Manufacturing method of glass laminate, manufacturing method of molded package, glass laminate and molded package
Patent Information
- Application Number
- JP2023137906
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-08-28
- Publication Date
- 2025-03-12
AI Technical Summary
【0024】 ガラスフィルムの表面にモールド用樹脂を配置することができる。そして、ガラス積層体の中では、ガラスフィルムは、樹脂部材よりも外的要因による変形が小さい。これにより、モールド用樹脂がガラス積層体の変形に伴って変形することを抑制することができるため、モールド用樹脂の成形用凹凸部分が歪むことを抑制することができる。この結果、精密な成形用凹凸部分を形成することができる。
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Figure 2025032569000001_ABST
Abstract
Description
[Technical field]
[0001] The technology disclosed in this specification relates to a method for manufacturing a glass laminate, a glass laminate, a method for manufacturing a molded package, and a molded package. [Background technology]
[0002] A mold having flexibility capable of elastic bending deformation may be used in a manufacturing process of an optical device, etc. For example, Patent Document 1 discloses an imprint mold in which a molding material is formed on a base material composed of a glass sheet and a resin sheet. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2020-49656 A Summary of the Invention [Problem to be solved by the invention]
[0004] Patent Document 1 discloses that when a molding material for an imprint mold is formed on the main surface of a glass sheet, a silane coupling treatment layer is formed in advance on the main surface of a single glass sheet, and then a resin sheet is bonded to the other main surface of the glass sheet via an adhesive layer to manufacture a substrate. However, in the case of a thin glass film such as a glass sheet, a large warp occurs in the glass film before the resin member is bonded, and it may be difficult to bond the resin member and the glass film together.
[0005] An object of the present specification is to provide a method for producing a glass laminate that can suppress the occurrence of warping of a glass film before a resin member is bonded to the glass film. [Means for solving the problem]
[0006] A first embodiment of the technology disclosed in this specification is a method for manufacturing a glass laminate, which includes a supplying step of supplying a coupling agent to both sides of a glass film, a forming step of heating the glass film to which the coupling agent has been supplied to form coupling agent layers on both sides of the glass film, and an adhesion step of adhering a resin member capable of transmitting light via the coupling agent layer to one side of the glass film.
[0007] When forming a resin mold layer of an imprint mold package on the surface of a glass film, a coupling agent layer is formed on the surface of the glass film, so that the resin mold layer, which is difficult to directly adhere to the glass film, can be disposed on the surface of the glass film via the coupling agent layer. In an embodiment in which the coupling agent is supplied only to one surface of the glass film, as in the technology of Patent Document 1, the glass film warps due to the membrane stress caused by the difference in the thermal expansion coefficient between the glass film and the coupling agent. In the above configuration, the coupling agent layer is disposed on both sides of the glass film, so that the membrane stress in the heat treatment process can be suppressed and the warping of the glass film before the resin member bonding process can be reduced.
[0008] As a second aspect of the technology disclosed in the present specification, in the above-mentioned first aspect, the supplying step may include a step of immersing both surfaces of the glass film in the coupling agent in a liquid state.
[0009] In the above configuration, the coupling agent can be supplied evenly to both sides of the glass film.
[0010] A third form of the technology disclosed in the present specification is the first or second form, wherein the resin member is in the form of a film, and in the bonding process, the resin member may be bonded to the one surface of the glass film via the coupling agent layer and the adhesive layer.
[0011] By bonding the film-like resin members with the adhesive layer, a glass laminate can be produced efficiently.
[0012] A fourth form of the technology disclosed in the present specification is, in the above-mentioned first to third forms, when a maximum length of the glass film after the forming step and before the bonding step is L, and a height of the glass film from a horizontal plane when the glass film is placed on the horizontal plane is H, H / L may be 0.05 or less.
[0013] By suppressing the amount of warping of the glass film and the coupling agent layer after the heat treatment step, the occurrence of warping in the glass laminate can be suppressed and the glass film and the resin member can be easily attached to each other.
[0014] The fifth embodiment of the technology disclosed in this specification is a method for manufacturing a molded package. The method for manufacturing a molded package includes a supplying step of supplying a coupling agent to both sides of a glass film, a forming step of heating the glass film to which the coupling agent has been supplied to form a coupling agent layer on both sides of the glass film, a bonding step of bonding a resin member capable of transmitting light through the coupling agent layer to one side of the glass film, a resin disposing step of disposing a molding resin that is hardened by the light through the coupling agent layer on the other side of the glass film, and a molding step of hardening the molding resin by irradiating the molding resin with the light while the molding resin is in close contact with a molding die to form a molding uneven portion.
[0015] By forming a coupling agent layer on at least one side of the glass film, the molding resin can be disposed on the glass film via the coupling agent layer. By disposing the coupling agent layer on both sides of the glass film, the warping of the glass film and the coupling agent layer during the heat treatment process can be suppressed. This can suppress the warping of the resin mold and facilitate the bonding of the glass film and the resin member.
[0016] As a sixth aspect of the technology disclosed in the present specification, in the fifth aspect, the resin member may be in the form of a film.
[0017] A seventh form of the technology disclosed in the present specification is the above-mentioned fifth or sixth form, wherein in the bonding step, a resin member capable of transmitting light through the coupling agent layer and the adhesive layer may be bonded to one side of the glass film.
[0018] By bonding the film-like resin members with an adhesive layer, the molded package can be manufactured efficiently.
[0019] An eighth embodiment of the technology disclosed in this specification is a glass laminate. The glass laminate includes a glass film, coupling agent layers disposed on both sides of the glass film, an adhesive layer disposed on one side of the glass film via the coupling agent layer, and a light-transmitting resin member bonded to the one side of the glass film via the coupling agent layer and the adhesive layer.
[0020] By forming a coupling agent layer on the surface of the glass film, a material that is difficult to directly place on the glass film can be placed on the surface of the glass film via the coupling agent layer. In an embodiment in which the coupling agent is supplied to only one surface of the glass film, warping occurs in the glass film and the coupling agent layer due to film stress caused by the difference in thermal expansion coefficient between the glass film and the coupling agent. In the above configuration, by placing the coupling agent layer on both sides of the glass film, it is possible to suppress the film stress in the heat treatment process and reduce the warping of the glass plate.
[0021] As a ninth aspect of the technology disclosed in the present specification, in the above-mentioned eighth aspect, the glass film may have a thickness of 10 μm or more and 300 μm or less.
[0022] By disposing the coupling agent layers on both sides of the glass film, even when the glass film is thin and has low rigidity, the glass film can be prevented from warping.
[0023] A tenth embodiment of the technology disclosed in this specification is a molded package. The molded package includes a glass laminate including a glass film, coupling agent layers formed on both sides of the glass film, and a light-transmitting resin member bonded to one side of the glass film via the coupling agent layer, and a molding concave-convex portion disposed on the other side of the glass film of the glass laminate and on the side opposite to the glass laminate.
[0024] A molding resin can be disposed on the surface of the glass film. In the glass laminate, the glass film is less deformed by external factors than the resin member. This makes it possible to suppress the molding resin from being deformed in association with the deformation of the glass laminate, thereby suppressing distortion of the molding concave-convex portion of the molding resin. As a result, a precise molding concave-convex portion can be formed.
[0025] An eleventh aspect of the technology disclosed in this specification, in the tenth aspect, may further include an adhesive layer disposed on the one surface of the glass film. [Brief description of the drawings]
[0026] [Figure 1] FIG. 2 shows a vertical cross-sectional view of a molded package according to an embodiment. [Diagram 2] 2 shows a flowchart illustrating a method for manufacturing a molded package according to an embodiment. [Diagram 3] FIG. 13 is a schematic perspective view illustrating a glass film and a liquid tank for explaining a supplying step of an embodiment. [Figure 4] FIG. 2 is a schematic side view showing a warped state of a glass film and a coupling agent layer after a forming process of an embodiment. [Diagram 5]FIG. 2 is a vertical cross-sectional view of a molding resin, a glass laminate, and a molding die for explaining a molding process in the embodiment. [Figure 6] FIG. 2 is a vertical cross-sectional view for explaining nanoimprinting using a mold package according to an embodiment of the present invention. [Figure 7] 1A and 1B are longitudinal sectional views for explaining release of the molded package of the embodiment from a workpiece; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0027] FIG. 1 shows a vertical cross-sectional view of the molded package 10, and shows a cross-section along a vertical plane passing through the center of the molded package 10. The molded package 10 includes a glass laminate 20 including a glass film 12, a pair of coupling agent layers 14 and 16, an adhesive layer 17, and a resin member 18, and a molding resin 21. In plan view (i.e., viewed from above in FIG. 1), the molded package 10 has a quadrangular shape. The shape of the molded package 10 in plan view is not particularly limited. The thicknesses of the layers 12, 14, 16, 17, 18, and 21 are not accurately reflected. The molded package 10 has flexibility that allows elastic bending deformation. Therefore, the molded package 10 can be deformed into a shape that conforms to an object that it comes into contact with. For example, the molded package 10 can be deformed into a state that conforms to a plane as shown in FIG. 1, or into a state that is bent endlessly like a roll or an endless belt. That is, the molded package 10 in FIG. 1 has so-called flexibility. The glass laminate 20, the glass film 12, and the resin member 18 also have flexibility.
[0028] The glass film 12 is less susceptible to deformation due to external factors such as thermal contraction, as compared with the resin member 18. Therefore, by using the glass film 12 as the mold package 10, a mold with high dimensional accuracy can be manufactured.
[0029] The glass film 12 is a flat thin-film glass having a thickness of 10 μm or more and 300 μm or less. As described above, in consideration of the case where the molded package 10 is used after being deformed from a flat shape, the glass film 12 preferably has a thickness of 200 μm or less, and more preferably has a thickness of 100 μm or less. On the other hand, in consideration of the mechanical strength of the glass film 12, the glass film 12 preferably has a thickness of 30 μm or more, and more preferably has a thickness of 50 μm or more. The glass film 12 is produced, for example, by the overflow method. In the overflow method, molten glass is made to overflow from a trough-shaped container. The glass overflowing from the container flows downward along each of both side surfaces of the container. The bottom surface of the container has a triangular prism shape that narrows downward from the lower end of the side surface. The glass flows along the bottom surface and meets at the apex part of the lower end of the triangular prism shape. A thin film-like glass is produced by cooling the glass flowing downward from the bottom surface of the container. Furthermore, by producing the glass film 12 using this method, the surface of the glass film 12 can be made very smooth.
[0030] The glass film 12 has a composition similar to that of any of alkali-free glass, borosilicate glass, soda glass (e.g., soda lime glass), high silica glass, and other oxide-based glasses mainly composed of silicon oxide. The glass film 12 may be chemically strengthened glass, in which case aluminosilicate glass can be used. The glass film 12 preferably has a high transmittance of ultraviolet light (e.g., wavelength of 365 nm) and a low thermal expansion coefficient. Specifically, the glass film 12 is preferably made of alkali-free glass containing 0.5 mass % or less of alkali metal oxide. The glass film 12 preferably has an ultraviolet light transmittance of 50% or more, and more preferably has a transmittance of 75% or more.
[0031] Coupling agent layers 14 and 16 are disposed on both surfaces 12a and 12b of the glass film 12. The coupling agent layers 14 and 16 are made of a silane coupling agent. The silane coupling agent may be, for example, a coupling agent whose functional group is an epoxy group (e.g., 3-glycidoxypropyltrimethoxysilane), a coupling agent whose functional group is an amino group (e.g., 3-aminopropyltriethoxysilane), a coupling agent whose functional group is a methacryl group (e.g., 3-methacryloxypropyltriethoxysilane), or a coupling agent whose functional group is an acrylic group (e.g., 3-acryloxypropyltrimethoxysilane). The coupling agent of the coupling agent layer 14 may be, for example, a coupling agent other than a silane coupling agent, such as a titanate-based or aluminate-based coupling agent. Each of the coupling agent layers 14 and 16 has a thickness of 1.0 μm or less. The thickness of the coupling agent layers 14 and 16 can be adjusted, for example, by a method of supplying the coupling agent to the glass film 12. By forming a coupling agent layer 16 on the surface 12b of the glass film 12, a molding resin 21 (described later), which is difficult to adhere directly to the glass film 12, can be placed on the surface 12b of the glass film 12 via the coupling agent layer 16.
[0032] A resin member 18 is bonded to one surface 12a (lower surface in FIG. 1) of the glass film 12 with a coupling agent layer 14 sandwiched therebetween. In a configuration consisting of only the glass film 12 without the resin member 18, the glass film 12 may easily break due to impact or may be too thin and difficult to handle. By using the resin member 18, it is possible to easily handle the glass film 12 while suppressing breakage. Examples of adhesives for bonding the glass film 12 and the resin member 18 include optically clear adhesives (i.e., OCA: Optical Clear Adhesive) and pressure sensitive adhesives (i.e., PSA: Pressure Sensitive Adhesive). Examples of adhesive components that can be used for the adhesive include acrylic adhesives, silicon adhesives, epoxy adhesives, and photocurable adhesives (e.g., ultraviolet curable adhesives). The ultraviolet transmittance of the adhesive is preferably 50% or more, and more preferably 75% or more. Taking into consideration light transmittance and the like, the adhesive member is preferably made of an optically clear adhesive. 1, the coupling agent layer 14 and the resin member 18 are bonded to each other by OCA. An adhesive layer 17 made of OCA is disposed between the coupling agent layer 14 and the resin member 18.
[0033] The resin member 18 is a flat plate made of, for example, epoxy (EP), polyamide (PA), polyamideimide (PAI), polyetheretherketone (PEEK), polybenzimidazole (PBI), polyethylene terephthalate (PET), polyethersulfone (PES), cyclic polyolefin (COP), polycarbonate (PC), polyvinyl chloride (PVC), urethane (PU), etc. In Fig. 1, the resin member 18 is a flat plate made of polyethylene terephthalate resin.
[0034] The resin member 18 preferably has a high transmittance of ultraviolet light, and the transmittance of the resin member 18 alone to ultraviolet light is preferably 50% or more, and more preferably 75% or more.
[0035] The resin member 18 is larger than the glass film 12 in a plan view. The resin member 18 is preferably, for example, 10 to 500 μm. When the thickness of the resin member 18 is 500 μm or less, it can be said that the resin member 18 is in the form of a film. However, from the viewpoint of improving flexibility and ultraviolet light transmittance, the thickness of the resin member 18 is more preferably 30 to 300 μm, and from the viewpoint of improving handleability, the thickness of the resin member 18 is more preferably 50 to 200 μm.
[0036] A molding resin 21 is adhered to the other surface 12b (upper surface in FIG. 1) of the glass film 12 with a coupling agent layer 16 sandwiched therebetween. The molding resin 21 is made of a resin for nanoimprinting. In the case of the photoimprinting method, the molding resin 21 may be, for example, a photocurable resin. In FIG. 1, a photoimprinting method using ultraviolet light is used as the nanoimprinting method, and an ultraviolet curable resin that does not require heat for curing is used as the molding resin 21. An uneven portion 22 is disposed on a surface 21a of the molding resin 21 opposite to the glass film 12. The uneven portion 22 has an uneven shape for forming a diffraction grating on a panel for a head-up display for displaying an image or the like in front of a driver of a car, for example.
[0037] (Manufacturing method of molded package) 2 to 5, a method for manufacturing the molded package 10 will be described. The molded package 10 is manufactured by first preparing a glass laminate 20, and then disposing a molding resin 21 on the prepared glass laminate 20.
[0038] As shown in Fig. 2, in steps S12 to S18, a glass laminate 20 is produced. In step S12, a preparation step of preparing a glass film 12 is performed. As described above, the glass film 12 is prepared by producing the glass film 12 by, for example, an overflow method. Note that the method of producing the glass film 12 is not particularly limited. The preparation step may include cleaning the surface of the glass film 12.
[0039] In S14, a supply step is performed in which the coupling agent is supplied to both surfaces 12a and 12b of the glass film 12 prepared in S12. For example, as shown in FIG. 3, the glass film 12 is immersed in a liquid tank 100 in which a liquid coupling agent is stored and then pulled up, so-called dipping, whereby the coupling agent can be supplied to both surfaces 12a and 12b of the glass film 12. With this configuration, it is possible to prevent the coupling agent from being unevenly supplied to each of the surfaces 12a and 12b of the glass film 12. In addition, the amounts of the coupling agent supplied to the surfaces 12a and 12b of the glass film 12, that is, the thicknesses of the coupling agent, can be made uniform by comparing the surfaces 12a and 12b of the glass film 12. In addition, the thicknesses of the coupling agent layers 14 and 16 can be set to the above-mentioned thicknesses (1.0 μm or less). Alternatively, the coupling agent can be supplied by applying the coupling agent to the surfaces 12a and 12b of the glass film 12 by at least one of spraying, applying the coupling agent by spin coating, and printing such as gravure printing or screen printing.
[0040] In S16, a formation step is performed in which, for example, the glass film 12 to which the coupling agent has been supplied is heated and cooled to form coupling agent layers 14, 16 on the surfaces 12a, 12b of the glass film 12. Heating and cooling conditions are appropriately set depending on the coupling agent. For example, in the case of a silane coupling agent, the glass film 12 is heated to a temperature in the range of 80°C to 130°C, and is held for a predetermined period (for example, about 1 to 60 minutes), and then the glass film 12 is cooled to room temperature.
[0041] The glass film 12 on which the coupling agent layer is formed warps due to the membrane stress caused by the difference in the thermal expansion coefficient between the glass film 12 and the coupling agent layer. In particular, the warp is significant when the coupling agent layer is formed only on one side of the glass film 12. In addition, in FIG. 4, the coupling agent layers 14 and 16 are arranged on both surfaces 12a and 12b of the glass film 12, so that membrane stress acts on both surfaces and these stresses are offset. Therefore, the warp of the glass film 12 is suppressed. However, there are cases where the stresses are not completely offset. In that case, as shown in FIG. 4, the warp occurs so that the coupling agent layer 16 side is convex, or the warp may occur so that the coupling agent layer 14 side is convex.
[0042] Because the glass film 12 is thin, even slight uneven distribution of the coupling agent when it is supplied causes warping of the glass film 12. When the glass film 12 has a rectangular shape, warping is likely to occur in the longitudinal direction.
[0043] As shown in FIG. 4, in a state where the glass film 12 is warped, the glass film 12 is placed on a horizontal surface HS such as a workbench so that it is curved upward. When the warp occurs so that the coupling agent layer 14 side is convex, the glass film 12 is placed upside down from FIG. 4 so that the coupling agent layer 14 side is upward. It is preferable that the relationship H / L between the length L of both ends of the glass film 12 when viewed from the direction in which the curved surface of the glass film 12 extends (perpendicular to the paper surface of FIG. 4) and the height H from the horizontal surface HS to the highest position of the glass film 12 is 0.05 or less, because the glass film 12 is stable on the horizontal surface HS. It is preferable that H / L is 0.03 or less. In FIG. 4, both ends of the glass film 12 are in contact with the horizontal surface HS over the entire length, but the glass film 12 may be twisted by heating and cooling. In this case, at least one of both ends of the glass film 12 does not contact the horizontal surface HS over the entire length. In this case, the length L is the maximum length of both end edges of the glass film 12 when the glass film 12 is stably stationary on the horizontal plane HS.
[0044] For example, when a coupling agent layer is formed on only one side of the glass film 12, H / L is 0.2 to 0.3. On the other hand, when a coupling agent layer is formed on both sides of the glass film 12, H / L is 0.05 or less.
[0045] Returning to Fig. 2, in S18, an adhesion step is performed in which the resin member 18 is adhered to the surface 12a of the glass film 12 via the coupling agent layer 14 and the adhesive layer 17. The adhesive layer 17 included in the glass laminate 20 may be thicker or thinner than the coupling agent layer 14. In this manner, the glass laminate 20 is produced.
[0046] Next, in S20, a resin disposing step is performed in which a molding resin 21 is disposed on the surface 12b of the glass film 12 with a coupling agent layer 16 sandwiched therebetween. Specifically, an ultraviolet-curable resin material is disposed on the coupling agent layer 16. The molding resin 21 is difficult to bond to the glass film 12. In the glass laminate 20, by disposing the coupling agent layer 16 on the glass film 12, the glass film 12 and the molding resin 21 can be firmly bonded to each other.
[0047] Moreover, the coupling agent layers 14 and 16 suppress warping of the glass film 12, thereby suppressing curvature of the molding resin 21.
[0048] In S22, a molding step is performed to form the uneven portion 22 for nanoimprint molding on the surface 21a of the molding resin 21. Specifically, as shown in Fig. 5, a metallic master die 50 is brought into contact with the surface 21a of the molding resin 21 and the two are pressed together to transfer the shape of the master die 50 to the molding resin 21, thereby forming the uneven portion 22 on the surface 21a. Thereafter, the molding resin 21 is irradiated with ultraviolet light, thereby forming unevenness in the molding resin 21 corresponding to the master die 50. In this way, the molded package 10 is produced.
[0049] 6, in the fabricated molded package 10, the uneven portion 22 on the surface 21a of the molding resin 21 is pressed against a workpiece 200 such as a panel for a head-up display and cured by heating or light irradiation, thereby transferring the shape of the uneven portion 22 to the workpiece 200. This allows the shape of, for example, a diffraction grating to be formed in the workpiece 200. Specifically, the workpiece 200 is composed of a main body 201 and an ultraviolet-curable resin 202, and the ultraviolet-curable resin 202 is pressed against the surface 21a of the molding resin 21, and then the shape of the uneven portion 22 is transferred to the workpiece 200 by light irradiation.
[0050] As shown in FIG. 7, after the workpiece 200 is molded, the mold package 10 is released from the workpiece 200. In the mold package 10, the glass film 12 is made of a thin film. Therefore, by bending the mold package 10, the mold package 10 can be easily peeled off from the workpiece 200. The workpiece 200 can be used as a product as it is, but may also be attached to another object (e.g., a plate, etc.) to make a product. After the workpiece 200 is attached to another object, the workpiece 200 may be pressed against the surface 21a of the molding resin 21.
[0051] The glass film 12 is less susceptible to deformation due to the environment, such as temperature and humidity, compared to the resin member 18. In the molded package 10, the molding resin 21 can be disposed on the glass film 12. With this configuration, the molding resin 21 can suppress the influence of deformation of the glass laminate 20 due to the environment, compared to a configuration in which the molding resin 21 is disposed on the resin member 18. This allows the molded package 10 to be used for nanoimprinting of shapes that require an accuracy of 10 micrometers, such as a diffraction grating for a head-up display.
[0052] Although specific examples of the present invention have been described above in detail, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and variations of the specific examples exemplified above. The technical elements described in this specification or drawings exhibit technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or drawings can achieve multiple objectives simultaneously, and achieving one of these objectives is itself technically useful. [Explanation of symbols]
[0053] 10: mold package, 12: glass film, 14, 16: coupling agent layer, 17: adhesive layer, 18: resin member, 20: glass laminate, 21: molding resin, 22: uneven portion
Claims
1. A supplying step of supplying a coupling agent to both sides of the glass film; a forming step of heating the glass film to which the coupling agent has been supplied to form a coupling agent layer on both surfaces of the glass film; and adhering a light-transmittable resin member to one surface of the glass film via the coupling agent layer.
2. The method for manufacturing a glass laminate according to claim 1 , wherein the supplying step includes a step of immersing both surfaces of the glass film in the coupling agent in a liquid state.
3. The resin member is in a film form, The method for producing a glass laminate according to claim 1 , wherein in the bonding step, the resin member is bonded to the one surface of the glass film via the coupling agent layer and an adhesive layer.
4. 3. The method for manufacturing a glass laminate according to claim 1, wherein after the forming step and before the bonding step, a maximum length of the glass film is L, and a height of the glass film from a horizontal plane in a state in which the glass film is placed on the horizontal plane is H, H / L is 0.05 or less.
5. A supplying step of supplying a coupling agent to both sides of the glass film; a forming step of heating the glass film to which the coupling agent has been supplied to form a coupling agent layer on both surfaces of the glass film; a bonding step of bonding a resin member capable of transmitting light to one surface of the glass film via the coupling agent layer; a resin disposing step of disposing the light-curable molding resin on the other surface of the glass film via the coupling agent layer; a molding process in which the molding resin is hardened by irradiating the molding resin with the light while the molding resin and a molding die are in intimate contact with each other, thereby forming a molding concave-convex portion.
6. The method for producing a molded package according to claim 5 , wherein the resin member is in the form of a film.
7. The method for producing a molded package according to claim 5 or 6, wherein in the bonding step, the resin member is bonded to the one surface of the glass film via the coupling agent layer and an adhesive layer.
8. Glass film and A coupling agent layer disposed on both sides of the glass film; An adhesive layer disposed on one surface of the glass film via the coupling material layer; a light-transmitting resin member bonded to the one surface of the glass film via the coupling agent layer and the adhesive layer.
9. The glass laminate according to claim 8 , wherein the glass film has a thickness of 10 μm or more and 300 μm or less.
10. A glass laminate including a glass film, coupling agent layers disposed on both sides of the glass film, and a light-transmitting resin member bonded to one side of the glass film via the coupling agent layer; a resin mold layer disposed on the other surface of the glass film of the glass laminate, the resin mold layer having a molding concave-convex portion on a surface opposite to the glass laminate.
11. The molded package according to claim 10 , further comprising an adhesive layer disposed on the one surface of the glass film via the coupling material layer.
Citation Information
Patent Citations
Method for manufacturing flexible mold, base material for flexible mold, and method for manufacturing optical component
JP2020049656A