JPH0340944A - Multifunctional glass - Google Patents

Abstract

PURPOSE:To impart both the function of fireproof glass and the function of reinforced glass by providing both a transparent fireproof coating layer and a transparent film layer interrupting ultraviolet rays between two sheets of glass plates becoming the outermost layers. CONSTITUTION:Both a sodium silicate-based filmlike transparent fireproof coating layer 2 and a transparent film layer 3 which interrupts ultraviolet rays and transmits visible rays are laminated between two sheets of glass plates 1a, 1b becoming the outermost layers. The transparent film layer 3 is arranged to the outside. In this multifunctional glass, the transparent film layer 3 interrupts ultraviolet rays of the sun and therefore deterioration of the fireproof coating layer 2 due to ultraviolet rays can be avoided. At a time of fire disaster, the heated glass plate 1a of the outermost layer is cracked and the fireproof coating layer 2 is heated. Thereby the sodium silicate-based fireproof coating is foamed to form a foamed layer 2'. This foamed layer 2' resists fire to protect glass. Furthermore the fireproof coating layer 2 has a function relaxing impact given to glass.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to multifunctional glass that can be applied to window glass for openings that pose a safety problem, dome roofing materials, half-mirror curtain walls, etc. The functions of glass and the ability of tempered glass to withstand external impacts to a certain extent,
Furthermore, it is equipped with functions such as blocking ultraviolet rays and transmitting visible rays.

[Prior Art] Wired glass is generally known as fireproof glass and tempered glass. Wired glass is a glass made of wire or the like that is built into a mesh inside the glass.

Also, as a fireproof and heat-resistant glass, quartz glass containing only pure silicic acid anhydride is known.

It has a small coefficient of expansion and can withstand heat up to about 1100°C. Furthermore, there are types of glass that have a single function, such as glass that has a transparent film that blocks ultraviolet rays, and fire-retardant glass that has a layer of fire-retardant paint laminated between glass plates.

[Problems to be Solved by the Invention] The wired glass described in the prior art has a problem in that the inherent transparency of the glass is impaired because a steel mesh or the like is inserted into the glass. Therefore, it is not desirable in terms of design and cannot be evaluated very well.

Furthermore, glass has good thermal conductivity, so it allows hot air to escape from a heated room and allows direct heat to enter the room, raising the room temperature in an air-conditioned room. Therefore, there was a problem in that a large load was placed on the indoor air conditioner. In addition, although there are fire-retardant glasses and glasses that block ultraviolet rays, there are various manufacturing and strength problems in providing these multiple functions.

The present invention solves these problems and has the functions of fire-retardant glass and tempered glass, as well as the ability to block ultraviolet rays and transmit visible light without impairing the original transparency of glass. The aim is to provide multi-functional glass.

[Means for Solving the Problems] The multifunctional glass of the present invention has a sodium silicate-based transparent fireproofing paint layer and a transparent coating that blocks ultraviolet rays and transmits visible rays between two glass plates serving as the outermost bag. A film layer was laminated.

In addition, a transparent film layer is laminated on the outside and a transparent fireproofing paint layer is laminated on the inside of each glass plate that serves as the outermost bag.
Fire prevention and heat resistance may be strengthened by sandwiching two glass plates with a transparent fire prevention paint layer interposed between the pair of transparent fire prevention paint layers.

Furthermore, dew condensation can be prevented by forming a conductive vapor deposition layer on the outside of the transparent film layer and providing electrodes at both ends of the vapor deposition layer to enable electricity to flow. Furthermore, a liquid crystal temperature-sensitive paint layer may be interposed between the two glass plates serving as the outermost bag to provide a blindfold or sunshade function.

[Function] In the multifunctional glass of the above means, a sodium silicate-based transparent fireproofing paint layer and a transparent film layer that blocks ultraviolet rays and transmits visible rays are laminated between two glass plates serving as the outermost bag. Therefore, ultraviolet rays are blocked by half, but a large amount of visible light, which is the source of brightness, can be transmitted with a transmittance of 60 to 80%. In the event of a fire, the heated glass in the outermost bag breaks due to the heat of the flames. Furthermore, when the heat of the flame reaches the fireproof paint layer, the fireproof paint foams to form a foamed layer containing many air layers. This foam layer has a fire and heat resistant function as it resists fire.

In addition, a conductive vapor deposition layer is formed on the outside of the transparent film layer,
When electrodes are provided at both ends of the vapor-deposited layer to enable electricity to flow, the glass is warmed by the heat generation effect of the transparent film, thereby preventing dew condensation. Furthermore, since it reflects 80 to 90% of the radiant heat indoors and outdoors, it is possible to prevent the inflow of radiant heat.

When a transparent film with a conductive vapor-deposited layer formed on the outside is combined with a film-like liquid crystal temperature-sensitive paint, it becomes a blindfold or sunshade that changes the transparency of the glass by sensing the heat generated by the conductive vapor-deposited layer.

[Example] A first embodiment of the present invention will be described below with reference to FIG.

The multifunctional glass of this example consists of two glass plates 1a and lb
In between is a film-like sodium silicate-based transparent fire-retardant paint layer 2.
A transparent film layer 3 made of polyester, for example, which blocks ultraviolet rays and transmits visible rays, is laminated thereon.

When installing this multifunctional glass indoors, glass plate 1
The transparent film layer 3 laminated between a and lb faces outward, and the fireproof paint layer 2 is disposed inside.

In the multifunctional glass configured in this way, since the transparent film layer 3 blocks ultraviolet rays from the sun, it is possible to avoid deterioration of the fireproof paint layer 2 due to the ultraviolet rays.

Therefore, the durability of the fireproof paint layer 2 is improved.

In addition, multifunctional glass has a fire prevention function, and in the event of a fire, the heated glass plate 1a of the outermost bag will break and the fire prevention paint layer 2 will break.
heat up. Then, the sodium silicate fireproofing paint foams due to the heat, forming a foam layer 2° as shown in FIG. This foam layer 2° contains many air layers,
Since it resists fire, it protects the glass and acts as a fire and heat resistant material. Furthermore, the fireproofing paint layer 2 has a function of softening the impact received by the glass, and will not cause the glass to scatter due to impact such as an explosion.

Next, a second embodiment will be described using FIG. 3.

The multifunctional glass of this embodiment is made by laminating four glass plates 4a, 4b, 4c, and 4d to increase the heat resistance time. Each glass plate 4 a + 4 b *
Between 4c and 4d, a film-like sodium silicate-based transparent fireproofing paint layer 2 is laminated, and a transparent film layer 3a that blocks ultraviolet rays and transmits visible rays,
3b to the glass plates 4a and 4d of the outermost bag on the indoor side and the outdoor side.
Laminated on the inside of. Furthermore, the glass plate 4a on the indoor side
For example, a thin indium oxide film is deposited on the outer surface of the transparent film layer 3a stacked on the transparent film layer 3a to form a conductive deposited layer 5, and electrodes 6 are provided at both ends of the deposited layer 5 to enable electricity to flow. When a voltage is applied to this electrode 6 and a current is caused to flow, the internal resistance of the vapor deposited layer 5 warms the glass plate and prevents dew condensation. By providing this conductive vapor deposition layer 5, radiation heat from indoors or outdoors can be reflected.

Further, as shown in FIG. 4, a conductive vapor deposition layer 5 provided with an electrode 6
If a film-like liquid crystal temperature-sensitive paint layer 7 is laminated on the glass, the liquid crystal temperature-sensitive paint is heated and reacts with the conductive vapor deposited layer 5 to erase the transparency of the glass, thereby functioning as a blindfold or sunshade.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and it is possible to combine a fireproof paint layer, an ultraviolet blocking film layer, a vapor deposition layer, and a liquid crystal temperature-sensitive paint layer between the glass plates in an appropriate order.

[Effects of the Invention] The multifunctional glass of the present invention includes a fireproof paint layer and a transparent film layer that blocks ultraviolet rays and transmits visible rays, which are laminated between laminated glass plates.

Therefore, compared to wired glass, which is conventional fireproof glass, it does not impair the transparency of the glass.

Furthermore, heat resistance can be adjusted by adjusting the number of laminated glass plates and fireproof paint layers. Furthermore, by laminating multiple layers of transparent sodium silicate fireproofing paint, the impact can be softened when an impact is applied. Therefore, the glass is hard to break and can be prevented from scattering, and can also resist impacts such as explosions. Furthermore, it is very safe when applied to window glass of high-rise buildings, dome roofing materials, curtain walls of half mirrors, etc., which require safety.

Transparent films made mainly of polyester have the ability to block ultraviolet rays and transmit visible rays, so they reduce the power consumption of air conditioners and are highly economical. Furthermore, it is convenient to provide an electrically conductive vapor deposited layer on the outside of the transparent film layer, and to provide electrodes at both ends of this vapor deposited layer to conduct electricity, since dew condensation can be prevented. It also reflects heat radiation from indoors and outdoors, saving fuel consumption for air conditioners and heaters. When a liquid crystal temperature-sensitive paint layer is combined with a conductive vapor-deposited layer provided with electrodes, the color can be changed.
Can be used as a blindfold or sunshade.

Furthermore, since the conductive vapor deposited layer reflects radio waves, it can also be used as an electromagnetic shield.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view showing the first embodiment of the present invention, FIG. 2 is a partial sectional view showing the action in the event of a fire, FIG. 3 is a partial sectional view showing the second embodiment of the invention, and FIG. The figure is a configuration diagram of an embodiment that has a blindfold and sunshade function.

Claims (4)

[Claims] (1) Multifunctional glass characterized by laminating a sodium silicate-based transparent fireproofing paint layer and a transparent film layer that blocks ultraviolet rays and transmits visible rays between the two outermost glass plates. . (2) Laminate a transparent film layer on the outside and a transparent fire-retardant paint layer on the inside of each outermost glass plate,
2. The multifunctional glass according to claim 1, wherein two glass plates with a transparent fire prevention paint layer interposed between the pair of transparent fire prevention paint layers are sandwiched. (3) Forming a conductive vapor deposition layer on the outside of the transparent film layer,
The multifunctional glass according to claim 1 or 2, wherein electrodes are provided at both ends of the vapor deposited layer to enable electricity to flow. (4) The multifunctional glass according to claim 1, 2 or 3, wherein a liquid crystal temperature-sensitive paint layer is interposed between the two outermost glass plates.