FR2492478A1 - PANEL FOR ASSEMBLY BY BONDING AND METHOD OF ASSEMBLY - Google Patents

Abstract

THE INVENTION RELATES TO A READY-TO-INSTALL PANEL INTENDED TO BE ASSEMBLED BY BONDING TO ANOTHER COMPONENT AND TO A PROCESS OF ASSEMBLY WITH THE INTERVENTION OF AN ADHESIVE MATERIAL. THE PANEL 1 INCLUDES A SUBSTRATE 2 WHICH CARRIES A CONDUCTIVE ELEMENT 6 INTENDED TO PRODUCE HEAT BY JOULE EFFECT AND AN ADHESIVE MATERIAL 7. THE INVENTION APPLIES IN PARTICULAR TO WINDOWS FOR VEHICLES AS WELL AS TO WINDOWS FOR BUILDINGS AND GREENHOUSES.

Description

The present invention relates to a sign intended to be

  bonded to another component and a method of

  appearance of a substrate to another component by the intervention of a

adhesive.

  It is known to use different types of adhesive

  and the user can make a choice based on the final destination.

  the assembly. Nevertheless, in some applications, it is not always possible to satisfactorily meet all the requirements for implementation, while retaining the properties

required after assembly.

  Thus among the various types there are adhesive materials which have a low viscosity at room temperature. The application of such an adhesive is easy. It is the same

  for the application of the coated board, which does not require any

  healthy. On the other hand, the manipulation of the coated panel is delicate.

  In addition, these types of adhesives also have vulcanizing times.

  tion or polymerization. As a result, it can be

  maintain the panel in place for a time sufficient for the adhesive material to be sufficiently rigid to support the panel. As a result, this type of adhesive is not suitable for laying panels in a production or assembly line, if one

  wants to reach high rates.

  We therefore preferred them for certain applications of

  adhesive materials of higher viscosity at room temperature.

  The manipulation of the coated panel is facilitated. On the other hand, the use of these adhesive materials leads to difficulties in placing the panel. They require, for example, the use of presses to press the panel against its support. This operation

  additional, in addition to the time required for its implementation.

  cumbersome equipment and is again not desirable

  in a mass production.

  Apart from the problems posed by the handling of adhesive materials and coated panels, it is also necessary to

  constraints imposed on the assembly during its use.

  lisation. For example, in the particular field of

  the automobile, the tendency is to fix the fixed glazing to the coach-

  the vehicle by gluing. The bonding point must retain elastic and / or plastic properties in order to absorb the

  deformations of the bodywork without leading to breakage of the glazing.

  In addition it is necessary that the adhesion is sufficient for that. the glazing, in particular the windscreen, does not separate from the vehicle in certain

some shock conditions.

  It is not always easy to find the adhesives that allow

  to respond satisfactorily to all these requests.

  derata. On the other hand, it is interesting, when manufacturing in

  large series, not to be obliged to carry out further manipula-

after the panel has been laid.

  In some cases, it is also requested that the panel can be disassembled after placement. This is particularly so for glazing that must be replaced in case of breakage. A

  such disassembly operation can be quite difficult to perform.

  The object of the present invention is to provide a sign

  which makes it possible to remedy at least partially some of the

venents listed above.

  The invention relates to a panel intended to be assembled

  by gluing to another component, which is characterized in that

  carries a substrate carrying at least one heat-sensitive adhesive material and which makes it possible to fix said panel to this other component and in that it comprises at least one electrically conductive element external to said adhesive material intended to supply said material

  heat produced by Joule effect in the conductive element.

  The realization of the panel according to the invention can be done in a simple way. In that the conductive element is disposed outside the adhesive, the conductive element and the adhesive may be

  deposited independently of each other and each according to his

  clean. It is therefore not necessary to provide a preliminary assembly of the adhesive with the incorporatedconductor element, which

  would require special equipment. This technique is not

  their applicable only for certain types of adhesive. In addition, you can

  select both the adhesive and the conductive element at the time of

  pot. The production of a panel according to the invention therefore makes it possible to use

  be the adhesive adapted to the specifications imposed by the user.

  Indeed, the range of usable adhesives is broadened. In addition,

  Some adhesives can be deposited in a conventional manner, for example by an ordinary extruder of simple construction. On the other hand, if the conductive element was not located outside the adhesive, it would be necessary to

  -should have a number of conductive element

  ready-to-use adhesive. This would require significant storage and

  limited possibilities when choosing materials.

  The panel according to the invention allows, moreover, an assembly

  easier to do with another component. Indeed, access to the conductive element is very easy when placing the panel, and it is not

  necessary to perform other manipulations after the installation of the panel.

  The introduction of this assembly operation in a manufacturing in

  large series is therefore easily achievable. When disassembling

  tual panel, access to the conductive element also remains easy.

  In certain embodiments, the panel according to the invention also provides the advantage of being ready for installation and of reducing, by

  this, in a sensible way, the number of manipulations during his

  tallation. This feature clearly favors the use of this panel in an assembly line or for the installation of large

  series. The panel may be manufactured in a different location from the

  do assembly, and be stored. The chain is then fed from the stock, as needed, and the panel can be mounted without further

important prior treatment.

  The panel according to the invention may comprise a substrate consisting of. different materials such as, for example, a plastic, wood, ... However, according to a preferred embodiment of a panel according to the invention, the substrate comprises a glass sheet. The invention has been developed more particularly for this type

of substrate.

  The substrate can, in this case, be constituted by a

  simple-tempered, or laminated tracing for placement in a bay

  glazed, or intended to be associated with another glazing in such a way as to

  storing a multiple glazing. The substrate can also be constituted

  by a sheet of glass associated with a sheet of plastic material.

  Also falling within the scope of the invention are the

  comprising one or more other components such as another glass sheet associated with the substrate, for example by means of a welded or glued interlayer, such that it constitutes a multiple panel intended to be assembled by gluing to a substrate other

  posing or intended to be placed by gluing in a frame.

  In another type of embodiment, the substrate may

  be constituted by a mirror intended to be glued to a wall of

  like, for example. The panel thus produced will be a ready-to-install mirror which will have an advantageous advantage, particularly for

the pose of great series.

  As will be described later, the invention has been developed more particularly for the field of fixed glazing

for a motor vehicle.

  The conductive element can be constituted in different ways. It may for example be made in the form of a thin strip applied against the adhesive material so that it is, for example, placed perpendicularly to the substrate; When the adhesive material is constituted by a self-supporting material, such as a cord, it may be envisaged to deposit a layer of conductive material on the adhesive material. In another embodiment, the conductive element may be applied or deposited on the substrate. It may for example be constituted by one or more preformed conductors applied to the substrate either on either side or on one side of the adhesive,

  between the substrate and the adhesive.

  In a preferred embodiment, the conductive element

  electricity consists of at least one deposited coating

  on the substrate. This particular provision is more easily

  readable from the manufacturing point of view.

  It is obvious that the amount of heat developed by

  the conductive element must be adapted to the material constituting the adhesive

  sif and the type of substrate used. It is however preferable that

  the coating has a conductivity of at least 0.1 Siemens / m.

  This particular arrangement allows the use of difference of po-

  less than 48 volts electrical current meeting safety standards

  in the matter while ensuring sufficient heating of the material

adhé s ive.

  The conductive coating may be deposited on the substrate by various techniques known per se. It can for example be achieved by a conductive lacquer that is deposited with a brush or a brush or with a pneumatic gun. It can also be constituted by a conductive enamel cooked or vitrified under the action of

the heat.

  But preferably, the coating is deposited by spray.

  metal, such as, for example, copper, aluminum or their alloys. This technique is particularly easy to implement. It is also well suited to the coating deposited on a

  glass substrate. It makes it possible to obtain a particular coating

  well hooked to the substrate. The coating thus obtained is also resistant to mechanical deterioration that it could undergo

  during subsequent manipulations. It is also resistant to

  heat produced within it.

  This particular technique also provides another significant advantage. Indeed, when the conductive element is heated, it undergoes, in general, some oxidation. In the case of

  metallization according to the preferred embodiment of the panel according to the invention.

  vention, the face of the conductive element in contact with the substrate does not undergo or very weakly this oxidation. Which allows, between

  other, to maintain its aesthetic appearance.

  The adhesive material can be deposited directly on the substrate in the vicinity of the conductive coating or on both sides

  of this coating. But it will preferably be deposited on the

  mentally. This provision allows for good contact between the

  sif and conductive element and optimum heat transfer to the adhesive. In addition, when the coating has been deposited by the preferred technique of sputtering a metal as indicated above, the

  roughness of the latter significantly improves adhesion of the adhesive

  sive. On the other hand, it allows in this case the use of the conductive coating as hubcap, so as to hide the adhesive face when the panel is installed. Indeed, this coating can provide an aesthetic effect and it will no longer be necessary to provide an outer hubcap. It also follows that a reduction in the quantity of material used and thus a reduction in weight of the assembly is obtained. This advantage is particularly appreciated in the field of motor vehicles. The panel thus produced is particularly advantageous since its conductive element at the same time solves the problem of heating the adhesive and the aesthetic problem. It is obvious that we can apply a layer of attachment

  between the conductive coating and the adhesive. In this way, we ob-

  holds a better adhesion of the adhesive vis-à-vis the coating.

  Among the many types of adhesives that can be used include, in particular, vulcanizable, thermosetting or polymerizable materials. By way of example, mention may be made of polychloroprene,

  polyurethane, neoprene. But, preferably, the adhered material

  sive is a thermoplastic material. It is preferably chosen from elastomers of the family of butyls. For example, a particular interest is brought to the use of elastomers such as high molecular weight polyisobutylenes, chlorobutyls mixed or not with low molecular weight polyisobutylenes, copolymers

  isobutylenes isoprenes. The elastomers of the family of butyl pos-

  in particular, a good seal. It is also possible to use the elastomers based on ethylene-propylene, commonly known as E.P.D.M. Thermoplastics in general, and more particularly those mentioned above, are very advantageous for producing a

  panel according to the invention. Indeed, they usually have a screw

  cosity relatively high at room temperature which allows their handling very easy and without major inconvenience. They are also quite stable over time. The use of polyurethane by

  cons requires special precautions, because very messy.

  In addition, the polyurethane is sensitive to ultraviolet rays and it undergoes

  thereby deteriorating over time.

  Moreover, thanks to the heating by the conductive element

  panel according to the invention, the viscosity of its thermoplastics

  This can be reduced significantly during bonding, which avoids the use of complicated equipment such as presses. Thermoplastics are also of particular interest when the panel is to be disassembled later. Indeed, it is sufficient in this case to produce heat Joule effect in the conductive element to soften the adhesive material and allow easy removal of the panel. This is an advantage that is particularly interesting in the case of the automotive industry, for example, o the replacement of the windshield or other broken fixed glazing, at

  the mechanic is clearly facilitated both with regard to the demon-

  than the placement of the new panel. This advantage is also

  its interest in other areas such as building.

  On the other hand, thanks to the heat provided by the conductive element, the surface tension of thermoplastics

  decreases and their adhesion to the receiving component during the assembly.

  may be improved by the wetting phenomenon.

  This is particularly the case for adhesives of the butyl family. In order to optimize these different advantages obtained

  with thermoplastics, a

  adhesive having a Shore A hardness greater than 2 at 200C and less than 1 at 60C. It is with such a material that the most advantages of the panel according to the invention are obtained, particularly at the point where

from view manipulation and assembly.

  The conductive coating can be deposited on the substrate in the form of several sections distributed in different locations of the

  substrate and / or in different configurations. On this coating

  whether or not it is continuous, the adhesive may be deposited in different

  localized areas, so as to achieve, for example a sticking points. However, preferably, the conductive coating is deposited as a strip along the periphery of the substrate and the adhesive material is deposited on the conductive coating under

form of at least one cord.

  This arrangement makes it possible to obtain a good assembly of the panel with another component. It corresponds to the practice for the manufacture or the assembly in double glazing as well as for the

  fixing fixed windows of the vehicle. Such a disposition of the

  conductor and cord makes it easier to

  disassembly of the panel, access to the conductive coating being

easier.

  The conductive coating can be applied to the

  only one face of the substrate or it can be applied to the

  the two faces of the substrate and on the edge thereof.

  As for the adhesive material, in the case where the conductive coating covers the edge of the substrate, it can be deposited on the portion of this coating which covers the edge of the substrate. However, preferably, the conductive coating is deposited on the periphery

  one side of the substrate and overflows over at least a portion of a tran-

  of the latter, and the bead of adhesive material is deposited on the

  part of the coating disposed on the face of the substrate.

  This arrangement is the most convenient both from the point of view

  of the realization of the panel that from the point of view of its use.

  This particular embodiment of the conductive element and the adhesive also allows easier access for the purpose of feeding

  both during assembly and when dismantling the panel.

  The overflow of the coating on the wafer of the substrate can be carried out continuously or substantially continuously along the periphery, which is generally preferable; or it can be realized in the form of small diametrically opposed terminals or located

  on the other hand, a microrupture in the entire coating

  ducer. In the case where the conductive element has a microrupture in any place, access to this conductive element, facilitated by the partial deposition on the edge of the substrate, allows its use as a dipole for the reception of radio waves in modulation of

frequency.

  The panel according to the invention may be of different shapes

  my. It can be, in particular, flat or curved shape. he can

  for example, a single or multiple glazing intended to

  cupper a bay window in a building or intended to be assembled to a

  other panel. It could also be the walls of an aqua

  rium or various containers. But preferably, it constitutes a

  for a vehicle such as a windshield, a rear window or a

  fixed side window. The panel according to the invention is, in fact, parti-

  well suited to the automotive industry as well as

  other types of vehicles. In particular, it makes it possible to avoid

  delicate nesting in a "Hl" profile joint. Its implementation

  It is easy to use and does not require a com-

  pliquée. It can easily meet the standards of tearing in vi-

  in some countries. Indeed, in the United States, for example,

  standards require the windscreen to remain attached to the vehicle

  during a shock at a speed of 25 miles on a fixed obstacle.

  Only gluing can be used to comply with this regulation.

  tation and panel according to the invention solves this problem.

  On the other hand, in the case of a vehicle, it is particularly interesting

  able to dismantle the fixed glazing in an easy manner in order to

  replacing them with new windows. In a pre-production

  of the panel according to the invention in which a material is used.

  thermoplastic as an adhesive, this condition is clearly fulfilled.

  In addition, its conductive coating can itself serve as a hubcap without the need to subsequently apply an additional component to fill the groove, which allows a reduction of

  weight of the vehicle. On the other hand, this conductive coating can also

  constitute a dipole for the reception of radio waves.

  The invention also relates to an assembly method

  substrate to another component by means of an adhered material

  sive, characterized in that at least one of the elements

  the assembly carries an electrically conductive element

  by Joule effect heat, and in that the adhesive material and the conductive element are brought into contact with each other, the adhesive material is heated by the conductive element, the other elements of the assembly being in contact or in contact with the material

hot adhesive.

  The process according to the invention is particularly interesting.

  especially because it reduces the time needed to assemble

  wiring. Indeed, it allows, depending on the type of adhesive used, either to reduce the polymerization or vulcanization time, or to soften the adhesive material so as to achieve assembly without complicated manipulation. It also allows, in certain forms of implementation, to make adhering or better adhering the material

  adhesive. It also allows a wider choice of adhesive.

  The process can therefore be easily implemented in

  mass production lines.

  The method according to the invention is interesting when

  appearance of various elements but it applies particularly

  using the panels described above.

  Thanks to the method according to the invention, it is possible to manufacture

  at the factory multiple glazings in a production line. It is also possible to dub existing glazing in a building or windows of a greenhouse. You can also paste

  mirrors on their support as well as any other element.

  But, preferably, the method according to the invention is

  characterized in that the substrate is a vehicle glazing and in that the other component is constituted by the vehicle part, for example

  a rabbet, intended to receive said glazing.

  The implementation of this process in the automotive industry

  bile is particularly interesting for reasons similar to

  those given above as to the panel according to the invention.

  According to one form of implementation of the method, the composition

  The substrate for receiving the substrate is provided with adhesive material after which the substrate provided with a conductive element is applied against the adhesive material. This is then heated by Joule effect produced by the conductive element. In particular and as an example for fixing a windshield in its bay, one can provide the latter with a butyl bead. The windshield whose edge has been metallized is put in place, the metallization being applied to the butyl cord. For

  to secure the fixing we pass an electric current in the coating-

is lying.

  It is however more advantageous to implement the

  using a panel according to the invention for the reasons given by

born before.

  The invention will now be described with reference to the accompanying diagrammatic drawings in which FIG. 1 shows (in solid lines) a vertical section of a preferred embodiment of a panel

  according to the invention; fig. 2 shows a section of a panel according to the

  vention assembled to an existing window.

  The panel 1 comprises a substrate 2 constituted by a glass sheet. An electrically conductive element 6 is deposited along the periphery of the substrate 2. Its thickness can vary from

2492478-

  12 to 40_Z <and its electrical resistance from 2 to 5.rL / m. This element

  The conductor is in the form of a continuous band. Eventually

  he may have a microrupture at any point in his life.

  riphérie. In the case of microrupture, the conductive element

  The transmitter can thus form a dipole for receiving radio waves. Figure 1 also shows that the conductive element is deposited no

  only on the face 3 of the substrate, but also on the edge 4 of this.

  substrate. This overflow of conductive element on the wafer may be carried out over all or substantially the entire periphery of the wafer 4. In a variant, it is possible to produce on this wafer small localized deposits located in diametrically opposite locations or situated for example on the one hand and other of the microrupture of the conductive element which has been mentioned. This embodiment makes it possible to obtain small connection tabs, accessible from the outside when the

  panel is installed, which allow the supply of electricity

  than. A bead of adhesive material 7 is deposited on the conductive element

  6 or via a hooking layer applied to the conductive element. Panel 1 thus formed can be considered ready for installation. In order to protect the adhesive, one can deposit

  on the latter a protective paper such as silicone paper.

  In Figure 1, the panel 1 is housed in the rabbet 9 of another component 8 (drawn in broken lines) such as for example, the body of a vehicle. The application on the component 8 may again be performed via or not a fastening layer. It is advantageous to provide component 8 with

  grooves 10 to collect the excess adhesive material.

  The invention will be better understood thanks to the few

  practical examples that follow and refer to Figure 1.

Example 1

  In this example, the substrate 2 is a windshield

  Renault R 14. The windshield was metal-

* at its periphery in the form of a continuous band to obtain the ele-

  6. This metallization was carried out using a pis-

  toret flame of the company Société Nouvelle de Métallisation Paris -

  France (S.N.M.). The metal projected on the substrate is a copper alloy whose composition is as follows: Cu: 94%; Cr: 5%; If: 1%. The width of the metallized strip on the face 3 of the glazing

  18 mm and the metallisation was also carried out on the

  glazed windows. The thickness of this metallized strip is 2Zc. and its ohmic resistance is 3.J './ m, ie 0. 33 Siemens / m. On the metallized strip 6, a thermoplastic web was deposited without the use of a fastening layer. 7 whose composition is as follows Polyisobutylene LMMS ESSO 52 parts Isobutylene-isoprene copolymer 4 parts (Butyl 268 ESSO) Natural rubber 6 parts

Carbon Bleck F. E. F. 38 parts.

  This thermoplastic seal has a Shore A hardness of

4 to 200C.

  At 600C, its Shore A hardness is less than 1.

  The thermoplastic seal is protected by silicone paper

  cone. The assembly of the panel thus produced operates as follows. The berry is cleaned and covered with an adhesion layer (Union Carbide A 187 in alcoholic solution). The siliconized paper is removed and a potential difference of 36 volts is applied to the metallized strip by means of 2 tin-plated copper terminals arranged at two diametrically opposite points for 1'30 ".

  applied to the berry while the thermoplastic seal is hot.

  This application is done without the help of a press. We have

  Z5 takes the assembly time and it is on average 5 minutes. For comparison, other methods of installation have been timed. The following results were obtained: - Cold butyl seal bonding, using a press: 15 minutes, - Cold polyurethane seal bonding: 10 minutes, - Snap-in fitting with rubber seal with a profile "H":

7 minutes.

  On the other hand, the adhesion was measured according to the tested test.

  written further. The following results were obtained: after application to the vehicle: R = 2.5 kg / cm 2

  after aging: R = 3 kg / cm 2.

  For comparison, the application using a seal

  butyl by cold pressing as usually done in the United States.

  United, gives the following results, under the same conditions of measurement: after application to the vehicle: R = 1 kg / cm2 - after aging: R = 1.2 kg / cm2.

  Moreover, thanks to the aesthetic effect of the metal band-

  windshield thus achieved, it is not necessary to place an outer hubcap to hide the adhesive seal. By using the panel according to the invention, the weight gain is noticeable. Indeed, the weight of adhesive material necessary for producing the windshield described above was about 300 gr. Whereas for the same

  windscreen dimensions, the weight of the rubber and the hubcap ne-

  necessary for fitting by fitting is close to 2.2 kilograms

  my. The weight gain is all the more important if all the fixed windows of the vehicle constitute panels according to the invention. It allows

  in particular to obtain a saving on the propulsion energy of the vehicle.

  vehicle. The replacement of the laminated windshield, described above,

  at a garage was done simply in the following manner.

  The inner glass sheet of the laminate was broken, so that the metallized strip was broken. A voltage of 24 was applied

  volts, during 1'30 "on the edges of the conductive element

  tact. Access to the conductive element is facilitated by the fact that

  This is done not only on the face of the glazing but also

  on the edge of the glazing. After 3 minutes, the thermoplastic seal

  The tick heated by the conductive coating has separated from the bodywork of the vehicle. This portion of the peeled seal was held by wedges and the unsmoothed joint was cut with a hot knife. If the conductive coating had remained intact, it would have been sufficient in this case to simply remove the glazing when all the seal

would have been sufficiently softened.

  It is then sufficient to glue a new windshield according to the

  in the bay in the same manner as described above for mounting. The adhesive material of the replacement glazing adheres

  easily to the one who stayed on the bay.

Example 2

  Citroën CX 2000 has been designed for a motor vehicle. In this example, the substrate 2 is a sheet of

  tempered glass. The conductive element 6 has been made of the same material

  than for Example 1 except that the metal used is 99.6% aluminum. The adhesive material 7 is a butyl seal whose composition is as follows: Polyisobutylene LMMS (high molecular weight 48%) Polyisobutylene low molecular weight 12% (Butyl LM ESSO) Escorez resin (Sob 8 ESSO) 8%

Carbon Bleck FEF 32%.

  The width of the conductive coating is 20 mm and its

  ohmic resistance is 2.9 JA / meter, or 0.35 Siemens / m.

  An epoxy silane bonding layer was used

  both on the conductive coating and on the vehicle bay. Lemon-

  the vehicle is carried out in the same way as for the example

ple 1.

  Z0 The replacement of the glazing breaks as follows. The substrate being here a sheet of tempered glass, it is

  easy, after removing most of the fragments of

  As is common in garages, access the butyl gasket and cut it with a hot knife. Once all pieces of glass have been removed, it is sufficient to apply a new glazing in the same way as in Example 1, the butyl of the glazing

  replacement easily adhering to the one remaining on the bay.

  In a variant, the conductive element 6 has been produced by depositing a

  than silver on the peripheral edges of the substrate. This lacquer is

  fired during the operation of bending and tempering the glazing.

  In FIG. Z, the panel 101 according to the invention

  takes a substrate 102 consisting of a glass sheet. This substrate

  carried along the periphery of its face 103, a coating 106

  conductor of electricity on which an adhesive material is deposited 107.

  The conductive coating 106 overflows partially on the wafer 104

  substrate 102 to allow easy access to the conductive coating.

  for its power supply. This sign 101 is applied

  than on another component 108 such as existing glazing.

Example 3

  A panel 101 as shown in FIG. 2 was made to assemble it to the existing glazing of a greenhouse. The substrate 102 is a metallized glass sheet 106 along its periphery. The metallization was carried out with a Cu alloy as described in Example 1. On the conductive coating 106, after application of a bonding layer, there was deposited an adhesive material 107 whose composition is as follows: Polyisobutylene LMMS 5Z parts Butyl 268 (isobutylene copolymer - 8 parts isoprene) Carbon bleck FEF 15 parts Levilite (silica Rhone Poulènej 20 parts

molecular sieve 5 parts.

  The Shore A hardness at 20 ° C of this material is 6.

  The placement of the panel 101 on the existing glazing of the greenhouse was achieved as follows. Carefully cleaned the glass 108. After placing the panel 101 against the glazing 108

  a voltage of 36 volts was applied for 1'30 "at two points dia-

  mestral opposite of the conductive element 106 so as to raise its temperature to a little more than 100'C. The applied voltage and the time of application of this voltage depend, of course, on the dimensions of the

sign.

  Alternatively, the voltage can be applied to the

  clothing before placing the panel 101 against the glazing 108.

Example 4

  Double glazing was made to be used

  glazing for building. Panel 101 was similar to that of Example 3. Component 108 was, in this case, a glass sheet whose edges were metallized in the same manner as those of substrate 102. A spacer may be placed , if desired, between the two sheets of glass so as to maintain a uniform spacing between the sheets. The two parts were assembled without the intervention of primer layer. Then we applied a difference

  potential of 36 volts for 1 'on each of the metallized strips.

  After cooling, the two glass sheets were solidary

  from each other and constituted a double glazing.

  In another embodiment, the conductive element 106 consisted of two metal flats spaced apart from one another and

  parallel to each other along the periphery of the subsurface

  Trat 102. The adhesive material 107 has been deposited between the two flats and in contact therewith. Assembly is done in the same way. It is obvious that the invention is not limited to the embodiments which are illustrated by the accompanying drawings and

  only by the examples cited. Many changes can be made

  in the form, arrangement and constitution of the elements used

  without departing from the framework set by the inventive idea and which is specified

in the claims below.

  The adhesion test referred to above in the examples is carried out as follows: A metallized glass sheet is assembled with a sheet metal

  galvanized painted with an adhesive layer 2 mm thick.

  The bonding surface is 4 x 1, 8 cm is 7, 2 cm2. We submit

  thus seems to be achieved at a tensile stress under a moving speed.

  10 mm / min. The pulling force is recorded during the

  sai. The maximum value reached by force during the test is

  divided by the bonding surface to give the bonding constraint.

Claims (13)

  1. Panel intended to be assembled by gluing to another component, characterized in that it comprises a substrate (2, 102) carrying at least one adhesive material (7, 107) sensitive to heat and which allows to fix said panel (1, 101) to this other component (8, 108) and in that it comprises at least one conductive element (6, 106) of electricity external to said adhesive material intended to supply said material with heat produced by Joule effect in the conductive element. 2. Panel according to claim 1, characterized in that   said substrate comprises a glass sheet (Z, 102).   3. Panel according to one of claims 1 or 2, characterized   in that the electrically conductive element is constituted by   at least one coating (6, 106) deposited on the substrate.   4. Panel according to claim 3, characterized in that   the coating has a conductivity of at least 0.1 Siemens / m.   5. Panel according to one of claims 3 or 4, characterized   characterized in that the coating is deposited by sputtering a metal,   such as, for example, copper, aluminum or their alloys.   6. Panel according to one of claims 3 to 5, characterized   characterized in that said adhesive material is deposited on the conductive coating.   7. Panel according to one of claims 1 to 6, characterized   characterized in that said adhesive material is a thermoplastic material   which is preferably selected from elastomers of the family. Z5 the butyls.   8. Panel according to claim 7, characterized in that   said thermoplastic material has a higher Shore A hardness than   less than 2 at 20 ° C and less than 1 at 600C.   9. Panel according to one of claims 6 to 8, characterized   in that the conductive coating is deposited in the form of a   band along the periphery of the substrate and that the adhered material   sive is deposited on the conductive coating in the form of at least a bead (7, 107).   10. Panel according to claim 9, characterized in that the conductive coating is deposited on the periphery of a face (3, 103) of the substrate and overflows on at least a portion of a wafer (4, 104) thereof. ci, and in that the bead of adhesive material is deposited on the parge coating disposed on the face of the substrate.   11. Panel according to one of claims 1 to 10,   characterized in that it constitutes a glazing for a vehicle such as a   breeze, a rear window or a fixed side window.   12. Method of assembling a substrate to another compound   subject to the intervention of an adhesive material using, for example,   for example, a panel according to one of claims 1 to 11, characterized   in at least one of the elements (2, 7, 8, 102, 107, 108) between   coming into the assembly carries an electrically conductive element (6, 106) that can dissipate heat by the Joule effect, and that   the adhesive material (7, 107) and the conductive element being   the adhesive material is heated by the conductive element, the other elements (2, 8, 102, 108) of the assembly being   in contact or in contact with the hot adhesive material.   13. The method of claim 12, characterized in   the substrate is a vehicle glazing and in that the other   posing is the part of the vehicle, for example a sheet of   lure (9, 109) for receiving said glazing.