foam. It ends up.

By applying a top coat to prevent deterioration of ultraviolet rays in advance on the surface of the waterproof sheet obtained by molding the polyurea or polyurea urethane resin composition, the ultraviolet resistance performance can be exhibited and the deterioration can be prevented.

The tile 2 is preferably made of ceramic, plastic, or the like, and a plurality of tiles 2 are arranged in a grid pattern with equal joint gaps 8 in the vertical and horizontal directions.

The plurality of tiles 2 and the base sheet 4 arranged side by side with a joint gap 8 are both rectangular on the same side, and have the same size, and the tiles 2 are staggered to be attached to the base sheet 4 with an adhesive. Formed a sticking allowance 5 for tiles

The tiles 2 arranged along each side of the sheet 4 are deviated from each side by a predetermined distance, and a pasting allowance 5 is formed between each side and the tile 2 along the side. The width of the sticking allowance 5 is about half the width of the tile 2.

Since the plurality of tiles 2 arranged in an aligned manner are set in a sheet shape with a release paper installed on the back side, the release paper is peeled off when attaching.

Further, as the adhesive for attaching the tile 2 to the base sheet 4, an adhesive containing at least the following (A) main agent and (B) curing agent is suitable. (Rimbond: registered trademark)
(A) A main agent containing a urethane prepolymer having a urethane-bonded structure of an aliphatic diamine and "polypropylene glycol having a hydroxyl group equivalent of 500 or more and 5000 or less" in the molecule and having two or more isocyanate groups at the molecular ends (A) B) Hardener containing diethylmethylbenzenediamine (DETDA)

Further, only tiles of the same color or the same design may be arranged on one base sheet 4, or two or more tiles having different colors or designs may be arranged.

A base sheet 4 made of a waterproof sheet formed by molding the polyurea or polyurea urethane resin composition as described above, and a plurality of tiles 2 bonded to the base sheet 4 with an adhesive and arranged with a joint gap between them. The usage of the tile sheet 1 of the present invention provided will be described.

The tile sheet 1 exists as a product with the base sheet 4, and at that time,
The joint material 3 may be filled in the joint gap 8, but the joint material 3 may be filled after the tile sheet 1 is attached.

The joint material 3 is made of a flexible material as a material to be filled in advance. Adhesive resins such as urethane resin, acrylic resin, and polyester resin are preferable, and among these, urethane resin is particularly preferable. When filling later, a cement-based joint material may be used.

As shown in FIG. 6, for example, when renovating a bathroom, the conventional tiles are peeled off from the floor, tile sheets 1 are laid out against each other on the surface of the concrete floor 6, and the tile sheets 1 are attached with an adhesive 9. (See Fig. 4)

At the abutting points of the adjacent tile sheets 1 and 1, the sticking allowances 5 of the base sheet 4 are butted against each other, so that the connecting points of the base sheets 4 pass through the middle of one of the tiles 2 and are joints. It does not overlap along the gap 8.

Since the base sheet 4 is made of a flexible material, even if there are some irregularities on the concrete floor 6 or the like to be constructed, the base sheet 4 absorbs the irregularities to prevent unevenness on the surface of the tile 2. Will be done.

Further, since the tile sheet 1 is relatively flexible, it can be easily cut along the joint with a cutter knife or the like. Therefore, the tile sheets 1 are laid out on the floor, and even when a gap smaller than the size of the tile sheet 1 finally occurs in the corner of the floor, the tile sheet 1 is installed so as to match the size of the gap. It can be easily cut and installed on site.

FIG. 5 shows an application example of the present invention, in which the tile sheet 1 is attached on the heat insulating panel 7 made of a plastic foam material.

As the heat insulating panel 7 made of a plastic foam material, urethane foam, polystyrene foam, foamed phenol resin, or the like can be adopted.

An adhesive may be applied onto the heat insulating panel 7 and the base sheet 4 of the tile sheet 1 may be attached onto the adhesive.

The heat insulating panel 7 is covered with the base sheet 4, and the base sheet 4 is provided as a waterproof layer.

1 ... Tile sheet 2 ... Tile 3 ... Joint material 4 ... Base sheet 5 ... Pasting allowance 6 ... Concrete floor 7 ... Insulation panel 8 ... Joint gap 9 ... Adhesive

Claims (3)

A base sheet made of a flexible material, which is a waterproof sheet obtained by molding a polyurea or a polyurea urethane resin composition, and a plurality of tiles bonded to the base sheet with an adhesive and arranged with a joint gap between them are provided. A tile sheet characterized by becoming. The tile sheet according to claim 1, wherein the base sheet and the plurality of tiles arranged with a joint gap are rectangular shapes having the same shape, and the tile sheets are formed by adhering them to each other so as to form a sticking allowance for eye jars. The tile sheet according to claim 1 or 2, which is attached on a heat insulating panel made of a plastic foam material.

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