EP1702130A1 - Multiple glazing with thermal and acoustic insulation - Google Patents

Multiple glazing with thermal and acoustic insulation

Info

Publication number
EP1702130A1
EP1702130A1 EP04805710A EP04805710A EP1702130A1 EP 1702130 A1 EP1702130 A1 EP 1702130A1 EP 04805710 A EP04805710 A EP 04805710A EP 04805710 A EP04805710 A EP 04805710A EP 1702130 A1 EP1702130 A1 EP 1702130A1
Authority
EP
European Patent Office
Prior art keywords
glazing
glass
sheets
multiple glazing
thickness
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP04805710A
Other languages
German (de)
French (fr)
Inventor
Marc Rehfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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 SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP1702130A1 publication Critical patent/EP1702130A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6707—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased acoustical insulation
    • 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
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
    • 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
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
    • B32B17/10055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet with at least one intermediate air space
    • 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
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • 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
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/263—Frames with special provision for insulation
    • 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
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds

Definitions

  • the present invention relates to a multiple glazing for acoustic protection mounted in a window comprising a first laminated glass panel and at least a second simple glass panel, parallel to the first panel and separated from the latter by a gas slide, the sheets of glass of the laminated panel being joined by at least one plastic film.
  • Such glazing is generally intended to equip buildings so as to reduce inside, the perception of outside noise, and to provide thermal protection.
  • thermal insulating glazing has become widespread. Most often, they consist of two glasses of the same thickness, generally between 2.5 and 4 mm, separated by a gas blade of 6 to 16 mm and bonded to their periphery using various sealants and possibly metal profiles.
  • glazing improves the comfort of living, working and leisure premises and significantly reduces heat loss.
  • glazing comprising a 4 mm glass, a 12 mm gas slide and a 10 mm glass constitutes an appropriate reference.
  • other types of glazing have already been proposed, such as multiple and laminated glazing.
  • these pose weight and volume problems compared to the windows in which they are integrated.
  • such glazing is produced with simple glass panels which generally have thicknesses greater than 8 mm, and laminated glass panels usually used which generally consist of glass sheets with a minimum thickness of 4 mm.
  • the invention therefore aims to provide a glazing to provide thermal and acoustic protection as effective as a standard insulating glazing or a multiple and laminated glazing, without having such a high weight.
  • the multiple glazing according to the invention is characterized in that the two glass sheets of the laminated glass panel each have a thickness of between 1.5 and 2.5 mm, and the single glass panel has a thickness of between 3 and 5 mm, and the weight of the glazing is less than at least 30% of the weight of an insulating glazing which comprises at least two sheets of single glass separated by a gas slide having the same thickness as that of the multiple glazing, l difference between the weighted sound reduction index R w of the multiple glazing and the weighted sound reduction index R w of said insulating glass with two sheets of single glass, not exceeding 3 dB. It will be noted that throughout the description, the numerical values given for the glass thicknesses are considered with an uncertainty to within 5%.
  • the weight of the multiple glazing is at least 40% less than the weight of the insulating glazing with two sheets of single glass.
  • the difference between the weighted sound reduction index R w of the multiple glazing and the weighted sound reduction index R w of said insulating glazing with two sheets of single glass does not exceed more than 2 dB, the indices may even be equivalent.
  • the gas blades have a thickness of between 6 and 20 mm, and preferably 12 mm.
  • the plastic film of the laminated glass panel has a thickness equal to or greater than 0.38 mm.
  • this plastic film is a film giving improved acoustic insulation properties.
  • a film fulfilling the criteria as defined in patents EP-B1-0 100 701 or EP-B1-0 844 075 is called a film with improved sound insulation properties, in particular for providing good acoustic protection against road noise. or solidiens.
  • the film is chosen such as a bar of
  • the plastic film is associated with at least one other film providing in particular additional properties than those ensuring the lamination.
  • at least one of the glass sheets of the glazing comprises at least one functional coating.
  • the glazing comprises a simple glass panel with a thickness of 3 mm, and a laminated glass panel with two glass sheets of 2.1 mm each of thickness.
  • it comprises a simple glass panel with a thickness of 4 mm, and a laminated glass panel with two glass sheets of 1.6 mm each.
  • a third embodiment of the glazing it comprises a simple glass panel with a thickness of 4 mm, and a laminated glass panel with two glass sheets of 2.1 mm each of thickness.
  • the glazings according to the invention are of dimensions less than 2 m 2 and are intended to equip buildings or vehicles, such as automobile glazing.
  • FIG. 1 shows a multiple glazing according to the invention
  • - Figure 2 illustrates the acoustic reduction index curves of different glazing units of the invention and of a reference insulating glazing unit.
  • the multiple glazing 1 illustrated in FIG. 1 comprises a laminated glass panel 10 and a single glass panel 20, these panels being separated by a gas knife 30 such as an air knife, are assembled in a leaktight manner. using means known to those skilled in the art.
  • the simple glass panel 20 has a thickness of between 3 and 5 mm.
  • the laminated glass panel consists of at least two glass sheets 11 and 12 separated and made integral with a plastic sheet13.
  • Each glass sheet has a thickness of between 1.5 and 2.5 mm.
  • the sheet 13 has a thickness of at least 0.38 mm.
  • This sheet is for example made of polyvinyl butyral (PVB) with improved sound insulation properties, or normal PVB having no such sound insulation properties.
  • the glazing can comprise, on one or more of the glass sheets, constituting functional coatings of the thin layer type, for example, for anti-scratch protection, UV protection, coloring of the glazing.
  • the plastic film 13 can be associated with at least one other film providing in particular additional properties (colors, anti-UV, light scattering, etc.).
  • the glazing of the invention has equivalent or substantially equivalent sound insulation properties, that is to say not exceeding a difference of 1 dB in acoustic reduction index, to a usual insulating glazing of reference which comprises at least two glass sheets separated by a gas plate identical to the gas plate 30, the weight of the glazing unit of the invention being at least 30% less than the weight of the reference insulating glazing unit, preferably less at least 40%. Note that the weight of the insert is considered negligible.
  • the insulating glazing of reference n ° 0 is a glazing of the type 4 (12) 10, that is to say comprising a sheet of glass of 4 mm, a blade of gas of 12 mm and a sheet of glass of 10 mm .
  • This reference glazing is particularly efficient because it has a weighted sound reduction index R w of 38 dB, compared to an insulating glazing of the same constitution but with 3 mm glass sheets and a gas plate of identical thickness, for which the attenuation index R w is only 32 dB.
  • R w weighted sound reduction index
  • the sound reduction index is measured according to ISO-140 in an installation conforming to said standard on glazing samples of dimensions 800 mm ⁇ 500 mm, and the weighted index R w then calculated according to the standard ISO-717.
  • Examples of glazing of the invention are as follows:
  • Glazing n ° 1 is of type 3 (12) 2,1-2,1: it includes a sheet of glass 20 of 3 mm, a gas slide 30 of 12 mm, two sheets of glass 11 and 12 of laminated 2.1 mm thick each separated by a sheet of PVB with improved acoustic insulation properties of 0.38 mm thick.
  • the glazings of the invention are referenced in this way, the PVB sheet for separating the laminate having a thickness of 0.38 mm.
  • Glazing n ° 2 is of type 4 (12) 1, 6-1, 6 with PVB with improved sound insulation properties.
  • Glazing n ° 3 is of type 4 (12) 2,1-2,1 with PVB with improved sound insulation properties.
  • Glazing n ° 4 is of type 4 (12) 2,1-2,1 with normal PVB.
  • Glazing n ° 5 is of type 3 (12) 1, 6-1, 6 with PVB with improved sound insulation properties.
  • the table below indicates at 21 ° C the sound reduction indices over the frequency range from 100 to 5000 Hz for glazing no. 0 to no. 5. Also given at the bottom of the table, according to ISO 717-1, the weighted attenuation index R w and the two adaptation terms C and C tr .
  • the curves in FIG. 2 reproduce the sound reduction index measurement points from 100 to 5000 Hz from the table above. It can be seen that the glazings of the invention have an acoustic insulation behavior which is just as effective as the reference insulating glazing.
  • the table below summarizes, for each glazing n ° 1 to n ° 5 and for the reference glazing n ° 0, the weighted sound reduction index values and the percentage reduction in weight of the glazing units of the invention relative to the reference glazing unit.
  • Glazing type N ° 2 or N ° 3 may be preferred, comprising simple 4 mm glass and including PVB with improved acoustic insulation properties. Furthermore, the glass thicknesses of the single glass panel (from 3 to 5 mm) and the laminated glass panel (from twice 1.5 mm to twice 2.5 mm) are such that the greatest ratio of extrema is equal to 1, 7 (either 5 / (2x1, 5) or either (2x2.5) / 3).
  • the imbalance in weight on one side of the glazing relative to the other side does not exceed a factor of 2, while for example the reference glazing has an imbalance ratio of 2.5 (10/4) .
  • the assembly of the simple glass panel to the laminated glass panel is more convenient, there is no need to position the heaviest panel below and wait for all of the joints ensuring the tightness and the mechanical strength is finished installing. In addition, handling the glazing is easier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention concerns a multiple glazing (1) comprising at least one laminated glass pane (10) consisting of two glass sheets (11, 12) having each a thickness ranging between 1.5 and 2.5 mm, and a single glass pane (20) having a thickness between 3 and 5 mm, the weight of the glazing being less than 30 wt. % of an insulating glazing including at least two single glass sheets separated by a gas gap having the same thickness as that of the multiple glazing (1), for sound attenuating index variation between the multiple glazing and the insulation glazing not exceeding 3 dB.

Description

VITRAGE MULTIPLE A PROPRIETES D'ISOLATION ACOUSTIQUE ET THERMIQUE MULTIPLE GLAZING WITH SOUND AND THERMAL INSULATION PROPERTIES
La présente invention concerne un vitrage multiple de protection acoustique monté dans une fenêtre comprenant un premier panneau de verre feuilleté et au moins un second panneau de verre simple, parallèle au premier panneau et séparé de celui-ci par une lame de gaz, les feuilles de verre du panneau feuilleté étant réunies par au moins un film plastique. De tels vitrages sont en général destinés à équiper des bâtiments de manière à diminuer à l'intérieur, la perception des bruits extérieurs, et à assurer une protection thermique. Depuis plusieurs années, dans de nombreux pays, l'utilisation de vitrages isolants thermiques s'est généralisée. Le plus souvent, ils sont constitués de deux verres de même épaisseur, généralement comprise entre 2,5 et 4 mm, séparés par une lame de gaz de 6 à 16 mm et collés à leur périphérie à l'aide de mastics variés et éventuellement de profilés métalliques. Pendant la période de chauffage, de tels vitrages améliorent le confort des locaux d'habitation, de travail et de loisir et diminuent sensiblement les déperditions thermiques. Sur le plan de l'isolement acoustique, un vitrage comprenant un verre de 4 mm, une lame de gaz de 12 mm et un verre de 10 mm constitue une référence appropriée. En vue de répondre à certaines exigences d'isolation thermique ou d'insonorisation, il a déjà été proposé d'autres types de vitrages, que sont les vitrages multiples et feuilletés. Cependant, ces derniers posent des problèmes de poids et de volume par rapport aux fenêtres dans lesquels ils sont intégrés. En particulier, de tels vitrages sont réalisés avec des panneaux de verre simple qui présentent généralement des épaisseurs supérieures à 8 mm, et des panneaux de verre feuilleté usuellement employés qui sont généralement constitués de feuilles de verre d'épaisseur minimum de 4 mm. Aussi on obtient des vitrages multiples très encombrants et présentant un poids supérieur à la moyenne, et en particulier supérieur au poids d'un vitrage isolant de référence, tel que cité plus haut. L'invention a donc pour but de fournir un vitrage pour assurer une protection thermique et acoustique aussi performante qu'un vitrage isolant de référence ou qu'un vitrage multiple et feuilleté, sans présenter un poids aussi élevé. Le vitrage multiple selon l'invention, est caractérisé en ce que les deux feuilles de verre du panneau de verre feuilleté présentent chacune une épaisseur comprise entre 1 ,5 et 2,5 mm, et le panneau de verre simple présente une épaisseur comprise entre 3 et 5 mm, et que le poids du vitrage est inférieur à au moins 30 % du poids d'un vitrage isolant qui comprend au moins deux feuilles de verre simple séparées par une lame de gaz présentant la même épaisseur que celle du vitrage multiple, l'écart entre l'indice d'affaiblissement acoustique pondéré Rw du vitrage multiple et l'indice d'affaiblissement acoustique pondéré Rw dudit vitrage isolant avec deux feuilles de verre simple, n'excédant pas plus de 3 dB. On notera que dans toute la description, les valeurs numériques données pour les épaisseurs de verre sont considérées avec une incertitude à 5% près. De préférence, le poids du vitrage multiple est inférieur d'au moins 40% du poids du vitrage isolant avec deux feuilles de verre simple. Avantageusement, l'écart entre l'indice d'affaiblissement acoustique pondéré Rw du vitrage multiple et l'indice d'affaiblissement acoustique pondéré Rw dudit vitrage isolant avec deux feuilles de verre simple, n'excède pas plus de 2 dB, les indices pouvant même être équivalents. Selon une caractéristique, les lames de gaz ont une épaisseur comprise entre 6 et 20 mm, et de préférence de 12 mm. Selon une autre caractéristique, le film plastique du panneau de verre feuilleté a une épaisseur égale ou supérieure à 0,38 mm. Avantageusement, ce film plastique est un film donnant des propriétés d'isolement acoustique améliorées. On nomme film à propriétés d'isolement acoustique améliorées, un film remplissant les critères tels que définis dans les brevets EP-B1-0 100 701 ou EP- B1-0 844 075, en particulier pour apporter une bonne protection acoustique contre les bruits routiers ou solidiens. Dans le brevet EP-B1-0 100 701 , le film est choisi tel qu'un barreau deThe present invention relates to a multiple glazing for acoustic protection mounted in a window comprising a first laminated glass panel and at least a second simple glass panel, parallel to the first panel and separated from the latter by a gas slide, the sheets of glass of the laminated panel being joined by at least one plastic film. Such glazing is generally intended to equip buildings so as to reduce inside, the perception of outside noise, and to provide thermal protection. For several years, in many countries, the use of thermal insulating glazing has become widespread. Most often, they consist of two glasses of the same thickness, generally between 2.5 and 4 mm, separated by a gas blade of 6 to 16 mm and bonded to their periphery using various sealants and possibly metal profiles. During the heating period, such glazing improves the comfort of living, working and leisure premises and significantly reduces heat loss. In terms of sound insulation, glazing comprising a 4 mm glass, a 12 mm gas slide and a 10 mm glass constitutes an appropriate reference. In order to meet certain requirements for thermal insulation or soundproofing, other types of glazing have already been proposed, such as multiple and laminated glazing. However, these pose weight and volume problems compared to the windows in which they are integrated. In particular, such glazing is produced with simple glass panels which generally have thicknesses greater than 8 mm, and laminated glass panels usually used which generally consist of glass sheets with a minimum thickness of 4 mm. Also we obtain multiple glazing very bulky and having a weight above average, and particular greater than the weight of a reference insulating glass, as mentioned above. The invention therefore aims to provide a glazing to provide thermal and acoustic protection as effective as a standard insulating glazing or a multiple and laminated glazing, without having such a high weight. The multiple glazing according to the invention is characterized in that the two glass sheets of the laminated glass panel each have a thickness of between 1.5 and 2.5 mm, and the single glass panel has a thickness of between 3 and 5 mm, and the weight of the glazing is less than at least 30% of the weight of an insulating glazing which comprises at least two sheets of single glass separated by a gas slide having the same thickness as that of the multiple glazing, l difference between the weighted sound reduction index R w of the multiple glazing and the weighted sound reduction index R w of said insulating glass with two sheets of single glass, not exceeding 3 dB. It will be noted that throughout the description, the numerical values given for the glass thicknesses are considered with an uncertainty to within 5%. Preferably, the weight of the multiple glazing is at least 40% less than the weight of the insulating glazing with two sheets of single glass. Advantageously, the difference between the weighted sound reduction index R w of the multiple glazing and the weighted sound reduction index R w of said insulating glazing with two sheets of single glass, does not exceed more than 2 dB, the indices may even be equivalent. According to one characteristic, the gas blades have a thickness of between 6 and 20 mm, and preferably 12 mm. According to another characteristic, the plastic film of the laminated glass panel has a thickness equal to or greater than 0.38 mm. Advantageously, this plastic film is a film giving improved acoustic insulation properties. A film fulfilling the criteria as defined in patents EP-B1-0 100 701 or EP-B1-0 844 075 is called a film with improved sound insulation properties, in particular for providing good acoustic protection against road noise. or solidiens. In patent EP-B1-0 100 701, the film is chosen such as a bar of
9 cm de longueur et de 3 cm de largeur, constitué d'un verre feuilleté comprenant deux feuilles de verre de 4 mm, d'épaisseur réunies par une couche de 2 mm de ce film, ait une fréquence critique qui diffère au plus de 35 % de celle d'un barreau de verre ayant la même longueur, la même largeur et 4 mm d'épaisseur. Dans le brevet EP-B1-0 844 075, le film intercalaire est retenu lorsqu'il possède un facteur de perte tanδ supérieur à 0,6 et un module de cisaillement G' inférieure à 2.107 N/cm2, dans un domaine de température compris entre 10 et 60°C, dans un domaine de fréquence compris entre 50 et 10 000 Hz. Ou bien, on préférera appliquer pour choisir un film à propriétés d'isolement acoustique améliorées les critères de sélection du brevet EP-B1- 0 387 148, lorsqu'il s'agira plutôt d'assurer une protection par rapport aux bruits aérodynamiques. Ce brevet européen propose d'utiliser un vitrage feuilleté dont l'intercalaire a un amortissement à la flexion v = Δf/fc supérieur à 0,15, la mesure étant effectuée en excitant par un choc un barreau de 9 cm de longueur et 3 cm de largeur fait d'un verre feuilleté où la résine est entre deux verres épais chacun de 4 mm, et en mesurant la fréquence de résonance du premier mode fc et la largeur du pic Δf à une amplitude AΛ/2 où A est l'amplitude maximum à la fréquence fc de telle sorte que son indice d'affaiblissement acoustique ne se différencie pour aucune des fréquences supérieures à 800 hertz de plus de 5 décibels d'un indice de référence augmentant de 9 dB par octave jusqu'à 2000 Hz et de 3 dB par octave aux fréquences supérieures. Selon une autre caractéristique de l'invention, le film plastique est associé à au moins un film autre apportant notamment des propriétés additionnelles que celles assurant le feuilletage. Avantageusement, l'une au moins des feuilles de verre du vitrage comporte au moins un revêtement fonctionnel. Selon un mode de réalisation du vitrage, il comporte un panneau de verre simple d'une épaisseur de 3 mm, et un panneau de verre feuilleté avec deux feuilles de verre de 2,1 mm chacune d'épaisseur. Selon un second mode de réalisation du vitrage, il comporte un panneau de verre simple d'une épaisseur de 4 mm, et un panneau de verre feuilleté avec deux feuilles de verre de 1 ,6 mm chacune d'épaisseur. Selon un troisième mode de réalisation du vitrage, il comporte un panneau de verre simple d'une épaisseur de 4 mm, et un panneau de verre feuilleté avec deux feuilles de verre de 2,1 mm chacune d'épaisseur. D'une manière générale, les vitrages selon l'invention sont de dimensions inférieures à 2 m2 et sont destinés à équiper des bâtiments ou des véhicules, tels que des vitrages d'automobiles. D'autres avantages et caractéristiques de l'invention vont à présent être décrits plus en détail en regard des dessins annexés sur lesquels : - la figure 1 représente un vitrage multiple selon l'invention; - la figure 2 illustre les courbes d'indice d'affaiblissement acoustique de différents vitrages de l'invention et d'un vitrage isolant de référence. Le vitrage multiple 1 illustré sur la figure 1 comporte un panneau de verre feuilleté 10 et un panneau de verre simple 20, ces panneaux étant séparés par une lame de gaz 30 telle qu'une lame d'air, est assemblés de manière étanche à l'aide de moyens connus de l'homme du métier. Le panneau de verre simple 20 a une épaisseur comprise entre 3 et 5 mm. Le panneau de verre feuilleté est constitué d'au moins deux feuilles de verre 1 1 et 12 séparées et rendues solidaires d'une feuille en matière plastique13. Chaque feuille de verre présente une épaisseur comprise entre 1 ,5 et 2,5 mm. La feuille 13 présente une épaisseur d'au moins 0,38 mm. Cette feuille est par exemple en polyvinylbutyral (PVB) à propriétés d'isolement acoustique améliorées, ou en PVB normal ne présentant pas de telles propriétés d'isolement acoustique. Bien entendu, le vitrage peut comprendre sur l'une ou plusieurs des feuilles de verre le constituant des revêtements fonctionnels du type couches minces, par exemple, pour une protection anti-rayures, une protection contre les UV, une coloration du vitrage. En outre, le film plastique 13 peut être associé à au moins un film autre apportant notamment des propriétés additionnelles (couleurs, anti- UV, diffusion de la lumière, etc.). Le vitrage de l'invention présente des propriétés d'isolement acoustique équivalentes ou sensiblement équivalentes, c'est-à-dire ne dépassant pas un écart de 1 dB en indice d'affaiblissement acoustique, à un vitrage isolant usuel de référence qui comprend au moins deux feuilles de verre séparées par une lame de gaz identique à la lame de gaz 30, le poids du vitrage de l'invention étant inférieur d'au moins 30 % au poids du vitrage isolant de référence, de préférence inférieure d'au moins 40%. On notera que le poids de l'intercalaire est considéré comme négligeable. Le vitrage isolant de référence n°0 est un vitrage du type 4 (12) 10, c'est-à- dire comportant une feuille de verre de 4 mm, une lame de gaz de 12 mm et une feuille de verre de 10 mm. Ce vitrage de référence est particulièrement performant car présentant un indice d'affaiblissement acoustique pondéré Rw de 38 dB, en comparaison à un vitrage isolant de même constitution mais avec des feuilles de verre de 3 mm et une lame de gaz d'épaisseur identique, pour lequel l'indice d'affaiblissement Rw n'est que de 32 dB. On rappelle que l'indice d'affaiblissement acoustique est mesuré selon la norme ISO-140 dans une installation conforme à ladite norme sur des échantillons de vitrage de dimensions 800 mm x 500 mm, et l'indice pondéré Rw calculé ensuite selon la norme ISO-717. Des exemples de vitrage de l'invention sont les suivants :9 cm in length and 3 cm in width, consisting of a laminated glass comprising two sheets of glass of 4 mm, of thickness joined by a layer of 2 mm of this film, has a critical frequency which differs at most 35 % of that of a glass rod having the same length, the same width and 4 mm thick. In patent EP-B1-0 844 075, the interlayer film is retained when it has a loss factor tanδ greater than 0.6 and a shear modulus G 'less than 2.10 7 N / cm 2 , in a range of temperature between 10 and 60 ° C, in a frequency range between 50 and 10 000 Hz. Or, it will be preferable to apply, in order to choose a film with improved sound insulation properties, the selection criteria of patent EP-B1-0 387 148, when it is more a question of ensuring protection against aerodynamic noise. This European patent proposes to use a laminated glazing whose interlayer has a flexural damping v = Δf / f c greater than 0.15, the measurement being carried out by exciting a rod 9 cm long and 3 cm of width made of a laminated glass where the resin is between two thick glasses each of 4 mm, and by measuring the resonance frequency of the first mode f c and the width of the peak Δf at an amplitude AΛ / 2 where A is l maximum amplitude at frequency f c so that its sound reduction index does not differ for any of the frequencies above 800 hertz by more than 5 decibels from a reference index increasing by 9 dB per octave up to 2000 Hz and 3 dB per octave at higher frequencies. According to another characteristic of the invention, the plastic film is associated with at least one other film providing in particular additional properties than those ensuring the lamination. Advantageously, at least one of the glass sheets of the glazing comprises at least one functional coating. According to one embodiment of the glazing, it comprises a simple glass panel with a thickness of 3 mm, and a laminated glass panel with two glass sheets of 2.1 mm each of thickness. According to a second embodiment of the glazing, it comprises a simple glass panel with a thickness of 4 mm, and a laminated glass panel with two glass sheets of 1.6 mm each. According to a third embodiment of the glazing, it comprises a simple glass panel with a thickness of 4 mm, and a laminated glass panel with two glass sheets of 2.1 mm each of thickness. In general, the glazings according to the invention are of dimensions less than 2 m 2 and are intended to equip buildings or vehicles, such as automobile glazing. Other advantages and characteristics of the invention will now be described in more detail with reference to the accompanying drawings in which: - Figure 1 shows a multiple glazing according to the invention; - Figure 2 illustrates the acoustic reduction index curves of different glazing units of the invention and of a reference insulating glazing unit. The multiple glazing 1 illustrated in FIG. 1 comprises a laminated glass panel 10 and a single glass panel 20, these panels being separated by a gas knife 30 such as an air knife, are assembled in a leaktight manner. using means known to those skilled in the art. The simple glass panel 20 has a thickness of between 3 and 5 mm. The laminated glass panel consists of at least two glass sheets 11 and 12 separated and made integral with a plastic sheet13. Each glass sheet has a thickness of between 1.5 and 2.5 mm. The sheet 13 has a thickness of at least 0.38 mm. This sheet is for example made of polyvinyl butyral (PVB) with improved sound insulation properties, or normal PVB having no such sound insulation properties. Of course, the glazing can comprise, on one or more of the glass sheets, constituting functional coatings of the thin layer type, for example, for anti-scratch protection, UV protection, coloring of the glazing. In addition, the plastic film 13 can be associated with at least one other film providing in particular additional properties (colors, anti-UV, light scattering, etc.). The glazing of the invention has equivalent or substantially equivalent sound insulation properties, that is to say not exceeding a difference of 1 dB in acoustic reduction index, to a usual insulating glazing of reference which comprises at least two glass sheets separated by a gas plate identical to the gas plate 30, the weight of the glazing unit of the invention being at least 30% less than the weight of the reference insulating glazing unit, preferably less at least 40%. Note that the weight of the insert is considered negligible. The insulating glazing of reference n ° 0 is a glazing of the type 4 (12) 10, that is to say comprising a sheet of glass of 4 mm, a blade of gas of 12 mm and a sheet of glass of 10 mm . This reference glazing is particularly efficient because it has a weighted sound reduction index R w of 38 dB, compared to an insulating glazing of the same constitution but with 3 mm glass sheets and a gas plate of identical thickness, for which the attenuation index R w is only 32 dB. It is recalled that the sound reduction index is measured according to ISO-140 in an installation conforming to said standard on glazing samples of dimensions 800 mm × 500 mm, and the weighted index R w then calculated according to the standard ISO-717. Examples of glazing of the invention are as follows:
• Le vitrage n° 1 est du type 3 (12) 2,1-2,1 : il comprend une feuille de verre 20 de 3 mm, une lame de gaz 30 de 12 mm, deux feuilles de verre 11 et 12 du feuilleté de 2,1 mm chacune d'épaisseur séparées par une feuille de PVB à propriétés d'isolement acoustique améliorées de 0,38 mm d'épaisseur. Dans la suite de la description, les vitrages de l'invention sont référencés de cette manière, la feuille en PVB de séparation du feuilleté présentant une épaisseur de 0,38 mm.• Glazing n ° 1 is of type 3 (12) 2,1-2,1: it includes a sheet of glass 20 of 3 mm, a gas slide 30 of 12 mm, two sheets of glass 11 and 12 of laminated 2.1 mm thick each separated by a sheet of PVB with improved acoustic insulation properties of 0.38 mm thick. In the following description, the glazings of the invention are referenced in this way, the PVB sheet for separating the laminate having a thickness of 0.38 mm.
• Le vitrage n° 2 est du type 4 (12) 1 ,6-1 ,6 avec du PVB à propriétés d'isolement acoustique améliorées.• Glazing n ° 2 is of type 4 (12) 1, 6-1, 6 with PVB with improved sound insulation properties.
• Le vitrage n° 3 est du type 4 (12) 2,1-2,1 avec du PVB à propriétés d'isolement acoustique améliorées. • Le vitrage n° 4 est du type 4 (12) 2,1-2,1 avec du PVB normal.• Glazing n ° 3 is of type 4 (12) 2,1-2,1 with PVB with improved sound insulation properties. • Glazing n ° 4 is of type 4 (12) 2,1-2,1 with normal PVB.
• Le vitrage n°5 est du type 3 (12) 1 ,6-1 ,6 avec du PVB à propriétés d'isolement acoustique améliorées. Le tableau ci-dessous indique à 21 °C les indices d'affaiblissement acoustique sur la plage de fréquence de 100 à 5000 Hz des vitrages n°0 à n°5. Sont donnés également en bas de tableau, selon la norme ISO 717-1 , l'indice d'affaiblissement pondéré Rwet les deux termes d'adaptation C et Ctr.• Glazing n ° 5 is of type 3 (12) 1, 6-1, 6 with PVB with improved sound insulation properties. The table below indicates at 21 ° C the sound reduction indices over the frequency range from 100 to 5000 Hz for glazing no. 0 to no. 5. Also given at the bottom of the table, according to ISO 717-1, the weighted attenuation index R w and the two adaptation terms C and C tr .
Les courbes de la figure 2 reproduisent les points de mesure d'indice d'affaiblissement acoustique de 100 à 5000 Hz du tableau ci-dessus. On constate que les vitrages de l'invention ont un comportement d'isolement acoustique tout 10 aussi performant que le vitrage isolant de référence. Le tableau ci-après résume, pour chacun des vitrages n° 1 à n° 5 et pour le vitrage de référence n° 0 les valeurs d'indice d'affaiblissement acoustique pondéré et la réduction en pourcentage de poids des vitrages de l'invention par rapport au vitrage de référence.The curves in FIG. 2 reproduce the sound reduction index measurement points from 100 to 5000 Hz from the table above. It can be seen that the glazings of the invention have an acoustic insulation behavior which is just as effective as the reference insulating glazing. The table below summarizes, for each glazing n ° 1 to n ° 5 and for the reference glazing n ° 0, the weighted sound reduction index values and the percentage reduction in weight of the glazing units of the invention relative to the reference glazing unit.
On constate qu'en réduisant le poids du vitrage de plus de 30%, voire d'au moins 40%, par rapport au poids d'un vitrage isolant usuel de référence, on obtient un indice d'affaiblissement acoustique tout aussi comparable. On pourra préférer les vitrages du type N°2 ou N°3 comportant le verre simple de 4 mm et incluant du PVB à propriétés d'isolement acoustique améliorées. Par ailleurs, les épaisseurs de verre du panneau de verre simple (de 3 à 5 mm) et du panneau de verre feuilleté (de deux fois 1 ,5 mm à deux fois 2,5 mm) sont telles que le plus grand rapport des extrema est égal à 1 ,7 (soit 5/(2x1 ,5) ou soit (2x2,5)/3). Par conséquent, le déséquilibre en poids d'un côté du vitrage par rapport à l'autre côté n'excède pas un facteur 2, alors que par exemple le vitrage de référence présente un rapport de déséquilibre de 2,5 (10/4). Aussi, l'assemblage du panneau de verre simple au panneau de verre feuilleté est plus commode, il n'y a pas nécessité à positionner le panneau le plus lourd en dessous et à attendre que l'ensemble des joints assurant l'étanchéité et la tenue mécanique soit fini de poser. En outre, la manipulation du vitrage est plus facile. It can be seen that by reducing the weight of the glazing by more than 30%, or even by at least 40%, relative to the weight of a standard reference insulating glazing, an equally comparable sound reduction index is obtained. Glazing type N ° 2 or N ° 3 may be preferred, comprising simple 4 mm glass and including PVB with improved acoustic insulation properties. Furthermore, the glass thicknesses of the single glass panel (from 3 to 5 mm) and the laminated glass panel (from twice 1.5 mm to twice 2.5 mm) are such that the greatest ratio of extrema is equal to 1, 7 (either 5 / (2x1, 5) or either (2x2.5) / 3). Consequently, the imbalance in weight on one side of the glazing relative to the other side does not exceed a factor of 2, while for example the reference glazing has an imbalance ratio of 2.5 (10/4) . Also, the assembly of the simple glass panel to the laminated glass panel is more convenient, there is no need to position the heaviest panel below and wait for all of the joints ensuring the tightness and the mechanical strength is finished installing. In addition, handling the glazing is easier.

Claims

REVENDICATIONS 1. Vitrage multiple à propriétés de protection thermique et acoustique (1 ) monté dans une fenêtre comprenant un premier panneau de verre feuilleté (10) et au moins un second panneau de verre simple (20), parallèle au premier panneau et séparé de celui-ci par une lame de gaz, le panneau de verre feuilleté (10) comprenant au moins deux feuilles de verre (11 , 12) réunies par au moins un film plastique (13), caractérisé en ce que les deux feuilles de verre (11 , 12) du panneau de verre feuilleté (10) présentent chacune une épaisseur comprise entre 1 ,5 et 2,5 mm, et le panneau de verre simple (20) présente une épaisseur comprise entre 3 et 5 mm, et que le poids du vitrage est inférieur à au moins 30 % du poids d'un vitrage isolant qui comprend au moins deux feuilles de verre simple séparées par une lame de gaz présentant la même épaisseur que celle du vitrage multiple (1 ), l'écart entre l'indice d'affaiblissement acoustique pondéré Rw du vitrage multiple et l'indice d'affaiblissement acoustique pondéré Rw dudit vitrage isolant avec deux feuilles de verre simple, n'excédant pas plus de 3 dB. CLAIMS 1. Multiple glazing with thermal and acoustic protection properties (1) mounted in a window comprising a first laminated glass panel (10) and at least a second simple glass panel (20), parallel to the first panel and separate from that -this by a gas slide, the laminated glass panel (10) comprising at least two glass sheets (11, 12) joined by at least one plastic film (13), characterized in that the two glass sheets (11 , 12) of the laminated glass panel (10) each have a thickness of between 1.5 and 2.5 mm, and the simple glass panel (20) has a thickness of between 3 and 5 mm, and the weight of the glazing is less than at least 30% of the weight of an insulating glazing which comprises at least two sheets of single glass separated by a gas plate having the same thickness as that of multiple glazing (1), the difference between the index weighted sound reduction R w of the glass multiple ge and the weighted sound reduction index R w of said insulating glass with two sheets of single glass, not exceeding 3 dB.
2. Vitrage multiple selon la revendication 1 , caractérisé en ce que le poids du vitrage multiple est inférieur d'au moins 40% du poids du vitrage isolant avec deux feuilles de verre simple. 2. Multiple glazing according to claim 1, characterized in that the weight of the multiple glazing is at least 40% less than the weight of the insulating glazing with two sheets of single glass.
3. Vitrage multiple selon la revendication 1 ou 2, caractérisé en ce que l'écart entre l'indice d'affaiblissement acoustique pondéré Rw du vitrage multiple et l'indice d'affaiblissement acoustique pondéré Rw dudit vitrage isolant avec deux feuilles de verre simple, n'excède pas plus de 2 dB. 3. Multiple glazing according to claim 1 or 2, characterized in that the difference between the weighted sound reduction index R w of the multiple glazing and the weighted sound reduction index R w of said insulating glazing with two sheets of single glass, does not exceed more than 2 dB.
4. Vitrage multiple selon l'une quelconque des revendications précédentes, caractérisé en ce que l'indice d'affaiblissement acoustique pondéré Rw du vitrage multiple et l'indice d'affaiblissement acoustique pondéré Rw dudit vitrage isolant avec deux feuilles de verre simple sont équivalents. 4. Multiple glazing according to any one of the preceding claims, characterized in that the weighted sound reduction index R w of the multiple glazing and the weighted sound reduction index R w of said insulating glazing with two sheets of single glass are equivalent.
5. Vitrage multiple selon l'une quelconque des revendications précédentes, caractérisé en ce que les lames de gaz ont une épaisseur comprise entre 6 et 20 mm, et de préférence de 12 mm. 5. Multiple glazing according to any one of the preceding claims, characterized in that the gas blades have a thickness of between 6 and 20 mm, and preferably 12 mm.
6. Vitrage multiple selon l'une quelconque des revendications précédentes, caractérisé en ce que le film plastique (13) du panneau de verre feuilleté a une épaisseur égale ou supérieure à 0,38 mm. 6. Multiple glazing according to any one of the preceding claims, characterized in that the plastic film (13) of the laminated glass panel has a thickness equal to or greater than 0.38 mm.
7. Vitrage multiple selon l'une quelconque des revendications précédentes, caractérisé en ce que le film plastique (13) est un film donnant des propriétés d'isolement acoustique améliorées. 7. Multiple glazing according to any one of the preceding claims, characterized in that the plastic film (13) is a film giving improved acoustic insulation properties.
8. Vitrage multiple selon l'une des revendications 1 à 6, caractérisé en ce que le film plastique (13) est associé à au moins un film autre apportant notamment des propriétés additionnelles. 8. Multiple glazing according to one of claims 1 to 6, characterized in that the plastic film (13) is associated with at least one other film providing in particular additional properties.
9. Vitrage multiple selon l'une quelconque des revendications précédentes, caractérisé en ce que l'une au moins des feuilles de verre (11 , 12, 20) du vitrage comporte au moins un revêtement fonctionnel. 9. Multiple glazing according to any one of the preceding claims, characterized in that at least one of the glass sheets (11, 12, 20) of the glazing comprises at least one functional coating.
10. Vitrage multiple selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un panneau de verre simple (20) d'une épaisseur de 3 mm, et un panneau de verre feuilleté (10) avec deux feuilles de verre (11 , 12) de 2,1 mm chacune d'épaisseur. 10. Multiple glazing according to any one of the preceding claims, characterized in that it comprises a single glass panel (20) with a thickness of 3 mm, and a laminated glass panel (10) with two glass sheets (11, 12) of 2.1 mm each thick.
11. Vitrage multiple selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comporte un panneau de verre simple (20) d'une épaisseur de 4 mm, et un panneau de verre feuilleté (10) avec deux feuilles de verre (11 , 12) de 1 ,6 mm chacune d'épaisseur. 11. Multiple glazing according to any one of claims 1 to 6, characterized in that it comprises a single glass panel (20) with a thickness of 4 mm, and a laminated glass panel (10) with two sheets glass (11, 12) 1, 6 mm each thick.
12. Vitrage multiple selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comporte un panneau de verre simple (20) d'une épaisseur de 4 mm, et un panneau de verre feuilleté (10) avec deux feuilles de verre (11 , 12) de 2,1 mm chacune d'épaisseur. 12. Multiple glazing according to any one of claims 1 to 6, characterized in that it comprises a single glass panel (20) with a thickness of 4 mm, and a laminated glass panel (10) with two sheets 2.1 mm glass (11, 12) each.
13. Vitrage multiple selon l'une quelconque des revendications précédentes pour la réalisation de vitrages destinés à équiper des bâtiments. 13. Multiple glazing according to any one of the preceding claims for the production of glazing intended to equip buildings.
14. Vitrage multiple selon l'une quelconque des revendications 1 à 12 pour la réalisation de vitrages de véhicules, en particulier de vitrages d'automobiles. 14. Multiple glazing according to any one of claims 1 to 12 for the production of vehicle glazing, in particular automobile glazing.
EP04805710A 2004-01-09 2004-12-15 Multiple glazing with thermal and acoustic insulation Withdrawn EP1702130A1 (en)

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FR0400154A FR2864988B1 (en) 2004-01-09 2004-01-09 MULTIPLE GLAZING WITH ACOUSTIC AND THERMAL INSULATION PROPERTIES
PCT/FR2004/003229 WO2005075784A1 (en) 2004-01-09 2004-12-15 Multiple glazing with thermal and acoustic insulation

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GB0600022D0 (en) * 2006-01-03 2006-02-08 Pilkington Plc Glazings
WO2010010156A1 (en) 2008-07-24 2010-01-28 Agc Flat Glass Europe Sa Insulating multiple glazing
CN102031919A (en) * 2010-11-11 2011-04-27 贵州大行节能咨询服务有限公司 Three/four-millimeter thin glass film hollow safety glass
FR3057900A1 (en) * 2016-10-26 2018-04-27 Saint-Gobain Glass France MULTIPLE GLAZING COMPRISING AT LEAST ONE SHEET OF THIN GLASS COATED WITH A LOW EMISSIVITY STACK
EP4065792A1 (en) * 2019-11-26 2022-10-05 VKR Holding A/S A roof window with an acoustic laminated vacuum insulated glass unit

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IT1027029B (en) * 1974-01-29 1978-11-20 Guaverbel Mecaniver LAMINATED GLASS
FR2529609A1 (en) * 1982-07-05 1984-01-06 Saint Gobain Vitrage MULTIPLE GLAZING WITH THERMAL AND ACOUSTIC INSULATION PROPERTIES
GB2144792B (en) * 1983-08-10 1986-09-17 Pilkington Brothers Plc Sound insulating double glazing
FR2644112B1 (en) * 1989-03-10 1991-05-10 Saint Gobain Vitrage
FR2755685B1 (en) * 1996-11-14 1999-01-08 Saint Gobain Vitrage MULTIPLE GLAZING WITH SOUND AND THERMAL INSULATION PROPERTIES
EP0844075B2 (en) 1996-11-26 2016-05-25 Saint-Gobain Glass France Use of a laminated glazing to dampen solid-transmitted vibrations in a vehicle

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CA2552813A1 (en) 2005-08-18
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