JPS61191546A - Double layered glass and its preparation - Google Patents

Abstract

PURPOSE:To prepare a double layered glass which is hardly deteriorated having supe rior durability and appearance by adhering a single plate glass coated with a weather resistant primer to both surfaces of a specified inside frames with a pressure sensitive sealing material and filling an elastic sealing material to the outside thereof. CONSTITUTION:A strip of masking tape 8 is pasted along the external periphery of a single plate glass 1 which has been freed of dusts and oil film, etc. on the surface by washing, and an opaque weather resistant primer 2 prepd. by adding a ther- moplastic elastomer, silane coupling agent, pigment and solvent to a weather resistant urethane oligomer is applied to an exposed surface 9 formed to the outside thereof with a fixed breadth. After removing the tape 8, the primer 2 is dried and bonded firmly. On one hand, a space 14 is formed by adhering the single plate glass 1 after positioning to both surfaces of the inside frame 3 filled with a filler 10 in the inside opening slit grooves 11 on the inside surface and sticking pressure sensitive tape 12 for preventing bulging of the filler annularly to the external periphery of protruding stripes 13. A pastable sealing material 4 is packed between the single glass plates 1 at the external periphery of the inside frame 3 to adhere the inside frame 3 to the glass 1 integrally and the elastic sealing material 5 is packed to its outside.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to double-glazed glass used, for example, as window glass for heat insulation and soundproofing, and a method for manufacturing the same.

[Conventional technology]

Conventionally, an inner frame was interposed between the single panes of glass.
Double glazing is known in which a space is formed between the single panes of glass, but such conventional double glazing involves bonding the inner frame directly to the single pane of glass with adhesive, and then applying an elastic seal between the single panes of glass. material was injected.

[Problems to be solved by the invention]

For this reason, in the conventional example, the deterioration of the sealing material is accelerated by light rays, especially ultraviolet rays, that pass through the single glass, and the problem is that the single glass and the inner frame peel off, making it unusable. In addition, the internal frame, adhesive, and elastic sealant were completely visible through the single-pane glass, giving it a poor appearance. Furthermore, when injecting an elastic sealant between the inner frame and the single glass, the elastic sealant or adhesive sealant does not fit well with the surface of the single glass. The adhesion and adhesion between the elastic sealant and the single glass were weak due to air bubbles being repelled on the surface, resulting in insufficient moisture permeability at the adhesive interface.

[Means for Solving the Problem 1] The specific invention of the present invention is to apply a colored weather-resistant primer 2 to the inner surface of the end of the single glass 1, and to apply a colored weather-resistant primer 2 between the facing single glass 1 at a position slightly recessed from the end. An inner frame 3 is interposed between the inner frame 3 and the surface of the inner frame 3 is adhered to the weather-resistant primer 2 portion of the single glass 1 with an adhesive sealant 4, and an elastic sealant 5 is filled between the single glass plates 1 at the outer periphery of the inner frame 3. The present invention relates to double-glazed glass characterized by comprising: In addition, the combined invention of the present invention is to apply a colored weather-resistant primer 2 to the inner surface of the edge of the single glass 1, to dry the weather-resistant primer 2 sufficiently, and to apply the colored weather-resistant primer 2 to the inner surface of the edge of the single glass 1, and to apply the colored weather-resistant primer 2 to the inner surface of the edge. An inner frame 3 is interposed between the glass plates 1, an adhesive sealant 4 is injected between the inner frame 3 and the portion of the single glass plate 1 coated with the weather-resistant primer 2, and an elastic sealant 5 is injected between the single glass plates 1. The present invention relates to a method for manufacturing double-glazed glass, characterized in that the glass is filled with. [Function] The specific invention of the present invention provides weather-resistant primer 2 with the above structure.
It blocks light, especially ultraviolet rays, protects the adhesive sealant 4 and the elastic sealant 5 and prevents them from deteriorating, and is also weather resistant and greatly improves the bonding interface, extending the lifespan of double-glazed glass. can. Furthermore, the weather-resistant primer 2 can hide the inner frame 3, adhesive sealant 4, elastic sealant 5, etc. inside. Further, in the combined invention of the present invention, since the weather-resistant primer 2 is sufficiently dried after being applied with the above structure, the solvent in the weather-resistant primer 2 is completely removed, and the weather-resistant primer 2 is applied after the double glazing is assembled. Since the solvent does not volatilize from 2, the heat insulation and sound insulation properties of the double N glass do not deteriorate, and the adhesive sealant 4 and the elastic sealant 5 do not become soft or deteriorate. The adhesion interface has good conformability, allows light to pass through 4 reliably, and allows the single glass 1 and the inner frame 3 to be firmly bonded.

【Example】

Double-glazed glass A is manufactured by the following steps. When the At glass plate 1 is carried in, as shown in FIG. 1, the single glass plate 1 is cleaned by a cleaning device 6 to remove dust, oil and fat film, etc. from the surface. Although FIG. 2 shows a method in which the single glass plate 1 is cleaned by spouting a cleaning liquid such as water, detergent, or solvent from the shower nozzle 7, other methods of cleaning may be used. The single glass plate 1 is transparent and may be made of glass or synthetic resin such as acrylic resin or polycarbonate. After the cleaning of the single glass 1 is completed, a layer as shown in Fig. 3 (
As shown in a) and (b), a masking tape 8 is pasted in an annular manner along the outer periphery of the single glass 1, and between the edge of the masking tape 8 and the outer periphery of the deck glass 1 there is a fixed width of exposed surface of the single glass 1. 9 is formed. And this single glass 1
A weather-resistant primer 2 is applied to the exposed surface 9 of the glass, and then the masking tape 8 is peeled off from the inner surface of the single glass 1, and the weather-resistant primer 2 is sufficiently dried. In this way, as shown in FIG. 4(,)(b), the weather-resistant primer 2 having a constant width and having a straight green color is neatly fixed to the outer circumference of the inner surface of the single glass 1. The weather-resistant primer 2 is made by adding a pigment and a solvent to a weather-resistant urethane oligomer, a weather-resistant thermoplastic elastomer, and a silane coupling agent, and is opaque and colored black, white, silver, gold, etc. It is compatible with the elastic sealant 5 and the adhesive sealant 4 and serves as an adhesion aid. Furthermore, the weather-resistant primer 2 has a low viscosity in an undried state, and when applied to the single glass plate 1, it is applied smoothly without being repelled. After application, the solvent in the weather-resistant primer 2 will be completely volatilized by sufficiently drying it, and after drying, the solvent will no longer evaporate from the weather-resistant primer 2 (if the solvent continues to volatilize, the insulating glass Δ Solvent vapor leaks into the internal space 14, which not only impairs the heat insulation and sound insulation properties of the multilayer lath A, but also tends to cause the adhesive sealant 4 and elastic sealant 5 to become opaque. On the other hand, the inner frame 3 is made of metal such as aluminum or iron, or made of glass, and is formed by assembling hollow members having a U-shaped cross section with a lip into a rectangular frame shape. It has been transported to a separate process. The interior is filled with a desiccant 10, and a slit groove 11 is opened on the inner peripheral surface to allow moisture to pass through but prevent the desiccant 10 from spilling out. Furthermore, as shown in FIG. 5, protrusions 13 are provided on the inner periphery of both surfaces of the inner frame 3 to prevent the adhesive sealant 4 from protruding from the outer periphery of the ridges 13. Adhesive tape 1
2 is pasted in a ring shape. The adhesive tape 12 is made of butyl rubber and has low moisture permeability (preferably non-moisture permeability), is adhesive at room temperature, and has a thickness greater than the protrusions 13. By pasting the adhesive tape 12 in such a way that it comes into contact with the outer peripheral side surface 17 of the protrusion 13, it can be positioned and easily and neatly pasted. After this, a veneer lath 1 is placed on both sides of this inner frame 3,
As shown in FIG. 6, the inner frame 3 and the single glass 1 are aligned so that the adhesive tape 12 and the inner frame 3 do not protrude from the weather-resistant primer 2 and become visible through the single glass 1 (for example, , It is preferable to align the inner peripheral edge of the weather-resistant primer 2 and the inner peripheral surface of the inner frame 3. ), the adhesive tape 12 on the surface of the inner frame 3 is a single plate. A space 14 is formed between the single panes of glass 1. In this way, a gap 18 is formed between the weather-resistant primer 2 and the surface of the inner frame 3, the inner circumference of which is closed with the adhesive tape 12. An adhesive type sealant 4 is filled to bond the inner frame 3 and both vehicle glass plates 1 together, and an elastic sealant 5 is further filled between the single glass plates 1 on the outer periphery of the adhesive type sealant 4, as shown in FIG. A double-glazed glass A is manufactured. The adhesive sealing material 4 is a heat-melting type of butyl rubber, which is heated and melted and then injected and cured.The elastic sealing material 5 is made of urethane resin, silicone resin, polysulfide, or the like. Although this adhesive sealant 4 etc. has high viscosity,
Weather-resistant primer 2 is also made of synthetic resin, so it is more compatible with weather-resistant primer 2 than with veneer lath 1 (
It is difficult to be repelled, and it is difficult to get air bubbles involved during injection, and it spreads smoothly and adheres to the weather-resistant primer 2. After the space 14 between the single panes of glass 1 is filled with a gas having low thermal conductivity or the pressure is reduced to a vacuum, the double glazing A is subjected to a product inspection, and after curing, it is transported out. However, since the adhesive tape 12 is positioned on the inner circumferential side by the protruding stripes 13, it is not only positioned and easily applied when pasting (the adhesive tape 12 may deform over time, Even if it stretches, it will not protrude to the inner circumference side of the inner frame 3 (particularly when the inside of the multi-layer lath A is being depressurized, the adhesive tape 12 is likely to be drawn in), and the veneer lath 1
The adhesive tape 12 that protrudes through is not visible, and the deformation of the adhesive tape 12 results in a double/1! This prevents the appearance of the lath A from becoming dirty (and also prevents the airtightness inside the multi-layered lath A from being impaired. Also, the adhesive sealant 4, the elastic sealant 5, and the adhesive tape 12 etc. are protected by a weather-resistant primer 2, and since the weather-resistant primer 2 is also weather-resistant, it is unlikely to be deteriorated by ultraviolet rays, etc., and prevents peeling and moisture permeation phenomena at the adhesive interface of the single glass 1. It is possible to prevent this and extend the life of the double-glazed lath A. The double-glazed glass A manufactured in this way may be used as a window glass by being attached to the surface of the window frame 16 as shown in FIG. Alternatively, although not shown, it may be fitted into a window frame such as an aluminum sash and used as a window glass.Furthermore, it can be used for purposes other than window glass.Note that the X portion in Figure 9 is omitted. However, the details are fjII1
As shown in the figure. In the above embodiment, the inner frame 3 is interposed between the veneers 1 facing each other at a position slightly recessed from the end of the lath 1 of the veneer, and the protrusion 13 is provided on the inner peripheral side of the surface of the inner frame 3. Adhesive tape 12 is attached to the outer periphery of the inner frame surface so that the green protrudes and comes into contact with the outer circumferential side surface 17 of the protrusion 13, and this adhesive tape 12 is attached to the inner surface of the veneer lath 1, Since the adhesive type sealant 4 is filled between the inner frame 3 on the outer circumferential side of the adhesive tape 12 and the veneer lath 1, 1FJ118 is filled, so before filling the adhesive type sealant 4, the veneer lath 1 is placed in the inner frame. 3
The adhesive sealant 4 is temporarily fixed in advance, making it easy to fill with the adhesive sealant 4, and in addition, the adhesive tape 12 secures the adhesive sealant 4 so that the adhesive sealant 4 does not protrude to the inside of the inner frame 3. Furthermore, when applying the adhesive tape 12 to the inner frame 3, the edge of the adhesive tape 12 is placed in contact with the outer circumferential side surface 17 of the protrusion 13, so that the position to apply the adhesive tape 12 is determined easily and quickly. Furthermore, the adhesive tape 12 is stopped by protrusions 13 so that it cannot move inward during the work, and even if the adhesive tape 12 stretches or loses its elasticity due to aging or temperature rise, it will not stick. The tape 12 protrudes inward from the weather-resistant primer 2 and the veneer lath 1
It has the characteristic that it cannot be seen through it. Further, in the above embodiment, there is a small gap 15 between the inner surface of the single glass 1 and the surface of the inner frame 3 on the inner peripheral side of the adhesive tape 12.
However, as in the embodiment shown in FIG. 8, a spacer 19 made of a synthetic resin molded product may be attached to the protrusion 13 portion of the inner frame 3 to close the small gap 15. The above manufacturing process can be automated using a polar coordinate or orthogonal coordinate robot, and in particular, the use of a robot in primer application can omit the complicated masking tape attachment/detachment process.

【Effect of the invention】

As described above, the specific invention of the present invention is to apply a colored weather-resistant primer to the inner surface of the end of the single glass, interpose an inner frame between the facing single glass at a position slightly recessed from the end, and is adhered to the above-mentioned weather-resistant primer portion of the single-pane glass using an adhesive sealant, and an elastic sealant is filled between the single-pane glasses at the outer periphery of the inner frame.
The weather-resistant primer blocks light (especially ultraviolet rays), protects the adhesive sealant, and prevents it from deteriorating.Furthermore, it is also weather-resistant, so it does not easily deteriorate, and prevents peeling at the adhesive interface of single-pane glass in double-glazed glass. It has the advantage of preventing moisture permeation and prolonging the life of the multilayer lath. Furthermore, the weather-resistant primer can be used to hide the internal frame, adhesive sealant, elastic sealant, etc., thereby improving the appearance. In addition, the combined invention of the present invention is that, as stated above (the weather-resistant primer is sufficiently dried after application, the solvent in the weather-resistant primer is completely removed, and the weather-resistant primer is removed after the double-glazing is assembled). It has the advantage that the solvent does not volatilize, which reduces the heat and sound insulation properties of the double-glazed glass, and does not cause the sealant to become laminated.Also, the weather-resistant primer applied to the inner surface of the single-pane glass is a synthetic material. Because it is a resin-based material, it is compatible with adhesive sealants and elastic sealants, and is difficult to repel adhesive sealants (and is easy to peck), so adhesive sealants can be filled without trapping air bubbles, and can be used to reliably and firmly seal single-paned glass. It has the advantage that the inner frame and the inner frame can be bonded together.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. fj & 2,
3(a)(b), #tJ4(,)(b), FIG. 5, FIG. 6, and WII7 are explanatory diagrams showing the same manufacturing process as above, and FIG. 8 shows the other side of the present invention. The partially broken sectional view shown in FIG. 9 is a sectional view of a window glass using the same multilayer lath as described above, where 1 is a single lath, 2 is a weather-resistant primer, 3 is an inner frame,
4 is an adhesive sealant, and 5 is an elastic sealant. Agent Patent Attorney Ishi 1) 艮 7th l Figure 2 Figure 5 Figure 8

Claims (2)

[Claims] (1) Apply a colored weather-resistant primer to the inner surface of the edge of the single glass, interpose an inner frame between the facing single glass at a position slightly recessed from the edge, and seal the inner frame surface with an adhesive sealant. A double-glazed glass, characterized in that it is made by adhering to the above-mentioned weather-resistant primer portion of a plate glass and filling an elastic sealing material between the single panes of glass at the outer periphery of the inner frame. (2) Apply a colored weather-resistant primer to the inner surface of the edge of the single glass, then dry the weather-resistant primer thoroughly, and insert an inner frame between the facing single glass at a position slightly recessed from the edge. A method for manufacturing double-glazed glass, which comprises injecting an adhesive sealant between the inner frame and the portion of the single glass pane coated with a weather-resistant primer, and further filling the space between the single glass panes with an elastic sealant.