WO2011155403A1 - Method for manufacturing curved glass-resin laminate - Google Patents

Method for manufacturing curved glass-resin laminate Download PDF

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Publication number
WO2011155403A1
WO2011155403A1 PCT/JP2011/062784 JP2011062784W WO2011155403A1 WO 2011155403 A1 WO2011155403 A1 WO 2011155403A1 JP 2011062784 W JP2011062784 W JP 2011062784W WO 2011155403 A1 WO2011155403 A1 WO 2011155403A1
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WO
WIPO (PCT)
Prior art keywords
glass
plate
resin
resin laminate
curved
Prior art date
Application number
PCT/JP2011/062784
Other languages
French (fr)
Japanese (ja)
Inventor
隆義 斉藤
Original Assignee
日本電気硝子株式会社
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Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to JP2011524085A priority Critical patent/JPWO2011155403A1/en
Publication of WO2011155403A1 publication Critical patent/WO2011155403A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective

Definitions

  • the present invention relates to a method for producing a curved glass resin laminate.
  • the present invention relates to a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate.
  • This glass resin laminate is used, for example, arranged so as to face the glass plate side on the side where high scratch resistance is required.
  • a glass plate is affixed on the outer surface of a resin window plate of an automobile, and the outer surface of the window plate is provided by a glass plate.
  • the abrasion resistance of the outer surface of the window plate of a motor vehicle can be improved.
  • the glass resin laminate when a glass resin laminate is produced using a glass plate having a reflective film formed on the surface, the glass resin laminate can be used as a reflective member.
  • a reflective member having high durability can be realized by making light incident from the glass side.
  • the reflective member can be easily manufactured as compared with the case where the reflective member is formed of only glass, and the handling property of the reflective member is also improved.
  • a reflective film is formed on a glass plate, a reflective film that cannot be formed on a resin plate with low heat resistance can be formed.
  • Patent Documents 1 and 2 disclose a method for producing a curved glass plate from a flat glass plate by a mold press.
  • JP 2005-206458 A Japanese Patent No. 4052014
  • the present invention has been made in view of such points, and the object thereof is a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate, To provide a method for producing a curved glass resin laminate, which can easily produce a curved glass resin laminate and can suitably produce a curved glass resin laminate even when the glass plate is thin. .
  • the method for producing a curved glass resin laminate according to the present invention relates to a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate.
  • the manufacturing method of the curved glass resin laminated body which concerns on this invention has a 1st and 2nd process.
  • the first step is a step of forming a glass resin laminate by laminating and bonding a resin plate and a glass plate.
  • the second step is a step of obtaining a curved glass resin laminate by curing the resin plate in a state in which the glass resin laminate is deformed so that at least a part thereof is curved.
  • the thickness of the “plate” is not particularly limited.
  • a so-called sheet or film that is thin enough to have flexibility is included in the plate.
  • the “curved glass resin laminate” means a glass resin laminate at least partially formed in a curved shape. That is, the “curved glass resin laminate” includes, for example, a glass resin laminate that is entirely curved, and a glass resin laminate that is partially curved and the other portion is planar. It is.
  • the method for producing a curved glass resin laminate according to the present invention since it is not necessary to soften the glass plate, a large-scale facility is used for producing the curved glass resin laminate, unlike the case of mold pressing the glass plate. Therefore, the curved glass resin laminate can be manufactured at a low cost.
  • the method for producing a curved glass resin laminate according to the present invention can be suitably used even when the glass plate is thin.
  • the method for curing the resin plate is not particularly limited.
  • the resin plate when the resin plate is made of a thermoplastic resin, the resin plate can be softened and then cured by cooling. That is, in the second step, after heating to a glass transition temperature (Tg) or more of the resin plate in a state where at least a part of the glass resin laminate is deformed in a curved shape, the glass transition temperature (Tg) of the resin plate is lower than The curved glass resin laminate can be obtained by cooling to a low temperature.
  • Tg glass transition temperature
  • the resin plate when the resin plate is made of an energy ray curable resin, it can be cured by irradiating the resin plate with energy rays. That is, in the second step, the curved glass resin laminate can be obtained by irradiating the resin plate with energy rays and curing the resin plate in a state where at least a part of the glass resin laminate is deformed into a curved shape. .
  • the “energy ray curable resin” refers to a resin having a property of being cured by irradiation with energy rays.
  • the energy beam may have any wavelength. Examples of energy rays include X-rays, ultraviolet rays, near ultraviolet rays, visible rays, near infrared rays, infrared rays, and the like.
  • the energy beam curable resin is generally called a thermosetting resin.
  • the energy ray curable resins are generally called photocurable resins.
  • the method for deforming the glass resin laminate in the second step is not particularly limited.
  • the glass resin laminate is placed on a mold in which a recess corresponding to the shape of the curved glass resin laminate is formed, and the recess is decompressed to make the glass resin laminate convex toward the recess.
  • the glass resin laminate may be deformed.
  • the glass resin laminate is disposed on a mold having a recess corresponding to the shape of the curved glass resin laminate, and the recess is decompressed so that the glass resin laminate is recessed.
  • a curved glass resin laminate may be obtained by curing the resin plate in a state where the glass resin laminate is deformed so as to have a shape along the surface. In this case, it is difficult to apply a large stress to a part of the glass resin laminate. Therefore, the glass resin laminate is not easily damaged in the manufacturing process. As a result, a curved glass resin laminate can be produced with a high yield rate.
  • the glass resin laminate is placed on the mold with the porous body having open cells in the recess of the mold, and the recess is decompressed so that the glass resin laminate is placed on the surface of the porous body.
  • the resin plate may be cured in a deformed state.
  • a curved glass resin laminate having a shape corresponding to the shape of the surface of the porous body is obtained.
  • a curved glass resin laminated body can be manufactured with high shape accuracy.
  • the air permeability of the porous body is preferably 1.0 ⁇ 10 ⁇ 13 m 2 or more. In this case, it becomes easy to depressurize the recess and align the glass resin laminate along the surface of the porous body. However, if the air permeability of the porous body is too high, the rigidity of the porous body may be too low. For this reason, the air permeability of the porous body is preferably 1.0 ⁇ 10 ⁇ 10 m 2 or less. From the same viewpoint, the porosity of the porous body is preferably 90% by volume or less.
  • the second step is preferably performed at a temperature equal to or lower than the softening temperature of the glass plate. That is, it is preferable to perform the second step so that the temperature of the glass plate does not exceed the softening temperature of the glass plate. Furthermore, it is more preferable to perform the second step at a temperature below the strain point of the glass plate. That is, it is preferable to perform the second step so that the temperature of the glass plate does not exceed the strain point of the glass plate. In this case, since the glass plate is not softened in the second step, a curved glass resin laminate having a high shape accuracy on the surface of the glass plate can be produced.
  • a functional film is formed on at least one surface of the glass plate.
  • the function expressed by this functional film can be imparted to the curved glass resin laminate.
  • the functional film when the functional film is formed on the surface of the glass plate, the functional film can be formed at a higher temperature than when the functional film is formed on the surface of the resin plate. Therefore, when forming a functional film on the surface of a glass plate, there are many kinds of functional films that can be formed. Therefore, a curved glass resin laminate having various functions can be produced.
  • the thickness of the resin plate is preferably larger than the thickness of the glass plate. This is because if the thickness of the resin plate is thinner than the thickness of the glass plate, the glass plate may not be maintained in a desired shape.
  • the thickness of the glass plate can be in the range of 5 ⁇ m to 1 mm. Further, the thickness of the resin plate can be in the range of 0.1 mm to 10 mm. In the present invention, in which the glass plate is preferably fixed with a resin plate in an elastically deformed state, the glass plate is preferably thin, and the thickness of the glass plate is preferably 100 ⁇ m or less, and is 50 ⁇ m or less. Is more preferable.
  • one resin plate and one glass plate may be joined in the first step. Moreover, in a 1st process, a glass plate may be joined to both surfaces of a resin plate as needed, and a resin plate may be joined to both surfaces of a glass plate.
  • a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate the curved glass resin laminate can be easily produced, and Moreover, even if it is a case where a glass plate is thin, the manufacturing method of the curved glass resin laminated body which can manufacture a curved glass resin laminated body suitably can be provided.
  • FIG. 1 is a schematic cross-sectional view of a glass resin laminate before processing according to an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of a jig used for deformation of the glass resin laminate in one embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG.
  • FIG. 4 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate.
  • FIG. 5 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate.
  • FIG. 6 is a schematic cross-sectional view for explaining the cutting process.
  • FIG. 7 is a schematic cross-sectional view of a curved glass resin laminate produced in one embodiment of the present invention.
  • FIG. 1 is a schematic cross-sectional view of a glass resin laminate before processing according to an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of a jig used for deformation of the glass resin laminate in one embodiment of
  • FIG. 8 is a schematic cross-sectional view of the glass resin laminate before processing in the first modification.
  • FIG. 9 is a schematic cross-sectional view of the glass resin laminate before processing in the second modification.
  • FIG. 10 is a schematic cross-sectional view of the glass resin laminate before processing in the third modification.
  • FIG. 11 is a schematic cross-sectional view of a jig used for deformation of a glass laminate in the second embodiment.
  • FIG. 12 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate in the second embodiment.
  • FIG. 13 is a schematic cross-sectional view for explaining a second step of molding a glass resin laminate in the second embodiment.
  • the method for producing a glass resin laminate described in this embodiment is a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate.
  • a resin plate 10 and a glass plate 20 are prepared.
  • the resin plate 10 can be appropriately selected according to the characteristics required for the curved glass resin laminate to be manufactured and the type and shape of the glass plate 20.
  • the resin plate 10 can be formed by, for example, extrusion molding.
  • the thickness of the resin plate 10 can be about 0.1 mm to 10 mm, for example.
  • the glass plate 20 can also be appropriately selected according to the characteristics required for the curved glass resin laminate to be manufactured and the type and shape of the resin plate 10.
  • the glass plate 20 is, for example, various types such as silicate glass, borate glass, borosilicate glass, phosphate glass, borophosphate glass, fluorophosphate glass, and alkali-free glass. It can be formed of glass.
  • the glass plate 20 may be made of crystallized glass.
  • the thickness of the glass plate 20 can be, for example, about 5 ⁇ m to 10 mm.
  • the thickness of the resin plate 10 is preferably larger than the thickness of the glass plate 20.
  • a glass resin laminate 1 is formed by laminating and bonding the resin plate 10 and the glass plate 20 (first step: bonding step).
  • first step: bonding step each of the resin plate 10 and the glass plate 20 has a disk shape, and the resin plate 10 is larger than the glass plate 20.
  • the glass plate 20 is joined to the central portion of the resin plate 10.
  • the joining method of the resin plate 10 and the glass plate 20 is not particularly limited.
  • the resin plate 10 and the glass plate 20 can be bonded using, for example, an adhesive or an adhesive.
  • the adhesive used when the resin plate 10 and the glass plate 20 are joined using an adhesive may be, for example, an energy ray curable resin such as a thermosetting resin or a photocurable resin.
  • the resin plate 10 and the glass plate 20 are resin on the entire surface of the glass plate 20 as long as the resin plate 10 and the glass plate 20 are bonded with such a strength that they do not peel when the glass resin laminate 1 is processed. It is not always necessary to be joined to the plate 10. For example, the glass plate 20 may be partially joined to the resin plate 10.
  • the glass resin laminated body 1 which was flat form is shape
  • the curved glass resin laminated body 2 can be manufactured.
  • the second step is performed using the jig 30 shown in FIGS.
  • the surface 30a of the jig 30 is formed with a recess 30b corresponding to the shape of the curved glass resin laminate 2 to be manufactured in the present embodiment.
  • the recess 30b has a cylindrical shape.
  • the recess 30 b is connected to a communication hole 30 c that is open on the side surface of the jig 30.
  • the recess 30b can be decompressed by connecting a decompression mechanism such as a decompression pump to the communication hole 30c.
  • An annular recess 30d is formed around the recess 30b on the surface 30a.
  • the recess 30 d is connected to a communication hole 30 e that is open on the side surface of the jig 30.
  • the recess 30d can be decompressed by connecting a decompression mechanism such as a decompression pump to the communication hole 30e.
  • the material of the jig 30 is not particularly limited as long as the jig 30 has sufficient rigidity when the glass resin laminate 1 is deformed.
  • the jig 30 can be formed of, for example, stainless steel or aluminum.
  • the glass resin laminate 1 is disposed on the surface 30a of the jig 30 so as to cover the recesses 30b and 30d.
  • the depression 30d is decompressed by driving the decompression mechanism 31 connected to the communication hole 30e.
  • the glass resin laminated body 1 is fixed on the surface 30 a of the jig 30.
  • the recess 30b is decompressed by driving the decompression mechanism 32 connected to the communication hole 30c.
  • the part located above the recessed part 30b of the glass resin laminated body 1 is deform
  • the resin plate 10 is cured.
  • the curved glass resin laminate 2 is obtained as shown in FIG.
  • cut along the cutting line L shown in FIG. As a result, as shown in FIG. 7, the curved glass resin laminate 2 can be manufactured, which is composed of a laminate of the central portion 10 a of the resin plate 10 and the glass plate 20.
  • the method for curing the resin plate 10 is not particularly limited.
  • the curing method of the resin plate 10 can be appropriately selected according to the type of the resin plate 10.
  • the resin plate 10 when the resin plate 10 is made of a thermoplastic resin, the resin plate 10 is heated to the glass transition temperature (Tg) or higher of the resin plate 10 while maintaining the state shown in FIG.
  • the resin plate 10 can be cured by cooling the plate 10 to below the glass transition temperature (Tg) of the resin plate 10.
  • the resin plate 10 when the resin plate 10 is made of an energy ray curable resin, the resin plate 10 can be cured by irradiating the resin plate 10 with energy rays. Specifically, when the resin plate 10 is made of a thermosetting resin, the resin plate 10 can be cured by irradiating the resin plate 10 with heat rays. Moreover, when the resin board 10 consists of photocurable resin, the resin board 10 can be hardened by irradiating the resin board 10 with a light ray.
  • the curved glass resin laminate 2 of the present embodiment since it is not necessary to soften the glass plate 20, unlike the case of mold pressing the glass plate 20, the curved glass. Large-scale equipment is not required for the production of the resin laminate 2, and the curved glass resin laminate 2 can be produced at low cost.
  • the manufacturing method of the curved glass resin laminated body 2 which concerns on this embodiment can be used suitably even when the glass plate 20 is thin.
  • the curved glass resin laminate 2 having a surface with high shape accuracy can be manufactured.
  • the second step is preferably performed at a temperature equal to or lower than the softening temperature of the glass plate 20. It is more preferable to carry out below the point. By doing in this way, the deformation
  • the resin plate 10 since the glass plate 20 is in an elastically deformed state, when the glass resin laminate 1 is removed from the jig 30, the radius of curvature of the curved portion of the glass resin laminate 1 is caused by the elastic force of the glass plate 20.
  • the glass resin laminate 1 is deformed in the direction in which the value decreases.
  • the resin plate 10 has such a thickness as to have higher rigidity than the glass plate 20. It is preferable. Specifically, the thickness of the resin plate 10 is preferably larger than the thickness of the glass plate 20, more preferably 5 times or more the thickness of the glass plate 20, and further preferably 10 times or more.
  • the glass resin laminate 1 is deformed by depressurizing the recess 30b. For this reason, when the glass resin laminate 1 is deformed, a large stress is hardly applied to a part of the glass resin laminate 1. Therefore, in the manufacturing process of the curved glass resin laminate 2, the glass resin laminate 1 is hardly damaged. As a result, the curved glass resin laminate 2 can be manufactured at a high yield rate.
  • the present invention is not limited to this. In the present invention, it is sufficient that at least a part of the glass resin laminate has a curved shape, and the entire glass resin laminate does not necessarily have a curved shape. In this invention, a glass resin laminated body may have a flat part in part.
  • the glass plate 20 is elastically deformed without being softened.
  • the present invention is not limited to this.
  • the glass plate 20 may be softened in the deformation process of the glass resin laminate.
  • FIG. 8 is a schematic cross-sectional view of the glass resin laminate before processing in the first modification.
  • a functional film 33 formed on at least one surface may be bonded to the resin plate 10.
  • various functions can be imparted to the curved glass resin laminate 2.
  • the functional film 33 as a reflective film is formed, the function as a reflective member can be imparted to the curved glass resin laminate 2.
  • the transparent heater function can be imparted to the curved glass resin laminate 2 by energizing the transparent conductive film.
  • the functional film 33 is formed on the glass plate 20, unlike the case where the functional film is formed on the resin plate, it is possible to form the inorganic functional film 33 that tends to have a high film formation temperature. is there. Therefore, when the functional film 33 is formed on the glass plate 20 as in this modification, the types of selectable functional films 33 are increased. Therefore, a glass resin laminate having various functions can be produced.
  • the functional film 33 may be formed of a single film or a stacked body of a plurality of films.
  • the functional film 33 may be an inorganic film or an organic film.
  • the functional film 33 is formed on the surface of the glass plate 20 opposite to the resin plate 10 .
  • the present invention is not limited to this configuration.
  • the functional film 33 may be formed on the surface of the glass plate 20 on the resin plate 10 side, or the functional film 33 may be formed on both surfaces of the glass plate 20.
  • FIG. 9 is a schematic cross-sectional view of the glass resin laminate before processing in the second modification.
  • FIG. 10 is a schematic cross-sectional view of the glass resin laminate before processing in the third modification.
  • the present invention is not limited to this configuration.
  • glass plates 20 may be bonded to both surfaces of the resin plate 10.
  • the resin plate 10 may be bonded to both surfaces of the glass plate 20.
  • FIG. 11 is a schematic cross-sectional view of a jig used for deformation of a glass laminate in the second embodiment.
  • FIG. 12 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate in the second embodiment.
  • FIG. 13 is a schematic cross-sectional view for explaining a second step of molding a glass resin laminate in the second embodiment.
  • the jig 30 includes a porous body 40 having open cells.
  • the porous body 40 is disposed in the recess 30b.
  • the surface 40a of the porous body 40 has a shape that matches the shape of the curved glass resin laminate 2 to be molded.
  • the constituent material of the porous body 40 is not particularly limited.
  • the porous body 40 can be made of, for example, ceramics such as alumina and silicon carbide, metal, carbon, and the like.
  • the glass resin laminate 1 is arranged so as to cover the concave portion 30b in which the porous body 40 is disposed, as shown in FIG. Next, the recess 30b is decompressed. Thereby, as shown in FIG. 13, the glass resin laminate 1 is deformed along the surface 40 a of the porous body 40. In this state, the resin plate 10 is cured. Thereby, the curved glass resin laminated body 2 which has a shape substantially the same as the shape of the surface 40a of the porous body 40 can be obtained.
  • the curved glass resin laminate 2 having a shape substantially similar to the shape of the surface 40a of the porous body 40 is manufactured by arranging the porous body 40 in the recess 30b. can do. Therefore, by changing the shape of the surface 40a, the curved glass resin laminate 2 having an arbitrary shape can be obtained. For example, the curved glass resin laminate 2 having a large curvature radius can be produced, and the curved glass resin laminate 2 having a small curvature radius can also be produced.
  • the curved glass resin laminated body 2 which has several parts from which a curvature radius mutually differs can also be manufactured.
  • the curved glass resin laminated body 2 of aspherical surface and free-form surface shape can also be manufactured.
  • the curved glass resin laminate 2 with high shape accuracy can be manufactured.
  • the air permeability of the porous body 40 is preferably 1.0 ⁇ 10 ⁇ 13 m 2 or more, and more preferably 5.0 ⁇ 10 ⁇ 13 m 2 or more. In this way, by increasing the air permeability of the porous body 40, the depression 30b in which the porous body 40 is disposed can be quickly and easily decompressed. However, if the air permeability of the porous body 40 is too high, the rigidity of the porous body 40 may be too low. Therefore, the air permeability of the porous body 40 is preferably 1.0 ⁇ 10 ⁇ 10 m 2 or less, and more preferably 1.0 ⁇ 10 ⁇ 11 m 2 or less. For the same reason, the porosity of the porous body 40 is preferably 90% by volume or less, and more preferably 80% by volume or less. In addition, it is preferable that the porosity of the porous body 40 is 30 volume% or more.
  • the diameter of the pores opened on the surface 40a of the porous body 40 is preferably 100 ⁇ m or less, and preferably 50 ⁇ m or less.
  • the diameter of the pores opened on the surface 40a of the porous body 40 is too large, the resin plate 10 and the curved glass resin laminate 2 enter the pores, and the surface of the obtained curved glass resin laminate 2 is obtained. This is because the shape accuracy may be lowered. From the same viewpoint, it is preferable that the diameter of the pores opened on the surface 40 a of the porous body 40 is equal to or less than the thickness of the glass plate 20.

Abstract

Disclosed is a method for manufacturing a curved glass-resin laminate, which has a resin plate and a glass plate laminated on the resin plate. In the method, the curved glass-resin laminate can be easily manufactured, and even if the glass plate is thin, the curved glass-resin laminate can be suitably manufactured. A glass-resin laminate (1) is formed by laminating and bonding the resin plate (10) and the glass plate (20). The curved glass-resin laminate (2) is obtained by hardening the resin plate (10) in a state wherein the glass-resin laminate (1) is deformed such that at least a part of the glass-resin laminate is curved.

Description

湾曲状ガラス樹脂積層体の製造方法Method for producing curved glass resin laminate
　本発明は、湾曲状ガラス樹脂積層体の製造方法に関する。特に、本発明は、樹脂板と、樹脂板の上に積層されたガラス板とを有する湾曲状ガラス樹脂積層体の製造方法に関する。 The present invention relates to a method for producing a curved glass resin laminate. In particular, the present invention relates to a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate.
　近年、樹脂の軽量であるなどの利点と、ガラスの耐擦傷性が高いなどという利点とを併せ持った部材として、樹脂板と、樹脂板の上に積層されたガラス板とを有するガラス樹脂積層体が用いられるようになってきている。 In recent years, a glass resin laminate having a resin plate and a glass plate laminated on the resin plate as a member having both advantages such as light weight of the resin and high scratch resistance of glass. Has come to be used.
　このガラス樹脂積層体は、例えば高い耐擦傷性が求められる側にガラス板側を向くように配置されて使用される。具体的には、例えば、自動車の樹脂製窓板の外側表面の上に、ガラス板が貼付され、窓板の外側表面がガラス板により構成されるように設けられる。これにより、自動車の窓板の外側表面の耐擦傷性を高めることができる。 This glass resin laminate is used, for example, arranged so as to face the glass plate side on the side where high scratch resistance is required. Specifically, for example, a glass plate is affixed on the outer surface of a resin window plate of an automobile, and the outer surface of the window plate is provided by a glass plate. Thereby, the abrasion resistance of the outer surface of the window plate of a motor vehicle can be improved.
　また、例えば、表面に反射膜が形成されているガラス板を用いてガラス樹脂積層体を作製した場合には、ガラス樹脂積層体は、反射部材として使用することができる。この場合、ガラス側から光を入射させることにより高い耐久性を有する反射部材を実現することができる。また、この場合、例えば、ガラスのみで反射部材を形成する場合よりも反射部材の作製が容易になるばかりか、反射部材のハンドリング性も向上する。さらに、ガラス板の上に反射膜を形成するのであれば、耐熱性の低い樹脂板には形成できない反射膜の形成も可能となる。 For example, when a glass resin laminate is produced using a glass plate having a reflective film formed on the surface, the glass resin laminate can be used as a reflective member. In this case, a reflective member having high durability can be realized by making light incident from the glass side. In addition, in this case, for example, the reflective member can be easily manufactured as compared with the case where the reflective member is formed of only glass, and the handling property of the reflective member is also improved. Furthermore, if a reflective film is formed on a glass plate, a reflective film that cannot be formed on a resin plate with low heat resistance can be formed.
　従来、このようなガラス樹脂積層体は、例えば湾曲状などの所定の形状に形成された樹脂板とガラス板とを接着剤により接着することにより作製されている。このため、湾曲状のガラス樹脂積層体を製造するためには、湾曲状のガラス板を作製する必要がある。湾曲状のガラス板の作製方法としては、例えば下記の特許文献１，２などにおいて、モールドプレスにより平板状のガラス板から湾曲状のガラス板を作製する方法が開示されている。 Conventionally, such a glass resin laminate is produced by bonding a resin plate formed in a predetermined shape such as a curved shape and a glass plate with an adhesive. For this reason, in order to manufacture a curved glass resin laminated body, it is necessary to produce a curved glass plate. As a method for producing a curved glass plate, for example, the following Patent Documents 1 and 2 disclose a method for producing a curved glass plate from a flat glass plate by a mold press.
特開２００５－２０６４５８号公報JP 2005-206458 A 特許第４０５２０１４号公報Japanese Patent No. 4052014
　しかしながら、モールドプレスにより平板状のガラス板を湾曲状に加工するためには大がかりな装置が必要となり、生産コストが大きく上昇してしまう。また、ガラス板が薄い場合には、湾曲状に高精度に加工することが困難である場合もある。 However, in order to process a flat glass plate into a curved shape by a mold press, a large-scale apparatus is required, and the production cost is greatly increased. In addition, when the glass plate is thin, it may be difficult to process the curved plate with high accuracy.
　本発明は、係る点に鑑みてなされたものであり、その目的は、樹脂板と、前記樹脂板の上に積層されたガラス板とを有する湾曲状ガラス樹脂積層体の製造方法であって、湾曲状ガラス樹脂積層体を容易に製造でき、かつ、ガラス板が薄い場合であっても湾曲状ガラス樹脂積層体を好適に製造し得る湾曲状ガラス樹脂積層体の製造方法を提供することにある。 The present invention has been made in view of such points, and the object thereof is a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate, To provide a method for producing a curved glass resin laminate, which can easily produce a curved glass resin laminate and can suitably produce a curved glass resin laminate even when the glass plate is thin. .
　本発明に係る湾曲状ガラス樹脂積層体の製造方法は、樹脂板と、樹脂板の上に積層されたガラス板とを有する湾曲状ガラス樹脂積層体の製造方法に関する。本発明に係る湾曲状ガラス樹脂積層体の製造方法は、第１及び第２の工程を有する。第１の工程は、樹脂板とガラス板とを積層し、接合することによりガラス樹脂積層体を形成する工程である。第２の工程は、ガラス樹脂積層体を、少なくとも一部が湾曲状となるように変形させた状態で樹脂板を硬化させることにより、湾曲状ガラス樹脂積層体を得る工程である。 The method for producing a curved glass resin laminate according to the present invention relates to a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate. The manufacturing method of the curved glass resin laminated body which concerns on this invention has a 1st and 2nd process. The first step is a step of forming a glass resin laminate by laminating and bonding a resin plate and a glass plate. The second step is a step of obtaining a curved glass resin laminate by curing the resin plate in a state in which the glass resin laminate is deformed so that at least a part thereof is curved.
　なお、本発明において、「板」の厚みは特に限定されず、例えば可撓性を有するほどに薄い所謂シートやフィルムも板に含まれるものとする。 In the present invention, the thickness of the “plate” is not particularly limited. For example, a so-called sheet or film that is thin enough to have flexibility is included in the plate.
　本発明において、「湾曲状ガラス樹脂積層体」は、少なくとも一部が湾曲状に形成されているガラス樹脂積層体を意味する。すなわち、「湾曲状ガラス樹脂積層体」には、例えば、全体が湾曲状であるガラス樹脂積層体と、一部が湾曲状であり、他の部分が平面状であるガラス樹脂積層体とが含まれる。 In the present invention, the “curved glass resin laminate” means a glass resin laminate at least partially formed in a curved shape. That is, the “curved glass resin laminate” includes, for example, a glass resin laminate that is entirely curved, and a glass resin laminate that is partially curved and the other portion is planar. It is.
　本発明に係る湾曲状ガラス樹脂積層体の製造方法によれば、ガラス板を軟化させる必要がないため、ガラス板をモールドプレスする場合とは異なり、湾曲状ガラス樹脂積層体の製造に大型の設備が必要とならず、湾曲状ガラス樹脂積層体を安価に製造することができる。 According to the method for producing a curved glass resin laminate according to the present invention, since it is not necessary to soften the glass plate, a large-scale facility is used for producing the curved glass resin laminate, unlike the case of mold pressing the glass plate. Therefore, the curved glass resin laminate can be manufactured at a low cost.
　また、ガラス板を軟化させる必要がないため、本発明に係る湾曲状ガラス樹脂積層体の製造方法は、ガラス板が薄い場合であっても好適に使用することができる。 Moreover, since it is not necessary to soften the glass plate, the method for producing a curved glass resin laminate according to the present invention can be suitably used even when the glass plate is thin.
　さらに、ガラス板を軟化させる必要がないため、ガラス板を軟化させることによるガラス板の表面の変形を抑制することができる。従って、高い形状精度の表面を有する湾曲状ガラス樹脂積層体を製造することができる。 Furthermore, since it is not necessary to soften the glass plate, deformation of the surface of the glass plate caused by softening the glass plate can be suppressed. Therefore, a curved glass resin laminate having a surface with high shape accuracy can be produced.
　本発明において、樹脂板を硬化させる方法は特に限定されない。例えば、樹脂板が熱可塑性樹脂からなる場合は、樹脂板を一旦軟化させた後に冷却することにより硬化させることができる。すなわち、第２の工程において、ガラス樹脂積層体の少なくとも一部を湾曲状に変形させた状態で樹脂板のガラス転移温度（Ｔｇ）以上にまで加熱した後に樹脂板のガラス転移温度（Ｔｇ）未満まで冷却することにより、湾曲状ガラス樹脂積層体を得ることができる。 In the present invention, the method for curing the resin plate is not particularly limited. For example, when the resin plate is made of a thermoplastic resin, the resin plate can be softened and then cured by cooling. That is, in the second step, after heating to a glass transition temperature (Tg) or more of the resin plate in a state where at least a part of the glass resin laminate is deformed in a curved shape, the glass transition temperature (Tg) of the resin plate is lower than The curved glass resin laminate can be obtained by cooling to a low temperature.
　また、例えば、樹脂板がエネルギー線硬化性樹脂からなる場合は、樹脂板にエネルギー線を照射することにより硬化させることができる。すなわち、第２の工程において、ガラス樹脂積層体の少なくとも一部を湾曲状に変形させた状態で樹脂板にエネルギー線を照射して硬化させることにより、湾曲状ガラス樹脂積層体を得ることができる。 For example, when the resin plate is made of an energy ray curable resin, it can be cured by irradiating the resin plate with energy rays. That is, in the second step, the curved glass resin laminate can be obtained by irradiating the resin plate with energy rays and curing the resin plate in a state where at least a part of the glass resin laminate is deformed into a curved shape. .
　なお、本発明において、「エネルギー線硬化性樹脂」とは、エネルギー線を照射することにより硬化する性質を有する樹脂のことをいう。エネルギー線は、どのような波長を有するものであってもよい。エネルギー線には、例えば、Ｘ線、紫外線、近紫外線、可視光線、近赤外線、赤外線等が含まれる。硬化に用いるエネルギー線が赤外線である場合は、エネルギー線硬化性樹脂は、一般的に、熱硬化性樹脂と呼ばれる。硬化に用いるエネルギー線が、紫外線、近紫外線、可視光線、近赤外線である場合は、エネルギー線硬化性樹脂は、一般的に、光硬化性樹脂と呼ばれる。 In the present invention, the “energy ray curable resin” refers to a resin having a property of being cured by irradiation with energy rays. The energy beam may have any wavelength. Examples of energy rays include X-rays, ultraviolet rays, near ultraviolet rays, visible rays, near infrared rays, infrared rays, and the like. When the energy beam used for curing is infrared, the energy beam curable resin is generally called a thermosetting resin. When the energy rays used for curing are ultraviolet rays, near ultraviolet rays, visible rays, and near infrared rays, the energy ray curable resins are generally called photocurable resins.
　本発明では、第２の工程においてガラス樹脂積層体を変形させる方法も特に限定されない。例えば、湾曲状ガラス樹脂積層体の形状に対応した凹部が形成されている成形型の上にガラス樹脂積層体を配置し、凹部を減圧することによりガラス樹脂積層体が凹部側に凸状となるようにガラス樹脂積層体を変形させてもよい。すなわち、第２の工程において、湾曲状ガラス樹脂積層体の形状に対応した凹部が形成されている成形型の上にガラス樹脂積層体を配置し、凹部を減圧することによりガラス樹脂積層体が凹部の表面に沿った形状となるようにガラス樹脂積層体を変形させた状態で樹脂板を硬化させることにより、湾曲状ガラス樹脂積層体を得てもよい。この場合、ガラス樹脂積層体の一部に大きな応力が加わり難い。従って、製造工程において、ガラス樹脂積層体が破損しにくい。その結果、高い良品率で湾曲状ガラス樹脂積層体を製造することができる。 In the present invention, the method for deforming the glass resin laminate in the second step is not particularly limited. For example, the glass resin laminate is placed on a mold in which a recess corresponding to the shape of the curved glass resin laminate is formed, and the recess is decompressed to make the glass resin laminate convex toward the recess. As described above, the glass resin laminate may be deformed. In other words, in the second step, the glass resin laminate is disposed on a mold having a recess corresponding to the shape of the curved glass resin laminate, and the recess is decompressed so that the glass resin laminate is recessed. A curved glass resin laminate may be obtained by curing the resin plate in a state where the glass resin laminate is deformed so as to have a shape along the surface. In this case, it is difficult to apply a large stress to a part of the glass resin laminate. Therefore, the glass resin laminate is not easily damaged in the manufacturing process. As a result, a curved glass resin laminate can be produced with a high yield rate.
　また、成形型の凹部内に連続気泡を有する多孔質体を配した状態で成形型の上にガラス樹脂積層体を配置し、凹部を減圧することによりガラス樹脂積層体を多孔質体の表面に沿うように変形させた状態で樹脂板を硬化させてもよい。この場合は、多孔質体の表面の形状に即した形状を有する湾曲状ガラス樹脂積層体が得られる。このため、配置する多孔質体の表面の形状を変化させることにより、任意の形状の湾曲状ガラス樹脂積層体を製造することが可能となる。また、高い形状精度で湾曲状ガラス樹脂積層体を製造することができる。 In addition, the glass resin laminate is placed on the mold with the porous body having open cells in the recess of the mold, and the recess is decompressed so that the glass resin laminate is placed on the surface of the porous body. The resin plate may be cured in a deformed state. In this case, a curved glass resin laminate having a shape corresponding to the shape of the surface of the porous body is obtained. For this reason, it becomes possible to manufacture the curved glass resin laminated body of arbitrary shapes by changing the shape of the surface of the porous body to arrange | position. Moreover, a curved glass resin laminated body can be manufactured with high shape accuracy.
　多孔質体の通気率は、１．０×１０－１３ｍ２以上であることが好ましい。この場合、凹部を減圧し、ガラス樹脂積層体を多孔質体の表面に沿わせることが容易となる。但し、多孔質体の通気率が高すぎると、多孔質体の剛性が低くなりすぎる場合がある。このため、多孔質体の通気率は、１．０×１０－１０ｍ２以下であることが好ましい。同様の観点から、多孔質体の気孔率は、９０体積％以下であることが好ましい。 The air permeability of the porous body is preferably 1.0 × 10 −13 m 2 or more. In this case, it becomes easy to depressurize the recess and align the glass resin laminate along the surface of the porous body. However, if the air permeability of the porous body is too high, the rigidity of the porous body may be too low. For this reason, the air permeability of the porous body is preferably 1.0 × 10 −10 m 2 or less. From the same viewpoint, the porosity of the porous body is preferably 90% by volume or less.
　本発明では、第２の工程を、ガラス板の軟化温度以下の温度で行うことが好ましい。すなわち、第２の工程を、ガラス板の温度がガラス板の軟化温度を上回らないように行うことが好ましい。さらには、第２の工程を、ガラス板の歪点以下の温度で行うことがより好ましい。すなわち、第２の工程を、ガラス板の温度がガラス板の歪点を上回らないように行うことが好ましい。この場合、第２の工程においてガラス板が軟化しないため、ガラス板の表面の形状精度が高い湾曲状ガラス樹脂積層体を製造することができる。 In the present invention, the second step is preferably performed at a temperature equal to or lower than the softening temperature of the glass plate. That is, it is preferable to perform the second step so that the temperature of the glass plate does not exceed the softening temperature of the glass plate. Furthermore, it is more preferable to perform the second step at a temperature below the strain point of the glass plate. That is, it is preferable to perform the second step so that the temperature of the glass plate does not exceed the strain point of the glass plate. In this case, since the glass plate is not softened in the second step, a curved glass resin laminate having a high shape accuracy on the surface of the glass plate can be produced.
　本発明において、ガラス板の少なくとも一方の表面の上には、機能膜が形成されていることが好ましい。この場合、この機能膜により発現される機能を湾曲状ガラス樹脂積層体に付与することができる。また、ガラス板の表面の上に機能膜を形成する場合は、樹脂板の表面に機能膜を形成する場合よりも、機能膜の形成をより高温で行うことができる。従って、ガラス板の表面の上に機能膜を形成する場合は、形成し得る機能膜の種類が多い。よって、種々の機能を有する湾曲状ガラス樹脂積層体を製造することができる。 In the present invention, it is preferable that a functional film is formed on at least one surface of the glass plate. In this case, the function expressed by this functional film can be imparted to the curved glass resin laminate. In addition, when the functional film is formed on the surface of the glass plate, the functional film can be formed at a higher temperature than when the functional film is formed on the surface of the resin plate. Therefore, when forming a functional film on the surface of a glass plate, there are many kinds of functional films that can be formed. Therefore, a curved glass resin laminate having various functions can be produced.
　本発明においては、ガラス板を弾性変形させた状態で樹脂板により固定することが好ましいため、樹脂板の厚みは、ガラス板の厚みよりも厚いことが好ましい。樹脂板の厚みがガラス板の厚みよりも薄い場合は、ガラス板を所望の形状に維持できない場合があるためである。 In the present invention, since the glass plate is preferably fixed with a resin plate in an elastically deformed state, the thickness of the resin plate is preferably larger than the thickness of the glass plate. This is because if the thickness of the resin plate is thinner than the thickness of the glass plate, the glass plate may not be maintained in a desired shape.
　具体的には、ガラス板の厚みは、５μｍ～１ｍｍの範囲内とすることができる。また、樹脂板の厚みは、０．１ｍｍ～１０ｍｍの範囲内とすることができる。ガラス板を弾性変形させた状態で樹脂板により固定することが好ましい本発明においては、ガラス板は、薄いことが好ましく、ガラス板の厚みは、１００μｍ以下であることが好ましく、５０μｍ以下であることがより好ましい。 Specifically, the thickness of the glass plate can be in the range of 5 μm to 1 mm. Further, the thickness of the resin plate can be in the range of 0.1 mm to 10 mm. In the present invention, in which the glass plate is preferably fixed with a resin plate in an elastically deformed state, the glass plate is preferably thin, and the thickness of the glass plate is preferably 100 μm or less, and is 50 μm or less. Is more preferable.
　なお、本発明においては、第１の工程において、一枚の樹脂板と、一枚のガラス板とを接合してもよい。また、必要に応じて、第１の工程において、樹脂板の両面にガラス板を接合してもよいし、ガラス板の両面に樹脂板を接合してもよい。 In the present invention, one resin plate and one glass plate may be joined in the first step. Moreover, in a 1st process, a glass plate may be joined to both surfaces of a resin plate as needed, and a resin plate may be joined to both surfaces of a glass plate.
　本発明によれば、樹脂板と、前記樹脂板の上に積層されたガラス板とを有する湾曲状ガラス樹脂積層体の製造方法であって、湾曲状ガラス樹脂積層体を容易に製造でき、かつ、ガラス板が薄い場合であっても湾曲状ガラス樹脂積層体を好適に製造し得る湾曲状ガラス樹脂積層体の製造方法を提供することができる。 According to the present invention, a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate, the curved glass resin laminate can be easily produced, and Moreover, even if it is a case where a glass plate is thin, the manufacturing method of the curved glass resin laminated body which can manufacture a curved glass resin laminated body suitably can be provided.
図１は、本発明を実施した一実施形態における加工前のガラス樹脂積層体の略図的断面図である。FIG. 1 is a schematic cross-sectional view of a glass resin laminate before processing according to an embodiment of the present invention. 図２は、本発明を実施した一実施形態において、ガラス樹脂積層体の変形に用いる治具の略図的平面図である。FIG. 2 is a schematic plan view of a jig used for deformation of the glass resin laminate in one embodiment of the present invention. 図３は、図２の線ＩＩＩ－ＩＩＩにおける略図的断面図である。FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 図４は、ガラス樹脂積層体を成形する第２の工程を説明するための略図的断面図である。FIG. 4 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate. 図５は、ガラス樹脂積層体を成形する第２の工程を説明するための略図的断面図である。FIG. 5 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate. 図６は、切断工程を説明するための略図的断面図である。FIG. 6 is a schematic cross-sectional view for explaining the cutting process. 図７は、本発明を実施した一実施形態において製造された湾曲状ガラス樹脂積層体の略図的断面図である。FIG. 7 is a schematic cross-sectional view of a curved glass resin laminate produced in one embodiment of the present invention. 図８は、第１の変形例における加工前のガラス樹脂積層体の略図的断面図である。FIG. 8 is a schematic cross-sectional view of the glass resin laminate before processing in the first modification. 図９は、第２の変形例における加工前のガラス樹脂積層体の略図的断面図である。FIG. 9 is a schematic cross-sectional view of the glass resin laminate before processing in the second modification. 図１０は、第３の変形例における加工前のガラス樹脂積層体の略図的断面図である。FIG. 10 is a schematic cross-sectional view of the glass resin laminate before processing in the third modification. 図１１は、第２の実施形態において、ガラス積層体の変形に用いる治具の略図的断面図である。FIG. 11 is a schematic cross-sectional view of a jig used for deformation of a glass laminate in the second embodiment. 図１２は、第２の実施形態において、ガラス樹脂積層体を成形する第２の工程を説明するための略図的断面図である。FIG. 12 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate in the second embodiment. 図１３は、第２の実施形態において、ガラス樹脂積層体を成形する第２の工程を説明するための略図的断面図である。FIG. 13 is a schematic cross-sectional view for explaining a second step of molding a glass resin laminate in the second embodiment.
　以下、本発明を実施した好ましい形態の一例について説明する。但し、以下の実施形態は単なる一例である。本発明は、以下の実施形態に何ら限定されない。 Hereinafter, an example of a preferable embodiment in which the present invention is implemented will be described. However, the following embodiment is merely an example. The present invention is not limited to the following embodiments.
　本実施形態において説明するガラス樹脂積層体の製造方法は、樹脂板と、樹脂板の上に積層されたガラス板とを有する湾曲状ガラス樹脂積層体を製造するための方法である。 The method for producing a glass resin laminate described in this embodiment is a method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate.
　本実施形態においては、まず、樹脂板１０及びガラス板２０（図１を参照）を用意する。 In this embodiment, first, a resin plate 10 and a glass plate 20 (see FIG. 1) are prepared.
　樹脂板１０は、製造しようとする湾曲状ガラス樹脂積層体に求められる特性や、ガラス板２０の種類や形状寸法に応じて適宜選択することができる。樹脂板１０は、例えば、押出成形などにより形成することができる。樹脂板１０の厚みは、例えば、０．１ｍｍ～１０ｍｍ程度とすることができる。 The resin plate 10 can be appropriately selected according to the characteristics required for the curved glass resin laminate to be manufactured and the type and shape of the glass plate 20. The resin plate 10 can be formed by, for example, extrusion molding. The thickness of the resin plate 10 can be about 0.1 mm to 10 mm, for example.
　ガラス板２０も、製造しようとする湾曲状ガラス樹脂積層体に求められる特性や、樹脂板１０の種類や形状寸法に応じて適宜選択することができる。ガラス板２０は、例えば、珪酸塩系ガラス、硼酸塩系ガラス、硼珪酸塩系ガラス、リン酸塩系ガラス、硼リン酸塩系ガラス、弗リン酸塩系ガラス、無アルカリガラスなどの種々のガラスにより形成することができる。また、ガラス板２０は、結晶化ガラスからなるものであってもよい。ガラス板２０の厚みは、例えば、５μｍ～１０ｍｍ程度とすることができる。 The glass plate 20 can also be appropriately selected according to the characteristics required for the curved glass resin laminate to be manufactured and the type and shape of the resin plate 10. The glass plate 20 is, for example, various types such as silicate glass, borate glass, borosilicate glass, phosphate glass, borophosphate glass, fluorophosphate glass, and alkali-free glass. It can be formed of glass. The glass plate 20 may be made of crystallized glass. The thickness of the glass plate 20 can be, for example, about 5 μm to 10 mm.
　なお、樹脂板１０の厚みは、ガラス板２０の厚みよりも大きいことが好ましい。 The thickness of the resin plate 10 is preferably larger than the thickness of the glass plate 20.
　次に、図１に示すように、樹脂板１０とガラス板２０とを積層し、接合することにより、ガラス樹脂積層体１を形成する（第１の工程：接合工程）。なお、本実施形態では、樹脂板１０とガラス板２０とのそれぞれは円板状であり、樹脂板１０の方がガラス板２０よりも大きい。本実施形態では、ガラス板２０を、樹脂板１０の中央部に接合する。 Next, as shown in FIG. 1, a glass resin laminate 1 is formed by laminating and bonding the resin plate 10 and the glass plate 20 (first step: bonding step). In the present embodiment, each of the resin plate 10 and the glass plate 20 has a disk shape, and the resin plate 10 is larger than the glass plate 20. In the present embodiment, the glass plate 20 is joined to the central portion of the resin plate 10.
　本実施形態において、樹脂板１０とガラス板２０との接合方法は特に限定されない。樹脂板１０とガラス板２０とは、例えば粘着剤や接着剤を用いて接合することができる。 In this embodiment, the joining method of the resin plate 10 and the glass plate 20 is not particularly limited. The resin plate 10 and the glass plate 20 can be bonded using, for example, an adhesive or an adhesive.
　樹脂板１０とガラス板２０とを接着剤を用いて接合する場合に使用する接着剤は、例えば、熱硬化性樹脂や光硬化性樹脂などのエネルギー線硬化樹脂であってもよい。 The adhesive used when the resin plate 10 and the glass plate 20 are joined using an adhesive may be, for example, an energy ray curable resin such as a thermosetting resin or a photocurable resin.
　なお、樹脂板１０とガラス板２０とは、樹脂板１０とガラス板２０とがガラス樹脂積層体１の加工時に剥離しない程度の強さで接合されている限りにおいて、ガラス板２０の全面で樹脂板１０に接合されている必要は必ずしもない。例えば、ガラス板２０は、部分的に樹脂板１０に接合されていてもよい。 The resin plate 10 and the glass plate 20 are resin on the entire surface of the glass plate 20 as long as the resin plate 10 and the glass plate 20 are bonded with such a strength that they do not peel when the glass resin laminate 1 is processed. It is not always necessary to be joined to the plate 10. For example, the glass plate 20 may be partially joined to the resin plate 10.
　次に、ガラス樹脂積層体１を成形する第２の工程（成形工程）を行う。この第２の工程では、ガラス樹脂積層体１を、少なくとも一部が湾曲状となるように変形させた状態で樹脂板を硬化させることにより、平板状であったガラス樹脂積層体１を成形する。これにより、湾曲状ガラス樹脂積層体２を製造することができる。 Next, a second step (molding step) for molding the glass resin laminate 1 is performed. In this 2nd process, the glass resin laminated body 1 which was flat form is shape | molded by hardening a resin plate in the state which deform | transformed the glass resin laminated body 1 so that at least one part might become curved shape. . Thereby, the curved glass resin laminated body 2 can be manufactured.
　本実施形態では、上記第２の工程を、図２及び図３に示す治具３０を用いて行う。 In the present embodiment, the second step is performed using the jig 30 shown in FIGS.
　図２及び図３に示すように、治具３０の表面３０ａには、本実施形態において製造しようとしている湾曲状ガラス樹脂積層体２の形状に対応した凹部３０ｂが形成されている。本実施形態では、凹部３０ｂは、円柱状である。凹部３０ｂは、治具３０の側面に開口している連通孔３０ｃに接続されている。この連通孔３０ｃに、減圧ポンプなどの減圧機構を接続することによって、凹部３０ｂを減圧することができる。 As shown in FIGS. 2 and 3, the surface 30a of the jig 30 is formed with a recess 30b corresponding to the shape of the curved glass resin laminate 2 to be manufactured in the present embodiment. In the present embodiment, the recess 30b has a cylindrical shape. The recess 30 b is connected to a communication hole 30 c that is open on the side surface of the jig 30. The recess 30b can be decompressed by connecting a decompression mechanism such as a decompression pump to the communication hole 30c.
　表面３０ａの凹部３０ｂの周囲には、円環状の凹部３０ｄが形成されている。凹部３０ｄは、治具３０の側面に開口している連通孔３０ｅに接続されている。この連通孔３０ｅに、減圧ポンプなどの減圧機構を接続することによって、凹部３０ｄを減圧することができる。 An annular recess 30d is formed around the recess 30b on the surface 30a. The recess 30 d is connected to a communication hole 30 e that is open on the side surface of the jig 30. The recess 30d can be decompressed by connecting a decompression mechanism such as a decompression pump to the communication hole 30e.
　なお、治具３０の材質は、治具３０がガラス樹脂積層体１を変形させるに際して十分な剛性を有する限り、特に限定されない。治具３０は、例えばステンレスやアルミニウムにより形成することができる。 Note that the material of the jig 30 is not particularly limited as long as the jig 30 has sufficient rigidity when the glass resin laminate 1 is deformed. The jig 30 can be formed of, for example, stainless steel or aluminum.
　本実施形態では、図４に示すように、まず、この治具３０の表面３０ａの上に、凹部３０ｂ、３０ｄを覆うようにガラス樹脂積層体１を配置する。次に、連通孔３０ｅに接続されている減圧機構３１を駆動させることにより、凹部３０ｄを減圧する。これにより、ガラス樹脂積層体１を治具３０の表面３０ａ上に固定する。 In this embodiment, as shown in FIG. 4, first, the glass resin laminate 1 is disposed on the surface 30a of the jig 30 so as to cover the recesses 30b and 30d. Next, the depression 30d is decompressed by driving the decompression mechanism 31 connected to the communication hole 30e. Thereby, the glass resin laminated body 1 is fixed on the surface 30 a of the jig 30.
　次に、連通孔３０ｃに接続されている減圧機構３２を駆動させることにより、凹部３０ｂを減圧する。そうすることにより、図５に示すように、ガラス樹脂積層体１の凹部３０ｂの上方に位置する部分を、凹部３０ｂ側に向かって凸状に変形させる。その状態を維持したまま、樹脂板１０を硬化させる。その後、ガラス樹脂積層体１を治具３０から取り外すことにより、図６に示すように湾曲状ガラス樹脂積層体２が得られる。最後に、図６に示すカッティングラインＬに沿ってカットする。その結果、図７に示すように、樹脂板１０の中央部１０ａと、ガラス板２０との積層体からなり、湾曲状ガラス樹脂積層体２を製造することができる。 Next, the recess 30b is decompressed by driving the decompression mechanism 32 connected to the communication hole 30c. By doing so, as shown in FIG. 5, the part located above the recessed part 30b of the glass resin laminated body 1 is deform | transformed convexly toward the recessed part 30b side. While maintaining this state, the resin plate 10 is cured. Thereafter, by removing the glass resin laminate 1 from the jig 30, the curved glass resin laminate 2 is obtained as shown in FIG. Finally, cut along the cutting line L shown in FIG. As a result, as shown in FIG. 7, the curved glass resin laminate 2 can be manufactured, which is composed of a laminate of the central portion 10 a of the resin plate 10 and the glass plate 20.
　なお、本実施形態において、樹脂板１０の硬化方法は特に限定されない。樹脂板１０の硬化方法は、樹脂板１０の種類に応じて適宜選択することができる。 In the present embodiment, the method for curing the resin plate 10 is not particularly limited. The curing method of the resin plate 10 can be appropriately selected according to the type of the resin plate 10.
　例えば、樹脂板１０が熱可塑性樹脂からなるものである場合は、図５に示す状態を維持したまま、樹脂板１０を、樹脂板１０のガラス転移温度（Ｔｇ）以上にまで加熱した後に、樹脂板１０を、樹脂板１０のガラス転移温度（Ｔｇ）未満にまで冷却することにより、樹脂板１０の硬化を行うことができる。 For example, when the resin plate 10 is made of a thermoplastic resin, the resin plate 10 is heated to the glass transition temperature (Tg) or higher of the resin plate 10 while maintaining the state shown in FIG. The resin plate 10 can be cured by cooling the plate 10 to below the glass transition temperature (Tg) of the resin plate 10.
　また、例えば、樹脂板１０がエネルギー線硬化性樹脂からなるものである場合は、樹脂板１０にエネルギー線を照射することにより樹脂板１０を硬化させることができる。具体的には、樹脂板１０が熱硬化性樹脂からなるものである場合は、樹脂板１０に熱線を照射することにより樹脂板１０を硬化させることができる。また、樹脂板１０が光硬化性樹脂からなるものである場合は、樹脂板１０に光線を照射することにより樹脂板１０を硬化させることができる。 For example, when the resin plate 10 is made of an energy ray curable resin, the resin plate 10 can be cured by irradiating the resin plate 10 with energy rays. Specifically, when the resin plate 10 is made of a thermosetting resin, the resin plate 10 can be cured by irradiating the resin plate 10 with heat rays. Moreover, when the resin board 10 consists of photocurable resin, the resin board 10 can be hardened by irradiating the resin board 10 with a light ray.
　以上説明したように、本実施形態の湾曲状ガラス樹脂積層体２の製造方法によれば、ガラス板２０を軟化させる必要がないため、ガラス板２０をモールドプレスする場合とは異なり、湾曲状ガラス樹脂積層体２の製造に大型の設備が必要とならず、また、湾曲状ガラス樹脂積層体２を安価に製造することができる。 As described above, according to the method for manufacturing the curved glass resin laminate 2 of the present embodiment, since it is not necessary to soften the glass plate 20, unlike the case of mold pressing the glass plate 20, the curved glass. Large-scale equipment is not required for the production of the resin laminate 2, and the curved glass resin laminate 2 can be produced at low cost.
　また、ガラス板２０を軟化させる必要がないため、本実施形態に係る湾曲状ガラス樹脂積層体２の製造方法は、ガラス板２０が薄い場合であっても好適に使用することができる。 Moreover, since it is not necessary to soften the glass plate 20, the manufacturing method of the curved glass resin laminated body 2 which concerns on this embodiment can be used suitably even when the glass plate 20 is thin.
　さらに、ガラス板２０を軟化させる必要がないため、ガラス板２０を軟化させることによるガラス板２０の表面の変形を抑制することができる。従って、高い形状精度の表面を有する湾曲状ガラス樹脂積層体２を製造することができる。 Furthermore, since it is not necessary to soften the glass plate 20, deformation of the surface of the glass plate 20 due to softening of the glass plate 20 can be suppressed. Therefore, the curved glass resin laminate 2 having a surface with high shape accuracy can be manufactured.
　このような観点からは、樹脂板１０の硬化の際に、樹脂板１０が加熱される場合は、上記第２の工程をガラス板２０の軟化温度以下で行うことが好ましく、ガラス板２０の歪点以下で行うことがより好ましい。このようにすることによって、第２の工程におけるガラス板２０の表面の変形を抑制することができる。その結果、より高い形状精度の表面を有する湾曲状ガラス樹脂積層体２を製造することができる。 From such a viewpoint, when the resin plate 10 is heated when the resin plate 10 is cured, the second step is preferably performed at a temperature equal to or lower than the softening temperature of the glass plate 20. It is more preferable to carry out below the point. By doing in this way, the deformation | transformation of the surface of the glass plate 20 in a 2nd process can be suppressed. As a result, the curved glass resin laminate 2 having a surface with higher shape accuracy can be manufactured.
　但し、この場合は、ガラス板２０が弾性変形した状態となるため、治具３０からガラス樹脂積層体１を取り外すと、ガラス板２０の弾性力により、ガラス樹脂積層体１の湾曲部の曲率半径が小さくなる方向にガラス樹脂積層体１が変形する。このガラス樹脂積層体１の変形を抑制し、所望の形状の湾曲状ガラス樹脂積層体２を得る観点から、樹脂板１０は、ガラス板２０よりも高剛性を有するような厚みを有するものであることが好ましい。具体的には、樹脂板１０の厚みは、ガラス板２０の厚みよりも大きいことが好ましく、ガラス板２０の厚みの５倍以上であることがより好ましく、１０倍以上であることがさらに好ましい。 However, in this case, since the glass plate 20 is in an elastically deformed state, when the glass resin laminate 1 is removed from the jig 30, the radius of curvature of the curved portion of the glass resin laminate 1 is caused by the elastic force of the glass plate 20. The glass resin laminate 1 is deformed in the direction in which the value decreases. From the viewpoint of suppressing the deformation of the glass resin laminate 1 and obtaining the curved glass resin laminate 2 having a desired shape, the resin plate 10 has such a thickness as to have higher rigidity than the glass plate 20. It is preferable. Specifically, the thickness of the resin plate 10 is preferably larger than the thickness of the glass plate 20, more preferably 5 times or more the thickness of the glass plate 20, and further preferably 10 times or more.
　本実施形態では、凹部３０ｂを減圧することによりガラス樹脂積層体１を変形させる。このため、ガラス樹脂積層体１の変形に際して、ガラス樹脂積層体１の一部に大きな応力が加わり難い。従って、湾曲状ガラス樹脂積層体２の製造工程において、ガラス樹脂積層体１が破損しにくい。その結果、高い良品率で湾曲状ガラス樹脂積層体２を製造することができる。 In the present embodiment, the glass resin laminate 1 is deformed by depressurizing the recess 30b. For this reason, when the glass resin laminate 1 is deformed, a large stress is hardly applied to a part of the glass resin laminate 1. Therefore, in the manufacturing process of the curved glass resin laminate 2, the glass resin laminate 1 is hardly damaged. As a result, the curved glass resin laminate 2 can be manufactured at a high yield rate.
　なお、本実施形態では、湾曲状ガラス樹脂積層体２の全体が湾曲状である場合について説明した。但し、本発明は、これに限定されない。本発明においては、ガラス樹脂積層体の少なくとも一部が湾曲形状を有していればよく、ガラス樹脂積層体の全体が湾曲形状を有している必要は必ずしもない。本発明においては、ガラス樹脂積層体は、一部に平板状の部分を有するものであってもよい。 In addition, in this embodiment, the case where the whole curved glass resin laminated body 2 was curved was demonstrated. However, the present invention is not limited to this. In the present invention, it is sufficient that at least a part of the glass resin laminate has a curved shape, and the entire glass resin laminate does not necessarily have a curved shape. In this invention, a glass resin laminated body may have a flat part in part.
　本実施形態では、ガラス板２０を軟化させずに弾性変形させる場合について説明した。但し、本発明は、これに限定されない。例えば、ガラス樹脂積層体の変形工程において、ガラス板２０を軟化させてもよい。 In the present embodiment, the case where the glass plate 20 is elastically deformed without being softened has been described. However, the present invention is not limited to this. For example, the glass plate 20 may be softened in the deformation process of the glass resin laminate.
　（第１の変形例）
　図８は、第１の変形例における加工前のガラス樹脂積層体の略図的断面図である。 (First modification)
FIG. 8 is a schematic cross-sectional view of the glass resin laminate before processing in the first modification.
　上記実施形態では、ガラス板２０に機能膜を形成せず、ガラス板２０単体を樹脂板１０に接合する例について説明した。但し、本発明は、これに限定されない。例えば、図８に示すように、少なくとも一方の表面の上に機能膜３３が形成されているガラス板２０を樹脂板１０に接合してもよい。このように、ガラス板２０の少なくとも一方の表面の上に機能膜３３を形成しておくことにより、湾曲状ガラス樹脂積層体２に種々の機能を付与することができる。例えば、反射膜としての機能膜３３を形成した場合は、反射部材としての機能を湾曲状ガラス樹脂積層体２に付与することができる。また、例えば、透明導電膜としての機能膜３３を形成した場合は、透明導電膜に通電することにより透明ヒータ機能を湾曲状ガラス樹脂積層体２に付与することができる。 In the above embodiment, an example in which a functional film is not formed on the glass plate 20 and the glass plate 20 alone is joined to the resin plate 10 has been described. However, the present invention is not limited to this. For example, as shown in FIG. 8, a glass plate 20 having a functional film 33 formed on at least one surface may be bonded to the resin plate 10. Thus, by forming the functional film 33 on at least one surface of the glass plate 20, various functions can be imparted to the curved glass resin laminate 2. For example, when the functional film 33 as a reflective film is formed, the function as a reflective member can be imparted to the curved glass resin laminate 2. For example, when the functional film 33 as a transparent conductive film is formed, the transparent heater function can be imparted to the curved glass resin laminate 2 by energizing the transparent conductive film.
　また、ガラス板２０の上に機能膜３３を形成するのであれば、樹脂板の上に機能膜を形成する場合とは異なり、成膜温度が高温となりがちな無機機能膜３３の形成も可能である。よって、本変形例のように、ガラス板２０の上に機能膜３３を形成する場合は、選択可能な機能膜３３の種類が多くなる。従って、種々の機能を有するガラス樹脂積層体を製造することができる。 Further, if the functional film 33 is formed on the glass plate 20, unlike the case where the functional film is formed on the resin plate, it is possible to form the inorganic functional film 33 that tends to have a high film formation temperature. is there. Therefore, when the functional film 33 is formed on the glass plate 20 as in this modification, the types of selectable functional films 33 are increased. Therefore, a glass resin laminate having various functions can be produced.
　なお、機能膜３３は、単一の膜により構成されていてもよいし、複数の膜の積層体により構成されていてもよい。また、機能膜３３は、無機膜であってもよいし、有機膜であってもよい。 Note that the functional film 33 may be formed of a single film or a stacked body of a plurality of films. The functional film 33 may be an inorganic film or an organic film.
　また、本変形例では、ガラス板２０の樹脂板１０とは反対側の表面の上に機能膜３３を形成する例について説明した。但し、本発明は、この構成に限定されない。例えば、ガラス板２０の樹脂板１０側の表面の上に機能膜３３を形成してもよいし、ガラス板２０の両面の上に機能膜３３を形成してもよい。 Further, in this modification, the example in which the functional film 33 is formed on the surface of the glass plate 20 opposite to the resin plate 10 has been described. However, the present invention is not limited to this configuration. For example, the functional film 33 may be formed on the surface of the glass plate 20 on the resin plate 10 side, or the functional film 33 may be formed on both surfaces of the glass plate 20.
　（第２及び第３の変形例）
　図９は、第２の変形例における加工前のガラス樹脂積層体の略図的断面図である。図１０は、第３の変形例における加工前のガラス樹脂積層体の略図的断面図である。 (Second and third modifications)
FIG. 9 is a schematic cross-sectional view of the glass resin laminate before processing in the second modification. FIG. 10 is a schematic cross-sectional view of the glass resin laminate before processing in the third modification.
　上記実施形態では、第１の工程において、一枚の樹脂板１０と、一枚のガラス板２０とを接合する例について説明した。但し、本発明は、この構成に限定されない。例えば、図９に示すように、樹脂板１０の両面にガラス板２０を接合してもよい。また、図１０に示すように、ガラス板２０の両面に樹脂板１０を接合してもよい。 In the above embodiment, an example in which one resin plate 10 and one glass plate 20 are joined in the first step has been described. However, the present invention is not limited to this configuration. For example, as shown in FIG. 9, glass plates 20 may be bonded to both surfaces of the resin plate 10. Moreover, as shown in FIG. 10, the resin plate 10 may be bonded to both surfaces of the glass plate 20.
　（第２の実施形態）
　図１１は、第２の実施形態において、ガラス積層体の変形に用いる治具の略図的断面図である。図１２は、第２の実施形態において、ガラス樹脂積層体を成形する第２の工程を説明するための略図的断面図である。図１３は、第２の実施形態において、ガラス樹脂積層体を成形する第２の工程を説明するための略図的断面図である。 (Second Embodiment)
FIG. 11 is a schematic cross-sectional view of a jig used for deformation of a glass laminate in the second embodiment. FIG. 12 is a schematic cross-sectional view for explaining a second step of molding the glass resin laminate in the second embodiment. FIG. 13 is a schematic cross-sectional view for explaining a second step of molding a glass resin laminate in the second embodiment.
　図１１に示すように、本実施形態では、治具３０は、連続気泡を有する多孔質体４０を備えている。多孔質体４０は、凹部３０ｂ内に配されている。多孔質体４０の表面４０ａは、成形しようとする湾曲状ガラス樹脂積層体２の形状に即した形状を有する。 As shown in FIG. 11, in the present embodiment, the jig 30 includes a porous body 40 having open cells. The porous body 40 is disposed in the recess 30b. The surface 40a of the porous body 40 has a shape that matches the shape of the curved glass resin laminate 2 to be molded.
　多孔質体４０の構成材料は、特に限定されない。多孔質体４０は、例えば、アルミナ、炭化ケイ素などのセラミックス、金属、カーボン等により構成することができる。 The constituent material of the porous body 40 is not particularly limited. The porous body 40 can be made of, for example, ceramics such as alumina and silicon carbide, metal, carbon, and the like.
　本実施形態においても、上記実施形態と同様に、図１２に示すように、多孔質体４０が配された凹部３０ｂを覆うようにガラス樹脂積層体１を配置する。次に、凹部３０ｂを減圧する。これにより、図１３に示すように、ガラス樹脂積層体１を多孔質体４０の表面４０ａに沿うように変形させる。その状態で樹脂板１０を硬化させる。これにより、多孔質体４０の表面４０ａの形状と実質的に同様の形状を有する湾曲状ガラス樹脂積層体２を得ることができる。 Also in the present embodiment, the glass resin laminate 1 is arranged so as to cover the concave portion 30b in which the porous body 40 is disposed, as shown in FIG. Next, the recess 30b is decompressed. Thereby, as shown in FIG. 13, the glass resin laminate 1 is deformed along the surface 40 a of the porous body 40. In this state, the resin plate 10 is cured. Thereby, the curved glass resin laminated body 2 which has a shape substantially the same as the shape of the surface 40a of the porous body 40 can be obtained.
　本実施形態のように、多孔質体４０を凹部３０ｂ内に配しておくことにより、多孔質体４０の表面４０ａの形状と実質的に同様の形状を有する湾曲状ガラス樹脂積層体２を製造することができる。よって、表面４０ａの形状を変化させることにより、成形される湾曲状ガラス樹脂積層体２の形状も任意の形状の湾曲状ガラス樹脂積層体２を得ることができる。例えば、曲率半径が大きな湾曲状ガラス樹脂積層体２を製造することもできるし、曲率半径が小さな湾曲状ガラス樹脂積層体２を製造することもできる。また、例えば、曲率半径が相互に異なる複数の部分を有する湾曲状ガラス樹脂積層体２を製造することもできる。また、非球面状、自由曲面状の湾曲状ガラス樹脂積層体２を製造することもできる。 As in the present embodiment, the curved glass resin laminate 2 having a shape substantially similar to the shape of the surface 40a of the porous body 40 is manufactured by arranging the porous body 40 in the recess 30b. can do. Therefore, by changing the shape of the surface 40a, the curved glass resin laminate 2 having an arbitrary shape can be obtained. For example, the curved glass resin laminate 2 having a large curvature radius can be produced, and the curved glass resin laminate 2 having a small curvature radius can also be produced. For example, the curved glass resin laminated body 2 which has several parts from which a curvature radius mutually differs can also be manufactured. Moreover, the curved glass resin laminated body 2 of aspherical surface and free-form surface shape can also be manufactured.
　また、多孔質体４０の表面４０ａの形状精度を高めておくことにより、形状精度の高い湾曲状ガラス樹脂積層体２を製造することができる。 Further, by increasing the shape accuracy of the surface 40a of the porous body 40, the curved glass resin laminate 2 with high shape accuracy can be manufactured.
　多孔質体４０の通気率は、１．０×１０－１３ｍ２以上であることが好ましく、５．０×１０－１３ｍ２以上であることがより好ましい。このように、多孔質体４０の通気率を高くすることにより、多孔質体４０が配された凹部３０ｂの減圧を迅速且つ容易に行うことができる。但し、多孔質体４０の通気率が高すぎると、多孔質体４０の剛性が低くなりすぎる場合がある。このため、多孔質体４０の通気率は、１．０×１０－１０ｍ２以下であることが好ましく、１．０×１０－１１ｍ２以下であることがより好ましい。同様の理由から、多孔質体４０の気孔率は、９０体積％以下であることが好ましく、８０体積％以下であることがより好ましい。なお、多孔質体４０の気孔率は、３０体積％以上であることが好ましい。 The air permeability of the porous body 40 is preferably 1.0 × 10 −13 m 2 or more, and more preferably 5.0 × 10 −13 m 2 or more. In this way, by increasing the air permeability of the porous body 40, the depression 30b in which the porous body 40 is disposed can be quickly and easily decompressed. However, if the air permeability of the porous body 40 is too high, the rigidity of the porous body 40 may be too low. Therefore, the air permeability of the porous body 40 is preferably 1.0 × 10 −10 m 2 or less, and more preferably 1.0 × 10 −11 m 2 or less. For the same reason, the porosity of the porous body 40 is preferably 90% by volume or less, and more preferably 80% by volume or less. In addition, it is preferable that the porosity of the porous body 40 is 30 volume% or more.
　多孔質体４０の表面４０ａに開口している気孔の直径は、１００μｍ以下であることが好ましく、５０μｍ以下であることが好ましい。多孔質体４０の表面４０ａに開口している気孔の直径が大きすぎると、気孔内に樹脂板１０や湾曲状ガラス樹脂積層体２が入り込んでしまい、得られる湾曲状ガラス樹脂積層体２の表面の形状精度が低くなってしまう場合があるためである。同様の観点から、多孔質体４０の表面４０ａに開口している気孔の直径は、ガラス板２０の厚み以下であることが好ましい。 The diameter of the pores opened on the surface 40a of the porous body 40 is preferably 100 μm or less, and preferably 50 μm or less. When the diameter of the pores opened on the surface 40a of the porous body 40 is too large, the resin plate 10 and the curved glass resin laminate 2 enter the pores, and the surface of the obtained curved glass resin laminate 2 is obtained. This is because the shape accuracy may be lowered. From the same viewpoint, it is preferable that the diameter of the pores opened on the surface 40 a of the porous body 40 is equal to or less than the thickness of the glass plate 20.
　１…成形前のガラス樹脂積層体
　２…湾曲状ガラス樹脂積層体
　１０…樹脂板
　１０ａ…樹脂板の中央部
　２０…ガラス板
　３０…治具
　３０ａ…治具の表面
　３０ｂ、３０ｄ…凹部
　３０ｃ、３０ｅ…連通孔
　３１，３２…減圧機構
　３３…機能膜 DESCRIPTION OF SYMBOLS 1 ... Glass resin laminated body before shaping | molding 2 ... Curved glass resin laminated body 10 ... Resin board 10a ... Central part of resin board 20 ... Glass plate 30 ... Jig 30a ... Jig surface 30b, 30d ... Recessed part 30c, 30e ... Communication holes 31, 32 ... Pressure reduction mechanism 33 ... Functional membrane

Claims (15)

  1. 　樹脂板と、前記樹脂板の上に積層されたガラス板とを有する湾曲状ガラス樹脂積層体の製造方法であって、
    　前記樹脂板と前記ガラス板とを積層し、接合することによりガラス樹脂積層体を形成する第１の工程と、
    　前記ガラス樹脂積層体を、少なくとも一部が湾曲状となるように変形させた状態で前記樹脂板を硬化させることにより、湾曲状ガラス樹脂積層体を得る第２の工程と、
    を備える、湾曲状ガラス樹脂積層体の製造方法。     A method for producing a curved glass resin laminate having a resin plate and a glass plate laminated on the resin plate,
    A first step of laminating and bonding the resin plate and the glass plate to form a glass resin laminate;
    A second step of obtaining a curved glass resin laminate by curing the resin plate in a state in which the glass resin laminate is deformed so that at least a part thereof is curved;
    A method for producing a curved glass resin laminate.
  2. 　前記樹脂板は、熱可塑性樹脂からなり、
    　前記第２の工程において、前記ガラス樹脂積層体の少なくとも一部を湾曲状に変形させた状態で前記樹脂板のガラス転移温度（Ｔｇ）以上にまで加熱した後に前記樹脂板のガラス転移温度（Ｔｇ）未満まで冷却することにより、湾曲状ガラス樹脂積層体を得る、請求項１に記載の湾曲状ガラス樹脂積層体の製造方法。     The resin plate is made of a thermoplastic resin,
    In the second step, at least a part of the glass resin laminate is deformed into a curved shape and heated to the glass transition temperature (Tg) or higher of the resin plate, and then the glass transition temperature (Tg) of the resin plate. The method for producing a curved glass resin laminate according to claim 1, wherein the curved glass resin laminate is obtained by cooling to less than.
  3. 　前記樹脂板は、エネルギー線硬化性樹脂からなり、
    　前記第２の工程において、前記ガラス樹脂積層体の少なくとも一部を湾曲状に変形させた状態で前記樹脂板にエネルギー線を照射して硬化させることにより、湾曲状ガラス樹脂積層体を得る、請求項１に記載の湾曲状ガラス樹脂積層体の製造方法。     The resin plate is made of energy ray curable resin,
    In the second step, a curved glass resin laminate is obtained by irradiating and curing the resin plate with energy rays in a state where at least a part of the glass resin laminate is deformed in a curved shape. Item 2. A method for producing a curved glass resin laminate according to Item 1.
  4. 　前記第２の工程において、前記湾曲状ガラス樹脂積層体の形状に対応した凹部が形成されている成形型の上に前記ガラス樹脂積層体を配置し、前記凹部を減圧することにより前記ガラス樹脂積層体が前記凹部側に凸状となるように前記ガラス樹脂積層体を変形させた状態で前記樹脂板を硬化させることにより、前記湾曲状ガラス樹脂積層体を得る、請求項１～３のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 In the second step, the glass resin laminate is disposed by placing the glass resin laminate on a mold in which a recess corresponding to the shape of the curved glass resin laminate is formed and decompressing the recess. 4. The curved glass resin laminate is obtained by curing the resin plate in a state where the glass resin laminate is deformed so that the body is convex toward the concave side. The manufacturing method of the curved glass resin laminated body of one term.
  5. 　前記成形型の凹部内に連続気泡を有する多孔質体を配した状態で前記成形型の上に前記ガラス樹脂積層体を配置し、前記凹部を減圧することにより前記ガラス樹脂積層体を前記多孔質体の表面に沿うように変形させた状態で前記樹脂板を硬化させることにより、前記湾曲状ガラス樹脂積層体を得る、請求項４に記載の湾曲状ガラス樹脂積層体の製造方法。 The glass resin laminate is disposed on the mold in a state where a porous body having open cells is disposed in the recess of the mold and the glass resin laminate is reduced in pressure by depressurizing the recess. The manufacturing method of the curved glass resin laminated body of Claim 4 which obtains the said curved glass resin laminated body by hardening the said resin plate in the state deform | transformed along the surface of a body.
  6. 　前記多孔質体の通気率が、１．０×１０－１３ｍ２以上である、請求項４に記載の湾曲状ガラス樹脂積層体の製造方法。 5. The method for producing a curved glass resin laminate according to claim 4, wherein the air permeability of the porous body is 1.0 × 10 −13 m 2 or more.
  7. 　前記多孔質体の気孔率が、９０体積％以下である、請求項４または５に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to claim 4 or 5, wherein the porosity of the porous body is 90% by volume or less.
  8. 　前記第２の工程を、前記ガラス板の軟化温度以下の温度で行う、請求項１～７のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to any one of claims 1 to 7, wherein the second step is performed at a temperature equal to or lower than a softening temperature of the glass plate.
  9. 　前記第２の工程を、前記ガラス板の歪点以下の温度で行う、請求項８に記載の湾曲状ガラス樹脂積層体の製造方法。 The manufacturing method of the curved glass resin laminated body of Claim 8 which performs the said 2nd process at the temperature below the strain point of the said glass plate.
  10. 　前記ガラス板の少なくとも一方の表面の上には、機能膜が形成されている、請求項１～９のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to any one of claims 1 to 9, wherein a functional film is formed on at least one surface of the glass plate.
  11. 　前記樹脂板の厚みは、前記ガラス板の厚みよりも厚い、請求項１～１０のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to any one of claims 1 to 10, wherein a thickness of the resin plate is thicker than a thickness of the glass plate.
  12. 　前記ガラス板の厚みは、５μｍ～１ｍｍの範囲内にある、請求項１～１１のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to any one of claims 1 to 11, wherein the glass plate has a thickness in a range of 5 袖 m to 1 mm.
  13. 　前記樹脂板の厚みは、０．１ｍｍ～１０ｍｍの範囲内にある、請求項１～１２のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to any one of claims 1 to 12, wherein a thickness of the resin plate is in a range of 0.1 mm to 10 mm.
  14. 　前記第１の工程において、前記樹脂板の両面に前記ガラス板を接合する、請求項１～１３のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to any one of claims 1 to 13, wherein, in the first step, the glass plates are bonded to both surfaces of the resin plate.
  15. 　前記第１の工程において、前記ガラス板の両面に前記樹脂板を接合する、請求項１～１４のいずれか一項に記載の湾曲状ガラス樹脂積層体の製造方法。 The method for producing a curved glass resin laminate according to any one of claims 1 to 14, wherein, in the first step, the resin plate is bonded to both surfaces of the glass plate.
PCT/JP2011/062784 2010-06-10 2011-06-03 Method for manufacturing curved glass-resin laminate WO2011155403A1 (en)

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JP2014075061A (en) * 2012-10-05 2014-04-24 Nippon Electric Glass Co Ltd Glass film laminate for touch panel, touch panel, and manufacturing method of glass film laminate for touch panel
JP2014209136A (en) * 2013-04-16 2014-11-06 大日本印刷株式会社 Method for manufacturing transmission type curve surface screen
US20170274626A1 (en) 2014-08-20 2017-09-28 Corning Incorporated Methods of forming shaped glass articles from glass sheets
US10065406B2 (en) 2013-02-26 2018-09-04 Corning Incorporated Methods of forming shape-retaining flexible glass-polymer laminates
FR3078284A1 (en) * 2018-02-27 2019-08-30 Faurecia Interieur Industrie PANEL OF GARNISSAGE
WO2022030392A1 (en) * 2020-08-06 2022-02-10 Ａｇｃ株式会社 Method for producing multilayer body, multilayer body and method for producing semiconductor package
US11292343B2 (en) 2016-07-05 2022-04-05 Corning Incorporated Cold-formed glass article and assembly process thereof
US11331886B2 (en) 2016-06-28 2022-05-17 Corning Incorporated Laminating thin strengthened glass to curved molded plastic surface for decorative and display cover application
US11332011B2 (en) 2017-07-18 2022-05-17 Corning Incorporated Cold forming of complexly curved glass articles
US11384001B2 (en) 2016-10-25 2022-07-12 Corning Incorporated Cold-form glass lamination to a display
US11459268B2 (en) 2017-09-12 2022-10-04 Corning Incorporated Tactile elements for deadfronted glass and methods of making the same
US11518146B2 (en) 2018-07-16 2022-12-06 Corning Incorporated Method of forming a vehicle interior system
US11550148B2 (en) 2017-11-30 2023-01-10 Corning Incorporated Vacuum mold apparatus, systems, and methods for forming curved mirrors
US11586306B2 (en) 2017-01-03 2023-02-21 Corning Incorporated Vehicle interior systems having a curved cover glass and display or touch panel and methods for forming the same
US11597672B2 (en) 2016-03-09 2023-03-07 Corning Incorporated Cold forming of complexly curved glass articles
US11660963B2 (en) 2017-09-13 2023-05-30 Corning Incorporated Curved vehicle displays
US11685684B2 (en) 2017-05-15 2023-06-27 Corning Incorporated Contoured glass articles and methods of making the same
US11685685B2 (en) 2019-07-31 2023-06-27 Corning Incorporated Method and system for cold-forming glass
US11718071B2 (en) 2018-03-13 2023-08-08 Corning Incorporated Vehicle interior systems having a crack resistant curved cover glass and methods for forming the same
US11745588B2 (en) 2017-10-10 2023-09-05 Corning Incorporated Vehicle interior systems having a curved cover glass with improved reliability and methods for forming the same
US11767250B2 (en) 2017-11-30 2023-09-26 Corning Incorporated Systems and methods for vacuum-forming aspheric mirrors
US11768369B2 (en) 2017-11-21 2023-09-26 Corning Incorporated Aspheric mirror for head-up display system and methods for forming the same
US11772491B2 (en) 2017-09-13 2023-10-03 Corning Incorporated Light guide-based deadfront for display, related methods and vehicle interior systems
US11772361B2 (en) 2020-04-02 2023-10-03 Corning Incorporated Curved glass constructions and methods for forming same
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US9927893B2 (en) 2012-10-05 2018-03-27 Nippon Electric Glass Co., Ltd. Glass film laminate for touch panel, touch panel, and method of manufacturing glass film laminate for touch panel
JP2014075061A (en) * 2012-10-05 2014-04-24 Nippon Electric Glass Co Ltd Glass film laminate for touch panel, touch panel, and manufacturing method of glass film laminate for touch panel
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US10065406B2 (en) 2013-02-26 2018-09-04 Corning Incorporated Methods of forming shape-retaining flexible glass-polymer laminates
US11059270B2 (en) 2013-02-26 2021-07-13 Corning Incorporated Methods of forming shape-retaining flexible glass-polymer laminates
JP2014209136A (en) * 2013-04-16 2014-11-06 大日本印刷株式会社 Method for manufacturing transmission type curve surface screen
US11400691B2 (en) 2014-08-20 2022-08-02 Corning Incorporated Methods of forming shaped glass articles from glass sheets
US20170274626A1 (en) 2014-08-20 2017-09-28 Corning Incorporated Methods of forming shaped glass articles from glass sheets
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US11597672B2 (en) 2016-03-09 2023-03-07 Corning Incorporated Cold forming of complexly curved glass articles
US11331886B2 (en) 2016-06-28 2022-05-17 Corning Incorporated Laminating thin strengthened glass to curved molded plastic surface for decorative and display cover application
US11338556B2 (en) 2016-06-28 2022-05-24 Corning Incorporated Laminating thin strengthened glass to curved molded plastic surface for decorative and display cover application
US11292343B2 (en) 2016-07-05 2022-04-05 Corning Incorporated Cold-formed glass article and assembly process thereof
US11850942B2 (en) 2016-07-05 2023-12-26 Corning Incorporated Cold-formed glass article and assembly process thereof
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US11384001B2 (en) 2016-10-25 2022-07-12 Corning Incorporated Cold-form glass lamination to a display
US11899865B2 (en) 2017-01-03 2024-02-13 Corning Incorporated Vehicle interior systems having a curved cover glass and a display or touch panel and methods for forming the same
US11586306B2 (en) 2017-01-03 2023-02-21 Corning Incorporated Vehicle interior systems having a curved cover glass and display or touch panel and methods for forming the same
US11685684B2 (en) 2017-05-15 2023-06-27 Corning Incorporated Contoured glass articles and methods of making the same
US11332011B2 (en) 2017-07-18 2022-05-17 Corning Incorporated Cold forming of complexly curved glass articles
US11459268B2 (en) 2017-09-12 2022-10-04 Corning Incorporated Tactile elements for deadfronted glass and methods of making the same
US11713276B2 (en) 2017-09-12 2023-08-01 Corning Incorporated Tactile elements for deadfronted glass and methods of making the same
US11919396B2 (en) 2017-09-13 2024-03-05 Corning Incorporated Curved vehicle displays
US11660963B2 (en) 2017-09-13 2023-05-30 Corning Incorporated Curved vehicle displays
US11772491B2 (en) 2017-09-13 2023-10-03 Corning Incorporated Light guide-based deadfront for display, related methods and vehicle interior systems
US11745588B2 (en) 2017-10-10 2023-09-05 Corning Incorporated Vehicle interior systems having a curved cover glass with improved reliability and methods for forming the same
US11768369B2 (en) 2017-11-21 2023-09-26 Corning Incorporated Aspheric mirror for head-up display system and methods for forming the same
US11550148B2 (en) 2017-11-30 2023-01-10 Corning Incorporated Vacuum mold apparatus, systems, and methods for forming curved mirrors
US11767250B2 (en) 2017-11-30 2023-09-26 Corning Incorporated Systems and methods for vacuum-forming aspheric mirrors
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