JP2018168013A - Interlayer for laminated glass, laminated glass, and method for producing interlayer for laminated glass - Google Patents

Abstract

To provide an interlayer for laminated glass that has a light control body layer but prevents the exudation of the light control body at the periphery, a laminated glass using the interlayer for laminated glass, and a method for producing the interlayer for laminated glass.SOLUTION: An interlayer for laminated glass has a structure in which an adhesion layer, a light control body layer, and an adhesion layer are laminated in order in a thickness direction, where the light control body layer has its edge sealed with a seal layer.SELECTED DRAWING: Figure 1

Description

The present invention relates to an interlayer film for laminated glass that has a light control layer and does not bleed out the light control body in the peripheral portion, a laminated glass using the interlayer film for laminated glass, and the interlayer film for laminated glass It relates to the manufacturing method.

A dimmer whose light transmittance is changed by applying a voltage is widely known. The dimmer is roughly classified into a dimmer using a liquid crystal material and a dimmer using an electrochromic compound. In particular, dimming bodies using a liquid crystal material have been repeatedly studied for the purpose of being applied to display devices such as lightning plates.

In recent years, a laminated glass using a dimmer as an interlayer film for laminated glass has been proposed in order to control the temperature in the interior of a vehicle such as an automobile or a building (for example, Patent Document 1). Specifically, an interlayer film for laminated glass having a structure in which an adhesive layer, a light control layer, and an adhesive layer are laminated in this order in the thickness direction has been proposed. It is considered that the light transmittance of the laminated glass can be controlled by using such an interlayer film for laminated glass.
However, in the interlayer film for laminated glass having such a light control layer, there is a problem that a part of the light control body oozes out to the periphery and may be contaminated. In particular, this problem is remarkable when a liquid crystal material is used as the light control member.

JP2013-250529A

In view of the above situation, the present invention has an interlayer film for laminated glass that has a light control layer and does not bleed out the light control body in the periphery, laminated glass using the interlayer film for laminated glass, and the It aims at providing the manufacturing method of the intermediate film for laminated glasses.

The present invention is an interlayer film for laminated glass having a structure in which an adhesive layer, a light control layer, and an adhesive layer are laminated in this order in the thickness direction, and the light control layer is sealed at its periphery by a sealing layer. It is an interlayer film for laminated glass.
The present invention is described in detail below.

An interlayer film for laminated glass having a structure in which an adhesive layer, a light control layer, and an adhesive layer are laminated in the thickness direction is usually a laminate in which an adhesive layer, a light control layer, and an adhesive layer are first laminated in this order. It is manufactured through a laminating process in which it is prepared and pressure-bonded by an autoclave while applying a temperature of about 100 to 150 ° C. The inventors of the present invention have found that when the thermocompression bonding is performed in the laminating step, a part of the light control body exudes from the light control material layer of the interlayer film for laminated glass.
As a result of intensive studies, the present inventors have found that the light control body can be prevented from oozing out of the light control material layer during the laminating process by sealing the periphery of the light control material layer with a seal layer. The present invention has been completed.

The interlayer film for laminated glass of the present invention has a structure in which an adhesive layer, a light control layer, and an adhesive layer are laminated in this order in the thickness direction. By having the said light control body layer, the transmittance | permeability of light can be changed by applying a voltage to the intermediate film for laminated glasses of this invention.

It does not specifically limit as a light control body contained in the said light control body layer, Conventionally known light control bodies, such as a light control body using a liquid-crystal material, a light control body using an electrochromic compound, can be used. In particular, the present invention is particularly effective when a light control body using a liquid crystal material or a light control body with relatively high fluidity such as SPD (Suspended Particle Device) is used.

Examples of the light modulator made of the liquid crystal material include TN liquid crystal, STN liquid crystal, TFT liquid crystal, and a material obtained by impregnating these liquid crystals into a polymer matrix.

When the light control body is a light control body having a relatively high fluidity, the light control body layer preferably contains spacer particles. By containing the spacer particles, it is possible to stabilize the thickness of the light control layer. The spacer particles are not particularly limited, and inorganic particles and organic particles can be used.
In addition, when using a gel-like light-adjusting material (for example, trade name “MIYO-film” manufactured by Kyushu Nanotech Co., Ltd.), which is a liquid crystal blended with a polymer cross-linked material, the spacer particles are not used. In both cases, the thickness of the light control layer can be stabilized.

Although the thickness of the said light control body layer is not specifically limited, A preferable minimum is 80 micrometers and a preferable upper limit is 500 micrometers. When the thickness of the light control layer is within this range, the light transmittance can be sufficiently changed by applying a voltage. The minimum with more preferable thickness of the said light control body layer is 100 micrometers, and a more preferable upper limit is 400 micrometers.

The said adhesive layer has the role which pinches | interposes the said light control body layer and exhibits the adhesiveness with respect to glass.
The adhesive layer preferably contains a thermoplastic resin.
Examples of the thermoplastic resin include polyvinylidene fluoride, polytetrafluoroethylene, vinylidene fluoride-hexafluoropropylene copolymer, polytrifluoride ethylene, acrylonitrile-butadiene-styrene copolymer, polyester, polyether, Examples thereof include polyamide, polycarbonate, polyacrylate, polymethacrylate, polyvinyl chloride, polyethylene, polypropylene, polystyrene, polyvinyl acetal, and ethylene-vinyl acetate copolymer. Especially, it is preferable that the said contact bonding layer contains a polyvinyl acetal or an ethylene-vinyl acetate copolymer, and it is more preferable to contain a polyvinyl acetal.

The polyvinyl acetal is not particularly limited as long as it is a polyvinyl acetal obtained by acetalizing polyvinyl alcohol with an aldehyde, but polyvinyl butyral is preferable. Moreover, you may use together 2 or more types of polyvinyl acetal as needed.

The preferable lower limit of the degree of acetalization of the polyvinyl acetal is 40 mol%, the preferable upper limit is 85 mol%, the more preferable lower limit is 60 mol%, and the more preferable upper limit is 75 mol%.
The polyvinyl acetal has a preferred lower limit of the hydroxyl group content of 15 mol% and a preferred upper limit of 35 mol%. Adhesiveness between the interlayer film for laminated glass and the glass is increased when the amount of the hydroxyl group is 15 mol% or more. When the hydroxyl group amount is 35 mol% or less, handling of the interlayer film for laminated glass becomes easy.
The degree of acetalization and the amount of hydroxyl groups can be measured in accordance with, for example, JIS K6728 “Testing method for polyvinyl butyral”.

The polyvinyl acetal can be prepared by acetalizing polyvinyl alcohol with an aldehyde.
The polyvinyl alcohol is usually obtained by saponifying polyvinyl acetate, and polyvinyl alcohol having a saponification degree of 70 to 99.8 mol% is generally used. The saponification degree of the polyvinyl alcohol is preferably 80 to 99.8 mol%.
The preferable lower limit of the polymerization degree of the polyvinyl alcohol is 500, and the preferable upper limit is 4000. When the polymerization degree of the polyvinyl alcohol is 500 or more, the penetration resistance of the obtained laminated glass is increased. When the polymerization degree of the polyvinyl alcohol is 4000 or less, the interlayer film for laminated glass can be easily molded. The minimum with a more preferable polymerization degree of the said polyvinyl alcohol is 1000, and a more preferable upper limit is 3600.

The aldehyde is not particularly limited, but generally an aldehyde having 1 to 10 carbon atoms is preferably used. The aldehyde having 1 to 10 carbon atoms is not particularly limited. For example, n-butyraldehyde, isobutyraldehyde, n-valeraldehyde, 2-ethylbutyraldehyde, n-hexylaldehyde, n-octylaldehyde, n-nonylaldehyde N-decylaldehyde, formaldehyde, acetaldehyde, benzaldehyde and the like. Of these, n-butyraldehyde, n-hexylaldehyde, and n-valeraldehyde are preferable, and n-butyraldehyde is more preferable. These aldehydes may be used alone or in combination of two or more.

The adhesive layer preferably contains a plasticizer. The plasticizer is not particularly limited, and examples thereof include organic ester plasticizers such as monobasic organic acid esters and polybasic organic acid esters, phosphoric acid plasticizers such as organic phosphoric acid plasticizers and organic phosphorous acid plasticizers, and the like. Is mentioned. The plasticizer is preferably a liquid plasticizer.

The monobasic organic acid ester is not particularly limited. For example, glycols such as triethylene glycol, tetraethylene glycol, and tripropylene glycol, butyric acid, isobutyric acid, caproic acid, 2-ethylbutyric acid, heptylic acid, and n-octyl Examples thereof include glycol esters obtained by reaction with monobasic organic acids such as acid, 2-ethylhexyl acid, pelargonic acid (n-nonyl acid), and decyl acid. Of these, triethylene glycol dicaproate, triethylene glycol di-2-ethylbutyrate, triethylene glycol di-n-octylate, triethylene glycol di-2-ethylhexylate and the like are preferable.

Although the said polybasic organic acid ester is not specifically limited, For example, ester compound of polybasic organic acid, such as adipic acid, sebacic acid, azelaic acid, and the alcohol which has a C4-C8 linear or branched structure Is mentioned. Of these, dibutyl sebacic acid ester, dioctyl azelaic acid ester, dibutyl carbitol adipic acid ester and the like are preferable.

The organic ester plasticizer is not particularly limited, and triethylene glycol di-2-ethylbutyrate, triethylene glycol di-2-ethylhexanoate, triethylene glycol dicaprylate, triethylene glycol di-n-octanoate, Triethylene glycol di-n-heptanoate, tetraethylene glycol di-n-heptanoate, tetraethylene glycol di-2-ethylhexanoate, dibutyl sebacate, dioctyl azelate, dibutyl carbitol adipate, ethylene glycol di-2-ethyl Butyrate, 1,3-propylene glycol di-2-ethyl butyrate, 1,4-butylene glycol di-2-ethyl butyrate, diethylene glycol di-2-ethyl butyrate, diethylene glycol di- -Ethyl hexanoate, dipropylene glycol di-2-ethyl butyrate, triethylene glycol di-2-ethyl pentanoate, tetraethylene glycol di-2-ethyl butyrate, diethylene glycol dicapryate, dihexyl adipate, adipine Dioctyl acid, hexyl cyclohexyl adipate, diisononyl adipate, heptylnonyl adipate, dibutyl sebacate, oil-modified sebacic acid alkyd, a mixture of phosphate ester and adipic acid ester, adipic acid ester, alkyl alcohol having 4 to 9 carbon atoms and Examples thereof include mixed adipic acid esters prepared from cyclic alcohols having 4 to 9 carbon atoms and adipic acid esters having 6 to 8 carbon atoms such as hexyl adipate.

The organophosphate plasticizer is not particularly limited, and examples thereof include tributoxyethyl phosphate, isodecylphenyl phosphate, triisopropyl phosphate, and the like.

Furthermore, since it is difficult to cause hydrolysis as the plasticizer, triethylene glycol di-2-ethylhexanoate (3GO), triethylene glycol di-2-ethylbutyrate (3GH), tetraethylene glycol di-2- It preferably contains ethyl hexanoate (4GO) and dihexyl adipate (DHA), and tetraethylene glycol di-2-ethylhexanoate (4GO) and triethylene glycol di-2-ethylhexanoate (3GO). More preferably, it contains triethylene glycol di-2-ethylhexanoate (3GO).

The content of the plasticizer in the adhesive layer is not particularly limited, but a preferable lower limit with respect to 100 parts by weight of the polyvinyl acetal is 30 parts by weight, and a preferable upper limit is 90 parts by weight. When the content of the plasticizer is 30 parts by weight or more, the melt viscosity of the laminated glass interlayer film is lowered, and the degassing property when the laminated glass is produced using this laminated glass interlayer film is increased. When the content of the plasticizer is 90 parts by weight or less, the transparency of the interlayer film for laminated glass increases. The minimum with more preferable content of the said plasticizer is 35 weight part, a more preferable upper limit is 70 weight part, and a still more preferable upper limit is 63 weight part.

The adhesive layer preferably contains an adhesive strength modifier. By containing the adhesive strength adjusting agent, the adhesive strength to glass can be adjusted, and a laminated glass excellent in penetration resistance can be obtained.
As said adhesive force regulator, an alkali metal salt or alkaline-earth metal salt is used suitably, for example. As said adhesive force regulator, salts, such as potassium, sodium, magnesium, are mentioned, for example.
Examples of the acid constituting the salt include organic acids of carboxylic acids such as octylic acid, hexylic acid, 2-ethylbutyric acid, butyric acid, acetic acid, formic acid, and inorganic acids such as hydrochloric acid and nitric acid.

When heat-shielding property is requested | required of the intermediate film for laminated glasses of this invention, the said contact bonding layer may contain a heat ray absorber.
The heat ray absorber is not particularly limited as long as it has the ability to shield infrared rays, but is tin-doped indium oxide (ITO) particles, antimony-doped tin oxide (ATO) particles, aluminum-doped zinc oxide (AZO) particles, indium-doped oxide. At least one selected from the group consisting of zinc (IZO) particles, tin-doped zinc oxide particles, silicon-doped zinc oxide particles, lanthanum hexaboride particles and cerium hexaboride particles is preferred.

The adhesive layer may contain conventionally known additives such as an ultraviolet shielding agent, an antioxidant, a light stabilizer, and an antistatic agent as necessary.

Although the thickness of the said contact bonding layer is not specifically limited, A preferable minimum is 100 micrometers and a preferable upper limit is 500 micrometers. When a plurality of the adhesive layers are present, a preferable lower limit of the total thickness of the adhesive layers is 200 μm, and a preferable upper limit is 1000 μm. When the total thickness and thickness of the adhesive layer are within this range, sufficient durability can be obtained, and basic qualities such as transparency and penetrability of the obtained laminated glass are satisfied. The more preferable lower limit of the thickness of the adhesive layer is 250 μm, and the more preferable upper limit is 400 μm. The more preferable lower limit of the total thickness of the adhesive layer is 500 μm, and the more preferable upper limit is 800 μm.

The interlayer film for laminated glass of the present invention preferably has a transparent conductive layer on the surface of the adhesive layer on the side in contact with the light control layer. By having such a transparent conductive layer, it is possible to easily change the light transmittance by applying a voltage to the light control layer through the transparent conductive layer.
The transparent conductive layer preferably contains, for example, tin-doped indium oxide (ITO), fluorine-doped tin oxide (FTO), or the like.

In the interlayer film for laminated glass of the present invention, the light control layer is sealed at its peripheral edge portion by a seal layer. Thereby, it can prevent that a light control body oozes out from a light control layer at the time of a lamination process.

In FIG. 1, the schematic diagram which shows an example of the cross section of the intermediate film for laminated glasses of this invention was shown.
The interlayer film 1 for laminated glass shown in FIG. 1A has a structure in which an adhesive layer 2, a light control layer 3, and an adhesive layer 2 are laminated in this order in the thickness direction. A transparent conductive layer 4 is provided on the surface of the adhesive layer 2 on the side in contact with the light control layer 3. In FIG. 1A, the periphery of the light control layer 3 is sealed with a seal layer 5. The sealing layer 5 is sandwiched between two adhesive layers 2 (transparent conductive layer 4).
The interlayer film for laminated glass 10 shown in FIG. 1B has a structure in which an adhesive layer 20, a light control layer 30, and an adhesive layer 20 are laminated in this order in the thickness direction. A transparent conductive layer 40 is provided on the surface of the adhesive layer 20 on the side in contact with the light control layer 30. In FIG. 1B, the periphery of the light control layer 30 is sealed with a seal layer 50. The seal layer 50 is disposed on the peripheral edge of the laminate including the adhesive layer 20 (transparent conductive layer 40), the light control layer 30, and the adhesive layer 20 (transparent conductive layer 40).

The seal layer is not particularly limited as long as it can prevent the light adjuster from seeping out from the light adjuster layer, but is preferably made of a photocurable resin or a thermosetting resin. If a photocurable resin or a thermosetting resin is used, the photocurable resin or the thermosetting resin is cured before the laminating process to form a seal layer, thereby reliably sealing the light control layer with the seal layer. It is possible to reliably prevent the light control body from seeping out. Especially, the sealing agent containing photocurable resin is more preferable from the point of handleability.

Although it will not specifically limit as said photocurable resin if it hardens | cures by irradiating light, For example, (meth) acrylic resin, urethane resin, etc. are suitable. The (meth) acrylic resin is preferably a polyfunctional (meth) acrylate.
The thermosetting resin is not particularly limited as long as it is cured by heating, and for example, an epoxy resin, an amide resin, and the like are preferable.

Although it does not specifically limit as a method to manufacture the intermediate film for laminated glasses of this invention, For example, the process of producing two contact bonding layers which formed the transparent conductive layer in one side, and one transparent conductive layer were formed. A step of applying a sealant containing a photocurable resin in a frame shape on the peripheral edge of the adhesive layer on the transparent conductive layer side, and an inner side of the frame of the sealant on the adhesive layer on which the transparent conductive layer is formed. A step of forming a light control layer by applying a light body, and a step of obtaining a laminate in which the adhesive layer on which the other transparent conductive layer is formed is overlapped so that the transparent conductive layer is on the light control layer side And a step of irradiating the laminate with light to cure the sealant to form a seal layer, and a step of pressing and laminating the laminate after forming the seal layer while applying a temperature of 30 to 100 ° C. The method is preferred.
In the case where the sealant containing the photocurable resin is a so-called post-curing photocurable sealant having a time lag from irradiation to curing, the step of obtaining the laminate Before, light irradiation may be performed.

Also, for example, a thermosetting resin is applied to the peripheral portion on the transparent conductive layer side of the adhesive layer on which one transparent conductive layer is formed, and a step of preparing two adhesive layers having a transparent conductive layer formed on one side. A step of coating the sealing agent contained in a frame shape, a step of applying a light modulator on the inner side of the frame of the sealing agent on the adhesive layer on which the transparent conductive layer is formed, and forming a light modulator layer; The step of superimposing the adhesive layer on which the other transparent conductive layer is formed so that the transparent conductive layer is on the light control layer side to obtain a laminate, and heating the laminate to cure the sealing agent to seal layer A method including a step of forming a laminate and a step of pressing and laminating the laminate after forming the seal layer while applying a temperature of 30 to 100 ° C. is also suitable.
A method for producing these interlayer films for laminated glass is also one aspect of the present invention.

The laminated glass in which the interlayer film for laminated glass of the present invention is laminated between a pair of glass plates is also one aspect of the present invention.
The said glass plate can use the transparent plate glass generally used. Examples thereof include inorganic glass such as float plate glass, polished plate glass, template glass, netted glass, wire-containing plate glass, colored plate glass, heat ray absorbing glass, heat ray reflecting glass, and green glass. Further, an ultraviolet shielding glass having an ultraviolet shielding coating layer on the glass surface can also be used. Furthermore, organic plastics plates such as polyethylene terephthalate, polycarbonate, and polyacrylate can also be used.
Two or more types of glass plates may be used as the glass plate. For example, the laminated glass which laminated | stacked the intermediate film for laminated glasses of this invention between transparent float plate glass and colored glass plates like green glass is mentioned. Moreover, you may use the glass plate from which 2 or more types of thickness differs as said glass plate.

ADVANTAGE OF THE INVENTION According to this invention, it has a light control body layer, the intermediate film for laminated glasses which does not bleed out a light control body in a peripheral part, the laminated glass using this intermediate film for laminated glasses, and this laminated glass use An intermediate film manufacturing method can be provided.

It is a schematic diagram which shows an example of the cross section of the intermediate film for laminated glasses of this invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.

Example 1
(1) Preparation of adhesive layer and transparent conductive layer Polyvinyl butyral (hydroxyl content 30 mol%, acetylation degree 1 mol%, butyralization degree 69 mol%, average polymerization degree 1700) 100 parts by weight as a plasticizer 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) was added and sufficiently kneaded with a mixing roll to obtain a resin composition. The obtained resin composition was extruded with an extruder to obtain a single layer resin film having a thickness of 380 μm made of polyvinyl butyral (PVB).
Next, a layer having a thickness of 10 μm made of tin-doped indium oxide (ITO) was formed on a polyethylene terephthalate film having a thickness of 40 μm by sputtering and vapor deposition ion plating to obtain a transparent conductive layer. After laminating the obtained transparent conductive layer and the single layer resin film in the thickness direction in the order of a single layer resin film, a transparent conductive layer and a single layer resin film, the transparent conductive layer is bonded at 80 ° C. A layered adhesive layer was obtained. The obtained adhesive layer with a transparent conductive layer was cut into a size of 300 mm in length and 300 mm in width.

(2) Coating of sealant 100 parts by weight of a polyfunctional acrylate as a photocurable resin and 2 parts by weight of benzophenone as an ultraviolet absorber were mixed to prepare a photocurable sealant.
The obtained photocurable sealant was applied in a frame shape by screen printing so that the line width of the adhesive layer with a transparent conductive layer on the transparent conductive layer side was 5 mm.

(3) Formation of a light control layer A liquid crystal (STN type liquid crystal (manufactured by DIC)) is used as a light control body, and a polymer crosslinked body (polyfunctional acrylate polymer) at a ratio of 30 parts by weight to 70 parts by weight of the light control body. ) Was applied to the inside of the sealant frame on the obtained adhesive layer with a transparent conductive layer to form a light control layer.

(4) Laminate the adhesive layer with a transparent conductive layer prepared for each production of the interlayer film for laminated glass so that the light control layer of the adhesive layer with the transparent conductive layer forming the light control member is sandwiched between the transparent electrode layers. Got the body. The obtained laminate was irradiated with ultraviolet rays having a wavelength of 350 nm and an intensity of 1000 mW / cm ² for 10 seconds using a high-pressure mercury lamp to cure the sealant to form a seal layer.
Next, the laminate on which the seal layer was formed was pressure-bonded and laminated while applying a temperature of 40 ° C. to obtain an interlayer film for laminated glass. Note that an interlayer film for laminated glass was produced even under the condition of a lamination temperature of 90 ° C.

(Example 2)
Liquid crystal (STN type liquid crystal (manufactured by DIC)) was used as the light control member, and spacer particles (trade name “Micropearl” manufactured by Sekisui Chemical Co., Ltd.) at a ratio of 0.001 part by weight to 100 parts by weight of the light control member. An interlayer film for laminated glass was obtained in the same manner as in Example 1 except that the light control layer was formed using the blended material.

(Example 3)
In the same manner as in Example 2 except that an ethylene-vinyl acetate copolymer film (manufactured by Sekisui Chemical Co., Ltd.) was used as the single-layer resin film instead of the single-layer resin film made of PVB, an intermediate for laminated glass A membrane was obtained.

(Comparative Examples 1 and 2)
An interlayer film for laminated glass was obtained in the same manner as in Examples 1 and 3 except that the seal layer was not formed.

(Evaluation)
The following evaluation was performed about the intermediate film for laminated glasses obtained by the Example and the comparative example. The results are shown in Table 1.

(1) Evaluation of seepage of light control body The periphery of the obtained interlayer film for laminated glass was visually observed, and a case where no seepage of the light control body was observed was marked with “○”. The case where slight exudation was observed was evaluated as “Δ”, and the case where exudation was observed was evaluated as “x”.
In addition, evaluation of the light control body oozing-out was performed on an interlayer film for laminated glass that was bonded at 40 ° C. and 90 ° C.

(2) Evaluation of light control property A voltage of -2 V was applied to the obtained interlayer film for laminated glass and observed visually, and a change in light transmittance of the interlayer film for laminated glass was observed. The case where it was not recognized as “O” was evaluated as “X”.
In addition, dimming property evaluation was performed about the intermediate film for laminated glasses which bonded together at 40 degreeC. However, for Comparative Examples 1 and 2 in which there was a large exudation of the dimmer, the evaluation of the dimming property was stopped.

ADVANTAGE OF THE INVENTION According to this invention, it has a light control body layer, the intermediate film for laminated glasses which does not bleed out a light control body in a peripheral part, the laminated glass using this intermediate film for laminated glasses, and this laminated glass use An intermediate film manufacturing method can be provided.

DESCRIPTION OF SYMBOLS 1 Intermediate film 2 for laminated glass Adhesive layer 3 Light control layer 4 Transparent conductive layer 5 Seal layer 10 Intermediate film 20 for laminated glass Adhesive layer 30 Light control layer 40 Transparent conductive layer 50 Seal layer

Claims (10)

An interlayer film for laminated glass having a structure in which an adhesive layer, a light control layer, and an adhesive layer are laminated in this order in the thickness direction, wherein the light control body layer has a peripheral edge sealed with a seal layer A featured interlayer film for laminated glass. The interlayer film for laminated glass according to claim 1, wherein the light control layer contains a liquid crystal material. The interlayer film for laminated glass according to claim 1 or 2, wherein the sealing layer is made of a photocurable resin or a thermosetting resin. The interlayer film for laminated glass according to claim 1 or 2, wherein the seal layer is made of a photocurable resin. The interlayer film for laminated glass according to claim 1, 2, 3, or 4, wherein the adhesive layer contains a thermoplastic resin. The interlayer film for laminated glass according to claim 5, wherein the thermoplastic resin is polyvinyl acetal or an ethylene-vinyl acetate copolymer. The interlayer film for laminated glass according to claim 1, 2, 3, 4, 5, or 6, further comprising a transparent conductive layer on a surface of the adhesive layer on a side in contact with the light control layer. The laminated glass which has the intermediate film for laminated glasses of Claim 1, 2, 3, 4, 5, 6 or 7 between a pair of glass plates. A method for producing an interlayer film for laminated glass according to claim 1, 2, 3, 4, 5, 6 or 7,
A step of producing two adhesive layers having a transparent conductive layer formed on one surface, and a sealant containing a photocurable resin at the peripheral edge of the transparent conductive layer side of the adhesive layer having one transparent conductive layer formed A step of applying a light control body on the inner side of the frame of the sealing agent on the adhesive layer on which the transparent conductive layer is formed, and a step of forming the light control layer. A step of obtaining a laminate in which the adhesive layer on which the layer is formed is overlaid so that the transparent conductive layer is on the light control layer side, and the sealant is cured by irradiating the laminate with light to form a seal layer A method for producing an interlayer film for laminated glass, the method comprising: a step of pressing and laminating the laminate after forming the seal layer while applying a temperature of 30 to 100 ° C. A method for producing an interlayer film for laminated glass according to claim 1, 2, 3, 4, 5, 6 or 7,
A step of producing two adhesive layers having a transparent conductive layer formed on one surface thereof, and a sealing agent containing a thermosetting resin at the peripheral portion on the transparent conductive layer side of the adhesive layer having one transparent conductive layer formed A step of applying a light control body on the inner side of the frame of the sealing agent on the adhesive layer on which the transparent conductive layer is formed, and a step of forming the light control layer. A step of superimposing the adhesive layer on which the layers are formed so that the transparent conductive layer is on the light control layer side to obtain a laminate, and a step of heating the laminate to cure the sealing agent to form a seal layer And a method for producing an interlayer film for laminated glass, comprising: a step of pressing and laminating the laminate after forming the seal layer while applying a temperature of 30 to 100 ° C.

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