WO2020083939A1 - Procede d'obtention d'un vitrage isolant - Google Patents
Procede d'obtention d'un vitrage isolant Download PDFInfo
- Publication number
- WO2020083939A1 WO2020083939A1 PCT/EP2019/078766 EP2019078766W WO2020083939A1 WO 2020083939 A1 WO2020083939 A1 WO 2020083939A1 EP 2019078766 W EP2019078766 W EP 2019078766W WO 2020083939 A1 WO2020083939 A1 WO 2020083939A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spacer
- glass
- glass sheets
- faces
- glazing
- Prior art date
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Classifications
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- 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
- E06B3/663—Elements for spacing panes
- E06B3/66309—Section members positioned at the edges of the glazing unit
- E06B3/66333—Section members positioned at the edges of the glazing unit of unusual substances, e.g. wood or other fibrous materials, glass or other transparent materials
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- 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
- E06B3/673—Assembling the units
- E06B3/67326—Assembling spacer elements with the panes
- E06B3/6733—Assembling spacer elements with the panes by applying, e.g. extruding, a ribbon of hardenable material on or between the panes
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- 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
- E06B3/663—Elements for spacing panes
- E06B3/66309—Section members positioned at the edges of the glazing unit
- E06B3/66333—Section members positioned at the edges of the glazing unit of unusual substances, e.g. wood or other fibrous materials, glass or other transparent materials
- E06B2003/66338—Section members positioned at the edges of the glazing unit of unusual substances, e.g. wood or other fibrous materials, glass or other transparent materials of glass
-
- 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
- E06B3/663—Elements for spacing panes
- E06B3/66309—Section members positioned at the edges of the glazing unit
- E06B2003/66385—Section members positioned at the edges of the glazing unit with special shapes
Definitions
- the invention relates to the field of insulating glazing intended to be incorporated into openings of enclosures or climatic furniture, in particular refrigerated.
- These insulating glazing units comprise at least two sheets of glass held parallel spaced apart by means of at least one transparent glass spacer bonded to the periphery of said glass sheets so as to provide an intermediate space filled with gas.
- the invention will be more particularly described with regard to an application of refrigerated furniture, without however being limited thereto.
- the glazing of the invention can be used in all building applications, exterior glazing, interior glazing, partition, etc.
- spacers there are those made of synthetic material, organic material and those made of glass.
- the present invention relates exclusively to glass spacers.
- a climatic chamber is more particularly intended to constitute a positive cold cabinet or a negative cold cabinet in which are exposed refrigerated or respectively frozen products, such as food products or drinks, or any other products requiring a conservation in the cold, for example pharmaceuticals or flowers.
- these openings are made according to a design close to windows for the building: double or triple glazing is framed over its entire periphery by means of a frame made of profiles, generally made of anodized aluminum for reasons of aesthetic, resistance to aging and ease of manufacture.
- the frame is generally glued directly to the periphery and to the external faces of the glazing; it contributes to the rigidity of the structure and makes it possible to hide from view the intermediate means (spacers) arranged at the periphery of the glazing and separating the glass sheets.
- Such a structural frame significantly reduces the clear view through the glazing. It was then proposed, to improve the clear view through the glazing, to manufacture insulating glazing with transparent spacers at least at their vertical sides, further generating a visual perception of transparent surface continuity on the whole refrigerated display cases placed side by side.
- the transparent spacers are made of glass and come from a water jet cutting making it possible to guarantee a surface for association with perfectly parallel glass sheets.
- the rough faces, due to the jet, are arranged at the edge of the glazing so as to allow the glass sheets to be combined by the perfectly smooth faces of the spacers.
- This method however requires cutting the spacers from glass sheets having exactly the thickness corresponding to the distance between the glass sheets in the insulating glazing.
- the water jet cutting method also makes it possible to produce only spacers having a thickness (the dimension extending in a plane parallel to the general surfaces of glass sheets in the mounted position of the spacer) of at least 12 mm. The desired clearness and transparency effect are therefore reduced.
- Application WO 2017/157636 proposes insulating glazings in which the transparent glass spacers come from a cutting step, for example by tracing-breaking, creating “rough” or rough faces, and are assembled to the glass sheets in arranging these rough faces against the faces of the glass sheets, then by causing a glue to flow from the external junction between these two faces.
- the manufacturing process for insulating glazing is thus facilitated, in particular by the possibility of cutting the spacers from sheets.
- glass of standard thicknesses This process also makes it possible to gain even more in plain sight and transparency, since on the one hand the spacers can have a reduced thickness and on the other hand the faces of the spacer forming the edge of the glazing are perfectly smooth and therefore provide a perfect transparency effect when the glazing is observed in perspective.
- the adhesive used can in particular be crosslinkable under ultraviolet radiation.
- the glazings thus obtained could be sensitive to aging, in particular in a humid environment.
- cracks may appear over time in the adhesive.
- these cracks can cause a reduction in the sealing of the opening.
- the invention therefore aims to overcome this drawback by proposing an improved method, making it possible to obtain insulating glazing units having better resistance to aging, and consequently better maintenance of the seal in the long term.
- the subject of the invention is a process for obtaining an insulating glazing comprising first and second glass sheets held parallel spaced apart using at least one transparent glass spacer bonded to the periphery of said sheets of glass so as to provide an intermediate space filled with gas, said method comprising the following steps:
- said spacer being substantially parallelepipedal and comprising at least two rough faces opposite one another, and two smooth faces opposite one another, then
- the invention also relates to an insulating glazing capable of being obtained by this method, said glazing comprising a first and a second sheet of glass held parallel spaced apart by means of at least one transparent spacer made of glass bonded to the periphery said sheets of glass so as to provide an intermediate space filled with gas.
- the width of the gap varies locally because the flatness of the spacer is never perfect, and even the occasional use of clamps does not ensure a gap also weak along the entire length of the spacer.
- the method according to the invention may also comprise, prior to the step of supplying the spacer, a step of cutting the spacer, in particular by tracing-breaking or laser cutting, from a sheet of glass, in particular obtained by floating.
- This cutting step can be carried out in the same workshop or the same factory as the following stages of the process, or can have been carried out in another workshop or another factory, or even by another economic actor.
- the cutting step is preferably followed by at least one polishing step in order, if necessary, to adjust the roughness of the rough faces.
- the polishing can for example be a mechanical polishing using abrasive powders.
- the spacer preferably has a generally square or rectangular section.
- the spacer glass is preferably a monolithic glass.
- the spacer preferably has two chamfers on one of the smooth faces, more particularly that intended, in the mounted position of the spacer, to form the edge of the glazing. These chamfers make it possible to facilitate the step of depositing the adhesive from the external junctions between the rough faces of the spacer and the internal faces of the glass sheets.
- the glass spacer preferably has a thickness less than or equal to 14 mm or 12 mm, in particular a thickness between 4 and 14 mm, in particular between 6 and 12 mm, or even between 8 and 11 mm. This thickness is reduced compared to that of spacers obtained by water jet cutting.
- the glass spacer preferably has a width ranging from 10 to 16 mm, in particular from 12 to 14 mm.
- thickness is understood to mean the dimension extending in a plane parallel to the general surfaces of glass sheets in the mounted position of the spacer, that is to say the dimension extending from the edge of the glass sheets towards the inside of the glazing. The thickness therefore corresponds to the distance between the smooth faces of the spacer. This thickness also corresponds to the thickness of the glass sheet from which the spacer was cut.
- the "width" of the spacer corresponds to the distance between the rough faces of the spacer, therefore to the dimension separating the two glass sheets in the mounted position of the spacer.
- the roughness Rz of the rough faces of the spacer is preferably within a range from 1 to 10 ⁇ m, preferably from 2 to 9 ⁇ m. This roughness corresponds to the roughness Rz within the meaning of standard ISO 4287: 1997.
- the limit wavelength (also called cut-off) Xc is preferably 0.8 mm. Such roughness is favorable for obtaining gap widths as claimed.
- the smooth faces of the spacer preferably correspond to faces of glass sheets obtained by floating. They then have an extremely low roughness, the roughness Rz generally being less than 0.2 ⁇ m. In all cases the roughness of the smooth faces is less than the roughness of the rough faces.
- the glass sheets are preferably made of tempered glass.
- the thickness of each of the glass sheets is between 2 and 5 mm, and is preferably 3 to 4 mm in order to minimize the overall weight of the glazing and to optimize the light transmission.
- the glass sheets are preferably obtained by floating. They are preferably made of clear or extra-clear glass, always with the aim of optimizing light transmission.
- the glass sheets are kept spaced apart by the spacers so as to provide an intermediate space filled with gas, also called a "gas slide".
- the gas slide preferably has a thickness of at least 4 mm and is adapted as a function of the desired performance of the heat transfer coefficient U, without normally being greater than 16 mm or even 20 mm.
- the gas plate is advantageously made up of air or preferably, to reinforce the level of insulation of the glazing, of a rare gas, chosen from argon, krypton, xenon, or a mixture of these different gas, at a filling rate of at least 85%. For a further improved U coefficient, filling with at least 92% krypton or xenon will be preferred.
- the or each transparent glass spacer is disposed between the two sheets of glass.
- the assembly step is preferably preceded by a step of applying an adhesion primer to the rough surface of the spacers and / or to the internal surface of the glass sheets intended to come into contact with the spacers.
- the step of applying the adhesion primer may itself include a preliminary step of depositing silica or silicates by flame pyrolysis. The flame also eliminates any residual water or solvent.
- the assembly is preferably done horizontally, by placing the or each spacer on a first glass sheet, then by placing the second glass sheet on the or each spacer.
- the assembly of glass sheets and spacers obtained after the assembly step will be called "assembly".
- the or each transparent glass spacer is generally disposed along an entire edge, any spacer abutment being detrimental to the sealing of the glazing and requiring the addition of an unsightly sealant.
- Clamping means such as clamps, are preferably positioned at different positions, along the edge of the glazing, so as to maintain the assembly in position by exerting pressure on the glass sheets.
- the interstitial width between the rough faces of the spacer and the internal faces of the glass sheets must be at least plus 0.01 mm, over the entire length of the spacer, therefore generally over the entire length of the edge of the glass sheet near which the spacer is arranged.
- the fact that the interstitial width is less than 0.01 mm or not is preferably verified, immediately after assembly and before removing the glue, using calibrated shims or gauges, typically made of steel.
- an operator tries to insert said wedge into the gap separating the rough faces of the spacer from the internal faces of the glass sheets, without forcing, over the entire thickness of the spacer, from the line outer junction between the rough faces of the spacer and the inner faces of the glass sheets.
- the operation is repeated over the entire length of the edge of the glass sheets.
- the interstitial width is less than 0.01 mm when it is not possible to insert a shim whose thickness is 0.01 mm. If there are areas of the edge of the glass sheets in which a shim of 0.01 mm thick can be inserted, the interstitial width is then 0.01 mm or more, and clamping means can be added or moved to these areas to locally reduce this interstitial width.
- external junction line means the junction line located outside the glazing.
- the glue can for example be deposited using a syringe moved along the edge.
- the glue is then moves by capillary action so as to distribute well in the gap and ensure a homogeneous bonding.
- the latter preferably has a viscosity of between 300 and 900 mPa.s. Displacement by capillarity is thus optimized.
- the difference between the refractive index of the adhesive, after crosslinking, and the refractive index of the glass used for the spacers and the glass sheets is preferably at most 0.3, especially at most 0.2 and even at most 0.1. This eliminates the visual impact due to the roughness of the rough faces of the spacer.
- the spacers and the glass sheets will be chosen from soda-lime-silica glass, the refractive index of which in the visible is of the order of 1.5.
- the refractive index in the visible (for example at 550 nm) of the adhesive after crosslinking is preferably between 1.4 and 1.6.
- the adhesive is preferably crosslinkable under ultraviolet radiation.
- the adhesive crosslinkable under ultraviolet radiation preferably comprises at least one oligomer, at least one monomer (also called diluent) and at least one photoinitiator (also called photoinitiator).
- the oligomer preferably consists of an oligomeric chain terminated at each end by a reactive function capable of polymerizing.
- the oligomer preferably comprises an acrylate function at each end of an oligomeric chain chosen from polyurethane, polyester, polyether, epoxide and polysiloxane chains.
- the monomer preferably has one or more reactive functions and, after polymerization, is incorporated into the polymer network.
- the monomer preferably comprises at least one acrylate function. The presence of monomer reduces the viscosity of the adhesive, the oligomer being in itself too viscous.
- the photoinitiator is a chemical compound the photolysis of which releases reactive species towards the functional grouping of the monomer.
- the photoinitiator is preferably of the radical type.
- the photoinitiator is preferably an aromatic ketone.
- the curing step is carried out by exposure to ultraviolet radiation.
- the exposure is preferably carried out from one side of the assembly, in order to crosslink in a single step the glue located on either side of the spacer.
- a radiation source is then placed on one side of the assembly, preferably under the assembly.
- the exhibition can be carried out on each side of the assembly. There are then two sources of radiation on either side of the assembly. In this case the exposure can be realized simultaneously or not.
- the or each radiation source preferably extends over the entire length of the spacer to be bonded.
- the exposure step is carried out using two radiation sources, each being arranged in one and the same side of the assembly facing only one of the spacers. It is thus possible in a single step to harden the adhesive for the entire assembly.
- crosslinking conditions in particular the type of lamp used and the power of the lamp, also had an impact on the appearance of cracks during aging.
- the quantity of energy received which depends on the wavelength, the power of the lamp, the distance between the lamp and the assembly and the duration of exposure, is in particular an important parameter, in that that it influences the speed of crosslinking of the adhesive, and therefore on the quality of the crosslinking.
- the speed of crosslinking increases in particular with the amount of energy received over a given period of time.
- parasitic reactions for example with the environment of the adhesive, such as water, oxygen, volatile species, compete with the reaction of crosslinking of the adhesive, which harms the good hardening of the glue.
- the resistance to aging of the adhesive depends on how the dose of ultraviolet radiation has been delivered. For the same dose, the choice of duration of exposure and intensity emitted was found to have an important influence.
- Ultraviolet radiation can be of the UV-A (wavelength from 315 to 400 nm) and / or UV-B (wavelength from 280 to 315 nm) type.
- Ultraviolet radiation comes from at least one source of radiation.
- Ultraviolet radiation preferably comes from light-emitting diodes (UV LEDs).
- the emission spectrum is such that at least 95% of the power is emitted at wavelengths between 360 and 390 nm.
- UV LEDs light-emitting diodes
- the use of this type of device makes it possible to reduce the cracking of the adhesive compared to UV discharge lamps, which have a much wider and less intense emission spectrum, requiring longer exposure times. It has been shown that the intensity emitted by the radiation source, the duration of exposure and the distance between the assembly and the radiation source influence the appearance of cracks after aging.
- the intensity of the ultraviolet radiation is preferably within a range ranging from 10 to 200 mW / cm 2 , in particular from 20 to 150 mW / cm 2 , or even from 40 to 100 mW / cm 2 .
- the duration of exposure to ultraviolet radiation is preferably within a range from 1 to 1000 seconds, in particular from 10 to 500 seconds, or even from 100 to 300 seconds.
- the distance between the radiation source and the assembly is preferably within a range from 0.5 to 5 cm, in particular from 0.6 to 3 cm, from 0.7 to 2 cm.
- the glazing can advantageously be provided on at least one of the glass sheets with one or more low-emissivity coating (s) and / or with an anti-fog or anti-frost layer, thus avoiding means of usual heating, which contributes to energy saving.
- the glazing includes two sheets of glass.
- it may include three, the glazing then being triple glazing.
- the edge of the glazing comprises two spacers, arranged between the three sheets of glass.
- the subject of the invention is also a climatic cabinet, of the refrigerated cabinet type, in particular cold positive, comprising at least one insulating glazing according to the invention, the glazing being in particular integrated into an opening.
- the piece of furniture can comprise a plurality of glazing units joined vertically to one another, the transparent spacer (s) generally being arranged vertically in the mounted position of the glazing (s).
- the piece of furniture constitutes for example a positive cold refrigerated piece of furniture intended to be installed along a store aisle. It is thus possible to constitute a piece of furniture with a whole row of openings butted laterally to each other vertically along their edge.
- the opening obtained according to the invention comprising the insulating glazing of the invention has not need to include vertical uprights forming a frame and provided with thick joints at the junction of two opening / butted glazing.
- the glazing obtained according to the invention thus makes it possible, by the transparency of its vertical edges, to provide a continuous transparent surface when the glazing is joined by their edge.
- Each insulating glazing unit comprises at least two sheets of glass held parallel spaced apart by spacers which are preferably transparent at the level of the opposite vertical parts in the mounted position of the glazing unit.
- the facade of the glazing and therefore of the furniture is thus purified of any structural frame and presents a smooth appearance of glass wall. We gain in this way in vision space.
- the transparent spacer (s) are preferably arranged vertically in the mounted position of the glazing (s). They are therefore generally arranged along the long edges of the rectangular glass sheets.
- Transparent spacers can also be arranged horizontally in the mounted position of the glazing (s). It is however preferred to use spacers and non-transparent sealing means, in particular those typically used for the manufacture of glazing. insulators, and therefore less expensive.
- the horizontal parts, at the top and bottom of the insulating glass, are in fact located in areas where they do not interfere with the visibility of the products displayed. They may in particular be metallic spacers, for example aluminum, or polymeric or composite spacers, and non-transparent sealants.
- An enamel strip, for example black can be deposited, in particular by screen printing, on at least one of the glass sheets facing the non-transparent spacers and sealing means in order to conceal them.
- the glazing therefore comprises two transparent glass spacers glued over the entire length of the long edges of the glass sheets, and two non-transparent spacers, for example metallic, polymeric or composite, glued over the entire length of the short edges of glass sheets.
- the non-transparent spacers are preferably polymeric or composite (reinforced polymers). It may for example be spacers made of a copolymer of styrene and acrylonitrile reinforced with glass fibers.
- the glazing may also include, on the edge of the long edges, a transparent profile, for example polymeric, in particular made of polycarbonate. This profile can be glued to the smooth faces of the spacers located outside the glazing as well as to the edges of the glass sheets.
- the glazing obtained according to the invention preferably has at least one of the following performances, after aging:
- FIG 1 illustrates a partial sectional view of an assembly of glass sheets and transparent spacer intended, at the end of the assembly step.
- the various constituents of the final glazing are shown in this figure, which can therefore also represent a partial section of a glazing obtained according to the invention.
- the glazing 1 is obtained by assembling a first and second glass sheets 2 and 3, held in parallel spaced apart using a transparent glass spacer 4 so as to provide an intermediate space 5, which will be filled with gas.
- the spacer 4 is substantially parallelepipedal, of generally rectangular section, if one neglects the presence of the chamfers 45 and 46.
- the spacer 4 comprises two rough faces 41 and 42 opposite one another as well as two smooth faces 43 and 44 also opposite one to the other.
- the spacer 4 was obtained by cutting from a sheet of float glass, the rough faces 41 and 42 corresponding to the cutting faces (possibly after a subsequent polishing) and the smooth faces 43 and 44 to the original faces of the glass sheet.
- each rough face, respectively 41 and 42 is arranged against an internal face, respectively 21 and 31, of the glass sheets 2 and 3, near an edge.
- the smooth face 43 is therefore found on the outer edge of the glazing, and the smooth face 44 is turned towards the intermediate space.
- clamps are preferably positioned in certain areas of the edge of the assembly in order to exert pressure on the glass sheets.
- the assembly is preferably formed horizontally, as shown in the figure.
- the interstitial width is thus influenced by the roughness Rz of the rough faces and by the vertical pressure due to the gravity and the pinching exerted by the clamps.
- the glass sheets 2 and 3 are also chamfered.
- the assembly forms external junction lines 24 and 34 between the rough faces 41 and 44 and the internal faces 21 and 31 of the glass sheets. It is at these junction lines that the adhesive is deposited, for example by means of a syringe. The presence of the chamfers makes this removal step easier.
- An assembly such as that shown in FIG. 1 was formed from square glass sheets 10 cm in side and transparent glass spacers 10 cm long.
- the spacers were of rectangular section (thickness of 10 mm and width of 13 mm) with a chamfer.
- the rough faces of the spacers and the area of the internal faces of the glass sheets intended to come into contact with the spacers were coated with an adhesion primer.
- the deposition of the primer was carried out in two stages, first a deposition of silica by pyrolysis using a torch, then a deposition of a Pyrosil® primer sold by the company Bohle. Clips were placed in order to keep the assembly in place during the steps of depositing and curing the glue.
- the interstitial width was imposed by the interposition of gauges of calibrated thicknesses arranged at the ends of the assembly.
- no thickness gauge was placed in the assembly, but a verification using a calibrated gauge of thickness 0.01 mm made it possible to confirm that the interstitial width was less than 0.01 mm. Over the length of the spacer, it was indeed impossible without forcing to insert the gauge throughout the thickness of the spacer.
- the spacer 1 has a roughness Rz of 5 to 6 ⁇ m, the spacer 2 a roughness Rz of approximately 4 ⁇ m.
- the adhesive (Verifix LV 740 sold by the company Bohle) was then deposited using a syringe at the level of the outer junction lines between the rough faces of the spacer and the internal faces of the glass sheets.
- the assembly was then subjected, in the bonding area, to exposure to ultraviolet radiation using two types of radiation sources:
- Neon type discharge lamp having an emission spectrum having a wide band ranging from 320 to 400 nm and centered on the wavelength of 360 nm, or
- the lamps were located 1 cm from the assembly.
- the glazings obtained were subjected to accelerated aging in a humid environment, at a temperature of 58 ° C. for a relative humidity greater than 95%.
- the table below presents, for each of the tests, the type of spacer (1 or 2), the interstitial width (denoted i and expressed in mm), the nature of the source, the intensity of the source (denoted I , in mW / cm 2 ), the exposure time (noted d and expressed in seconds), as well as the results of the aging test.
- results consist of an initiation time (noted t and expressed in hours) and a qualitative score (noted F, without unit).
- the grade F is given after visual examination of the bonding area. A score of 5 or less indicates no cracking or very little cracking. The higher the score, the more significant the cracking area.
- the initiation time corresponds to the aging time from which the samples obtain a score of 5.
- Moisture penetration tests after short aging cycle were carried out under the conditions of standard EN 1279-6, and in the case of implementation of the invention in accordance with that of Example 3, l 'moisture penetration index I was less than 5%. On the other hand, in an implementation in which the interstitial width was not less than 0.01 mm, the index I was generally greater than 10%, even 20%.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Glass To Other Materials (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/287,847 US11668132B2 (en) | 2018-10-23 | 2019-10-22 | Process for obtaining an insulating glazing |
MX2021004634A MX2021004634A (es) | 2018-10-23 | 2019-10-22 | Proceso para obtener un encristalado aislante. |
EP19789991.7A EP3870793A1 (fr) | 2018-10-23 | 2019-10-22 | Procede d'obtention d'un vitrage isolant |
BR112021005574-6A BR112021005574A2 (pt) | 2018-10-23 | 2019-10-22 | processo de obtenção de uma vidraça isolante |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1871278 | 2018-10-23 | ||
FR1871278A FR3087471B1 (fr) | 2018-10-23 | 2018-10-23 | Procede d’obtention d’un vitrage isolant |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020083939A1 true WO2020083939A1 (fr) | 2020-04-30 |
Family
ID=65685814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/078766 WO2020083939A1 (fr) | 2018-10-23 | 2019-10-22 | Procede d'obtention d'un vitrage isolant |
Country Status (6)
Country | Link |
---|---|
US (1) | US11668132B2 (fr) |
EP (1) | EP3870793A1 (fr) |
BR (1) | BR112021005574A2 (fr) |
FR (1) | FR3087471B1 (fr) |
MX (1) | MX2021004634A (fr) |
WO (1) | WO2020083939A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021113001A1 (de) | 2021-05-19 | 2022-11-24 | Klaus Peter Bayer | Isolierglaselement, Kühlmöbel mit diesem und Verfahren zum Herstellen eines Isolierglaselements |
WO2024038179A1 (fr) * | 2022-08-18 | 2024-02-22 | Rolltech A/S | Profilé espaceur comprenant une couche externe de polymère traité à l'acide, une feuille barrière composite, procédé de fabrication de tels espaceurs et utilisation de polymères traités à l'acide dans des profilés espaceurs pour unités de verre isolant |
DE102022130805B3 (de) | 2022-11-22 | 2023-12-21 | Klaus Peter Bayer | Isolierglaselement, Kühlmöbel mit diesem und Verfahren zum Herstellen eines Isolierglaselementes |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017157636A1 (fr) | 2016-03-18 | 2017-09-21 | Saint Gobain Glass France | Vitrage isolant avec espaceur en verre, notamment pour meuble climatique |
WO2017157634A1 (fr) * | 2016-03-18 | 2017-09-21 | Saint Gobain Glass France | Vitrage isolant notamment pour enceinte climatique |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US5217656A (en) * | 1990-07-12 | 1993-06-08 | The C. A. Lawton Company | Method for making structural reinforcement preforms including energetic basting of reinforcement members |
GB0803784D0 (en) * | 2008-02-29 | 2008-04-09 | Pilkington Group Ltd | Fire resistant glazings |
GB0906293D0 (en) * | 2009-04-14 | 2009-05-20 | Beresford Gary P | Multiple panel glazing unit |
DE202012013218U1 (de) * | 2012-07-10 | 2015-06-25 | Remis Gesellschaft für Entwicklung und Vertrieb von technischen Elementen mbH | Kühlschrank |
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2018
- 2018-10-23 FR FR1871278A patent/FR3087471B1/fr active Active
-
2019
- 2019-10-22 BR BR112021005574-6A patent/BR112021005574A2/pt unknown
- 2019-10-22 WO PCT/EP2019/078766 patent/WO2020083939A1/fr unknown
- 2019-10-22 US US17/287,847 patent/US11668132B2/en active Active
- 2019-10-22 EP EP19789991.7A patent/EP3870793A1/fr active Pending
- 2019-10-22 MX MX2021004634A patent/MX2021004634A/es unknown
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WO2017157636A1 (fr) | 2016-03-18 | 2017-09-21 | Saint Gobain Glass France | Vitrage isolant avec espaceur en verre, notamment pour meuble climatique |
WO2017157634A1 (fr) * | 2016-03-18 | 2017-09-21 | Saint Gobain Glass France | Vitrage isolant notamment pour enceinte climatique |
Also Published As
Publication number | Publication date |
---|---|
MX2021004634A (es) | 2021-05-28 |
FR3087471B1 (fr) | 2020-11-06 |
FR3087471A1 (fr) | 2020-04-24 |
EP3870793A1 (fr) | 2021-09-01 |
US11668132B2 (en) | 2023-06-06 |
US20210396070A1 (en) | 2021-12-23 |
BR112021005574A2 (pt) | 2021-06-29 |
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