WO2015000090A2 - Vitre coupe-feu et vitrage coupe-feu - Google Patents

Vitre coupe-feu et vitrage coupe-feu Download PDF

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Publication number
WO2015000090A2
WO2015000090A2 PCT/CH2014/000092 CH2014000092W WO2015000090A2 WO 2015000090 A2 WO2015000090 A2 WO 2015000090A2 CH 2014000092 W CH2014000092 W CH 2014000092W WO 2015000090 A2 WO2015000090 A2 WO 2015000090A2
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WO
WIPO (PCT)
Prior art keywords
fire
glass pane
resistant glass
glass
resistant
Prior art date
Application number
PCT/CH2014/000092
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German (de)
English (en)
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WO2015000090A3 (fr
Inventor
Udo Gelderie
Original Assignee
Saint-Gobain Glass France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint-Gobain Glass France filed Critical Saint-Gobain Glass France
Publication of WO2015000090A2 publication Critical patent/WO2015000090A2/fr
Publication of WO2015000090A3 publication Critical patent/WO2015000090A3/fr

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Classifications

    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass

Definitions

  • the invention relates to the field of fire protection. It relates to a fire-resistant glass pane with a soda-lime glass in accordance with EN 572-1 (as of June 2014) and a fire-resistant glazing with such a fire-resistant glass pane as well as a method for producing a fire-resistant glazing.
  • a fire-resistant glass pane must remain effective in the event of a fire and prevent the passage of fire and smoke.
  • soda lime glass which has a lower cooling point of about 510 ° C-514 ° C.
  • a compressive stress can be generated in the glass sheet. The compressive stress increases the resistance and in particular the thermal shock resistance of the glass pane.
  • FR 2764596 shows a soda lime glass and its application, for example as fire protection glass.
  • the chemical composition of the disclosed soda-lime glass is not fully covered by the EN 572 standard (as of June 2014). As a result, the approval of glassware not covered by this standard is cumbersome and time consuming.
  • a soda-lime glass in accordance with EN 572-1 (as of June 2014) is composed as follows:
  • Alumina (A1203) 0% to 3%;
  • the fire-resistant glass pane made of soda-lime glass in accordance with EN 572 (as of June 2014) has a lower cooling point above 520 ° C and is thermally pre-stressed.
  • the lower cooling point also called “lower relaxation limit” or “strain point” represents a maximum service temperature of a glass component. Above this limit temperature, internal mechanical stresses are gradually reduced and the properties thereby changed permanently (but not irreversibly).
  • the viscosity of the glass at the lower cooling point is by definition 10 14'5 Pa s.
  • soda-lime glass has a lower cooling point of 510-514C.
  • a glass with a lower cooling point above 520 ° C especially above 525 ° C, especially at least 530 ° C or at least 535 ° C, it becomes possible to increase the biases in the glass during thermal tempering / hardening.
  • insufficient bias in the glass during thermal tempering / curing along with microvibrations at the glass edge is one of the major causes that can lead to spontaneous breakage in fire conditions.
  • the dilatometric softening point is, for example, at least 640 ° C, 645 ° C or 650 ° C, especially between 650 ° C and 680 ° C, compared to commercial soda-lime glasses with softening points between 615 ° C.
  • the softening point is closer to that of the glasses based on aluminosilicate or expensive special glasses such as alkaline earth silicate glasses, borosilicate glass, etc.
  • expensive special glasses can be produced according to the invention thermally tempered fire resistant glass panes in large quantities.
  • the durability of the fire-resistant glass pane depends, among other things, on a temperature difference between a center of the pane and an edge area of the fire-protection pane.
  • the edge region can be enclosed, for example, in a frame and is thus covered in the event of fire against the heat source. Therefore, the edge area is cooler in case of fire than the center of the pane, which is exposed directly to the fire.
  • the maximum temperature difference that the fire glass will endure before failure occurs is proportional to a stress that can be created by the thermal tempering in the fire protection glass pane.
  • the dilatometric softening temperature corresponds to the temperature at which a test specimen above a transformation area ceases to expand.
  • the fire-resistant glass pane may have a fire resistance period of at least 30 minutes, in particular at least 60 minutes, in particular at least 90 minutes.
  • the fire resistance may be considered as a component's ability to provide an effective barrier to the propagation of flames, smoke and hot lanes and / or to prevent the transmission of heat radiation.
  • a fire resistance period is defined as the minimum duration in minutes, during which the fire protection element meets certain standardized requirements when tested according to standardized test procedures with defined boundary conditions (EN 1364 and EN 1363) and under a certain temperature load. These possibly standardized requirements are, for example, in EN 13505 lists or defines and enables the classification of fire protection elements. The fire resistance period is thus a measure of the usefulness of the construction in case of fire. In other words, during the fire resistance period, the passage of fire through the fire protection element is prevented, thus ensuring an enclosure under fire conditions (EN 1363 and EN 1364).
  • the fire protection element can fulfill even more functions, such as a heat insulation.
  • the period of time within which the fire protection elements tested in accordance with the above-mentioned standards meet the corresponding criteria or requirements permits the classification of the fire protection element.
  • the fire protection elements can be classified as follows according to Nonn EN 13501 (as of December 2013). All classification times are given for each classification in minutes, using the classification times: 10, 15, 20, 30, 45, 60, 90, 120, 180, 240 or 360.
  • the fire resistance period is thus defined as at least 10 minutes.
  • a fire protection element therefore meets the corresponding criteria or requirements for at least 10 minutes (see classification - EN 13501) for the fire resistance period.
  • the minimal criterion is the room closure.
  • a fire protection element must therefore be classifiable as at least E10.
  • the fire-resistant glass pane can have a thickness of, for example, a maximum of 19 mm, in particular a maximum of 15 mm, in particular a maximum of 10 mm, in particular maximum 6 mm.
  • a thickness of for example, a maximum of 19 mm, in particular a maximum of 15 mm, in particular a maximum of 10 mm, in particular maximum 6 mm.
  • the fire window is light, meets the requirements of EN 572 and a fire resistance period of at least 30 minutes, in particular at least 60 minutes, in particular at least 90 minutes may have.
  • Such a combination may be advantageous because such a fire-resistant glass can cover a wide range of applications.
  • a thermal expansion coefficient of the fire protection glass pane can with, for example 80XL O "7 K ⁇ 'to 86xlO ⁇ 7 K ⁇ ' is smaller than that of the commercial Kalknatronglases with 89xl0" be 7 K " '. Due to the smaller thermal expansion coefficient, the fire protection glass has a higher thermal stability and Therefore, especially in case of fire, it is possible to withstand greater temperature differences between an edge region of the fire protection glass pane and a center of the pane of the fire protection glass pane than the commercially available soda lime glass
  • Fire protection glass pane lies eg. In egg ⁇ nem range between a minimum of 75x10 "7 K -1, in particular minimal 80x10" 7 IC 1 and at most 84xl0 "7 K” 1, especially a maximum of 86x10 "7 K” 1.
  • the fire-resistant glass has good thermal shock resistance.
  • the fire-resistant glass pane has a lower density than aluminosilicate glasses. As a result, for example, a transport and installation of fire-resistant glass are facilitated.
  • Soda lime glass as a product is defined in the standard DIN EN 572 (as of 2012), whereby the mass requirements and the quality with regard to optical and / or visible defects are defined.
  • the fire-resistant glass panes discussed here can optionally according to embodiments also fall under this standard (as of 2012) for soda-lime glass for glass panes. More generally, soda-lime glasses are glasses with a substantial content of calcium oxide and of sodium oxide.
  • soda-lime-based glass sheets with increased lower cooling point are already known per se, for example from US 2012/234368, where a composition for a float glass pane as a substrate for photovoltaic cells is taught.
  • the substrate for the photovoltaic cell has at least one electrode.
  • the advantages of the glass pane selected in US 2012/234368 are improved thermal resistance, which allows compatibility with the manufacturing process of the photovoltaic cell.
  • soda-lime-based glass sheets with a lower cooling point above 520 ° C. are particularly advantageous in connection with a thermal tempering process.
  • a thermal tempering process the glass becomes as homogeneous as possible, i. as constant as possible over the cross-section, heated to a temperature (pretensioning temperature) which is about 100 ° C above the lower cooling point.
  • the glass sheet is cooled rapidly from the surfaces and placed in a residual stress state.
  • the cooling is carried out, for example, by blowing with Kaltluit or by pressing cold metal plates, whereby the glass sheet is strongly quenched.
  • the material on the surface solidifies very quickly, while the underlying material continues to contract on further cooling. In this way, in the glass surface to form a compressive stress, while the glass interior is under a tensile stress.
  • the tempering temperature is also increased compared to the tempering temperature for commercially available soda-lime glasses.
  • the temperature difference between the tempering temperature of the glass sheet and the temperature after cooling is greater than with commercially available soda-lime glass panes.
  • Microcracks or other pre-damages present in the surface of the glass pane are compressed by the compressive stress generated and hindered from opening, that is to say from initiation of a fracture, under load. Therefore, increased stability of the glass pane in comparison to commercially available soda-lime glasses can be achieved by increasing the prestressing of the glass pane.
  • the fire-resistant glass pane has, for example, a chemical composition with a Na 2 O content of at least 10% (lower limit in accordance with standard DIN EN 572), in particular from at least 1 1% to a maximum of 16%, in particular up to a maximum of 14% or 12.5%.
  • the fire-resistant glass pane in particular a smaller proportion of Na 2 0 than commercial soda lime glass with about 13.7% Na 2 0. This allows an increased high-temperature viscosity and an increased softening temperature can be realized. Too high a content of Na? 0 also leads to a lowering of the hydrolytic resistance and the thermal stability of the glass. Analogously, too high a content of K 2 O leads to the same disadvantages as an excessively high content of Na 2 O.
  • the Na 2 O content of the fire-resistant glass pane is, for example, at least 10%, in particular at least 1 1% and / or at most 12 %, in particular at most 1 1.5%.
  • the K 2 0 content of the fire protection glass pane for example, at most 1%, in particular more than 0.5% or even at most 0.3% or at most 0.1%. It turns out that a significant content of K 2 0 can significantly lower the lower cooling point.
  • the content of Na 2 O and K 2 O together is, for example, a maximum of 12.5%, in particular a maximum of 1.5%.
  • the fire-resistant glass pane preferably has a chemical composition with a maximum A1203 content of 3 percent by weight, wherein the minimum proportion of A1203 may be 0 percent by weight.
  • the alumina enables a hydrolytic resistance of the glass to be increased and a refractive index of the glass to be reduced.
  • the A1203 content of the fire-resistant glass pane is, for example, at least 0.5%, in particular at least P / o, 1.5% or 2% or at most at least 2.5%.
  • the fire-resistant glass pane does not have a chemical composition with an A1203 content between 1.5 and 3, in particular between 1.7 and 2.5 percent by weight.
  • Addition of CaO may be advantageous for reducing the high temperature viscosity of the glass. This will allow melting and refining of the glass while improving the lower cooling point and, associated therewith, the thermal stability of the glass Increasing the softening temperature and refractive index associated with the oxides of CaO will limit the CaO
  • the CaO content of the fire-resistant glass pane is preferably at least 8%, in particular at least 9%, 10%, the CaO content preferably being at a maximum of 13%, in particular not more than 12%.
  • MgO is used for improving chemical resistance while also lowering the viscosity of the glass.
  • a high content leads to an increased risk for devitrification.
  • the MgO content is preferably between 0 and 6%.
  • the fire-resistant glass pane preferably has a chemical composition with a maximum silica content of 72.5 percent by weight, the minimum proportion being 69 percent.
  • the fire-resistant glass for example, have a lower cooling point above 530 ° C. This makes it possible to achieve even better thermal prestressing, whereby the above-mentioned advantages are even more effective than with soda lime glass with a lower cooling point of about 520 ° C.
  • the lower cooling point of the fire-resistant glass pane for example, in a range between 520 ° C and 550 ° C, in particular at least 525 ° C, or at least 530 ° C, in particular at least 539 ° C, the lower cooling point, for example, not greater than 560th ° C is.
  • the lower cooling point of the fire-resistant glass pane is about 30 ° C higher than the lower cooling point of a commercially available soda lime glass pane with a lower cooling point of about 510 ° C.
  • a fire-resistant glazing has a transparent arrangement with a frame or (for frameless constructions, for example, for structural facades (structural glazing ')) of a holder, wherein the transparent arrangement has at least one first fire-resistant glass pane, which is fitted into the frame or held by the holder ,
  • the procedure according to the invention makes it possible for a failure of the fire-resistant glass pane in the event of a fire to be significantly delayed in comparison to a commercially available soda-lime glass pane according to the prior art.
  • the increased preload prevents the glass from breaking within the first few minutes of the fire.
  • the inventive method causes a delayed softening, whereby the fire-resistant glass pane not 30 minutes ago from the frame or the Bracket melts. It can also fire resistance periods of at least 60 minutes can be achieved.
  • the fire-resistant glass panes can be used in the production of, for example, laminated glass and insulating glass with fire protection properties. It is also possible to provide the fire-resistant glass pane with coatings based on metal / metal oxide (for example as infrared-reflecting coatings).
  • a method for producing a fire-resistant glazing comprises the following steps:
  • the method has at least the following further step:
  • the at least one first fire-resistant glass pane may be subjected to at least the following additional step:
  • the edge strength of the fire-resistant glass pane can be increased compared to untreated or untreated soda-lime glass panes.
  • the increase in edge strength is particularly pronounced when, as above described the fire glass after the additional Schiitt of grinding and polishing (Edges of the edges) has a high thermal bias.
  • the edge of a fire-resistant glass pane can be the starting point for a breakage of the glass pane with changing thermal load (for example due to solar radiation in the case of window panes) and in the event of fire under high thermal stress.
  • the changing thermal load arises, for example, by enclosing the fire protection glass pane in the frame, wherein the bordering with a certain installation depth of the fire protection glass pane is realized in the frame.
  • the edge of the fire glass is covered by the frame and may have a lower temperature than an uncovered area of the fire glass.
  • Such a temperature difference can particularly stress the edges and the fire glass in the vicinity of the edges.
  • the edge strength can be, for example, at least 60 MPa, in particular 60-90 MPa, in particular 65-75 MPa.
  • Mechanical grinding is a material-removing process. Grinding is a material-removing machining process in which material is removed by a large number of hard crystals (abrasive grains) of undefined geometry. During the grinding process, therefore, material is removed from the surface of the workpiece to be machined (for example, the edge of the fire-resistant glass pane) and thus scratches and grinding marks are produced. The finer the abrasive grain (small mean grain size), the flatter and finer the grinding marks.
  • the polishing can also be material-removing. The smoothing effect is typically achieved with at least one of two mechanisms during polishing. On the one hand, roughness peaks of the surface structure are plastically and partially plastically deformed and thus leveled. To the Another may also be a material removal (fine grinding), and possibly also filling depressions.
  • polishing lies in the achievable surface roughness. This is lower after polishing after sanding. Polishing may be performed directly as a continuation of mechanical grinding and with a smaller average abrasive grain size than grinding. By definition, polishing of the edge is done with a second means different from the first means used for grinding.
  • the ground and polished edges can have no microcracks greater than 250 nm. It is also possible to carry out several grinding steps or several polishing steps in succession.
  • a first abrasive has a larger mean grain size than a second abrasive, wherein the edge is first ground (coarse) with the first abrasive and then (fine) ground with the second abrasive. It is of course possible to use my.- as two abrasives, which is always used first when grinding a coarser abrasive and then a finer abrasive is used.
  • the polishing is carried out with a polishing agent, which has a finer or smaller average grain size than the last abrasive.
  • the fire-resistant glass pane is cut to a desired size.
  • a cutting of the fire-resistant glass pane takes place in particular in such a way that as little as possible microdamage and microcracks are caused on the glass surface. This is due to the fact that the fewer microdamage and microcracks are present through the cut in the glass, the less micro damage and MikiOrisse must be removed with the help of the additional grinding and polishing step.
  • the edge of the fire glass may also have a profile.
  • the profile may have a U-like shape and may well conform to the frame or seal in the frame or holder.
  • the finished edge has no or hardly any irregularities.
  • the profiling of the edges if they are formed over the entire length of the edges. This makes it possible to avoid hard transitions and thus reduce the number of possible starting points for bursting the fire glass. Further preferred Ausyoglirungsformen emerge from the dependent claims. Characteristics of the method claims are analogously combined with the device claims and vice versa.
  • a commercially available soda-lime glass has the following composition:
  • the commercially available soda-lime glass has a lower cooling point of considerably less than 520 ° C. It is cut to a glass thickness of 6 mm by means of processes according to the prior art. The glass is ground circumferentially by means of cup wheels in a grinding unit and then polished. The glass removal during grinding is 1 mm per side:
  • Such a glass is thermally pre-stressed.
  • the tensile strength according to EN 1288-3 is approx. 200 MPa. If such a glass is installed in a frame system, the glass melts in the fire test after 28 minutes from the frame system, because it has exceeded its softening point and the mechanical stability is no longer given. This means that the fire resistance time is reached after 28 minutes.
  • Example 2 In order to achieve a better fixation of a glass pane towards the end of the fire resistance time, the glass pane is installed in a frame with a 5 mm higher edge coverage (larger edge coverage) than in example 1. If the glass sheet produced as described in Example 1 is tested in such a manner, the glass burst due to a so-called spontaneous breakage in the first few minutes of the firing test. The spontaneous break is due to a large temperature difference between the covered, cool edge of the glass and the hot center of the disk, which is exposed directly to the fire. The temperature difference in this example exceeds a maximum tensile stress generated during thermal toughening.
  • the fire-resistant glass pane has the following composition in percent by weight:
  • a fire-resistant glass pane with such a composition has a lower cooling point of 537 ° C. This is 27 ° C higher than the strain point of a standard composition containing 71.8% Si0 2, 0.6% A1 2 0 3, 9.5% CaO, 4.0% MgO, 13.7% Na 2 0, 0% K 2 0 and 0.28% to S0. 3 From the molten glass composition, a glass sheet is pulled by means of the so-called float process. This fire-resistant glass pane has a low tendency to scratch and a significantly higher dilatometric softening temperature than the glass pane of Examples 1 and 2.
  • the cooled fire glass is now cut to a size that is desired by a user, here on 6000 mm x 3210 mm, the glass has a thickness of for example 6 mm.
  • the edges of the fire-resistant glass pane are first ground using a grinding wheel with a mean grinding grain size of 151 microns. Subsequently, the edges of the fire-resistant glass pane are ground with a further grinding wheel with a mean abrasive grain size of 91 microns. Thereafter, the edges of the fire-resistant glass pane are ground with a grinding wheel with an abrasive grain size of 39 microns. Finally, the edges are polished to a high gloss with a polish.
  • the fireproof glass pane is thermally tempered by heating the drawn and possibly pre-processed (cut, grind, profile, polish, etc.) glass sheet in an oven uniformly and homogeneously over the entire thickness and width of the glass pane.
  • the temperature to which it is heated depends, among other things, on the lower cooling temperature. The higher the lower cooling temperature, the higher the temperature for homogeneous heating (tempering temperature). In the present example, the tempering temperature is 700 ° C. After the glass sheet has been heated homogeneously to the tempering temperature, it is quenched to a temperature below the lower cooling temperature.
  • quenching maintains the atomic order on the surface of the glass pane (it is "frozen") and that Glass in the interior of the glass pane can relax into its equilibrium state and contract when cooled further.
  • This results in a compressive stress on the surface of the glass pane ie the glass pane is thermally pre-stressed. Cracks in the surface of the glass sheet are compressed by the generated compressive stress and prevented from opening, that is to say at the initiation of a fracture, under load.
  • the glass sheet is cooled, for example, with cold air (5 ° C) or a bath or with the aid of a metal plate.
  • the bias that can reach the glass for example, depends on the lower cooling point of the dilatometri see softening temperature, a temperature difference between tempering temperature and temperature of the cold air and a cooling rate.
  • the fire-resistant glass Due to the smaller coefficient of thermal expansion, the fire-resistant glass has a higher thermal stability and therefore can withstand greater temperature differences between the edge region and the center of the pane than the commercially available soda-lime glass.
  • the thermally toughened fire-resistant glass pane is inserted into a frame with the previously processed edges (profiled and / or ground and polished). The frame holds the fire-resistant glass pane. The fire protection glass pane is enclosed in the frame with a certain installation depth.
  • Example 4 laminated glass / insulating glass
  • the fire-resistant glass pane can be produced as a laminated glass with an intermediate layer of polyvinyl butyral (PVB). Two pre-stressed fire glass panes are connected by a plastic layer of PVB.
  • PVB polyvinyl butyral
  • another transparent carrier is present, for example a further transparent glass or plastic pane. The further transparent carrier is separated from the laminated glass by a gap which is filled with air or inert gas. This makes the laminated glass fire-resistant insulating glass.
  • another profile can also be ground or, if necessary, a corresponding cut can be dispensed with.
  • An alternative cut may correspond to a chamfer.
  • the profile may be bevelled or flattened and / or have the smoothest possible course without prominent corners or edges.
  • the profile extends over the entire circumference of the fire-resistant glass pane, ie along all edges, ie in full. It is also possible that the fire-resistant glass is fully ground and polished, but has no special profile, or that the edges are only partially ground, polished or profiled.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Glass Compositions (AREA)

Abstract

Vitre coupe-feu en verre sodocalcique présentant un point de recuit inférieur au-dessus de 520°C et, par exemple, un point de ramollissement supérieur ou égal à 640°C, ainsi qu'un coefficient de dilatation thermique inférieur à 85 x 10-7 K-1 , cette vitre étant thermiquement précontrainte. Il est ainsi possible d'obtenir une contrainte de compression accrue par rapport au verre sodocalcique du commerce, ce qui confère une plus grande stabilité à la vitre coupe-feu.
PCT/CH2014/000092 2013-07-04 2014-07-01 Vitre coupe-feu et vitrage coupe-feu WO2015000090A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12102013 2013-07-04
CH1210/13 2013-07-04

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Publication Number Publication Date
WO2015000090A2 true WO2015000090A2 (fr) 2015-01-08
WO2015000090A3 WO2015000090A3 (fr) 2015-04-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108046594A (zh) * 2017-12-15 2018-05-18 安徽恒春玻璃股份有限公司 一种高性能的单片防火玻璃
IT201800006000A1 (it) * 2018-06-04 2019-12-04 Metodo per realizzare un vetro di sicurezza e vetro cosi’ ottenuto

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764596A1 (fr) 1997-06-17 1998-12-18 Saint Gobain Vitrage Composition de verre silico-sodo-calcique et leurs applications
US20120234368A1 (en) 2011-03-09 2012-09-20 Saint-Gobain Glass France Substrate for photovoltaic cell

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH686304A5 (de) * 1994-07-08 1996-02-29 Vetrotech Ag Verfahren zum Herstellen von ebenen oder gewoelbten Glasplatten.
FR2765569B3 (fr) * 1997-07-01 1999-07-16 Saint Gobain Vitrage Composition de verre de type silico-sodo-calcique
DE10112859A1 (de) * 2001-03-16 2002-10-02 Hero Glas Veredelungs Gmbh Verbund-Sicherheitsglas und Verfahren zu dessen Herstellung
EP2571824B1 (fr) * 2010-05-20 2018-08-15 Saint-Gobain Glass France Substrats en verre pour applications à haute température

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764596A1 (fr) 1997-06-17 1998-12-18 Saint Gobain Vitrage Composition de verre silico-sodo-calcique et leurs applications
US20120234368A1 (en) 2011-03-09 2012-09-20 Saint-Gobain Glass France Substrate for photovoltaic cell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108046594A (zh) * 2017-12-15 2018-05-18 安徽恒春玻璃股份有限公司 一种高性能的单片防火玻璃
IT201800006000A1 (it) * 2018-06-04 2019-12-04 Metodo per realizzare un vetro di sicurezza e vetro cosi’ ottenuto
EP3584227A1 (fr) * 2018-06-04 2019-12-25 Carlo Hans Trivellone Procédé de fabrication d'un verre de sécurité et verre ainsi obtenu

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