TW201637859A - Glass/resin transparent laminate for window - Google Patents

Abstract

Provided is a glass/resin transparent laminate for windows which retains scratch resistance and through which the inside of a machine tool, clean bench, glovebox, or the like can be seen while avoiding the reflection therein of external light from, for example, a fluorescent lamp. The glass/resin transparent laminate for windows is characterized by comprising: a transparent resin layer; a first glass layer disposed over the transparent resin layer; a second glass layer disposed over the surface of the transparent resin layer which is on the reverse side from the first glass layer; a first transparent adhesive layer which has been disposed between the transparent resin layer and the first glass layer and with which the transparent resin layer and the first glass layer are bonded to each other; a second transparent adhesive layer which has been disposed between the transparent resin layer and the second glass layer and with which the transparent resin layer and the second glass layer are bonded to each other; a first antireflection layer disposed on the surface of the first glass layer which is on the reverse side from the transparent resin layer; and a second antireflection layer disposed on the surface of the second glass layer which is on the reverse side from the transparent resin layer.

Description

Window glass transparent laminated body

The present invention relates to a glass resin transparent laminated body for a window which is represented by a window such as a machine tool window, a cleaning table or a glove box, and which is required to have scratch resistance and visibility.

A transparent resin body containing a polycarbonate or an acrylic resin is excellent in light weight and transparency, and has impact resistance. Therefore, it is used in window materials such as window windows of machine tools where impact resistance is particularly required. However, in the case of a window for a machine tool or the like, the transparent resin body has a low scratch resistance as compared with glass, and therefore has a defect that it is easily injured due to scattered chips or the like during operation of the machine tool. For this reason, in recent years, a laminated board in which a glass plate excellent in scratch resistance is bonded to a transparent resin body has been disclosed.

As a laminated board in which a glass plate is bonded to a transparent resin body, for example, a surface of the coating layer of a polycarbonate resin sheet provided with an anthraquinone hard coat layer is passed through a bonding layer containing a polyurethane resin. A laminated board in which a glass plate is joined (refer to Patent Document 1).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2001-205742

However, when the laminated board described in Patent Document 1 is used for a window for a test machine such as a window of a machine tool, a cleaning table, or a glove box, there are the following problems: The surface of the laminated board is reflected by external light such as a fluorescent lamp, and it becomes difficult to visually recognize the inside of a machine tool or a cleaning table or a glove box.

The main object of the present invention is to provide a glass resin for windows which can be visually recognized by a machine tool, a cleaning table, a glove box or the like without being reflected by external light such as a fluorescent lamp while maintaining impact resistance or scratch resistance. Laminated body.

The glass resin transparent laminated body for windows according to the present invention is characterized by comprising: a transparent resin layer; a first glass layer provided on the transparent resin layer; and a second glass layer provided on the transparent resin layer and the first a surface of the opposite side of the glass layer; a first transparent adhesive layer disposed between the transparent resin layer and the first glass layer, and the transparent resin layer and the first glass layer; the second transparent layer a layer disposed between the transparent resin layer and the second glass layer, and the transparent resin layer and the second glass layer; the first anti-reflective layer disposed on the first glass layer and the transparent layer a surface on the opposite side of the resin layer; and a second anti-reflection layer provided on a surface of the second glass layer opposite to the transparent resin layer.

In the glass resin transparent laminate of the window according to the present invention, it is preferable that the first glass layer and/or the second glass layer have a thickness of 300 μm or less.

In the glass resin transparent laminate of the window according to the present invention, it is preferable that the transparent resin layer has a larger total thickness than the first glass layer and the second glass layer.

In the glass resin transparent laminate of the window according to the present invention, it is preferable that a total thickness of the first glass layer and the second glass layer is 0.1 times or less the thickness of the transparent resin layer.

In the glass resin transparent laminate for windows of the present invention, it is preferable that the first glass layer and/or the second glass layer be an alkali-free glass.

In the glazing transparent laminate of the window of the present invention, preferably, the first antireflection layer and/or the second antireflection layer have a relatively low refractive index and a low refractive index. The layer is formed by alternately laminating a high refractive index layer having a relatively high refractive index.

In the glass resin transparent laminate of the window of the present invention, it is preferable to further include a first water repellent layer provided on a surface of the first antireflection layer opposite to the first glass layer.

In the glass resin transparent laminate for windows of the present invention, it is preferred that the first water repellent layer contains fluorine.

In the glass resin transparent laminate of the window of the present invention, it is preferable to further include a second water repellent layer provided on a surface of the second antireflection layer opposite to the second glass layer.

In the glass resin transparent laminate for windows of the present invention, it is preferred that the second water repellent layer contains fluorine.

The glass resin transparent laminate of the window of the present invention preferably further comprises a hydrophilic layer provided on a surface of the second antireflection layer opposite to the second glass layer.

The glass resin transparent laminate for windows of the present invention is preferably used for a window of a machine tool.

According to the present invention, it is possible to provide a glass-film resin transparent laminate which can be visually recognized by a machine tool, a cleaning table, a glove box or the like without being reflected by external light such as a fluorescent lamp while maintaining scratch resistance.

1‧‧‧Window glass transparent laminated body

2‧‧‧Transparent resin layer

3‧‧‧First glass layer

4‧‧‧Second glass layer

5‧‧‧First transparent layer

6‧‧‧Second transparent layer

7‧‧‧First anti-reflection layer

8‧‧‧Second anti-reflection layer

11‧‧‧First water layer

12‧‧‧Second water layer

13‧‧‧Hydrophilic layer

Fig. 1 is a schematic cross-sectional view showing a glass resin transparent laminated body for a window according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view showing a glass resin transparent laminated body for a window according to another embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view showing a glass-resin transparent laminated body for a window according to another embodiment of the present invention.

Hereinafter, an example of a preferred embodiment of the present invention will be described. However, the following embodiments are merely illustrative. The present invention is not limited by the following embodiments.

In the drawings, which are referred to in the embodiments and the like, members having substantially the same functions are referred to by the same reference numerals. In addition, the pattern referred to in the embodiment and the like is schematically described as a case where the ratio of the size of the object drawn in the drawing and the ratio of the size of the actual object are different. The patterns are different from each other in terms of the size ratio of the objects. The size ratio of the specific object should be judged by referring to the following instructions.

Fig. 1 is a schematic cross-sectional view showing a glass resin transparent laminated body for a window according to an embodiment of the present invention. As shown in FIG. 1, the glazing resin transparent laminate 1 for a window is provided with a transparent resin layer 2, a first glass layer 3, a second glass layer 4, a first transparent adhesive layer 5, a second transparent adhesive layer 6, and a first anti-reflection. Layer 7, and second anti-reflection layer 8.

The transparent resin layer 2 is not particularly limited as long as it is a transparent resin, and for example, polyethylene, polyvinyl chloride, polyethylene terephthalate, polyvinylidene chloride, polypropylene, polyvinyl alcohol, polyester, poly can be used. Styrene, polyacrylonitrile, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene-methacrylic acid copolymer, acrylic resin, polycarbonate, and the like. In particular, in terms of excellent transparency, an acrylic resin or a polycarbonate is preferably used.

As shown in FIG. 1, the first glass layer 3 is provided on the transparent resin layer 2. The second glass layer 4 is provided on the surface of the transparent resin layer 2 opposite to the first glass layer 3. Thereby, the transparent resin layer 2 which is inferior in scratch resistance can be suitably protected.

The first glass layer 3 and the second glass layer 4 are not particularly limited as long as they are transparent glasses, and for example, cerium oxide glass, borosilicate glass, soda lime glass, alkali-free glass, or aluminum silicate glass can be used. Acid salt glass. In particular, in terms of excellent scratch resistance, alkali-free glass is preferably used. Here, the alkali-free glass refers to a glass which does not substantially contain an alkaline component (alkali metal oxide), and specifically, a glass having a content of an alkaline component of 1000 ppm or less by weight. The content of the alkaline component in the present invention is preferably 500. Below ppm, more preferably below 300 ppm.

The same type of glass may be used for the first glass layer 3 and the second glass layer 4, and different types of glass may be used. For example, when the surface of the machine tool or the like is provided with the first glass layer as the inner side and the glass resin transparent laminated body 1 for the window is used, it can be exposed in an environment where the chips are easily scattered during the operation of the machine tool. On the first glass layer 3 on one side, an alkali-free glass excellent in scratch resistance is used, and an inexpensive soda lime glass or the like may be used on the second glass layer 4.

The thickness of the first glass layer 3 and the second glass layer 4 is preferably 300 μm or less, more preferably 20 μm to 200 μm, and particularly preferably 50 μm to 100 μm. As a result, in the glazing resin transparent laminated body 1, the ratio of the first glass layer 3 to the second glass layer 4 is reduced, so that the weight of the glazing resin transparent laminated body 1 can be reduced. When the thickness of the first glass layer 3 and the second glass layer 4 is too large, the weight of the first glass layer 3 and the second glass layer 4 increases in the glazing resin transparent laminated body 1, so that it is difficult to realize the glass resin for windows. The weight of the transparent laminate 1 is reduced. On the other hand, if the thickness of the first glass layer 3 and the second glass layer 4 is too small, the strength of the first glass layer 3 and the second glass layer 4 tends to be insufficient, and the flying material or the like is transparent to the glazing resin. When the laminated body 1 is subjected to impact, the first glass layer 3 and the second glass layer 4 are liable to be damaged. Further, in this case, since the first glass layer 3 and the second glass layer 4 are supported by the transparent resin layer 2, the first glass layer 3 and the second glass layer 4 do not scatter after being damaged, and the inside can be protected. Device or sample, etc.

The thickness of the first glass layer 3 and the second glass layer 4 may be the same thickness or different thicknesses. For example, when the window glass transparent laminated body 1 is used for a window of a machine tool or the like, the thickness of the first glass layer 3 which is easily scattered to the side exposed to the environment such as chips or the like can be set to be large (for example, 100 μm), the thickness of the second glass layer 4 is set to be small (for example, 50 μm).

The total thickness of the first glass layer 3 and the second glass layer 4 is preferably smaller than the thickness of the transparent resin layer 2, and more preferably 0.1 times or less the thickness of the transparent resin layer 2. In this way, in the window glass In the glass-resin transparent laminated body 1, the proportion of the transparent resin layer 2 is increased. Therefore, the weight of the glass-line resin transparent laminate 1 as a whole can be further reduced, and the weight of the glass-filled resin transparent laminated body 1 can be more effectively achieved.

The density of the first glass layer 3 and the second glass layer 4 is preferably lower. Thereby, the weight of the first glass layer 3 and the second glass layer 4 can be reduced, and the weight of the glass resin transparent laminated body 1 for windows can be reduced. Specifically, the density of the first glass layer 3 and the second glass layer 4 is preferably 2.6 g/cm ³ or less, more preferably 2.5 g/cm ³ or less.

The Young's modulus of the first glass layer 3 and the second glass layer 4 is preferably higher. Thereby, even if the thickness of the first glass layer 3 and the second glass layer 4 is as thin as 300 μm or less, it is less likely to be bent by its own weight. The Young's modulus of the first glass layer 3 and the second glass layer 4 is preferably 70 GPa or more. Thereby, the glass resin transparent laminated body 1 for windows can be made lightweight and the member which requires rigidity is also possible.

The first glass layer 3 and the second glass layer 4 used in the present invention preferably comprise a glass film. As a method of forming the glass film constituting the first glass layer 3 and the second glass layer 4, a well-known overflow down-draw method, a flow-down method, a float method, a roll forming method, or the like can be used, but in particular, overflow The down-draw method is preferable because a glass film having less warpage, smoothness (smaller surface roughness), and small thickness can be produced in a large amount and at low cost. The glass film produced by the overflow down-draw method does not need to adjust the thickness of the glass film by grinding or grinding, chemical etching, or the like. Further, the overflow down-draw method is a molding method in which both sides of the glass sheet are not in contact with the forming member at the time of molding, and the both sides (transparent surface) of the obtained glass sheet are forged surfaces, and high surface quality can be obtained even without grinding. . Thereby, the first glass layer 3 or the second glass layer 4 and the transparent resin layer 2 can be laminated more accurately and precisely.

The first transparent adhesive layer 5 is disposed between the transparent resin layer 2 and the first glass layer 3, and the transparent resin layer 2 is followed by the first glass layer 3. The second transparent adhesive layer 6 is disposed between the transparent resin layer 2 and the second glass layer 4, and the transparent resin layer 2 and the second glass layer 4 are followed. Thereby, the first glass layer 3 and the second glass layer 4 can be more strongly supported by the transparent resin layer 2, Therefore, the first glass layer 3 and the second glass layer 4 are less likely to be damaged, and the internal device, the sample, and the like can be protected.

The first transparent adhesive layer 5 and the second transparent adhesive layer 6 are not particularly limited, and a double-sided adhesive sheet, a thermoplastic adhesive sheet, a heat-crosslinkable adhesive sheet, an energy-curable liquid adhesive, or the like can be used, and for example, optical can be used. Transparent adhesive sheet (OCA), ethylene-vinyl acetate copolymer resin (EVA), thermoplastic polyurethane (TPU), polyvinyl butyral (PVB), ionic resin, acrylic thermoplastic sheet, UV curing type A subsequent agent, a thermosetting adhesive, a room temperature curing adhesive, or the like is subsequently applied. In the case of using an adhesive, it is preferred to use an adhesive which is then in a transparent state. Moreover, when the first transparent adhesive layer 5 and the second transparent adhesive layer 6 have ultraviolet shielding properties (absorption of ultraviolet rays), it is possible to prevent the transparent resin layer 2 from being deteriorated by ultraviolet rays.

The light transmittance of the first transparent adhesive layer 5 and the second transparent adhesive layer 6 is preferably 90% or more, more preferably 92% or more, and particularly preferably 94% or more in a wavelength region of 430 nm to 680 nm. Thereby, the visibility to the inside of a machine tool, a cleaning table, a glove box, etc. can be improved.

The thicknesses of the first transparent adhesive layer 5 and the second transparent adhesive layer 6 are preferably 25 μm to 1000 μm, more preferably 25 μm to 800 μm, and particularly preferably 50 μm to 500 μm. When the thickness of the transparent adhesive layer is too small, it becomes difficult to absorb the difference in expansion and contraction caused by the difference in thermal expansion between the transparent resin layer 2 and the first glass layer 3 and the second glass layer 4. On the other hand, if the thickness of the transparent adhesive layer is too large, the light transmittance of the first transparent adhesive layer 5 and the second transparent adhesive layer 6 tends to be lowered.

The haze of the first transparent adhesive layer 5 and the second transparent adhesive layer 6 is preferably 2% or less, more preferably 1% or less, and particularly preferably 0.5% or less. By this means, when a material having a high transparency such as acrylic or polycarbonate is used as the transparent resin layer 2, the glass-line resin transparent laminate 1 having a high transparency can be obtained. Further, the haze can be measured based on JIS K 7136 (2010) using a fog meter (for example, NDH-5000 manufactured by Nippon Denshoku Industries Co., Ltd.).

The first anti-reflection layer 7 is provided on the surface of the first glass layer 3 opposite to the transparent resin layer 2. The second anti-reflection layer 8 is provided on the surface of the second glass layer 4 opposite to the transparent resin layer 2. Thereby, it is possible to produce a glass-line resin transparent laminated body 1 which can be visually recognized by a machine tool, a cleaning table, a glove box or the like without reflection by external light such as a fluorescent lamp.

The first anti-reflection layer 7 and the second anti-reflection layer 8 preferably contain an inorganic material. Thereby, the scratch resistance of the glazing resin transparent laminated body 1 can be further improved.

The first anti-reflection layer 7 and the second anti-reflection layer 8 preferably include, for example, a low refractive index layer having a lower refractive index than the first glass layer 3 and the second glass layer 4, respectively. Further, the first anti-reflection layer 7 and the second anti-reflection layer 8 are more preferably an alternate layer in which, for example, a low refractive index layer having a relatively low refractive index and a high refractive index layer having a relatively high refractive index are alternately laminated. In the case of the alternating layer, the total number of layers of the first anti-reflection layer 7 and the second anti-reflection layer 8 is preferably 8 or more, and since the visual reflectance of the glass-resin transparent laminated body 1 is 0.5% or less, it is preferable; In the case of the glazing resin transparent laminate 1 of the window, the visual reflectance of the glazing resin transparent laminated body 1 is more than 0.2%, and the visual reflectance of the glazing resin transparent laminated body 1 is 0.16% or less. Therefore, it is especially good. When the total number of layers of the first anti-reflection layer 7 and the second anti-reflection layer 8 is too small, it is easy to cause reflection by external light such as a fluorescent lamp, and it is difficult to visually recognize the inside of a machine tool, a cleaning table, a glove box or the like. On the other hand, the total number of layers of the first antireflection layer 7 and the second antireflection layer 8 is preferably 40 or less, more preferably 35 or less, and particularly preferably 30 or less. If the total number of layers of the first anti-reflection layer 7 and the second anti-reflection layer 8 is too large, the layers of the first anti-reflection layer 7 or the second anti-reflection layer 8 are easily peeled off and are not saved. The number of layers of the first anti-reflection layer 7 and the second anti-reflection layer 8 is preferably the same, more preferably the composition or the thickness of each layer is completely the same.

Further, the visual reflectance is the chromaticity Y of the tristimulus value specified in JIS Z 8701 (1999), and the chromaticity Y can be measured from the second antireflection layer using a spectrophotometer (manufactured by Hitachi, U-4100). The reflectance of the side surface is obtained by calculation based on the above JIS. At this time, the angle of view is set to 12°.

The low refractive index layer preferably contains one selected from the group consisting of cerium oxide, aluminum oxide, and magnesium fluoride, and the total physical thickness of the low refractive layer in one side is preferably from 100 nm to 700 nm. Further, as the high refractive index layer, it is preferable to contain a material selected from the group consisting of tantalum nitride, aluminum nitride, lanthanum oxynitride, aluminum oxide, zirconium oxide, cerium oxide, cerium oxide, cerium oxide, titanium oxide, tin oxide, and zinc oxide. In one of the group of compositions, the total physical thickness of the high refractive index layer in one side is preferably from 50 nm to 250 nm.

As a method of forming the first anti-reflection layer 7 on the first glass layer 3 and a method of forming the second anti-reflection layer 8 on the second glass layer 4, a sputtering method, a vacuum evaporation method, a dipping method, and a spin coating method can be used. Method, method such as ion plating, CVD (chemical vapor deposition), but especially if sputtering is used, the thickness of each layer is uniform, and the first glass layer 3 or the second glass layer 4 It is then strong, and the hardness of the first anti-reflection layer 7 and the second anti-reflection layer 8 is high, which is preferable. In particular, when the thickness of the first glass layer 3 or the second glass layer 4 is thin, the heating temperature tends to rise. Further, since the heat resistance is low, it is difficult to use a film forming method with heating on the surface of the transparent resin body, but the first antireflection layer 7 and the second antireflection layer 8 are formed on the first glass layer 3 and the second, respectively. After the surface of the glass layer 4 is formed, the transparent resin layer 2 and the first glass layer 3 and the second glass layer 4 are laminated via the first transparent adhesive layer 5 and the second transparent adhesive layer 6 respectively, thereby enabling lightweight production. It is highly resistant to scratches, is not easily bendable, and can be used to visualize the glass-lined resin transparent laminated body 1 for a window inside a machine tool, a cleaning table, or a glove box without being reflected by external light such as a fluorescent lamp.

Fig. 2 is a schematic cross-sectional view showing a glass resin transparent laminated body for a window according to another embodiment of the present invention. As shown in FIG. 2, the glass resin transparent laminated body 1 for windows has a transparent resin layer 2, a first glass layer 3, a second glass layer 4, a first transparent adhesive layer 5, a second transparent adhesive layer 6, and a first anti-reflection. The layer 7, the second anti-reflection layer 8, the first water-repellent layer 11, and the second water-repellent layer 12.

The first water-repellent layer 11 is disposed on a surface of the first anti-reflection layer 7 opposite to the first glass layer 3 Above. The second water-repellent layer 12 is disposed on a surface of the second anti-reflection layer 8 opposite to the second glass layer 4. The first water-repellent layer 11 and the second water-repellent layer 12 have a function of preventing adhesion of water droplets or chips or the like adhering to the surface of a window of the machine tool or the like, or preventing mist caused by a human breath. The material of the first water repellent layer 11 and the second water repellent layer 12 may be any one as long as it has water repellency, and examples thereof include an alkyl group-containing decane compound, an alkyl group-containing fluorene compound, a fluorine-containing decane compound, and fluorine. An alkyl decazane, a fluoroalkyl decane, a fluorine-containing fluorene-based compound, a perfluoropolyether-containing decane coupling agent, and the like. In particular, the first water repellent layer 11 and the second water repellent layer 12 are preferably a fluorine-containing decane compound, a fluoroalkyl decazane, a fluoroalkyl decane, a fluorine-containing lanthanide compound, or a perfluoropolyether group. Such a fluorine-containing coupling agent or the like. In this way, not only the water repellency but also the oil repellency and the low friction property can be imparted, so that contamination of the surface of the glazing resin transparent laminate 1 or adhesion of fingerprints can be prevented, and the glazing resin transparent laminate 1 can be further improved. It is resistant to scratches.

The first water-repellent layer 11 and the second water-repellent layer 12 can also be dipped by a micro-gravure method, a screen coating method, or the like, in addition to a vacuum dry process such as a vapor deposition method, a sputtering method, a CVD method, or a plasma polymerization method. It is formed by a wet process such as a coating method or a spray method. The thickness of the first water-repellent layer 11 and the second water-repellent layer 12 is preferably from 1 nm to 30 nm, more preferably from 4 nm to 20 nm.

Fig. 3 is a schematic cross-sectional view showing a glass-resin transparent laminated body for a window according to another embodiment of the present invention. As shown in FIG. 3, the glazing resin transparent laminated body 1 includes a transparent resin layer 2, a first glass layer 3, a second glass layer 4, a first transparent adhesive layer 5, a second transparent adhesive layer 6, and a first anti-reflection. The layer 7, the second anti-reflection layer 8, the first water repellent layer 11, and the hydrophilic layer 13.

The hydrophilic layer 13 is provided on the surface of the second anti-reflection layer 8 opposite to the second glass layer 4. The hydrophilic layer 13 may contain a hydrophilic group such as a hydroxyl group on the surface, and examples thereof include inorganic oxides such as cerium oxide, aluminum oxide, titanium oxide, and zirconium oxide. The yttrium oxide has a low refractive index of 1.45 and does not impair the antireflection effect of the second antireflection layer 8, and is therefore preferred. Further, since titanium oxide has photocatalytic properties, the surface of the hydrophilic layer 13 is less likely to be contaminated, which is preferable.

The hydrophilic layer 13 can also be subjected to a wet process such as a micro-gravure method, a screen coating method, a dip coating method, or a spray method, in addition to a vacuum dry process such as a vapor deposition method, a sputtering method, a CVD method, or a plasma polymerization method. And formed. The thickness of the hydrophilic layer 13 is preferably from 10 nm to 300 nm, more preferably from 20 nm to 200 nm.

[Examples]

Hereinafter, the glass-line resin transparent laminate of the present invention will be described in detail based on the examples, but the present invention is not limited to the examples.

(Example 1)

A rectangular glass film having a height of 300 mm, a width of 300 mm, and a thickness of 100 μm was prepared as the first glass layer and the second glass layer. The glass film is made of alkali-free glass (manufactured by Nippon Electric Whistle Co., Ltd., OA-10G, thermal expansion coefficient at 30 to 380 ° C: 38 × 10 ^-7 / ° C). The glass film formed by the overflow down-draw method was used as it is in an unground state.

On the surface of one of the first glass layer and the second glass layer, a first antireflection layer and a second antireflection layer including alternating layers of the compositions described in Table 1 were formed by sputtering. Further, as the material of the high refractive index layer, cerium oxide (refractive index of light having a wavelength of 500 nm) was used, and cerium oxide (refractive index of light having a wavelength of 500 nm of 1.46) was used as the material of the low refractive index layer.

A rectangular polycarbonate plate having a height of 300 mm, a width of 300 mm, and a thickness of 4 mm was prepared as a transparent resin layer, and an acrylic optically transparent adhesive sheet having a thickness of 25 μm was prepared as a first adhesive layer and a second adhesive layer. The glass resin transparent laminate is produced by laminating the transparent resin layer, the first glass layer and the second glass layer through the first transparent adhesive layer and the second transparent adhesive layer, respectively.

(Example 2)

A glass-line resin transparent laminate for windows was produced in substantially the same manner as in Example 1 except that an ethylene-vinyl acetate copolymer resin (EVA) having a thickness of 25 μm was used as the first adhesive layer and the second adhesive layer.

(Example 3)

After forming the first anti-reflection layer on one surface of the first glass layer, the perfluoropolyether-containing decane coupling agent is sprayed by the surface of the first anti-reflection layer (DAIKIN Industrial Co., Ltd., Optool) (registered trademark) DSX) and dried to form a first water repellent layer, and after forming a second antireflection layer on one surface of the second glass layer, by spraying the surface of the second antireflection layer by spray coating A perfluoropolyether group-containing decane coupling agent (manufactured by DAIKIN Industrial Co., Ltd., Optool (registered trademark) DSX) and dried to form a second water-repellent layer, except in substantially the same manner as in Example 1. A glass resin transparent laminate for window production is produced.

(Example 4)

After forming the first anti-reflection layer on one surface of the first glass layer, the perfluoropolyether-containing decane coupling agent is sprayed by the surface of the first anti-reflection layer (DAIKIN Industrial Co., Ltd., Optool) (registered trademark) DSX) and dried to form a first water repellent layer, and after forming a second antireflection layer on one surface of the second glass layer, by spraying the surface of the second antireflection layer by spray coating a hydrophilic alkoxysilane, a 10% ethanol solution (manufactured by Osaka Organic Chemical Industry Co., Ltd., LAMBIC-400EP) and dried A glass-line resin transparent laminate for windows was produced in substantially the same manner as in Example 2 except that the hydrophilic layer was formed by drying.

(Comparative Example 1)

A rectangular glass film having a height of 300 mm, a width of 300 mm, and a thickness of 100 μm was prepared as the first glass layer and the second glass layer. The glass film is made of alkali-free glass (manufactured by Nippon Electric Whistle Co., Ltd., OA-10G, thermal expansion coefficient at 30 to 380 ° C: 38 × 10 ^-7 / ° C). The glass film formed by the overflow down-draw method was used as it is in an unground state.

A rectangular polycarbonate plate having a height of 300 mm, a width of 300 mm, and a thickness of 4 mm was prepared as a transparent resin layer, and an acrylic optically transparent adhesive sheet having a thickness of 25 μm was prepared as a first adhesive layer and a second adhesive layer. The glass resin transparent laminate is produced by laminating the transparent resin layer, the first glass layer and the second glass layer through the first transparent adhesive layer and the second transparent adhesive layer, respectively.

(visuality)

The evaluation of the visibility was evaluated by measuring the visual reflectance. The visual reflectances of Examples 1 to 4 were both 0.2%, and it was possible to visually recognize the inside of a machine tool, a cleaning table, a glove box, or the like without reflection by external light such as a fluorescent lamp. On the other hand, the visual reflectance of Comparative Example 1 was 8%, and reflection by external light such as a fluorescent lamp was caused, and it was impossible to visually recognize the inside of a machine tool, a cleaning table, a glove box or the like.

(water repellent)

The water-repellent water is obtained by dropping 0.1 ml of water droplets from the dripper on the surface of the first water-repellent layer and the second water-repellent layer of the glass resin transparent laminate, and measuring the contact angle between the first water-repellent layer and the water droplets The contact angle between the water layer and the water droplet was measured and evaluated. Further, the contact angle is measured based on the ATAN1/2θ method according to the young formula. The contact angle between the first water-repellent layer and the water droplets in the embodiment 3, the contact angle between the second water-repellent layer and the water droplets, and the contact angle between the first water-repellent layer and the water droplets in the embodiment 4 are both 110°, which are higher. Water-repellent.

(hydrophilic)

The hydrophilicity was evaluated by dropping 0.1 ml of water droplets from the surface of the hydrophilic layer of the glass resin transparent laminate to measure the contact angle between the water-repellent layer and the water droplets. Further, the contact angle is measured based on the ATAN1/2θ method according to the young formula. The hydrophilic layer in Example 4 had a contact angle with water droplets of 2° and had a high hydrophilicity.

[Availability of industry]

The present invention is suitable for use in a window glass transparent laminated body for windows such as a window for a machine tool, a cleaning table or a glove box.

1‧‧‧Window glass transparent laminated body

2‧‧‧Transparent resin layer

3‧‧‧First glass layer

4‧‧‧Second glass layer

5‧‧‧First transparent layer

6‧‧‧Second transparent layer

7‧‧‧First anti-reflection layer

8‧‧‧Second anti-reflection layer

Claims (12)

A glass resin transparent laminated body for a window, comprising: a transparent resin layer; a first glass layer provided on the transparent resin layer; and a second glass layer provided on the transparent resin layer and the first a surface of the opposite side of the glass layer; a first transparent adhesive layer disposed between the transparent resin layer and the first glass layer, and the transparent resin layer and the first glass layer; and a second transparent adhesive layer And disposed between the transparent resin layer and the second glass layer, and the transparent resin layer and the second glass layer; the first anti-reflective layer is disposed on the first glass layer and the transparent resin a surface on the opposite side of the layer; and a second anti-reflection layer provided on a surface of the second glass layer opposite to the transparent resin layer. A glass resin transparent laminate according to claim 1, wherein the first glass layer and/or the second glass layer has a thickness of 300 μm or less. The glass resin transparent laminate according to claim 1 or 2, wherein the transparent resin layer has a larger total thickness than the first glass layer and the second glass layer. The glazing transparent laminate of the window according to any one of claims 1 to 3, wherein a total thickness of the first glass layer and the second glass layer is 0.1 times or less the thickness of the transparent resin layer. The glazing transparent laminate of the window according to any one of claims 1 to 4, wherein the first glass layer and/or the second glass layer is an alkali-free glass. The glazing transparent laminate of any one of claims 1 to 5, wherein the first antireflection layer and/or the second antireflection layer have a relatively low refractive index The low refractive index layer and the high refractive index layer having a relatively high refractive index are alternately laminated. The glazing transparent laminate for windows according to any one of claims 1 to 6, further comprising a first water repellent layer provided on a surface of the first antireflection layer opposite to the first glass layer. A glass resin transparent laminate according to claim 7, wherein the first water repellent layer contains fluorine. The glazing transparent laminate for windows according to any one of claims 1 to 8, further comprising a second water repellent layer provided on a surface of the second antireflection layer opposite to the second glass layer. A glass resin transparent laminate according to claim 9, wherein the second water repellent layer contains fluorine. The glass resin transparent laminate for windows according to any one of claims 1 to 8, further comprising a hydrophilic layer provided on a surface of the second antireflection layer opposite to the second glass layer. A glass resin transparent laminate for use in a window according to any one of claims 1 to 11, which is used for a window of a machine tool.