WO2023228683A1 - エッジカバー付きガラス板 - Google Patents

エッジカバー付きガラス板 Download PDF

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Publication number
WO2023228683A1
WO2023228683A1 PCT/JP2023/016900 JP2023016900W WO2023228683A1 WO 2023228683 A1 WO2023228683 A1 WO 2023228683A1 JP 2023016900 W JP2023016900 W JP 2023016900W WO 2023228683 A1 WO2023228683 A1 WO 2023228683A1
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WO
WIPO (PCT)
Prior art keywords
glass plate
glass
resin layer
edge
edge cover
Prior art date
Application number
PCT/JP2023/016900
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English (en)
French (fr)
Japanese (ja)
Inventor
由莉佳 三宅
Original Assignee
Ａｇｃ株式会社
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Publication date
Application filed by Ａｇｃ株式会社 filed Critical Ａｇｃ株式会社
Priority to JP2024522991A priority Critical patent/JPWO2023228683A1/ja
Publication of WO2023228683A1 publication Critical patent/WO2023228683A1/ja

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    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/88—Edge-protecting devices for door leaves

Definitions

  • the present invention relates to a glass plate with an edge cover.
  • Patent Document 1 discloses an edge protector with high impact resistance.
  • the edge protector described in Patent Document 1 has insufficient long-term adhesive durability due to its shape.
  • the edge protector described in Patent Document 1 has lower durability against impacts acting diagonally on the end face than against impacts acting perpendicularly to the end face, and is therefore insufficient. That is the problem.
  • the present invention provides a glass plate with an edge cover that has durability against impacts acting on the end face or ridge of the glass plate from various directions and has durability against sunlight.
  • the present invention includes a glass plate and a resin layer bonded to an end face of the glass plate via a primer layer, and the resin layer covers the entire end face of the glass plate and the glass plate. is arranged so as to cover the entirety of both ridges of the glass plate adjacent to the end face of the glass plate and a part of both main surfaces of the glass plate adjacent to the ridge, in the thickness direction of the glass plate,
  • the thickness (d1) from the main surface of the glass plate to the surface of the resin layer is 0.1 mm or more and 0.9 mm or less, and both main surfaces of the glass plate have a width covered by the resin layer.
  • (d2) is 0.1 mm or more and 1.1 mm or less
  • the thickness (d3) from the end face of the glass plate to the surface of the resin layer in the direction perpendicular to the end face of the glass plate is 0.1 mm. or more and 0.9 mm or less, and the resin layer does not peel off from the glass plate for 15 days in an accelerated weathering test using a xenon arc lamp in accordance with JIS K 5600-7-7:2008.
  • a glass plate with an edge cover is provided.
  • FIG. 1A shows a glass plate with an edge cover having an R-chamfered edge.
  • FIG. 1B is a glass plate with an edge cover having a C-chamfered edge.
  • FIG. 1C is a glass plate with an edge cover having a chamfered edge.
  • FIG. 2A is a longitudinal cross-sectional view of a laminated glass using a glass plate with an edge cover according to an embodiment of the present invention.
  • FIG. 2B is a longitudinal cross-sectional view of a modified example of a laminated glass using a glass plate with an edge cover according to an embodiment of the present invention.
  • FIG. 2C is a longitudinal cross-sectional view of another modified example of laminated glass using a glass plate with an edge cover according to an embodiment of the present invention.
  • FIG. 1A shows a glass plate with an edge cover having an R-chamfered edge.
  • FIG. 1B is a glass plate with an edge cover having a C-chamfered edge.
  • FIG. 1C is a glass
  • FIG. 3 is a longitudinal cross-sectional view of double-glazed glass using a glass plate with an edge cover according to an embodiment of the present invention.
  • FIG. 4 is a front view of a glass unit using a glass plate with an edge cover according to an embodiment of the present invention.
  • FIG. 5A is a diagram illustrating a pendulum impact test, and is a front view showing a horizontal collision.
  • FIG. 5B is a diagram illustrating a pendulum type impact test, and is a front view showing a 45° collision.
  • FIG. 5C is a plan view illustrating a pendulum impact test.
  • the glass plate 10 with an edge cover includes a single glass plate 1 and a resin layer 3 bonded to an end surface 1B of the glass plate 1 via a primer layer 2.
  • the glass plate 1 includes opposing main surfaces 1A, 1A, an end surface 1B, and both ridges 1C, 1C adjacent to the end surface 1B.
  • the resin layer 3 covers the entire end surface 1B of the glass plate 1, the entire edges 1C and 1C of the glass plate 1 adjacent to the edge surface 1B of the glass plate 1, and the glass plate 1 adjacent to both edges 1C and 1C. is arranged so as to partially cover both main surfaces 1A, 1A.
  • the glass plate 1 acts in a direction perpendicular to the end surface 1B.
  • the durability against impact on the end face 1B or the ridge 1C it is possible to improve the durability against impact on the end face 1B or the ridge 1C that acts in a direction other than perpendicular to the end face 1B, such as in an oblique direction. With this structure, cracking and chipping of the glass plate 1 can be prevented.
  • the resin layer 3 could not be peeled off from the glass plate 1 for 15 days and had durability against sunlight. Furthermore, since the structure makes it difficult for water to enter between the glass plate 1 and the resin layer 3, the resin layer 3 does not peel off from the glass plate 1 even if the glass plate 10 with an edge cover is exposed to water or hot water. It becomes difficult to do. With this structure, the glass plate 10 with an edge cover can easily ensure water resistance and hot water resistance.
  • the ridge portion 1C of the glass plate 1 may be chamfered. By chamfering, the edge strength of the glass plate 1 can be improved.
  • the chamfer shape is not limited to a specific shape. Examples of chamfering shapes include R chamfering, which rounds the edge 1C, C chamfering, which cuts the edge 1C diagonally, and light-edging, which finely adjusts the edge 1C.
  • FIG. 1A shows a glass plate 10 with an edge cover, in which the glass plate 1 has an R-chamfered ridge portion 1C between each of the main surfaces 1A and the end surfaces 1B.
  • FIG. 1B shows an edge-covered glass plate 10-2 having a glass plate 1-2 in which each of the edges 1-2C is C-chamfered.
  • the glass plate 10-2 with an edge cover is the same as the glass plate 10 with an edge cover shown in FIG. 1A except for each edge 1-2C.
  • FIG. 1C shows an edge-covered glass plate 10-3 having a glass plate 1-3 in which each of the edges 1-3C is thread-chamfered.
  • the edge-covered glass plate 10-3 is the same as the edge-covered glass plate 10 of FIG. 1A except for each edge 1-3C.
  • the thickness d1 from the main surface 1A of the glass plate 1 to the surface of the resin layer 3 in the thickness direction of the glass plate 1 is preferably 0.1 mm or more, more preferably 0.15 mm or more, and further preferably 0.2 mm or more. preferable. Moreover, d1 is preferably 0.9 mm or less, more preferably 0.7 mm or less, and even more preferably 0.5 mm or less. In other words, the thickness d1 from the main surface 1A of the glass plate 1 to the surface of the resin layer 3 in the thickness direction of the glass plate 1 is preferably 0.1 mm to 0.9 mm, and preferably 0.15 mm to 0.9 mm. It is more preferably 0.7 mm, and even more preferably 0.2 mm to 0.5 mm.
  • d1 measures the thickness d4 in the thickness direction of the glass plate 10 with an edge cover in the area where both main surfaces of the glass plate 1 are covered with the resin layer 3, and the thickness d5 in the thickness direction of the glass plate 1.
  • d1 (d4-d5)/2...(1)
  • d4 is the area within 0.1 mm from the boundary between the area where both main surfaces of the glass plate 1 are covered with the resin layer 3 and the area where both main surfaces of the glass plate 1 are not covered with the resin layer 3.
  • the thickness of the glass plate 10 with an edge cover in the plate thickness direction can be measured three times, avoiding areas at a distance, and the average value can be used.
  • the glass plate 1 can ensure durability against impact on the end face 1B or the ridge 1C that acts diagonally with respect to the end face 1B, so that the glass plate 1 can be prevented from cracking or chipping. It can be prevented.
  • the glass plate 10 with an edge cover may be exposed to sunlight outdoors and the temperature may rise and the resin layer 3 may be deformed, or the glass plate 10 may be placed under high humidity. Even when there is a possibility that the resin layer 3 may expand or when there is a possibility that moisture may enter the bonding surface between the glass plate 1 and the resin layer 3, the adhesiveness of the resin layer 3 is maintained. Therefore, the edge-covered glass plate 10 has long-term adhesive durability even when used outdoors. Moreover, if d1 is 0.9 mm or less, the resin layer 3 is not noticeable, so that the glass plate 10 with an edge cover is provided with an excellent appearance.
  • d1 is 0.9 mm or less
  • the interlayer film and the glass plate Air enters the interface with 1, making it difficult for bubbles to occur.
  • the width d2 of both main surfaces 1A of the glass plate 1 covered with the resin layer 3 in the direction perpendicular to the end surface 1B of the glass plate 1 is preferably 0.1 mm or more, more preferably 0.15 mm or more, and 0.1 mm or more. More preferably, it is 2 mm or more. Moreover, d2 is preferably 1.1 mm or less, more preferably 0.9 mm or less, and even more preferably 0.7 mm or less.
  • the width d2 of both main surfaces 1A of the glass plate 1 covered with the resin layer 3 in the direction perpendicular to the end surface 1B of the glass plate 1 is preferably 0.1 mm to 1.1 mm; .15 mm to 0.9 mm is more preferable, and even more preferably 0.2 mm to 0.7 mm.
  • the resin layer 3 can cover and protect the entire ridge 1C. This improves the durability of the glass plate 1 against impacts to the end surface 1B or the ridge 1C that are applied from various directions. Furthermore, if d2 is 0.1 mm or more, it becomes more difficult for water to enter between the glass plate 1 and the resin layer 3, so that the glass plate 10 with an edge cover can improve water resistance and hot water resistance.
  • the resin layer 3 is not noticeable on the main surface 1A of the glass plate 1, so the glass plate 10 with an edge cover has an excellent appearance. Furthermore, if d2 is 1.1 mm or less, in the case of laminated glass in which two glass plates 10 with edge covers are laminated with an interlayer interposed therebetween, the interlayer film and the glass plate 1 will be separated due to the influence of the resin layer 3. This allows air to enter the interface, making it difficult for bubbles to form.
  • the chamfer width d6 of the ridge portion 1C may be 0 mm, 0.1 mm or more, or 0.3 mm or more. Further, d6 may be 2 mm or less, 1.5 mm or less, or 1.0 mm or less. In other words, the chamfer width d6 of the ridge portion 1C may be 0 mm to 2 mm, 0.1 mm to 1.5 mm, or 0.3 mm to 1.0 mm.
  • d6 is 0.1 mm or more, the durability of the glass plate 1 against impact to the end surface 1B or the ridge 1C is further improved.
  • the production efficiency of the glass plate 10 with an edge cover can be increased and manufacturing costs can be reduced. Further, even if the ridge portion 1C of the glass plate 1 is covered with the resin layer 3, the resin layer 3 is not noticeable, so the glass plate 10 with an edge cover has an excellent appearance.
  • the distance d7 from the end surface 1B where the main surface 1A of the glass plate 1 is covered with the resin layer 3 in the direction perpendicular to the end surface 1B of the glass plate 1 is greater than d6 and may be 0.1 mm or more, It may be 0.2 mm or more, or 0.4 mm or more. Further, d7 may be 3.0 mm or less, 2.0 mm or less, or 1.5 mm or less. In other words, the distance d7 from the end surface 1B where the main surface 1A of the glass plate 1 is covered with the resin layer 3 in the direction perpendicular to the end surface 1B of the glass plate 1 is greater than d6, and is 0.1 mm to 3.0 mm. It may be 0.2 mm to 2.0 mm, or 0.4 mm to 1.5 mm.
  • the thickness d3 from the end surface 1B of the glass plate 1 to the surface of the resin layer 3 in the direction perpendicular to the end surface 1B of the glass plate 1 is preferably 0.1 mm or more, more preferably 0.15 mm or more, and 0.2 mm or more. is even more preferable. Moreover, d3 is preferably 0.9 mm or less, more preferably 0.7 mm or less, and even more preferably 0.5 mm or less. In other words, the thickness d3 from the end surface 1B of the glass plate 1 to the surface of the resin layer 3 in the direction perpendicular to the end surface 1B of the glass plate 1 is preferably 0.1 mm to 0.9 mm, and preferably 0.15 mm. It is more preferably from 0.7 mm to 0.7 mm, and even more preferably from 0.2 mm to 0.5 mm.
  • the glass plate 1 can improve its durability against impact against the end face 1B or the ridge 1C.
  • d3 is 0.9 mm or less, even if the glass plate 10 with an edge cover is exposed to sunlight outdoors and the temperature rises or is placed under high humidity, the glass plate with an edge cover 10, the adhesiveness of the resin layer 3 is maintained. Therefore, even if the glass plate 10 with an edge cover is used outdoors, it has long-term adhesive durability. Moreover, if d3 is 0.9 mm or less, the resin layer 3 is not noticeable, so the glass plate 10 with an edge cover has an excellent appearance.
  • the ratio of the thickness d1 from the main surface 1A of the glass plate 1 to the surface of the resin layer 3 (d1/d3) is preferably 0.5 or more, more preferably 0.7 or more, and even more preferably 0.9 or more. .
  • d1/d3 is preferably 2.0 or less, more preferably 1.4 or less, and even more preferably 1.1 or less.
  • the ratio of the thickness d1 (d1/d3) from the main surface 1A of the glass plate 1 to the surface of the resin layer 3 in the thickness direction is preferably 0.5 to 2.0, and preferably 0.7 to 1. It is more preferably 4, and even more preferably 0.9 to 1.1.
  • the glass plate 10 with an edge cover exhibits durability against impacts to the end surface 1B or the ridge 1C that are applied from various directions.
  • d1/d3 is 2.0 or less, the process of applying the resin layer 3 is relatively easy, so that the glass plate 10 with an edge cover can reduce manufacturing costs.
  • the primer layer 2 improves the adhesion between the glass plate 1 and the resin layer 3.
  • the primer layer 2 is applied to at least the end surface 1B of the glass plate 1. Similar to the resin layer 3, the primer layer 2 covers the entire end surface 1B of the glass plate 1, the entire edges 1C of the glass plate 1 adjacent to the end surface 1B of the glass plate 1, the edges 1C, It is preferable that the glass plate 1 is disposed so as to partially cover both main surfaces 1A and 1A of the glass plate 1 adjacent to the glass plate 1C. Further, it is preferable that 90% or more of the area of the resin layer 3 is in contact with the primer layer 2, more preferably that 95% or more of the area is in contact with the primer layer 2, and 100% of the area is in contact with the primer layer 2. More preferably, it is in contact with.
  • the glass plate 10 with an edge cover conforms to JIS K 5600-7-7:2008 "General test methods for paints - Part 7: Long-term durability of paint films - Section 7: Accelerated weather resistance and accelerated light resistance (xenon lamp method)"
  • An accelerated weathering test is conducted for 15 days under the condition of 180 ⁇ 10% [W/m 2 ] according to the cycle
  • a continuous water spraying regulations according to preferably does not peel off from the glass plate 1.
  • the resin layer 3 covering the end surface 1B of the glass plate 1 does not peel off from the glass plate 1 when accelerated weather resistance is performed for 90 days. This shows that the edge-covered glass plate 10 has strong durability against ultraviolet rays from sunlight.
  • “not peeling off” refers to not only that the entire resin layer 3 does not peel off from the glass plate 1, but also that partial peeling of the resin layer 3 from the glass plate 1 is not visually confirmed. means.
  • the glass plate 10 with edge cover conforms to JIS K 5600-6-2: 2016 "General test methods for paints - Part 6: Chemical properties of paint films - Section 2: Liquid resistance (water immersion method)".
  • the resin layer 3 covering the end surface 1B of the glass plate 1 remained from the glass plate 1 even after immersion. It is preferable not to peel off. This shows that the edge covered glass plate 10 has strong water resistance and hot water resistance.
  • the glass plate 10 with an edge cover is such that the resin layer 3 covering the end surface 1B of the glass plate 1 does not peel off from the glass plate 1 even after a constant temperature and humidity test in which the glass plate 10 is exposed to an environment with a temperature of 80° C. and a humidity of 95% RH for 75 days. It is preferable.
  • This constant temperature and humidity test can be said to be a more severe test than the humidity resistance test for laminated glass according to JIS R 3205:2015, since it requires high temperature and a long exposure period.
  • the edge cover-equipped glass plate 10 was tested after a first cooling/heating cycle test in which the temperature was cycled from 0°C to 80°C once a day in an environment with a humidity of 95% RH for 90 days. It is preferable that the resin layer 3 covering 1B does not peel off from the glass plate 1. This shows that the edge covered glass plate 10 has strong cold and heat durability under high humidity.
  • this first cooling/heating cycle test the temperature was raised from room temperature to 80°C over 2 hours, held for 12 hours, lowered to 0°C over 4 hours, held for 4 hours, and then returned to room temperature for 2 hours. The temperature rises over time.
  • the edge cover-equipped glass plate 10 was tested after a second cooling/heating cycle test in which the temperature was cycled from -20°C to 80°C once a day in an environment with a humidity of 95% RH for 90 days. It is more preferable that the resin layer 3 covering 1B does not peel off from the glass plate 1. In this case, it can be seen that the glass plate 10 with an edge cover has even stronger cold and heat durability under high humidity.
  • the temperature was raised from room temperature to 80°C in 2 hours, held for 12 hours, lowered to -20°C in 4 hours, held for 4 hours, and returned to room temperature. The temperature is raised in 2 hours.
  • This second heating and cooling cycle test is a test based on JIS K 5600-7-4: 1999 "General test methods for paints - Part 7: Long-term durability of paint films - Section 4: Wet resistance to cooling and heating cycling". In comparison, the number of cycles and minimum temperature are the same, but the maximum temperature is higher, making it a more severe test.
  • the area around the end surface 1B of the glass plate 1 is degreased by wiping off the oil on the surface using paper or sponge soaked in an organic solvent such as ethanol.
  • the area around the end surface 1B of the glass plate 1 is primed by wiping it with paper or sponge soaked in a solution containing a silane coupling agent, and then a resin material is applied and cured. In this way, the primer layer 2 and the resin layer 3 are formed, and the glass plate 10 with an edge cover is manufactured.
  • the resin material can be applied immediately without drying time.
  • by increasing the output of the dispenser it is possible to prevent bubbles from forming in the resin layer 3 and to make the surface of the resin layer 3 less likely to have a wavy shape.
  • Examples of the solution for primer treatment include a solution containing 1% by mass of a silane coupling agent and using an alcohol solvent.
  • Examples of the silane coupling agent include those containing a vinyl group, epoxy group, styryl group, acrylic group, methacrylic group, amino group, isocyanurate group, ureido group, mercapto group, isocyanate group, or acid anhydride. Can be mentioned.
  • the silane coupling agent preferably contains an acrylic group or a methacrylic group from the viewpoint of impact resistance, water resistance, and long-term adhesive durability. Examples of the silane coupling agent containing an acrylic group include 3-acryloxypropyltrimethoxysilane.
  • silane coupling agent containing a methacryl group examples include 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropylmethyldiethoxysilane, and 3-methacryloxypropyltriethoxysilane. It will be done.
  • the resin material examples include those containing synthetic resins such as epoxy, urethane, acrylic, and silicone resins.
  • the resin material is particularly preferably a UV curable resin. If the resin is UV curable, the resin can be cured immediately after being applied, resulting in excellent productivity and cost. A UV absorbing material may be added to improve UV cut performance. Further, the resin material preferably has a viscosity at 25° C. of 1 Pa.s or more and 30 Pa.s or less, more preferably 1 Pa.s or more and 20 Pa.s or less, and 5 Pa.s or more and 15 Pa.s or less. It is even more preferable that there be.
  • the shape of the resin layer 3 can be maintained when the resin material is applied to the glass plate 1. If the viscosity is 30 Pa ⁇ s or less, the resin material can be easily dispensed from the needle of the dispenser when applying the resin material to the glass plate 1. In addition, bubbles contained in the resin material are easily released.
  • each of the organic functional groups has an organic functional group that undergoes a polymerization reaction with the agent.
  • the resin material contained in the resin layer 3 is an acrylic UV curable resin
  • the silane coupling agent contained in the primer layer 2 has an acrylic group or a methacrylic group, a polymerization reaction will occur.
  • the glass plate 1 is, for example, a plate of inorganic glass such as soda lime glass, aluminosilicate glass, aluminoborosilicate glass, or alkali-free glass.
  • the glass plate 1 may be colored, and may be transparent or opaque.
  • the glass plate 1 may be subjected to a strengthening treatment such as a physical strengthening treatment or a chemical strengthening treatment. When the strengthening treatment is performed, the strength of the main surface 1A of the glass plate 1 can be improved. Further, the glass plate 1 may be wired glass having fireproof performance such as wired glass, or glass having design properties such as patterned glass.
  • a functional film may be formed on the main surface 1A of the glass plate 1 to improve functionality.
  • the functional film include a low-emissivity film (Low-E film), a low-reflection film, an antifogging film, an antifouling film, and a water-repellent film.
  • the end surface roughness Ra of the end surface 1B and the ridge 1C of the glass plate 1 is preferably 0.5 ⁇ m or less, more preferably 0.3 ⁇ m or less. If the end surface roughness Ra is 0.5 ⁇ m or less, even if the resin layer 3 has a high viscosity, the unevenness of the surface of the glass plate 1 and the resin layer 3 will fit well, and the resin layer will fit into the unevenness of the surface of the glass plate 1. 3 becomes easier to penetrate, improving adhesive durability.
  • the end surface roughness Ra can be determined from the arithmetic mean roughness defined in JIS B 0601:2013.
  • the end surface roughness Ra of the end surface 1B and ridge portion 1C of the glass plate 1 can be reduced by polishing.
  • the glass plate 1 is first polished with a whetstone with a large average abrasive grain size and high polishing efficiency, then polished with a whetstone with a smaller abrasive grain size, and finally, the required finished surface (roughly polished) is polished. Polished using a whetstone with abrasive grain size appropriate for finishing, polishing, polishing, etc.).
  • #200 average abrasive grain diameter 100 ⁇ m
  • #500 average abrasive grain diameter 45 ⁇ m
  • #800 average abrasive grain diameter 30 ⁇ m
  • the thickness d5 of the glass plate 1 is not particularly limited, but is preferably 1 mm or more, may be 2 mm or more, or may be 3 mm or more. Moreover, d5 is preferably 15 mm or less, may be 12 mm or less, or may be 10 mm or less. If the thickness of the glass plate 1 is 1 mm or more, the deflection of the glass plate 1 can be reduced. If the thickness of the glass plate 1 is 15 mm or less, the total thickness and weight of the glass plate 10 with an edge cover can be reduced. In other words, the thickness d5 of the glass plate 1 is preferably 1 mm to 15 mm, may be 2 mm to 12 mm, or may be 3 mm to 10 mm.
  • the area of the glass plate 1 is not particularly limited, but is preferably 0.04 m 2 or more, may be 0.09 m 2 or more, may be 0.5 m 2 or more, or may be 1 m 2 or more. . Further, the upper limit of the area of the glass plate 1 is not particularly limited, but is preferably 10 m 2 or less, may be 8 m 2 or less, or may be 6 m 2 or less. If the area of the glass plate 1 is 0.04 m 2 or more, it is suitable for use as window glass for buildings or residences, or as outdoor handrails or fences. If the area of the glass plate 1 is 10 m 2 or less, handling of the glass plate 1 becomes easy.
  • the area of the glass plate 1 is preferably 0.04 m 2 to 10 m 2 , may be 0.09 m 2 to 8 m 2 , may be 0.5 m 2 to 8 m 2 , and may be 1 m 2 to 6 m 2 It may be 2 .
  • the glass plate 1 is not limited to a single plate, but may also be laminated glass made by bonding multiple glass plates together with an interlayer film interposed therebetween, or double-glazed glass in which multiple glass plates are spaced apart via a spacer. good.
  • a laminated glass 20 can be produced by using two single glass plates 10 with edge covers and bonding them together with an interlayer film 22 interposed therebetween.
  • the resin layer 3 can be adhered to the glass plate 1 in a process prior to the bonding process, it is possible to protect the edges of the glass plate 1 at an early stage. Protection at an early stage prevents the glass plate 1 from colliding with parts when it is moved on a conveyor, or from causing the glass plate 1 to collide with surrounding objects while the worker is working. Also, the end face and ridge of the glass plate 1 can be protected.
  • resin materials used for the intermediate film 22 include ethylene-vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), polyurethane, polyvinyl chloride, ionomer resin, cellulose diacetate, Examples include cellulose triacetate.
  • EVA ethylene-vinyl acetate copolymer
  • PVB polyvinyl butyral
  • polyurethane polyvinyl chloride
  • ionomer resin cellulose diacetate
  • cellulose diacetate examples include cellulose triacetate.
  • the intermediate film 22 may have a single layer, or may have two or more layers.
  • the total thickness of the intermediate film 22 is preferably 0.4 mm or more, more preferably 0.5 mm or more. Further, the total thickness of the intermediate film 22 is preferably 3.0 mm or less, more preferably 2.5 mm or less. If the thickness of the interlayer film 22 is 0.7 mm or more, the impact resistance of the laminated glass 20 will be improved. If the thickness of the interlayer film 22 is 3.0 mm or less, the scenery seen through the laminated glass 20 can be seen without distortion, and the cost of the laminated glass 20 can be reduced. In other words, the total thickness of the intermediate film 22 is preferably 0.4 mm to 3.0 mm, more preferably 0.5 mm to 2.5 mm.
  • the laminated glass 20 may include three or more glass plates 10 with edge covers. Moreover, the laminated glass 20 may be a combination of the glass plate 10 with an edge cover and the glass plate without an edge cover.
  • the laminated glass 20-B in FIG. 2B is a modification of the laminated glass 20 in FIG. 2A, and has a functional member 24 inside the interlayer film 22.
  • the functional member 24 includes, for example, an antenna, a solar cell, a light control film, an LED, or a heat-generating film.
  • the laminated glass 20-B can be used as a module such as antenna glass, solar cell glass, light control glass, LED built-in glass, or heat generating glass.
  • the thickness (d3) from the end surface 1B of the glass plate to the surface of the resin layer 3 of the edge cover and the thickness (d8) of the interlayer film 22 satisfy formula (2). It is preferable. 2 ⁇ d3 ⁇ d8...(2)
  • formula (2) the entire end surface of the laminated glass 20-B is protected by the resin layer 3. Therefore, the laminated glass 20-B can be provided with dust-proofing properties, moisture-proofing properties, and gas barrier properties against sulfide gas and the like for the functional member 24. Furthermore, UV light that enters the functional member 24 from the end surface of the laminated glass 20-B can be blocked.
  • the laminated glass 20-B may include three or more glass plates 10 with edge covers. Further, the laminated glass 20-B may be a glass plate without an edge cover other than the glass plate in contact with the interlayer film 24 having the functional member 24.
  • the laminated glass 20-C in FIG. 2C is one of the modifications of the laminated glass 20-B in FIG. 2B. After laminating two glass plates 1 through an interlayer film 22 having a functional member 24 and then bonding a resin layer 3 through a primer layer 2, a laminated glass 20-C having an edge cover is obtained. It can be made. In this case, unlike the laminated glass 20 and the laminated glass 20-B, the end face can be protected even after laminated glass.
  • the resin layer 3 covers the entire end surface of the laminated glass, the entire ridges 1C, 1C located on the outside of the laminated glass, and the glass adjacent to the ridges 1C, 1C located on the outside of the laminated glass.
  • the main surfaces 1A and 1A of the plate 1 are arranged so as to partially cover them.
  • the primer layer 2 improves the adhesion between the glass plate 1 and the resin layer 3.
  • the primer layer 2 is applied to the end surfaces 1B of all the glass plates 1 included in the laminated glass 20-C.
  • the primer layer 2 covers the entire end surface 1B of all the glass plates 1, the entire ridges 1C, 1C located on the outside of the laminated glass, and the ridges 1C, 1C located on the outside of the laminated glass, of the glass plate 1 adjacent to the 1C. It is preferable that the main surfaces 1A, 1A are disposed so as to partially cover them.
  • the end face of the intermediate film 22 may or may not be coated with a primer layer. Further, the primer layer applied to the intermediate film 22 may be of a different type from the primer layer applied to the glass plate 1.
  • 85% or more of the area of the resin layer 3 is in contact with the primer layer 2, more preferably that 90% or more of the area is in contact with the primer layer 2, and 95% of the area is in contact with the primer layer 2. More preferably, it is in contact with.
  • the laminated glass 20-C can be provided with dust-proofing properties, moisture-proofing properties, and gas barrier properties against sulfide gas and the like for the functional member 24. Further, UV light that enters the functional member 24 from the end surface of the laminated glass 20-C can be cut.
  • the laminated glass 20-C may include three or more glass plates.
  • the laminated glasses 20, 20-B, and 20-C with the edge cover can be used as window glass for outdoor buildings or houses.
  • double-glazed glass 30 As a double-glazed glass with an edge cover, two single-paned glass plates 10 with edge covers are used as shown in FIG. It is preferable to use double-glazed glass 30 and arrange the double-glazed glass 30 at intervals with spacers 35 interposed therebetween.
  • the resin layer 3 can be adhered to the glass plate 1 in a step before the spacing step, it is possible to protect the edges of the glass plate 1 at an early stage. By protecting the glass plate 1 at an early stage, even if the glass plate 1 collides with a component while being moved on a conveyor, or if a worker collides with a surrounding object while working, the glass plate 1 will be protected. Edges and edges can be protected.
  • the spacer 35 of the double-glazed glass 30 is arranged along the side edges of the inner main surfaces of the two glass plates 10 with edge covers, and the peripheral edge of the spacer 35 is sealed by the primary sealant 31 and the secondary sealant 32.
  • a hollow layer 33 is formed between the two edge-covered glass plates 10 that are sealed.
  • the primary sealing material 31 is arranged between the spacer 35 and the inner main surfaces of the two glass plates 10 with edge covers. Further, a concave groove is defined by the surface of the spacer 35 opposite to the hollow layer 33 and the main surfaces of the two glass plates 10 with edge covers, and two grooves are formed in this groove so as to be in contact with the primary sealing material 31.
  • sealing material 32 is filled.
  • the hollow layer 33 is shielded from the outside air by the primary sealing material 31 and the secondary sealing material 32.
  • the spacer 35 has a hollow structure having a cavity 37, and a plurality of ventilation holes 36 are provided at predetermined intervals on the surface of the spacer 35 facing the hollow layer 33. Thereby, the cavity 37 of the spacer 35 and the hollow layer 33 are communicated with each other. Further, since the cavity 37 of the spacer 35 is filled with a desiccant 38 such as granular zeolite, the gas in the hollow layer 33 is dried by the desiccant 38 through the ventilation holes 36.
  • a desiccant 38 such as granular zeolite
  • the spacer 35 may be a metal spacer mainly made of aluminum, or may be a resin spacer. In the case of a resin spacer, its surface may be coated with an aluminum sheet. When using a resin spacer, the primary sealing material 31 and the secondary sealing material 32 may not need to be used.
  • the primary sealing material 31 is preferably one based on butyl rubber or polyisobutylene that is not crosslinked, and containing filler such as carbon black for coloring and reinforcement. Note that since the primary sealant 31 does not solidify and only has adhesive properties, the adhesion between the spacer 35 and the glass plate 10 with an edge cover is ensured by the secondary sealant 32.
  • the secondary sealing material 32 examples include polysulfide (manufactured by Yokohama Rubber Co., Ltd.: registered trademark: Hamatite SM9000), silicone (manufactured by Dow Corning Toray Co., Ltd.: trade name: SE936), urethane (manufactured by Sanyu Rec Co., Ltd.: registered trademark).
  • the material is based on a curable elastomer such as SANYU IGS205) and has been appropriately modified to exhibit adhesiveness to glass.
  • the double-glazed glass 30 may include three or more edge-covered glass plates 10 or may include a laminated glass 20. Moreover, the double-glazed glass 30 may be a combination of the glass plate 10 with an edge cover and the glass plate without an edge cover.
  • the double-glazed glass 30 may have a functional member 24 in the hollow layer of the glass plate 1, as shown in FIG.
  • the functional member 24 includes, for example, an antenna, a solar cell, a light control film, an LED, or a heat-generating film.
  • the double-glazed glass 30 can be used as a module such as antenna glass, solar cell glass, light control glass, LED built-in glass, or heat generating glass.
  • the edge cover has excellent long-term impact resistance and adhesive properties
  • the double-glazed glass 30 having the edge cover can be used as window glass for outdoor buildings or houses.
  • a glass unit 40 can be formed by connecting a plurality of glass plates 10 with edge covers via a sealing material 42.
  • the sealing material 42 is arranged between the resin layers 3 of each of the plurality of glass plates 10 with edge covers.
  • a vertical frame for supporting the edge-covered glass plate 10 may be present in the sealing material 42 .
  • an upper frame and a lower frame for supporting the glass unit 40 may be present above and below the glass unit 40.
  • sealant 42 for example, a silicone-based, polyisobutylene-based, modified silicone-based, polysulfide-based, acrylic urethane-based, polyurethane-based, or acrylic-based sealant is used as described in JIS A 5758:2016 "Sealing materials for construction". From the viewpoint of long-term durability and water resistance, silicone sealants are preferred.
  • the glass unit 40 having the edge cover can be used as an outdoor handrail or fence.
  • Pendulum impact test As shown in FIGS. 5A and 5B, a 0.5 kg steel prismatic pendulum 54 suspended from a 1000 mm long octopus string 52 is attached to a glass plate. A pendulum impact test was conducted in which the product was swung once against the edge.
  • FIG. 5A is a front view showing a horizontal collision in which the prismatic pendulum 54 collides with the main surface of the glass plate in the horizontal direction (perpendicular to the end surface of the glass plate).
  • FIG. 5B is a front view showing a 45° collision in which the prismatic pendulum 54 collides with the main surface of the glass plate in a 45° direction (oblique direction with respect to the end surface of the glass plate).
  • FIG. 5C is a plan view when the glass plate 1 and the prismatic pendulum 54 collide in each test shown in FIGS. 5A and 5B.
  • Table 2 shows the results of horizontal impact on the glass plates of Examples 1 and 2 shown in Table 1
  • Table 3 shows the results of 45° impact on the glass plates of Examples 3 and 4 shown in Table 1. Note that Examples 2 and 4 are examples, and Examples 1 and 3 are comparative examples.
  • Example 1 A prismatic pendulum 54 was horizontally collided with a glass plate without an edge cover.
  • the glass plate of Example 1 is soda lime glass with a thickness of 5 mm, dimensions of 1000 mm x 100 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.7 ⁇ m.
  • Example 2 A prismatic pendulum 54 was caused to collide horizontally against a glass plate with an edge cover.
  • the glass plate of Example 2 is soda lime glass with a thickness of 6 mm, dimensions of 1000 mm x 100 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.7 ⁇ m.
  • the primer layer is a silane coupling agent having a methacrylic group (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-503).
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • the resin layer covers the entire end face of the glass plate, the entire ridges of the glass plate adjacent to the end face, and a portion of both main surfaces of the glass plate adjacent to the ridges.
  • d1 shown in FIG. 1A was 0.3 mm
  • d2 was 0.2 mm
  • d3 was 0.3 mm.
  • Example 3 A prismatic pendulum 54 was made to collide at 45° against a glass plate without an edge cover.
  • the glass plate of Example 3 is soda lime glass with a thickness of 5 mm, dimensions of 1000 mm x 100 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.7 ⁇ m.
  • Example 4 A prismatic pendulum 54 was made to collide at 45° against a glass plate with an edge cover.
  • the glass plate of Example 4 is soda lime glass with a thickness of 6 mm, dimensions of 1000 mm x 100 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.7 ⁇ m.
  • the primer layer is a silane coupling agent having a methacrylic group (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-503).
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • the resin layer covers the entire end face of the glass plate, the entire ridges of the glass plate adjacent to the end face, and a portion of both main surfaces of the glass plate adjacent to the ridges.
  • d1 shown in FIG. 1A was 0.3 mm
  • d2 was 0.2 mm
  • d3 was 0.3 mm.
  • the glass plate without the edge cover of Example 1 did not crack or chip at a drop height of 200 mm, but cracked or chipped at a drop height of 250 mm.
  • the glass plate with an edge cover of Example 2 cracks and chips did not occur at a drop height of 700 mm, but cracks and chips occurred from a drop height of 800 mm. Therefore, it was found that the glass plate with the edge cover of Example 2 had a higher fall height at which cracking occurred than the glass plate of Example 1 without the edge cover, and had excellent impact resistance in horizontal collision.
  • the glass plate without the edge cover of Example 3 cracked or chipped from a fall height of 100 mm.
  • the glass plate with an edge cover of Example 4 no cracks or chips occurred at a drop height of 100 mm, but cracks or chips occurred from a drop height of 200 mm. Therefore, it was found that the glass plate with an edge cover in Example 4 has a higher fall height at which cracks and chips occur than the glass plate without an edge cover in Example 3, and has excellent impact resistance in a 45° collision. Ta.
  • Example 5 In Example 5, three glass plates with edge covers were subjected to a hot water immersion test.
  • the glass plate of Example 5 is soda lime glass with a thickness of 6 mm, dimensions of 50 mm x 30 mm, a chamfered shape with an R chamfer, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.3 ⁇ m.
  • the primer layer is a silane coupling agent having a methacrylic group (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-503).
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • the resin layer covers the entire end face of the glass plate, the entire ridges of the glass plate adjacent to the end face, and a portion of both main surfaces of the glass plate adjacent to the ridges.
  • d1 shown in FIG. 1A was 0.3 mm
  • d2 was 0.2 mm
  • d3 was 0.3 mm.
  • Example 6 In Example 6, a hot water immersion test was conducted on six glass plates with edge covers (manufactured by Takematsu Kogyo Co., Ltd., trade name "Edge Protector”).
  • the glass plate of Example 6 is soda lime glass with a thickness of 10 mm, dimensions of 300 mm x 300 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.3 ⁇ m.
  • the primer layer is a silane coupling agent (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-403) whose organic functional group is an epoxy group.
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • PPF12N UV-curable acrylic resin
  • the resin layer covers the end faces and ridges of the glass plate, but is arranged so as not to cover the main surface of the glass plate adjacent to the ridges, as shown in FIG. 1A.
  • d1 was 0 mm
  • d2 was 0 mm
  • d3 was 0.5 to 0.8 mm.
  • the three glass plates with edge covers of Example 5 showed no peeling of the resin layer even after 10 days of immersion.
  • the resin layer peeled off during 10 days of immersion.
  • d3 of Examples 5 and 6 were both within the range of 0.1 to 0.9 mm, but d1 of Example 5 was within the range of 0.1 to 0.9 mm, and d2 was within the range of 0.1 to 0.9 mm. While in the range of 1 to 1.1 mm, d1 and d2 of Example 6 differed in that they were 0 mm. Further, in the primer layer of Example 5, a silane coupling agent having a methacrylic group, which is the same organic functional group as the resin layer, was used.
  • the constant temperature and humidity test absorbs less water into the resin layer than the hot water immersion test, from the perspective of water resistance, it can be said that it is a test that is less likely to cause peeling than the hot water immersion test.
  • Example 7 In Example 7, a constant temperature and humidity test was conducted on three glass plates with edge covers.
  • the glass plate of Example 7 is soda lime glass with a thickness of 6 mm, dimensions of 50 x 30 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.3 ⁇ m.
  • the primer layer is a silane coupling agent (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-503) whose organic functional group is a methacrylic group.
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • the resin layer covers the entire end face of the glass plate, the entire ridges of the glass plate adjacent to the end face, and a portion of both main surfaces of the glass plate adjacent to the ridges.
  • d1 shown in FIG. 1A was 0.3 mm
  • d2 was 0.2 mm
  • d3 was 0.3 mm.
  • Example 8 In Example 8, a constant temperature and humidity test was conducted on three glass plates with edge covers.
  • the glass plate of Example 8 is soda lime glass with a thickness of 6 mm, dimensions of 50 x 30 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.3 ⁇ m.
  • the primer layer is a silane coupling agent (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-503) whose organic functional group is a methacrylic group.
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • the resin layer covers the entire end face of the glass plate, the entire ridges of the glass plate adjacent to the end face, and a portion of both main surfaces of the glass plate adjacent to the ridges.
  • d1 shown in FIG. 1A was 1.0 mm
  • d2 was 0.2 mm
  • d3 was 1.0 mm.
  • Example 9 In Example 9, a constant temperature and humidity test was conducted on three glass plates with edge covers.
  • the glass plate of Example 9 is soda lime glass with a thickness of 6 mm, dimensions of 50 x 30 mm, a chamfered shape of an R chamfered shape, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.7 ⁇ m.
  • the primer layer is a silane coupling agent (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-503) whose organic functional group is a methacrylic group.
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • the resin layer covers the entire end face of the glass plate, the entire ridges of the glass plate adjacent to the end face, and a portion of both main surfaces of the glass plate adjacent to the ridges.
  • d1 shown in FIG. 1A was 0.3 mm
  • d2 was 0.2 mm
  • d3 was 0.3 mm.
  • Example 10 In Example 10, a constant temperature and humidity test was conducted on four glass plates with edge covers.
  • the glass plate of Example 10 is soda lime glass with a thickness of 6 mm, dimensions of 50 x 30 mm, a chamfered shape with an R chamfer, a chamfer width d6 of 0.7 mm, and an end surface roughness of 0.3 ⁇ m.
  • the primer layer is a silane coupling agent (manufactured by Shin-Etsu Silicone Co., Ltd.: KBM-403) whose organic functional group is an epoxy group.
  • the resin layer is a UV-curable acrylic resin (PTF12N, manufactured by Goo Kagaku Kogyo Co., Ltd.).
  • the resin layer covers the entire end face of the glass plate, the entire ridges of the glass plate adjacent to the end face, and a portion of both main surfaces of the glass plate adjacent to the ridges.
  • d1 shown in FIG. 1A was 0.3 mm
  • d2 was 0.2 mm
  • d3 was 0.3 mm.
  • the primer layers of Examples 7 and 8 were both silane coupling agents whose organic functional groups were methacrylic groups, but while d1 and d3 of Example 7 were in the range of 0.1 to 0.9 mm, The difference was that d1 and d3 of No. 8 were 1.0 mm.
  • d1 was within the range of 0.1 to 0.9 mm
  • d2 was within the range of 0.1 to 1.1 mm
  • d3 was within the range of 0.1 to 0.9 mm.
  • the primer layer of Example 7 is a silane coupling agent that has a methacrylic group, which is the same organic functional group as the resin layer
  • the primer layer of Example 10 has a methacrylic group, which is the same organic functional group as the resin layer.
  • the silane coupling agent does not have an epoxy group and is a silane coupling agent that has an epoxy group.
  • Example 9 was under the same conditions as Example 7 except for the end surface roughness of the glass plate, it is considered that no peeling occurred as in Example 7.
  • Cooling and heating cycle test In the first cooling and heating cycle test, the glass plate with an edge cover was subjected to one cycle per day from a temperature of 0°C and humidity of 95% to a temperature of 80°C and humidity of 95% RH for 90 days. Table 6 shows the results of visually checking whether the resin layer covering the end surface of the glass plate peeled off from the glass plate after the test.
  • the temperature In the first thermal cycle test, the temperature was raised from room temperature to 80°C in 2 hours, held for 12 hours, lowered to 0°C in 4 hours, held for 4 hours, and then returned to room temperature for 2 hours. The temperature was raised over time.
  • the first thermal cycle test can be said to be a test in which peeling is more likely to occur than the constant temperature and humidity test from the viewpoint of adhesion of the resin layer, since dew condensation and expansion and contraction of the resin layer occur according to temperature changes.
  • Example 12 In the first thermal cycle test, three glass plates with edge covers under the same conditions as Example 7, which had good results in the constant temperature and humidity test, were used in Example 11, and three glass plates with edge covers under the same conditions as Example 9 were used.
  • the plate was designated as Example 12 and was the subject of this test.
  • Example 11 As a result of the first thermal cycle test, in Example 11, no peeling occurred in all of the glass plates with edge covers after 90 days of exposure. This result suggests that when a glass plate with an edge cover is installed outdoors, it maintains adhesion for 10 years even when subjected to temperature changes. On the other hand, in Example 12, 1/3 of the glass plates with edge covers peeled off after 77 days of exposure on one of the three glass plates with edge covers, but peeling occurred on the remaining two glass plates with edge covers after 90 days of exposure. did not occur.
  • the glass plate with an edge cover was cycled once a day in an environment ranging from -20°C and 95% humidity to 80°C and 95% RH for 90 days.
  • Table 7 shows the results of visually checking whether the resin layer covering the end surface of the glass plate peeled off from the glass plate.
  • the temperature was raised from room temperature to 80°C in 2 hours, held for 12 hours, lowered to -20°C in 4 hours, held for 4 hours, and returned to room temperature. The temperature was raised in 2 hours.
  • This second heating and cooling cycle test is a test based on JIS K 5600-7-4: 1999 "General test methods for paints - Part 7: Long-term durability of paint films - Section 4: Wet resistance to cooling and heating cycling". In comparison, the number of cycles and minimum temperature are the same, but the maximum temperature is higher, making it a more severe test.
  • Example 13 In the second thermal cycle test, three glass plates with edge covers were tested in Example 13 under the same conditions as Examples 7 and 11, and three glass plates with edge covers were tested in Example 14, Example 9 and Three glass plates with edge covers under the same conditions as Example 12 were used as Example 15, and four glass plates with edge covers under the same conditions as Example 10 were used as Example 16, and were subjected to this test.
  • Examples 13 and 14 differed in that d1 and d3 of Example 13 were in the range of 0.1 to 0.9 mm, while d1 and d3 of Example 14 were 1.0 mm.
  • d1 is within the range of 0.1 to 0.9 mm
  • d2 is within the range of 0.1 to 1.1 mm
  • d3 is within the range of 0.1 to 0.9 mm.
  • the end surface roughness was the same.
  • the primer layer of Example 15 is a silane coupling agent that has a methacrylic group, which is the same organic functional group as the resin layer
  • the primer layer of Example 16 has a methacrylic group, which is the same organic functional group as the resin layer.
  • the first difference is that it is a silane coupling agent with an epoxy group.
  • Example 17 it is thought that peeling occurred most quickly because it did not have a primer layer.
  • Example 12 exhibited peeling in the first thermal cycle test, which is thought to be due to the influence of variations in sample quality.
  • Example 7 In the accelerated weathering test, three edge-covered glass plates under the same conditions as Example 7 were tested in Example 18, three edge-covered glass plates were tested in Example 19 under the same conditions as Example 8, and three glass plates under the same conditions as Example 9 were tested. In this test, a glass plate with an edge cover of Targeted.
  • d2 is within the range of 0.1 to 1.1 mm, the end surface roughness is 0.5 ⁇ m or less, and the primer layer is made of a silane coupling agent whose organic functional group is a methacrylic group. there were.
  • d1 and d3 of Example 18 were in the range of 0.1 to 0.9 mm, while d1 and d3 of Example 19 were 1.0 mm. It is thought that when d1 and d3 of the glass plate with an edge cover are 0.9 mm or less, peeling is less likely to occur and long-term durability against sunlight is improved.
  • Example 20 was under the same conditions as Example 18 except for the end surface roughness of the glass plate, it is considered that no peeling occurred as in Example 18.
  • Example 21 has a primer layer, d1 is in the range of 0.1 to 0.9 mm, d2 is in the range of 0.1 to 1.1 mm, and d3 is in the range of 0.1 to 0.9 mm.
  • d1 is in the range of 0.1 to 0.9 mm
  • d2 is in the range of 0.1 to 1.1 mm
  • d3 is in the range of 0.1 to 0.9 mm.
  • Example 22 it is thought that peeling occurred most quickly because it did not have a primer layer.
  • the glass plate with edge cover has a primer layer, d1 is in the range of 0.1 to 0.9 mm, and d2 is in the range of 0.1 to 1.1 mm. If d3 is within the range of 0.1 to 0.9 mm, long-term durability against sunlight will improve, and peeling will not occur even after 15 days of exposure in the accelerated weathering test. Furthermore, it is thought that long-term durability against sunlight can be further improved by having the primer layer and the resin layer having the same functional group.

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JPH0740379A (ja) * 1993-07-28 1995-02-10 Asahi Glass Co Ltd 枠体付き板状体の製造方法
JPH1095636A (ja) * 1996-09-17 1998-04-14 Nippon Sheet Glass Co Ltd 耐衝撃ガラス
JP2002201049A (ja) * 2000-12-27 2002-07-16 Asahi Glass Co Ltd 合わせガラス
WO2005000762A1 (ja) * 2003-06-30 2005-01-06 Nippon Sheet Glass Company, Limited エッジ部保護部材及び該保護部材を備えるガラスパネル、並びにガラスパネルのエッジ部保護方法
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JP2016532625A (ja) * 2013-08-05 2016-10-20 コーニング インコーポレイテッド ポリマー縁端被覆ガラス品及びこれを作製及び使用するための方法

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