FR2697829A1 - Anti-splinter laminated glass - for armoured vehicles consists of annealed or tempered glass sheet interleaved with resin layer and having layer of elastic energy absorbing plastic eg polyvinylbutyral on cabin surface. - Google Patents
Anti-splinter laminated glass - for armoured vehicles consists of annealed or tempered glass sheet interleaved with resin layer and having layer of elastic energy absorbing plastic eg polyvinylbutyral on cabin surface. Download PDFInfo
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- FR2697829A1 FR2697829A1 FR9213584A FR9213584A FR2697829A1 FR 2697829 A1 FR2697829 A1 FR 2697829A1 FR 9213584 A FR9213584 A FR 9213584A FR 9213584 A FR9213584 A FR 9213584A FR 2697829 A1 FR2697829 A1 FR 2697829A1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- 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
- B32B17/10743—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 acrylate (co)polymers or salts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
- F41H5/04—Plate construction composed of more than one layer
- F41H5/0407—Transparent bullet-proof laminatesinformative reference: layered products essentially comprising glass in general B32B17/06, e.g. B32B17/10009; manufacture or composition of glass, e.g. joining glass to glass C03; permanent multiple-glazing windows, e.g. with spacing therebetween, E06B3/66
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
VITRAGE FEUILLETE ANTI-ECLATS
L'invention concerne un vitrage feuilleté pour véhicule motorisé du type véhicule blindé, présentant une bonne résistance aux impacts, notamment dus à des éclats d'obus.GLAZING SHEET ANTI-CHIPS
The invention relates to laminated glazing for a motorized vehicle of the armored vehicle type, having good resistance to impacts, in particular due to shrapnel.
Des vitrages résistant à des impacts sont déjà connus dans l'art antérieur. Ces vitrages doivent non seulement présenter une bonne résistance aux impacts violents qu'ils subissent mais également éviter au maximum la projection d'éclats de verre provenant de la feuille de verre orientée vers l'habitacle du véhicule. En effet, ce type d'éclats qui apparaît lors d'un choc sur la face externe du véhicule peut être très dangereux pour les occupants du véhicule. Glazing resistant to impacts is already known in the prior art. These glazings must not only have good resistance to the violent impacts they undergo but also avoid as much as possible the projection of shards of glass coming from the sheet of glass oriented towards the passenger compartment of the vehicle. Indeed, this type of splinters which appears during an impact on the external face of the vehicle can be very dangerous for the occupants of the vehicle.
Un vitrage de ce type est par exemple décrit dans le brevet US 4,125,669. Ce brevet décrit un vitrage composé d'une feuille de verre et d'une feuille de polycarbonate orientée vers l'habitacle pour éviter la projection d'éclats. La feuille de verre est quant à elle très épaisse pour résister aux chocs. Ce vitrage a l'inconvénient d'être très lourd. Un autre inconvénient de ce vitrage est lié à la différence importante entre les coefficients de dilatation des deux matériaux. Lors de variations de température, on assiste soit à un décollement soit à une rupture du verre. A glazing of this type is for example described in US Pat. No. 4,125,669. This patent describes a glazing composed of a glass sheet and a polycarbonate sheet oriented towards the passenger compartment to avoid the projection of shards. The glass sheet is very thick to withstand impact. This glazing has the disadvantage of being very heavy. Another drawback of this glazing is linked to the significant difference between the coefficients of expansion of the two materials. During temperature variations, there is either a detachment or a rupture of the glass.
D'autres brevets tel que le brevet US 4,312,903 décrivent des vitrages multicouches, composés de verre de polycarbonate et de résines solides. L'épaisseur de ces vitrages est généralement très importante et le problème des éclats de verre n'est jamais très bien résolu puisque la cohésion du polycarbonate sur une feuille de verre n'est jamais parfaite. Other patents such as US Pat. No. 4,312,903 describe multilayer glazing, composed of polycarbonate glass and solid resins. The thickness of these glazings is generally very large and the problem of broken glass is never very well resolved since the cohesion of the polycarbonate on a sheet of glass is never perfect.
Le brevet US 5,002,820 décrit également un vitrage de ce type qui évite l'utilisation de polycarbonate et se compose essentiellement de deux feuilles de verre entre lesquelles est collée une résine solide du type polyuréthane ou ionomère. La feuille de verre orientée vers l'ha- bitacle doit avoir une épaisseur inférieure à 1,5 mm de façon à éviter la formation d'éclats dangereux lors dlun impact. Une telle structure n'est efficace que pour des impacts dus à des objets possédant une faible énergie. Pour des projectiles possédant une énergie plus importante, des éclats sont observés sur la face interne du vitrage et constituent alors un risque pour les passagers. US Patent 5,002,820 also describes a glazing of this type which avoids the use of polycarbonate and essentially consists of two sheets of glass between which is bonded a solid resin of the polyurethane or ionomer type. The glass sheet oriented towards the passenger compartment must be less than 1.5 mm thick so as to avoid the formation of dangerous splinters on impact. Such a structure is only effective for impacts due to objects with low energy. For projectiles having a higher energy, splinters are observed on the internal face of the glazing and then constitute a risk for the passengers.
L'invention a pour but un vitrage polir véhicule motorisé présentant une très bonne résistance aux chocs, notamment dus à des éclats d'obus et assurant une protection totale pour les occupants du véhicule en évitant la projection d'éclats de verre, depuis la face interne du vitrage lors d'un choc. The object of the invention is to polish a glazing for a motorized vehicle having very good impact resistance, in particular due to shrapnel and ensuring total protection for the occupants of the vehicle by avoiding the projection of shards of glass from the face. internal glazing during an impact.
Selon l'invention, ces problèmes sont résolus par un vitrage feuilleté pour véhicule motorisé, notamment pour véhicule blindé, comportant au moins deux feuilles de verre ayant subi un traitement de recuit ou un traitement de trempe thermique ou chimique séparées par un intercalaire à base d'une résine solide d'une épaisseur comprise entre 1,5 et 10 mm, la feuille de verre faisant face à l'impact ayant une épaisseur comprise entre 4 et 10 mm et la feuille de verre destinée à être orientée vers l'habitacle ayant une épaisseur comprise entre 1 et 6 mm et étant revêtue d'une couche anti-éclats ayant des propriétés d'élasticité et d'absorbeur d'énergie, comprenant au moins une couche de matière plastique. According to the invention, these problems are solved by a laminated glazing for a motorized vehicle, in particular for an armored vehicle, comprising at least two sheets of glass having undergone an annealing treatment or a thermal or chemical toughening treatment separated by an interlayer based on '' a solid resin with a thickness between 1.5 and 10 mm, the glass sheet facing the impact having a thickness between 4 and 10 mm and the glass sheet intended to be oriented towards the passenger compartment having a thickness of between 1 and 6 mm and being coated with a shatterproof layer having elasticity and energy absorbing properties, comprising at least one layer of plastic material.
Selon un mode préféré de l'invention la couche antiéclats est une couche composite comportant un film de polyvinylbutyral d'une épaisseur inférieure à 1 mm et de préférence égale à 0,76 mm et une couche de polyester revêtue de polysiloxane d'une épaisseur inférieure à 0,5 mm et de préférence égale à 0,18 mm. According to a preferred embodiment of the invention, the anti-splinter layer is a composite layer comprising a polyvinyl butyral film with a thickness of less than 1 mm and preferably equal to 0.76 mm and a polyester layer coated with polysiloxane with a thickness of less at 0.5 mm and preferably equal to 0.18 mm.
La couche anti-éclats peut également être formée d'au moins une couche à base de polyuréthane. The anti-splinter layer can also be formed of at least one layer based on polyurethane.
J
J
De façon préférée, la feuille de verre orientée vers l'habitacle et portant la couche "anti-éclats" a une épaisseur de 2 mm.J
J
Preferably, the glass sheet oriented towards the passenger compartment and carrying the "anti-splinter" layer has a thickness of 2 mm.
La feuille de verre dirigée vers l'extérieur, c'està-dire la feuille de verre directement en contact avec le projectile a une épaisseur de 4 mm. L'intercalaire disposé entre les deux feuilles de verre précédemment décrites est du polyvinylbutyral. Cette résine peut également être choisie parmi la famille des résines ionomères telles que celles décrites dans le brevet US 4,799,346 et présente alors une épaisseur d'au moins 4 mm. The glass sheet facing outwards, that is to say the glass sheet directly in contact with the projectile, has a thickness of 4 mm. The interlayer disposed between the two glass sheets described above is polyvinyl butyral. This resin can also be chosen from the family of ionomer resins such as those described in US Pat. No. 4,799,346 and then has a thickness of at least 4 mm.
Le vitrage ainsi décrit présente des caractéristiques ballistiques satisfaisantes pour une utilisation comme vitrage résistant aux éclats d'obus pour véhicule motorisé. The glazing thus described has satisfactory ballistic characteristics for use as glazing resistant to shrapnel for motor vehicles.
De plus, il ne présente pas de risques pour les passagers du véhicule lorsqu'il reçoit des projectiles. En effet, les projectiles sont arrêtés par le vitrage et lors des impacts, il n'apparaît aucune projection d'éclats de verre au sein de l'habitacle. En cas de bris du vitrage, les éclats sont maintenus dans le vitrage grâce aux propriétés d'élasticité et d'absorbeur d'énergie de la couche antiéclats.In addition, it poses no risk to the passengers of the vehicle when it receives projectiles. In fact, the projectiles are stopped by the glazing and during impacts, there does not appear any projection of shards of glass within the passenger compartment. In the event of breakage of the glazing, the fragments are maintained in the glazing thanks to the elasticity and energy absorbing properties of the anti-splinter layer.
Par ailleurs, ces propriétés sont atteintes avec un vitrage dont l'épaisseur et donc le poids sont peu élevés. Furthermore, these properties are achieved with a glazing whose thickness and therefore the weight are low.
D'autre part, l'utilisation de polyvinylbutyral comme résine solide intercalaire est très intéressante car il n'est pas nécessaire d'utiliser une colle ou une solution de primage pour son adhésion sur le verre. De plus, la cohésion verre-polyvinylbutyral est très bonne. On the other hand, the use of polyvinyl butyral as an intermediate solid resin is very advantageous since it is not necessary to use an adhesive or a priming solution for its adhesion to the glass. In addition, the glass-polyvinyl butyral cohesion is very good.
Il est possible pour certaines applications de renforcer les propriétés ballistiques par augmentation des épaisseurs et/ou des composants du vitrage. Le poids du vitrage est alors bien entendu plus important. It is possible for certain applications to reinforce the ballistic properties by increasing the thicknesses and / or the components of the glazing. The weight of the glazing is then of course greater.
Dans une variante selon l'invention, la feuille de verre orientée vers l'extérieur, susceptible d'être en contact direct avec le projectile est remplacée par une structure feuilletée composée d'au moins deux feuilles de verre ayant subi un traitement de recuit ou un traitement de trempe thermique ou chimique et d'une couche intercalaire à base d'une résine solide. In a variant according to the invention, the outwardly oriented glass sheet capable of being in direct contact with the projectile is replaced by a laminated structure composed of at least two glass sheets having undergone an annealing treatment or a thermal or chemical quenching treatment and an interlayer based on a solid resin.
Selon un mode préféré, les deux feuilles de verre ont une épaisseur d'au moins 4 mm et la résine solide est du polyvinylbutyral et a une épaisseur de 0,76 mm. According to a preferred embodiment, the two glass sheets have a thickness of at least 4 mm and the solid resin is polyvinyl butyral and has a thickness of 0.76 mm.
D'autres détails et caractéristiques avantageuses de l'invention ressortent ci-après de la description des figures qui représentent
- figure 1 : une représentation schématique d'une coupe d'un vitrage selon l'invention possédant deux feuilles de verre,
- figure 2 : une représentation schématique d'une coupe d'un vitrage selon l'invention possédant trois feuilles de verre,
- figure 3 : une représentation schématique d'une coupe d'un vitrage selon l'invention possédant trois feuilles de verre et un intercalaire différent des deux premiers exemples.Other details and advantageous characteristics of the invention emerge below from the description of the figures which represent
FIG. 1: a schematic representation of a section through a glazing according to the invention having two sheets of glass,
FIG. 2: a schematic representation of a section of a glazing according to the invention having three sheets of glass,
- Figure 3: a schematic representation of a section of a glazing according to the invention having three sheets of glass and a different insert from the first two examples.
Sur la figure 1 est représenté un vitrage selon l'invention. La couche 1 est une feuille de verre d'une épaisseur de 4 mm. Cette feuille de verre a subi avant son assemblage un traitement de recuit ou bien un traitement de trempe thermique ou chimique afin d'améliorer ses propriétés physiques, notamment une élasticité plus importante. La couche 2 est une résine de polyvinylbutyral d'une épaisseur de 2,28 mm. Cette résine a pour fonction d'absorber les contraintes dues aux chocs et de n'en transmettre qu'une faible partie à la couche 3. L'épaisseur de cette résine est obtenue par superposition de plusieurs films d'une épaisseur standard. La couche 3 est la seconde feuille de verre qui a une épaisseur de 2 mm. Cette seconde feuille a également subi un traitement de recuit ou de trempe thermique ou chimique. Ce traitement permet de diminuer les risques de formation d'éclats. Cependant pour éliminer encore ce risque et éviter la projection de ces éclats, la feuille de verre est elle-même recouverte d'une couche anti-éclats 4. Cette couche se compose d'un film de polyvinylbutyral de 0,76 mm qui permet d'une part de renforcer l'absorption du choc et d'autre part d'assurer l'adhésion d'un film polyester qui apporte une protection au film de polyvinylbutyral qui est très sensible comme couche de surface. Le film polyester, d'une épaisseur de 0,18 mm, est lui-même enduit d'une couche de polysiloxane de façon à lui procurer une bonne résistance à l'abrasion. In Figure 1 is shown a glazing according to the invention. Layer 1 is a sheet of glass with a thickness of 4 mm. This glass sheet has undergone, prior to assembly, an annealing treatment or else a thermal or chemical toughening treatment in order to improve its physical properties, in particular greater elasticity. Layer 2 is a polyvinyl butyral resin with a thickness of 2.28 mm. The function of this resin is to absorb the stresses due to impact and to transmit only a small part of it to the layer 3. The thickness of this resin is obtained by superimposing several films of standard thickness. Layer 3 is the second glass sheet which has a thickness of 2 mm. This second sheet has also undergone an annealing or thermal or chemical quenching treatment. This treatment reduces the risk of splinters. However, to further eliminate this risk and avoid the projection of these splinters, the glass sheet is itself covered with an anti-splinter layer 4. This layer consists of a 0.76 mm polyvinyl butyral film which allows on the one hand to reinforce shock absorption and on the other hand to ensure the adhesion of a polyester film which provides protection to the polyvinyl butyral film which is very sensitive as a surface layer. The 0.18 mm thick polyester film is itself coated with a layer of polysiloxane so as to provide it with good abrasion resistance.
L'ensemble formant une feuille composite de polyvinylbutyral et polyester enduit de polysiloxane, constitue la couche anti-éclats du vitrage.The assembly forming a composite sheet of polyvinyl butyral and polyester coated with polysiloxane, constitutes the anti-splinter layer of the glazing.
Ces vitrages sont testés selon la norme américaine
MIL-P 46 593 A qui constitue un test ballistique. Lors de ce test, les vitrages ne doivent présenter aucun éclat projeté depuis la surface du vitrage orientée vers l'habitacle.These glazings are tested according to the American standard
MIL-P 46 593 A which constitutes a ballistic test. During this test, the glazing must not present any splinters projected from the glazing surface oriented towards the passenger compartment.
Le vitrage ainsi représenté a une épaisseur de moins de 10 mm et donc un poids très avantageux. D'autre part, l'utilisation du polyvinylbutyral comme résine est très intéressante ; elle ne nécessite ni l'emploi d'une colle ni l'emploi d'une solution de primage. D'autre part, ce matériau est couramment utilisé dans l'industrie verrière et son association avec le verre dans la constitution d'un vitrage est à la portée de l'homme du métier. Les véhicules devant recevoir ces vitrages ont des structures porteuses pouvant recevoir dans certains cas des vitrages dont l'épaisseur peut aller jusqu'à environ 16 mm. Il est alors possible de modifier la structure et d'augmenter le potentiel d'absorption des chocs. Il est ainsi possible de réaliser des vitrages résistant à des impacts causés par des projectiles arrivant avec une énergie plus importante. The glazing thus represented has a thickness of less than 10 mm and therefore a very advantageous weight. On the other hand, the use of polyvinyl butyral as a resin is very interesting; it does not require the use of an adhesive or the use of a priming solution. On the other hand, this material is commonly used in the glass industry and its association with glass in the constitution of a glazing is within the reach of the skilled person. The vehicles which are to receive these glazing units have bearing structures which can in certain cases receive glazing units the thickness of which can range up to approximately 16 mm. It is then possible to modify the structure and increase the shock absorption potential. It is thus possible to produce glazing resistant to impacts caused by projectiles arriving with greater energy.
Des vitrages présentant une épaisseur plus importante sont représentés aux figures 2 et 3. Glazing having a greater thickness are shown in FIGS. 2 and 3.
Sur la figure 2, la feuille de verre 5 orientée vers l'habitacle et la couche anti-éclats 6 sont identiques à celle de la figure 1. Par contre, la résine solide 7 qui est toujours du polyvinylbutyral a une épaisseur de 4,18 mm. Sa fonction d'absorption des contraintes occasionnées par un impact est donc renforcée. D'autre part, la couche faisant face à l'impact n'est plus constituée d'une feuille de verre monolithique mais d'une structure feuilletée. In FIG. 2, the glass sheet 5 oriented towards the passenger compartment and the anti-splinter layer 6 are identical to that of FIG. 1. On the other hand, the solid resin 7 which is still polyvinyl butyral has a thickness of 4.18 mm. Its function of absorbing the stresses caused by an impact is therefore reinforced. On the other hand, the layer facing the impact is no longer made up of a monolithic glass sheet but of a laminated structure.
Cette structure se compose de deux feuilles de verre 8 et 9 d'une épaisseur de 4 mm ayant subi un traitement de recuit ou un traitement de trempe thermique ou chimique, séparées par une couche 10 de polyvinylbutyral d'une épaisseur de 0,76 mm.This structure consists of two sheets of glass 8 and 9 with a thickness of 4 mm having undergone an annealing treatment or a thermal or chemical toughening treatment, separated by a layer 10 of polyvinyl butyral with a thickness of 0.76 mm .
Sur la figure 3, un autre vitrage d'une épaisseur inférieure à 15 mm a été représenté. La couche anti-éclats 11 est identique à celle des deux premières figures. La structure feuilletée identique à celle de la figure 2, faisant face au choc se compose de deux feuilles de verre de 4 mm, 12 et 13, séparées par une couche de polyvinylbutyral 14. Par contre, dans cette configuration la résine solide 15 est une résine ionomère telle que décrite dans le brevet US 4 799 346 d"une épaisseur de 5 mm. In Figure 3, another glazing with a thickness less than 15 mm has been shown. The anti-splinter layer 11 is identical to that of the first two figures. The laminated structure identical to that of FIG. 2, facing the impact, consists of two 4 mm glass sheets, 12 and 13, separated by a layer of polyvinyl butyral 14. On the other hand, in this configuration the solid resin 15 is a ionomer resin as described in US Pat. No. 4,799,346 with a thickness of 5 mm.
Ce type de résine présente une moins bonne adhésion qu'il est donc nécessaire de renforcer par des moyens connus de l'homme du métier. Par ailleurs, ce type de résine possède des propriétés d'absorption des contraintes légèrement supérieures à celles du polyvinylbutyral. Il est dans ce cas possible de limiter encore l'épaisseur de la feuille de verre 16 qui porte la couche anti-éclat. Dans le cas pré- sent, une épaisseur de 1 mm satisfait aux exigences requises. Diminuer au maximum l'épaisseur de cette feuille est important car en cas de choc beaucoup plus violent, les éclats de verre qui peuvent être projetés sont d'autant plus petits que la feuille de verre est mince, et présentent donc moins de risque pour les occupants du véhicule.This type of resin has poorer adhesion, which it is therefore necessary to reinforce by means known to those skilled in the art. In addition, this type of resin has stress absorption properties slightly higher than those of polyvinyl butyral. It is in this case possible to further limit the thickness of the glass sheet 16 which carries the anti-burst layer. In the present case, a thickness of 1 mm meets the required requirements. Reducing the thickness of this sheet as much as possible is important because in the event of a much more violent impact, the shards of glass that can be projected are smaller the thinner the sheet of glass, and therefore present less risk for them. vehicle occupants.
Les trois cas ci-dessus présentés permettent de réaliser des vitrages résistant aux impacts dus à des éclats d'obus et qui lors de ces impacts ne présentent aucune projection de verre en direction de l'habitacle. The three cases presented above make it possible to produce glazing resistant to impacts due to shrapnel and which during these impacts show no projection of glass in the direction of the passenger compartment.
Claims (9)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9213584A FR2697829B1 (en) | 1992-11-12 | 1992-11-12 | Anti-shatter laminated glass. |
| CA 2086370 CA2086370A1 (en) | 1992-11-12 | 1992-12-29 | Shatterproof laminated glazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9213584A FR2697829B1 (en) | 1992-11-12 | 1992-11-12 | Anti-shatter laminated glass. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2697829A1 true FR2697829A1 (en) | 1994-05-13 |
| FR2697829B1 FR2697829B1 (en) | 1995-01-27 |
Family
ID=9435450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9213584A Expired - Fee Related FR2697829B1 (en) | 1992-11-12 | 1992-11-12 | Anti-shatter laminated glass. |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2086370A1 (en) |
| FR (1) | FR2697829B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003087785A2 (en) * | 2002-04-15 | 2003-10-23 | Saint-Gobain Glass France | Method for selecting an insert on the basis of the mechanical resistance thereof |
| US7867605B2 (en) | 2000-09-28 | 2011-01-11 | Solutia Inc. | Intrusion resistant glass laminates |
| US20160249414A1 (en) * | 2014-02-24 | 2016-08-25 | Beijing Hang Bo New Material Technology Co., Ltd | High-speed locomotive windshield and preparation method therefor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1384542A (en) * | 1971-02-24 | 1975-02-19 | Emi Ltd | Glazing materials |
| DE2532412A1 (en) * | 1975-07-19 | 1977-01-20 | Bfg Glassgroup | Bullet proof laminated safety glass pane - comprises at least two silicate panes of different thickness with plastics panel sandwiched between them |
| FR2322106A1 (en) * | 1975-08-29 | 1977-03-25 | Libbey Owens Ford Co | TRANSPARENT GLASS AND STABLE TO TEMPERATURE VARIATIONS AND ITS PRODUCTION PROCESS |
| FR2360526A1 (en) * | 1976-08-02 | 1978-03-03 | Libbey Owens Ford Co | THERMALLY STABLE MULTIPLE GLAZING AND ITS REALIZATION PROCESS |
| WO1988001230A1 (en) * | 1986-08-20 | 1988-02-25 | Libbey-Owens-Ford Co. | Solar control glass assembly and method of making same |
| FR2632950A1 (en) * | 1988-06-15 | 1989-12-22 | Glaverbel | METHOD OF INCREASING THE RESISTANCE TO PENETRATION THROUGH A GLASS BAY AND ENHANCED BREAKING RESISTANCE GLAZING |
| EP0418123A1 (en) * | 1989-09-13 | 1991-03-20 | Saint-Gobain Vitrage International | Sliding lateral auto panes |
-
1992
- 1992-11-12 FR FR9213584A patent/FR2697829B1/en not_active Expired - Fee Related
- 1992-12-29 CA CA 2086370 patent/CA2086370A1/en not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1384542A (en) * | 1971-02-24 | 1975-02-19 | Emi Ltd | Glazing materials |
| DE2532412A1 (en) * | 1975-07-19 | 1977-01-20 | Bfg Glassgroup | Bullet proof laminated safety glass pane - comprises at least two silicate panes of different thickness with plastics panel sandwiched between them |
| FR2322106A1 (en) * | 1975-08-29 | 1977-03-25 | Libbey Owens Ford Co | TRANSPARENT GLASS AND STABLE TO TEMPERATURE VARIATIONS AND ITS PRODUCTION PROCESS |
| FR2360526A1 (en) * | 1976-08-02 | 1978-03-03 | Libbey Owens Ford Co | THERMALLY STABLE MULTIPLE GLAZING AND ITS REALIZATION PROCESS |
| WO1988001230A1 (en) * | 1986-08-20 | 1988-02-25 | Libbey-Owens-Ford Co. | Solar control glass assembly and method of making same |
| FR2632950A1 (en) * | 1988-06-15 | 1989-12-22 | Glaverbel | METHOD OF INCREASING THE RESISTANCE TO PENETRATION THROUGH A GLASS BAY AND ENHANCED BREAKING RESISTANCE GLAZING |
| EP0418123A1 (en) * | 1989-09-13 | 1991-03-20 | Saint-Gobain Vitrage International | Sliding lateral auto panes |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7867605B2 (en) | 2000-09-28 | 2011-01-11 | Solutia Inc. | Intrusion resistant glass laminates |
| WO2003087785A2 (en) * | 2002-04-15 | 2003-10-23 | Saint-Gobain Glass France | Method for selecting an insert on the basis of the mechanical resistance thereof |
| WO2003087785A3 (en) * | 2002-04-15 | 2004-04-08 | Saint Gobain | Method for selecting an insert on the basis of the mechanical resistance thereof |
| US7197941B2 (en) | 2002-04-15 | 2007-04-03 | Saint-Gobain Glass France | Method for selecting an insert on the basis of the mechanical resistance thereof |
| CN100363734C (en) * | 2002-04-15 | 2008-01-23 | 法国圣戈班玻璃厂 | Method for selecting an insert on the basis of the mechanical resistance thereof |
| AU2003244692B2 (en) * | 2002-04-15 | 2008-10-23 | Saint-Gobain Glass France | Method for selecting an insert on the basis of the mechanical resistance thereof |
| AU2003244692C1 (en) * | 2002-04-15 | 2012-03-22 | Saint-Gobain Glass France | Method for selecting an insert on the basis of the mechanical resistance thereof |
| US20160249414A1 (en) * | 2014-02-24 | 2016-08-25 | Beijing Hang Bo New Material Technology Co., Ltd | High-speed locomotive windshield and preparation method therefor |
| US10375769B2 (en) * | 2014-02-24 | 2019-08-06 | China Building Materials Academy | High-speed locomotive windshield and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2697829B1 (en) | 1995-01-27 |
| CA2086370A1 (en) | 1994-05-13 |
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