JPS6252147A - Improved safety glass - Google Patents

Abstract

PURPOSE:To obtain safety glass having a little skin damage in collision, improved penetration resistance, heat resistance, water resistance and optical characteristics, by laying a specific EVA joining intermediate plate between two glass plates having heat-radiation reflecting or electrically-conductive films of coating and laminating them. CONSTITUTION:An ethylene-vinyl acetate copolymer (EVA) joining intermediate film consisting of a thermosetting or optically curable resin composition obtained by blending EVA with a heat curing agent or a photosensitizer is laid between at least two glass plates in which at least one glass plate has heat-radiation reflecting or thermally-conductive film of coating, laminated and bonded to give safety glass. Polyethylene terephthalate which has high transparency, no cloudiness, no optical strain, proper toughness and stands high temperature of 100-150 deg.C in composite processing to glass plate is most suitable as a plastic film to be applied to the glass plate.

Description

Detailed Description of the Invention "Technical Field" The present invention has heat-reflective properties and/or electrical conductivity, causes less skin damage during collision, has excellent penetration resistance, and has heat resistance, water resistance, and The present invention relates to safety glass that has excellent optical properties and is optimal for use in automobiles, other vehicles, and architecture, and in particular, safety glass that is optimal for use as safety glass for automobile windows.

"Prior art and its problems" Polyvinyl butyral laminated interlayer film (
Hereinafter, it will be abbreviated as PVB film. ) has been widely used for automobile windshields.

In addition, one of the glass plates constituting the laminated glass is coated with a heat-reflective and/or conductive metal coating, and the metal coating surface is placed on the side surface of the laminated interlayer film,
Heat-reflective and/or conductive laminated glasses with improved durability of metal coatings are also known. This type of laminated glass has a metal coating on the side of the laminated interlayer film, which improves its durability, but when water resistance tests such as boiling tests are conducted, the metal coating discolors and the PVB film shows foaming. It was found that some drawbacks occurred.

In addition, in order to improve the safety of conventional laminated glass, especially in terms of skin damage in the event of a collision, a plastic film made of polyethylene terephthalate or the like is attached to the interior side of a single glass plate or laminated glass plate using PVBIIQ. For example, Japanese Patent Application Laid-Open No. 53-19314
It has been proposed in the Publication No. Such safety glass has a highly unbreakable plastic film on the interior side, which has the advantage of reducing the risk of injury to passengers from glass fragments even if the glass pane breaks. When a plastic film is bonded to a glass plate or a laminated glass plate using PVBI12, which has a concentration of p, 1% f, and a water resistance test such as a boiling test,
The problem is that foaming occurs in VB[, and pressing scratches easily occur when a hard object is applied to the plastic film surface, which remains as permanent deformation.When heated, the plastic film surface becomes uneven and the optical properties deteriorate. A shortcoming was found. In addition, when a glass plate with a metal coating as described above and a plastic red film pasted on the metal coating surface with a PVB film is subjected to the water resistance test as described above, the metal coating may discolor. P
A drawback was found that foaming occurred in the VB film.

The various drawbacks described above are thought to occur because the PVB film has poor water resistance, and because the PVB film is thermoplastic, it begins to soften at about 60°C.

The present invention was invented as a result of research with the aim of providing a safety glass that does not have the above-mentioned drawbacks. A thermosetting or photocurable resin composition prepared by blending an ethylene-vinyl acetate copolymer with a thermosetting agent or a photosensitizer between at least two glass plates having a conductive and/or conductive coating. The second invention relates to a safety glass characterized by being laminated and bonded with an EVA-based interlayer film interposed therebetween. A red film is laminated with an EVA-based interlayer film made of a thermosetting or photocurable resin composition prepared by mixing an ethylene-vinyl acetate copolymer with a thermosetting agent or a photosensitizer, This invention relates to safety glass characterized by being bonded.

"Structure of the Invention" The present invention will be described in more detail below with reference to the drawings.

1 to 4 show the safety glass according to the present invention, in which 1 is the safety glass, 2 is the glass plate, and 3 is the safety glass according to the present invention.
4 is an EVA-based laminated interlayer film, 5 is a plastic film, 6 is a surface hardening coating, and 7 is a laminated glass. Type of glass plate 8 indicates a laminated interlayer film constituting this laminated glass.

In the safety glass of the present invention, the glass plate with the heat ray reflective coating may be a single glass plate as shown in Figs. 1 to 3, or may be a single glass plate as shown in Fig. 4. The board is made of polyvinyl butyral, polyurethane,
It may be a laminated glass plate that is sandwiched and laminated by laminated interlayer films made of ethylene-vinyl acetate copolymer or the like, or it may be a double-glazed glass plate.Such a glass plate may be flat and laminated. It may be bent into a desired shape, or may be manually strengthened, fully strengthened, or partially strengthened as necessary, especially in the first to
When using a single glass plate as shown in Figure 3,
It is effective to perform reinforcement processing to a desired degree depending on the intended use. The above-mentioned glass plate is usually a transparent soda lime silicate glass plate manufactured by the float method or various other plate glass manufacturing methods, such as an ordinary glass plate, a heat ray absorbing glass plate, etc. In the case of the single-pane type glass plates shown in Figures 1 to 3, a thickness of 2 to 6 mm is appropriate;
Further, in the case of the laminated glass type glass plate 7 shown in FIG. 4, the appropriate plate thickness is 3.5 to 7 cm.

Further, the glass plate may be partially or entirely formed with a transparent colored film, an opaque colored film, a conductive printed wire for electrical heating, an antenna wire, etc., as necessary. Further, decorative processing and various other types of processing may be applied.

It is formed on the surface of the glass plate 5. As the line reflection coating, tin oxide, tin oxide doped with sb or F, indium oxide, Sn#'9-doped indium oxide,
A coating made of a metal oxide containing at least one member selected from the group consisting of titanium oxide, chromium oxide, cobalt oxide, iron oxide, zirconium oxide, aluminum oxide, etc., and Ag.
・Metal coatings such as Au, Pt, C:u, AI, Or, etc.
Or metal coatings containing these as main components, Ni-Cr,
Xl-Cr-Fe (Inconel), Ni-Qr (M
An alloy coating such as onel) is used. In the case of the above-mentioned metal coating, tin oxide, titanium oxide, indium oxide, zinc oxide, tungsten oxide, aluminum oxide, bismuth oxide, zirconium oxide, It is preferable to form a non-absorbable dielectric coating such as zinc oxide, or to form a three-layer system by sandwiching a metal coating between the above-mentioned absorbent dielectric coatings from above and below.

For example, titanium oxide/Ag
/Titanium oxide three-layer system, zinc oxide/Ag/zinc oxide three-layer system, W03/Ag, /-σ3 three-layer system, NiCr/
Examples include Ag/NiCr and N1Gr/Cu/N1Gr.

The above-mentioned heat ray reflective coatings are merely representative ones, and the heat ray reflective coatings may be further multilayered, multilayered with different types of coatings, composite films, or heat ray reflective coatings made of other materials may be selected. You can.

Note that many of the above-mentioned heat ray reflective coatings are also electrically conductive, so this coating may be used as a conductive coating for energizing heat generation, or as a conductive coating for broadcast waves such as radio and television. It may be used as a receiving antenna coating, or this coating may be used as a conductive coating for shielding radio waves.For example, a tin oxide coating doped with sb or F, or an oxide coating doped with Sn. Indium film, multilayer film containing these films, titanium oxide/Ag/titanium oxide three-layer system, zinc oxide/A
g / three-layer system of zinc oxide, W (h /Ag/11 (h three-layer system, N1Gr/Ag/NiCr, NiC3u/NiC
r and the like are useful as conductive films. Of course, it can also be used as safety glass that has a heat ray reflecting function, an energizing heating function, an antenna flight function, and a radio wave shielding function.

The heat ray reflective coating 3 is applied to the side of the glass plate 5 that is not the exposed surface 5a, that is, the side of the laminated interlayer film surface 5 in order to obtain high durability.
In the case of safety glass consisting of a plurality of glass plates, this coating 3 formed on b is formed on at least one glass plate surface, and may be provided on two glass plate surfaces. .

In the present invention, the plastic film to be attached to the glass plate in the safety glass having the structure shown in Figures 2 to 4 is a highly transparent and smooth plastic film such as polyethylene terephthalate film, polycarbonate film, polyamide film, or polyurethane film. Those having excellent properties, good optical properties, and high chemical durability can be preferably used. Among them, polyethylene terephthalate film has high transparency, no clouding, low optical distortion, and moderate toughness.
It is optimal because it can withstand high temperatures of ~150°C. The thickness of the plastic film is set to 50 μm so that it can be easily applied to curved glass plates, is not rigid enough to cause brain damage to crew members, but is not easily shattered. ~1000μm, more preferably 50μm~
The optimum thickness is about 500 μm. For example, in the case of polyethylene terephthalate film, it is 80 μm thick.
μm to 200 μm is optimal. Such plastic
The exposed side of the film is preferably coated with a surface hardening coating or a self-healing surface hardening coating that can repair scratches in order to increase resistance to scratches and abrasion. Examples of the cured film include a cured film of organic polysiloxane, an inorganic silica film, and a composite film of inorganic silica and organic polysiloxane.

In addition, as the latter self-healing surface hardening coating, thermosetting urethane such as partially crosslinked aliphatic polyurethane, thermoplastic urethane subjected to specific treatment, etc. b < 3 = r
can be lost. In the case of such a urethane film, lOμ
A thickness of approximately 1000 μm is appropriate.

In addition, the exposed surface or inner surface of such plastic film may be coated with a heat ray reflective coating, a conductive coating, or
A colored film or a decorative film can also be formed.

The EVA-based laminated interlayer film used in the present invention is formed by forming a heat- or photo-curable resin composition comprising an ethylene-vinyl acetate copolymer mixed with a thermosetting agent such as peroxide or a photosensitizer. After laminating the EVA-based laminated interlayer between a glass plate and a plastic film, the EVA-based A laminated interlayer film is bonded to a glass plate and a plastic film. The amount of vinyl acetate in the ethylene-vinyl acetate copolymer is preferably 10 to 50%, more preferably 15 to 40% by weight. If the amount of vinyl acetate is less than the above-mentioned 10%, transparency may be impaired. It is unsuitable as a laminated interlayer film for safety glass, which requires poor (1) transparency, and if the amount of vinyl acetate exceeds the above 50%, the breaking strength decreases and the elongation exceeds 1000%, making the laminated interlayer film unsuitable. In addition, it becomes difficult to form a film as a laminated intermediate film, which is undesirable.

Furthermore, the proportion of the thermosetting agent or photosensitizer added to the ethylene-vinyl acetate copolymer is preferably 0.2 to 5 parts by weight per 100 parts by weight of the ethylene-vinyl acetate copolymer. It is. Any thermosetting agent that decomposes at a temperature of about 90° C. or higher to produce radicals can be used, but examples include ketone peroxides such as methyl ethyl peroxide and cyclohexanone peroxide; Hydroperoxides such as t-butyl peroxide and cumene hydroperoxide, di-t-butyl peroxide, ethyl-3,3-di(t
-Dialkyl peroxides such as (butylperoxy)butyrate, acetyl peroxide, and propio.

Organic peroxides such as diacyl peroxides such as peroxide, peroxy esters such as t-butyl peroxyacetate and 7-butyl peroxyisobutyrate are used, and as photosensitizers, photosensitive For example, benzoin, benzophenone, benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, benzoin isobutyl ether, dibenzodyl, 5-nitroacetonaphthene. ,
Hexachlorocyclobentadiene/, varanitrodiphenyl, varanitroaniline, 2,4.8-trinitroaniline, 1,2-benzoanthraquinone, 3-methyl-1
, 3-diazo-1,9-penzanthrone, etc. are used.

In addition, in the above-mentioned EVA-based laminated interlayer film, the adhesion between the laminated interlayer film and the glass plate and between the laminated interlayer film and the plastic film is improved.1. γ-chloropropyltrimethoxysilane, vinyltrichlorosilane,
Vinyltriethoxysilane, vinyl-tris-(β-methoxyethoxy)silane, γ-methacryloxypropylmethoxysilane, β-(3,toeboxycyclohexyl)ethyl-trimethoxysilane, γ-glycidpropyltrimethoxysilane, vinyl Triacetoxysilane, γ
- Adding a silane coupling agent such as mercaptopropyltrimethoxysilane or γ-aminopropyltriethoxysilane to 100 parts by weight of the ethylene-vinyl acetate copolymer,
It is preferable to add it in a proportion of 5 parts by weight or less.

In addition, in order to improve the initial modulus of the ethylene-vinyl acetate resin that is the EVA-based composite interlayer film of the present invention and to enhance the penetration resistance that prevents penetration of an object when it collides with an object, an acryloxy group- or methacryloxy group-containing compound is added. can be added. The most common compounds serving this purpose are acrylic acid or methacrylic acid derivatives, such as their esters and amino acids.

In addition, the ethylene-vinyl acetate copolymer further contains a plasticizer,
Anti-aging agents, ultraviolet absorbers, crosslinking aids, colorants, etc. can also be added as appropriate depending on the purpose. The thickness of such an EVA-based laminated interlayer film is such that it has sufficient penetration resistance to prevent the object from penetrating when it collides with the safety glass, and even if the glass plate is broken, the fragments will be made of EVA-based interlayer film. The surface of this EVA-based laminated interlayer film, which is preferably about 0.01 m to 2 m thick to be retained by the laminated interlayer film, is treated with a satin finish or the like to improve adhesion to the glass plate. The surface may be textured, and such an EVA-based laminated interlayer film has a tensile strength of 1 from the viewpoint of penetration resistance and collision safety.
00~500kg/cm2, 1001 modulus is 3
0 to 100 kg/m2 is optimal. Note that the above values indicate values after curing of the EVA-based interlayer film.

In the safety glass of the present invention as shown in FIGS. 2 to 4,
The above-mentioned plastic film and EVA-based laminated interlayer film are laminated in advance, and the EVA-based laminated interlayer film can be easily bonded to the glass plate by its adhesive properties, by applying heat, or by pressure bonding. It is advantageous for its manufacture. The overall thickness of the laminate of the plastic film and the EVA laminated interlayer film for manufacturing safety glass is 0.
．． The optimal amount is 1 to 265 wet meals. Note that the surface of the EVA-based laminated interlayer film that is to be bonded to the glass plate may be coated with a silane coupling agent or a primer to improve adhesion to the glass plate, if necessary.

The method for manufacturing safety glass of the present invention includes stacking a glass plate on which a heat ray reflective coating is formed, an EVA-based laminated interlayer film, and a glass plate in order such that the heat ray-reflecting coating is on the EVA-based laminated interlayer film side. Prepare a laminate for laminated glass manufacturing, or use a glass plate with a heat ray reflective coating and EVA
Prepare a laminate for the glass 11 by laminating the above-mentioned heat ray reflective coating on the EVA laminated interlayer film side in order, or further layer the plastic film on the plastic film of this laminate. Furthermore, a cover glass as a holding plate is layered, or a glass plate, a PVB-based laminated interlayer film, a glass plate on which a heat-ray reflective coating is formed, an EVA-based laminated interlayer film, and a plastic working film are laminated, and the heat-ray-reflective coating is an EVA-based laminated intermediate layer. A laminate for manufacturing laminated glass is prepared in order so that the membrane side becomes the membrane side, and the laminate for manufacturing laminated glass manufactured in this way is degassed and pre-pressed in a vacuum bag, and the pre-pressed laminate is The body is heated to a temperature above the melting point of the ethylene-vinyl acetate copolymer, e.g. 80 to 180°C (PVB
If a composite interlayer film is also provided, it is heated to a temperature close to this softening point (for example, 110 to 140°C) and maintained for a predetermined period of time, for example, 10 minutes to 1 hour. If necessary, further pressure is applied. ), a method of crosslinking the above ethylene-vinyl acetate copolymer to bond and integrate a glass plate, an EVA-based laminated interlayer film, and a plastic film, or an EVA-based laminated interlayer film to which a photosensitizer has been added. When used, a laminate of a glass plate, an ERA-based interlayer film, and a plastic film is placed in a vacuum bag, degassed, and pre-pressed, and then the pre-pressed laminate is irradiated with light. Typical examples include a method of crosslinking the intermediate film by applying light irradiation and heating in some cases. The above-mentioned photocrosslinking light sources include those that emit light in the ultraviolet to visible range, such as ultra-high pressure mercury lamps, high-pressure mercury lamps, low-pressure mercury lamps, chemical lamps, xenon lamps, /\logen lamps, mercury-xenon lamps, carbon arc lamps, and solar lamps. Examples include light, incandescent lamps, etc. The irradiation time cannot be determined unconditionally depending on the type of lamp and the intensity of the light source, but it is about 4a tens of seconds to several tens of minutes.

[Example] Examples of the present invention will be described below.

Example 1 Ti02 (250 people) /Ag (100 people) /T
i02 (250 people) A glass plate with a three-layer heat-reflecting coating (Hanaku, 5 mm, unreinforced product) and a glass plate without a heat-reflecting coating (plate thickness 2.5 layers,
(unreinforced product) and EVA-based laminated interlayer film (Not shown in Table 1)
As shown in Figure 1, the heat ray reflective coating is EV
Prepare a laminated body for manufacturing laminated glass by stacking it so that the A-type laminated interlayer film side is on the side, and place this in a pre-pressing vacuum bag.
The pressure was reduced to 0 mm 1 g, held at 80°C for 10 minutes to perform preliminary pressure bonding, and then placed in an autoclave tank for 14
Main pressure bonding was performed at 5° C. and 15 atm for 30 minutes, and the glass was taken out from the autoclave to obtain the safety glass of sample 1.

Table 2 shows the results of a performance evaluation test for this sample I.

Example 2 Polyethylene terephthalate film (manufactured by Kijin ■, thickness 125μ■) and EVA-based composite intermediate II of No. 2 in Table 1
(thickness O-5mm) and Ti'02 (250 people)/Ag
(100 people)/TiO2 (250 people) A float glass plate (unreinforced product, thickness 3mm) on which a three-layer heat-reflecting coating is formed is made of EVA-based heat-reflecting coating as shown in Figure 2. Layer the plastic film so that the film side is facing the outer layer, and then layer a cover glass plate (thickness 2 ++ UA) on top of the above plastic film to prepare a laminate for laminated glass production, and place this in a pre-crimped vacuum bag. The pressure was reduced to 10 mmHg, and the temperature was reduced to 100°C.
After holding for 0 minutes and performing preliminary pressure bonding, it was placed in an autoclave tank, and main pressure bonding was performed for 30 minutes at 145°C and 15 atm. It was removed to obtain the safety glass of Sample 2. Table 2 shows the results of the performance evaluation test for Sample 2.

Example 3 A polyethylene terephthalate film (with a polysiloxane surface hardening film (thickness: 25 μm) formed on the surface)
Made by Toshi ■, product name "Tuft Tsubu", thickness 10 (lus +
) and Table 1 (7) NO3 (7) EVA-based laminated interlayer film (thickness: 0.2 m).
Ti02 (250 people) /Ag (100 people) /Ti02
A glass plate (plate J!; L 2', j, 3ts m, unreinforced product) with a structure of (250 people) on which a heat ray reflective coating is not formed, and a No. 3 EVA-based interlayer film (thickness 0 As shown in Figure 3, the heat ray reflective coating is placed on the EVA-based interlayer film surface side. A laminate for manufacturing laminated glass was prepared by stacking the above plastic film on top of the plastic film, and a cover glass plate for use as a presser plate (thickness: 2 am) was stacked on top of the above plastic film, and this was placed in a pre-crimping device for a length of 10 m.
The pressure was reduced to mHg, held at 100°C for 10 minutes to perform preliminary pressure bonding, and then placed in an autoclave tank at 145 °C.
℃, 15 atm for 30 minutes, remove from the autoclave, remove the cover glass plate, and sample 3.
Got the safety glass. Table 2 shows the results of the performance evaluation test for Sample 3.

Example 4 Polyethylene terephthalate film (manufactured by Toshi ■, trade name "Tuft Tsubu", thickness 100μ) with polysiloxane-based surface hardening liquid II (thickness = 5μ) formed on the surface
and JJ V A-based laminated interlayer film (thickness 0.
A safety glass laminate with a ta layer of Tio2/Ag/Ti02-based three-layer conductive reflective coating formed on the outer surface. A glass plate of 0.788 mm is sandwiched between 0.788 porcelain polyvinyl butyral laminated interlayer films and bonded by thermocompression to normal laminated glass. Then, a cover glass plate (thickness 2° C.) was layered on top of the above plastic fist film, and this was placed in a pre-crimping device, the pressure was reduced to 10 mmHg, and the temperature was heated at 100°C.
The bag was held for 10 minutes to perform preliminary pressure bonding, and the bag was removed from the vacuum bag, the cover glass plate was removed, and immediately after that, 4% to 1% was applied. Main pressure bonding was performed by irradiating ultraviolet rays for 30 seconds on each side for a total of 1 minute at a distance of 15 cm using a UV irradiation device. Table 2 shows the results of a performance evaluation test of Sample 4 manufactured in this manner.

Comparative Example 1 Intermediate EVA system combination of Example 3! Instead of I (NO3), use EVA-based interlayer film No. 5 in Table 1 (thickness 0.2 mm).
), and safety glass was produced in the same manner as in Example 2, except that a glass plate without a heat ray reflective coating was used. Table 2 shows the results of a performance evaluation test conducted on this safety glass (sample 5).

Comparative Example 2 A polyvinyl butyral EVA laminated interlayer film (Du Pant) was used instead of the EVA laminated interlayer film (No. 2) of Example 2.
Safety glass was produced in the same manner as in Example 2, except that ``Butasite'' (product name: ``Butasite'', thickness: 0.36 mm), manufactured by Co., Ltd., was used.

Table 2 shows the results of a performance evaluation test conducted on this safety glass (Sample 6).

[Operations and Effects] As is clear from the above-mentioned Examples and Comparative Examples, the safety glass of the present invention had sufficient heat ray reflection properties and sufficient electrical conductivity. Furthermore, a glass plate with a heat-reflecting coating and a glass plate without such coating, or a glass plate with a heat-reflecting coating and a plastic film can be combined into a polyvinyl butyral laminated interlayer film or a conventional ethylene-vinyl acetate laminated interlayer film. After moisture resistance and heat resistance tests were performed on the safety glass bonded together, the heat ray reflective film showed discoloration, the laminated interlayer film foamed, and the plastic film surface became uneven. The safety glass of the invention does not cause discoloration of the heat ray reflective coating, foaming of the laminated interlayer film,
Moreover, no unevenness was caused on the surface of the plastic Φ film. In addition, safety glass made by bonding a glass plate and a plastic film with a polyvinyl butyral interlayer film or a conventional ethylene-vinyl acetate copolymer interlayer film will leave behind concave deformation scratches even when pressed lightly with a fingernail. However, the seat glass of the present invention had only a few such deformation scratches.

In the safety glass laminated with the plastic film of the present invention, the EVA laminated interlayer film used in the present invention exhibits plasticity before curing, so it is easy to attach the end layer to the glass plate and the steps such as preliminary pressure bonding are also easy. However, heat curing treatment,
Alternatively, after photo-curing treatment, crosslinking of the EVA-based laminated interlayer film progresses and it begins to have the properties of a thermosetting resin, so its thermoplastic properties decrease and the above-mentioned indentation deformation scratches occur. It is thought that the occurrence will be reduced. In addition, the reduction in foaming of the safety glass of the present invention can be seen in the EV used in the present invention.
Due to the moisture resistance of the A-based interlayer film itself and the hardening process, EVA
This is thought to be because crosslinking of the composite interlayer film progresses, improving moisture resistance and heat resistance. In addition, the safety glass of the present invention has sufficient impact resistance, high moisture resistance, so it does not become cloudy, does not reduce adhesive strength, and has good impact rupture performance, especially penetration resistance at low temperatures. There is little deterioration in the glass, and even if the laminated glass breaks due to impact, there will be no separation between the laminated interlayer film and the glass plate, so it is possible to prevent glass fragments from scattering as much as possible. The safety glass of the invention is most suitable for use as a glass plate for automobiles and other various types of windows, or for windows of buildings where there is a risk of human collision.
The safety glass of the present invention has the plastic film side placed on the inside of the car and the glass plate placed on the outside of the car, thereby reducing skin damage and brain damage to occupants in the event of a collision, resulting in high safety. You can get sex.

[Brief explanation of drawings]

1 to 4 show cross-sectional views of a safety glass according to the present invention. 1. Safety glass, 2. Glass plate, 3. Heat ray reflective coating, 4.
: EVA-based laminated interlayer film, 5: Niblastic film, 6: Surface hardening film ('t. Figure 1 Figure 2 Figure 3 Figure 4

Claims (10)

[Claims] (1) Thermosetting made by blending an ethylene-vinyl acetate copolymer with a thermosetting agent or a photosensitizer between at least two glass plates each having a heat ray reflective and/or conductive coating on at least one of them. EV consisting of photocurable or photocurable resin composition
A safety glass characterized by being laminated and bonded with an A-type laminated interlayer film interposed therebetween. (2) The safety glass according to claim 1, wherein the curing agent contained in the EVA-based laminated interlayer film is a peroxide. (3) The thickness of the EVA-based interlayer film is 0.05 mm to 2 m.
The safety glass according to claim 1, characterized in that the safety glass is m. (4) Thermosetting or photosensitive glass plate with a heat-reflective and/or conductive coating and a plastic film mixed with an ethylene-vinyl acetate copolymer and a thermosetting agent or photosensitizer Safety glass characterized by being laminated and bonded with an EVA-based interlayer film made of a curable resin composition interposed therebetween. (5) at least one glass plate is an unstrengthened glass plate;
The safety glass according to claim 4, characterized in that it is one or a combination of two or more selected from the group of tempered glass plates, partially tempered glass plates, laminated glass plates, and double-glazed glass plates. (6) The safety glass according to claim 4, wherein the plastic film is a polyethylene terephthalate film. (7) The safety glass according to claim 4, wherein the surface of the plastic film is coated with a surface hardening film. (8) The safety glass according to claim 4, wherein the curing agent contained in the EVA-based laminated interlayer film is a peroxide. (9) The safety glass according to claim 4, wherein the EVA laminated interlayer film thickness is 0.05 mm to 2 mm. (10) Plastic film thickness is 0.05mm
5. Safety glass according to claim 4, characterized in that it has a thickness of 0.5 mm.