JP2001342705A - Wall panel for bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall panel for a bathroom, in which a reinforcing layer is mounted on the rear of a steel plate, in which a decorative recessed groove is formed curvedly to a surface and which is covered with a synthetic resin, and which can prevent the condensation of the rear of the steel plate. SOLUTION: A glass fiber-reinforced thermosetting resin reinforcing layer 2 is internally provided onto the rear of the steel plate 1, in which both edges 11 are bent at an approximately right angle on the rear side and the decorative recessed grooves 12 are formed curvedly to a surface and which is covered with the synthetic resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bathroom wall panel.

[0002]

2. Description of the Related Art Conventionally, bathroom wall panels in which a single gypsum board is bonded to the back surface of a synthetic resin-coated steel sheet and reinforced are known.

[0003]

However, in order to enhance the decorativeness, a single-plate gypsum board is bonded to a synthetic resin-coated steel sheet having a decorative groove formed on the surface to emulate the joint of the plate. In this case, the contact area between the two becomes small, so that they are easily peeled off, and there is a possibility that dew condensation may occur on the back surface of the space between the steel plate and the gypsum board.

The present invention solves the above-mentioned conventional problems, and a reinforcing layer is provided on the back surface of a synthetic resin-coated steel plate having a decorative groove formed on the surface to prevent dew condensation on the back surface of the steel plate. It is intended to provide a wall panel for use.

[0005]

According to a first aspect of the present invention, there is provided a bathroom wall panel having a back surface made of a synthetic resin-coated steel plate having both end edges bent substantially at right angles to the back surface and decorative grooves formed on the surface. In addition, a glass fiber reinforced thermosetting resin reinforcing layer is internally provided.

In the bathroom wall panel according to the second aspect of the present invention, a rigid urethane foam reinforcement is provided on the back surface of a synthetic resin-coated steel plate having both end edges bent at substantially right angles to the back surface and having decorative grooves formed on the surface. It is characterized in that the layer is provided internally.

In the bathroom wall panel according to the third aspect of the present invention, the post-curing elongation rate is set on the back surface of a synthetic resin-coated steel plate having both end edges bent substantially perpendicularly to the back surface and decorative grooves formed on the surface. 110%
The above-mentioned elastic sealant is applied, and a plate-like gypsum board is adhered.

In the bathroom wall panel according to any one of the first to third aspects of the present invention, the depth of the decorative groove formed on the surface of the synthetic resin-coated steel sheet is not particularly limited. 3
Generally, it is set to be about 5 mm.

In the bathroom wall panel according to the first aspect of the present invention, the means for forming the glass fiber reinforced thermosetting resin reinforcing layer is not particularly limited, and may be, for example, a hand lay-up molding method (man-made method). Or a spray-up molding method (spraying method).

The glass fiber reinforced thermosetting resin reinforcing layer preferably has a thickness of 3 to 5 mm after curing. If it is less than 3 mm, warpage may occur due to curing shrinkage,
If it exceeds 5 mm, the curing time will be long and the production efficiency will decrease.

The thermosetting resin used for forming the glass fiber reinforced thermosetting resin reinforcing layer is not particularly limited.
Examples include unsaturated polyester resins, epoxy resins, and vinyl ester resins.

The length of the glass fiber (chopped strand) used for forming the glass fiber reinforced thermosetting resin reinforcing layer is not particularly limited, but is preferably 3 to 12 mm. If it is less than 3 mm, the reinforcing effect is not sufficient,
This is because it is difficult to adjust to the irregularities on the back surface of the synthetic resin-coated steel sheet if the ratio exceeds.

The glass fiber content of the glass fiber reinforced thermosetting resin reinforcing layer is preferably 20 to 40% by weight. If the content is less than 20% by weight, the reinforcing effect is not sufficient, and 40% by weight.
This is because it is difficult to adjust to the irregularities on the back surface of the synthetic resin-coated steel sheet if the ratio exceeds.

The glass fiber reinforced thermosetting resin reinforcing layer contains a filler such as calcium carbonate, a low shrinkage agent for preventing curing shrinkage, etc., in addition to the thermosetting resin and glass fiber as main materials. Is also good.

In the bathroom wall panel according to the second aspect of the present invention, the means for forming the rigid urethane foam reinforcing layer is not particularly limited. For example, polyol, polyisocyanate,
A mixture of a foaming agent (water), a catalyst, a bubble size regulator, etc.
Even in the case of the spray method (spray foaming method) in which the back surface of the synthetic resin-coated steel sheet is ejected and foamed from a nozzle, the casting foaming method of closing the opening of the synthetic resin-coated steel sheet and injecting and foaming the mixed solution from the nozzle is not used. Or any of them.

In the bathroom wall panel according to the third aspect of the present invention, the main component of the elastic sealant is not particularly limited, and may be, for example, polyurethane, polysulfide, chloroprene rubber, silicone, modified silicone, or acrylic. Butyl rubber, styrene-butadiene rubber (SB
R) and the like.

The elongation after curing of the elastic sealant is 110% or more. If it is less than 110%, external impact cannot be sufficiently absorbed, and the gypsum board and the synthetic resin-coated steel sheet may peel off.

In the bathroom wall panel according to the third aspect of the present invention, the gypsum board is made by mixing about 10% of a lightweight material such as wood powder and perlite into plaster of Paris, and pasting cardboard on both sides to absorb the plaster of plaster. It means a plate formed by using a hardening action. A calcined gypsum mixed with a clay mainly composed of silica and alumina to form fine pores is more preferable because of its hygroscopicity.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a bathroom wall panel according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of the bathroom wall panel of the invention of claim 1, FIG. 2 is a perspective view showing an example of the bathroom wall panel of the invention of claim 2, and FIG. 1 is a perspective view showing an example of a bathroom wall panel.

Example 1 Both edges of a synthetic resin-coated steel sheet 1
As shown in FIG. 1, reference numeral 11 denotes a back surface which is bent at a substantially right angle, and a decorative groove 12 having a substantially rectangular cross section with a depth of 3 mm is formed at equal intervals by press molding on the front surface. Have been.

After the back surface of the synthetic resin-coated steel sheet 1 is lightly sanded with # 800 sandpaper and subjected to masking, a mixed solution of glass fiber having a length of 4 mm, an unsaturated polyester resin, a curing agent and a curing accelerator is added. The glass fiber reinforced thermosetting resin reinforcing layer 2 having a thickness of 3 mm was sprayed from a nozzle. The glass fiber content of the mixture was 35% by weight.

Next, the four sides of the synthetic resin-coated steel sheet 1 were clamped, and the unsaturated polyester resin was cured in a heating furnace kept at 35 ° C. to form a decorative groove on the surface to enhance the appearance. A bathroom wall panel having sufficient strength was obtained.

Example 2 Example 1 was repeated except that the glass fiber length was 12 mm, the glass fiber content was 25% by weight, and the thickness of the glass fiber reinforced thermosetting resin reinforcing layer 2 was 5 mm.
As described above, a decorative groove was formed on the surface to enhance the beauty.
A bathroom wall panel having sufficient strength was obtained.

[Example 3] Except that the glass fiber length was 12 mm, the thickness of the glass fiber reinforced thermosetting resin reinforcing layer 2 was 4 mm, and the glass fiber reinforced thermosetting resin reinforcing layer was formed by a manual deposition method. In the same manner as in Example 1, a decorative wall was formed on the surface to enhance the aesthetic appearance, and a bathroom wall panel having sufficient strength was obtained.

Example 4 The same synthetic resin-coated steel sheet 1 as in Example 1 was lightly sanded on the back surface with # 800 sandpaper and subjected to masking, followed by polyol, polyisocyanate, and a foaming agent (water). The mixed solution is sprayed from the nozzle on the back surface of the synthetic resin-coated steel sheet, as shown in FIG. 2, foamed and hardened, and a decorative groove is formed on the surface to enhance aesthetic appearance, and has sufficient strength. A bathroom wall panel was obtained.

Example 5 Example 4 was the same as Example 4 except that the opening of the synthetic resin-coated steel sheet 1 was closed using a mold, and the mixed solution was injected into the closed space from a nozzle to foam and harden.
As described above, a decorative groove was formed on the surface to enhance the beauty.
A bathroom wall panel having sufficient strength was obtained.

Example 6 A one-part polyurethane elastic sealant ("Esdine U-738" manufactured by Sekisui Chemical Co., Ltd., 200% elongation after curing) was applied to the back surface of the same synthetic resin-coated steel sheet 1 as in Example 1. Is applied from the nozzle so that the coating film is also continuous on the back surface of the decorative groove 12, and as shown in FIG. 3, the entire surface of the single-plate gypsum board 5 having a thickness of 12 mm is adhered and cured. Then, a decorative wall was formed on the surface to enhance the aesthetic appearance, and a bathroom wall panel having sufficient strength was obtained.

Example 7 A two-component polyurethane elastic sealant ("Esdine # 556" manufactured by Sekisui Chemical Co., Ltd., elongation after curing of 110%) was applied to the back surface of the synthetic resin-coated steel sheet 1 except that it was applied. A bathroom wall panel having sufficient strength and having a decorative groove formed on the surface as in Example 6 to enhance the appearance was obtained.

[0029]

Since the bathroom wall panel according to the first aspect of the present invention is constructed as described above, the rear surface of the synthetic resin-coated steel plate having a decorative groove formed on the surface is formed on the back surface of the glass fiber reinforced thermosetting resin. The resin reinforcing layer is provided inside, and the dew condensation on the back surface of the steel plate can be prevented.

Since the bathroom wall panel according to the second aspect of the present invention is configured as described above, a hard urethane foam reinforcing layer is internally provided on the back surface of the synthetic resin-coated steel sheet having a decorative groove formed on the surface. Thus, dew condensation on the back surface of the steel plate can be prevented.

Since the bathroom wall panel according to the third aspect of the present invention is constructed as described above, the gypsum board is firmly adhered to the back surface of the synthetic resin-coated steel plate having a decorative groove formed on the surface, Dew condensation on the back of the steel plate can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a bathroom wall panel according to the present invention.

FIG. 2 is a perspective view showing an example of a bathroom wall panel according to the invention of claim 2;

FIG. 3 is a perspective view showing an example of a bathroom wall panel according to the invention of claim 3;

[Explanation of symbols]

 Reference Signs List 1 synthetic resin-coated steel sheet 2 glass fiber reinforced thermosetting resin reinforcing layer 3 hard urethane foam reinforcing layer 4 elastic sealant 5 gypsum board 11 edge 12 decorative groove

Continued on the front page F term (reference) 2E001 DB05 DD01 FA03 FA42 GA12 GA15 GA42 HA00 HB02 HD01 HD03 HD11 JA22 2E110 AA14 AB04 AB23 AB42 BA03 BA12 BB22 BD02 GA24X GA32W GA33W GA33X GB02W GB16X GB32X GB42W GB42X GB54X2E162 CA16 CD16

Claims (3)

[Claims] 1. A synthetic resin-coated steel sheet having both ends bent at a substantially right angle to the back side and a decorative groove formed on the front side,
A bathroom wall panel comprising a glass fiber reinforced thermosetting resin reinforcing layer provided therein. 2. A back surface of a synthetic resin-coated steel sheet having both end edges bent at a substantially right angle to the back surface side and a decorative groove formed on the front surface,
A bathroom wall panel comprising a rigid urethane foam reinforcing layer provided therein. 3. A synthetic resin-coated steel sheet having both end edges bent at substantially right angles to the back side and decorative grooves formed on the front side,
After curing, an elastic sealant with an elongation of 110% or more is applied,
A bathroom wall panel, wherein a plate-like gypsum board is adhered.