• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Hot application installation of an adhesive composition comprising an in-line heating device and corresponding method for hot application of the adhesive composition. The installation comprises: an application nozzle for the adhesive composition; a feed line of the nozzle with the adhesive composition to be applied in fluid form; an in-line heating device of the adhesive composition at an application temperature, the heating device comprising: a static mixer comprising an electrically conductive material, and an inductor cable surrounding the static mixer.
    公开号:FR3013993A1
    申请号:FR1361818
    申请日:2013-11-29
    公开日:2015-06-05
    发明作者:Jean-Francois Chartrel
    申请人:Bostik SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to a hot application installation of an adhesive composition comprising an on-line heating device. and a corresponding method of hot application of the adhesive composition. The invention also relates to a device for heating a fluid and its use for heating an adhesive composition. In the adhesive industry, adhesive surfaces can be produced by the technique of hot-pressing the adhesive composition onto a surface. FIG. 1 shows a plant 100 according to the prior art for hot application of an adhesive composition 80. This installation 100 comprises a reservoir 82 for storing the adhesive composition 80, here in the form of a 200-liter drum. . The adhesive composition 80 is intended to be applied on a surface 96, here a polyester film running on a cylinder 92 of axis 94. This application is performed using a nozzle 90 of sizing to form an adhesive surface 98. The feeding of the adhesive composition nozzle 80 to be applied is carried out using a line 88 for fluidic communication of the adhesive composition between the barrel and the nozzle 90, the line 88 being provided with a pump 86 circulation of the adhesive composition.
    [0002] To facilitate the application by the nozzle 90 and the pumping from the barrel to the nozzle 90, the adhesive composition 80, which can be solid at room temperature, is for example heated to a temperature of 100 ° C. to 180 ° C. C to have sufficient viscosity. The installation 100 then comprises a heating means 84 upstream of the pump 86. The heating means 84 corresponds, for example, to a melting plate brought into contact with the adhesive composition in the drum. This melting plate is electrically heated by heating resistors. The quantity of heat communicated from the heating means 84 to the adhesive composition 80 depends in particular on the exchange surface between the heating means 84 and the adhesive composition 80. With reference to FIGS. 2, 3 and 4, various variants of the fusion can then be envisaged, respectively a variant 70 with smooth exchange surface 76 and variants 72 and 74 with exchange surfaces having fins 78. This installation 100 does not however have satisfactory operation in cases where the composition Adhesive 80 to be applied comprises a reactive prepolymer and has an application temperature of from 100 to 120 ° C for example, too close to a crosslinking temperature range, for example from 100 ° C to 140 ° C. Indeed, such an adhesive composition 80 heated in the storage tank 82 with 988 2 a target heating temperature greater than or equal to 100 ° C begins to crosslink, and a fortiori in the presence of moisture. However, with such a heating means 84 in the storage tank 82, on the one hand, the residence time of the adhesive composition 80 at 100 ° C. is poorly controlled and, on the other hand, the temperature actually applied is also poorly controlled. There is therefore a risk of complete crosslinking of the adhesive composition 80 in contact with the fins 78 of the heating means 84, resulting in the formation of a crosslinked compact block. Such a cross-linked block is capable of blocking the melting plate 72 or 74 and preventing any flow of adhesive composition 80 fluid up to the application nozzle 90. This risk of fouling of the melting plate 72 or 74 is particularly aggravated for adhesive compositions crosslinking with moisture. Indeed, each drum change exposes the residues of adhesive compositions on the plate at the humidity of the air then reinforcing the crosslinking of these residues on the plate. There is therefore a need for the application of a reactive adhesive composition having an application temperature close to a crosslinking temperature. More particularly, the invention aims to provide an installation and a method of applying such an adhesive composition. To this end, the present invention proposes a hot application installation of an adhesive composition 80 on a support 96, the installation 20 comprising: a nozzle 50 for applying the adhesive composition 80; a line 88 for supplying the nozzle 50 with the adhesive composition 80 to be applied in fluid form; an in-line heating device 88 of the adhesive composition 80 at an application temperature, the heating device 22 comprising: a static mixer comprising an electrically conductive material, and an inductor cable surrounding the static mixer According to preferred embodiments, the invention comprises one or more of the following features: The installation comprises a storage tank 82 comprising the adhesive composition to be applied 80, the storage tank 82 being connected to the supply line 88 of the application nozzle 50. The adhesive composition to be applied 80 comprises a reactive prepolymer, crosslinking in a temperature range, the adhesive composition to be applied having an application temperature range included in the crosslinking temperature range. . The adhesive composition to be applied 80 is fluid under normal temperature and pressure conditions. The installation comprises heating means 44 capable of being arranged at a storage tank 82 comprising the adhesive composition to be applied 80 to raise the adhesive composition to be applied 80 to a pumping temperature. o The installation comprises a pump 46 for circulating the adhesive composition 80 in the feed line 88, the pump 46 being able to circulate an adhesive composition 80 having a viscosity of 1000 Pa.s, preferably 600 Pa. s, more preferably 500 Pa.s. o The static mixer 30 of the heating device 22 comprises: - a sheath 34 forming a portion of the supply line 88 of adhesive composition, the sheath being made of electrically insulating material, preferably glass or polymer free of conductive fillers; and - a mixing element 38 having deflection surfaces 32 of the adhesive composition circulating in the sheath 34, the mixing element 38 being made of electrically conductive material and disposed in the sheath 34. o The mixing element 38 disposed in the sheath 34 has a density of heat exchange surfaces of greater than or equal to 5 * 103 m1, preferably between 5 * 103 m-1 and 10 * 103. an adhesive composition 80 on a support 96, the method comprising: - supplying an application installation 20 according to one of claims 1 to 8 and a storage tank 82 comprising the adhesive composition to be applied 80 and connected to the supply line 88 of the application nozzle 50; the circulation of the adhesive composition 80 from the storage tank 82 to the on-line heating device 88; heating the pumped adhesive composition to the application temperature, by supplying electrical power to the inductor cable 26 of the heating device 22; - Hot application of the adhesive composition 80 on a support 96 using the application nozzle 50. According to one embodiment of the hot application process, the adhesive composition 80 is applied with a viscosity of 15. Pa.s ± 5 Pa.s. According to one embodiment of the hot application process, the adhesive composition 80 is applied at a temperature of between 50 ° C. and 140 °, preferably between 80 ° C. and 120 ° C., more preferably between 100 ° C. and 110 ° C. Further features and advantages of the invention will be apparent from the following description of embodiments of the invention, given by way of example and with reference to the accompanying drawings. Figure 1 shows an application installation of adhesive composition according to the prior art. Figures 2, 3 and 4 show different melting plate variants used in the installation of Figure 1. Figure 5 shows a proposed application installation of adhesive composition comprising an in-line heating device of the adhesive composition.
    [0003] FIG. 6 shows a schematic sectional view of the on-line heating device of the installation of FIG. 5. FIG. 7 shows an embodiment of a mixing element of the device of FIG. hot application of an adhesive composition, in particular of a crosslinkable adhesive composition and in particular of an adhesive composition which can be crosslinked with heat and with moisture. This crosslinked adhesive composition may correspond to a pressure-sensitive adhesive composition (also known in English as "pressure sensitive adhesive" abbreviated as "PSA").
    [0004] FIG. 5 shows a schematic representation of an embodiment of the proposed installation 20. The elements common to FIGS. 1 and 5 have the same reference signs. The proposed installation differs in particular from the installation 100 of FIG. 1 in that it comprises, in line 88, a heating device 22.
    [0005] The heating device 22 contributes to the application temperature of the adhesive composition 80. The application temperature corresponds to a temperature where the adhesive composition to be applied has a sufficiently low viscosity to allow the application, that is to say the coating, the adhesive composition 80 on the surface 96. An application temperature of the adhesive composition 80 can thus correspond to a temperature where the viscosity of the adhesive composition is less than or equal to 20 Pa.s, preferably less than or equal to at 10 Pa.s. By way of example, the adhesive composition 80 may have a viscosity of 15 ± 5 Pa.s at an application temperature of 100 ° C to 120 ° C. With respect to the heating means 84 arranged in the storage tank 82, here in the form of a barrel, the heating device 22 is distinguished by being disposed in line 88. In other words, the heating device 22 performs the heating of the adhesive composition 80 when the adhesive composition 80 is in motion. This 988 heating in motion, also called in-line heating, makes it possible to reduce the hot residence time of the adhesive composition 80 with respect to a heating of the adhesive composition 80 in the storage tank 82 where the hot adhesive composition 80 is almost motionless. By allowing a reduction in the hot residence time of the adhesive composition 80, the in-line heating device 22 can effect the application temperature setting of the adhesive composition 80, even in the case where the application temperature is included in the crosslinking temperature range of the adhesive composition 80. Indeed, depending on the intended application temperature included in the crosslinking temperature range, the hot residence time of the moving adhesive composition 80 can be adapted. The hot residence time of the moving adhesive composition may in particular be modulated with the flow rate of the adhesive composition 80 and the line displacement 88 between the in-line heating device 22 and the application nozzle 50. For example, for an adhesive composition 80 to be applied at 100 ° C and having a cross-linking temperature range of 100 ° C to 120 ° C with crosslinking times of one to a few minutes (without additional moisture input), the flow rate of the In-line adhesive composition 80 can be adjusted so that the crosslinking reaction is limited so as not to foul the installation with crosslinked adhesive composition. The progression of the crosslinking reaction can be assessed by reference to the conversion rate of the crosslinking reaction in the plant determined according to the following equation: ## EQU1 ## where X is the conversion ratio without unit ; Mo is the mass flow rate of non-crosslinked adhesive composition at the storage tank 82 in the form of a drum; Mt is the mass flow rate of non-crosslinked adhesive composition at the nozzle 50. The flow rate of the in-line adhesive composition 80 can thus be adjusted so that, depending on the reaction kinetics and the temperature, particularly in the static mixer , the conversion rate of the crosslinking reaction of the adhesive composition remains less than or equal to 30%, preferably less than or equal to 10%. The flow rate of the adhesive composition 80 in the in-line heating device is, for example, between 80 gs -1 and 170 gs -1, ie approximately 5 to 10 kg per minute, such as equal to 120 g s -1, or about 7 Kg per minute. To enable application temperature of the adhesive composition 80 to a high flow rate, the in-line heating device 22 has a structure 988 6 adapted to a very efficient heating. Figure 6 shows a longitudinal sectional view of an embodiment of the in-line heating device 22. To enable rapid heating, the in-line heating device 22 includes induction heating. Thus, the in-line heating device 22 comprises an inductor cable 26, here in the form of a solenoid, to allow the generation of a magnetic field. The in-line heating device 22 further comprises a static mixer 30 in which the adhesive composition to be heated 80 can circulate. Static mixers are particularly known for use in the injection molding industry to homogenize the material before injection into a mold. Static mixers known in the art include mixing elements having fluid deflection surfaces for achieving a homogeneous mixture of fluid over a short distance and with low shear. Similar to the known static mixers, the static mixer 30 included in the in-line heating device 22 comprises at least one such mixing element 38. As illustrated, the static mixer has a set of mixing elements 38 arranged in a sheath 34. The sheath 34 forms a circulation duct of the adhesive composition 80. The sleeve 34 and the at least one mixing element 38 constitutes the static mixer 30 of the in-line heating device 22.
    [0006] When the in-line heating device 22 is integrated in the installation 20 of FIG. 5, the sleeve 34 as a circulation duct is a portion of the line 88. The static exchanger 30 formed here in the proposed heating device 22 has the particularity of having an electrically conductive material. In this document, an electrically conductive material is understood to mean a material having a resistivity of less than 10 S.2.m, preferably less than 10-6 S.2.m. The magnetic field generated by the inductor cable 26 surrounding the static mixer 30 is then capable of inducing an electric current, known as an eddy current, into the electrical conductor of the static mixer 30. The eddy currents induced in the conductor Electrical causes Joule heat generation which diffuses to the adhesive composition 80 via the components of the static mixer 30. The heat exchange efficiency of the heat generated between the static mixer 30 and the adhesive composition 80 depends on the structure of the sheath and, in particular, mixing elements 38 and their useful heat exchange surface. FIG. 7 shows an embodiment of one of the mixing elements 38 of the in-line heating device 22. The mixing element 38 has deflection surfaces 32 which form different angles with respect to the main direction 28 of FIG. circulation of the adhesive composition 80 in the static mixer 30. This mixing element 38 having these deflection surfaces then has a high surface density in contact with the adhesive composition 80 to be mixed. The surface density corresponds to a quantity of exchange surfaces per volume and is therefore expressed in m2 / m3, i.e. in m-1. The mixing elements 38 included in the in-line heating device 22 may have a surface density greater than or equal to 5 * 103 m-1, preferably between 5 * 103 m-1 and 10 * 103 m-1. Such surface densities correspond, for example, to a static mixer 40 to 60 cm long for a diameter of 4 to 6 cm and with a useful surface area of 5 to 10 m 2. In the particular application envisaged of the static mixer 30 in the in-line heating device 22, a high surface density makes it possible to obtain a large useful surface of heat exchange between the static mixer 30 and the circulating adhesive composition 80. . In other words, the deflection surfaces 32 form a heat exchanger with a structure suitable for rapid application temperature setting of the adhesive composition 80 present in the sheath 34. In particular, in the case where the static mixer 30 of the device In-line heating 22 would not have a sufficient total exchange area, the plant 20 may comprise recirculation of the adhesive composition in the in-line heating device 22. This recirculation, not shown, may include a downstream stitching of the in-line heating device 22 which returns the adhesive composition upstream of the in-line heating device 22, for example by means of a circulation pump. Such recirculation makes it possible to increase the residence time of the adhesive composition in the on-line heating device 22 without reducing the flow rate of the installation 80 and without increasing the dimensions of the static mixer. Moreover, such a recirculation facilitates the rise in temperature of the installation during a restart, by allowing the circulation of the adhesive composition in the circuit formed by the recirculation and the on-line heating device 22 as long as the heating device online 22 has not yet reached the desired temperature. Finally, because of the circulation of the adhesive composition 80 and the high exchange surface density, the in-line heating device 22 allows the adhesive composition to be brought to temperature at the application temperature with a short time. stay. The hot application plant 20, with the application nozzle 50, the nozzle supply line 88 and the in-line mixing device 22 can thus apply to the surface 96 crosslinkable adhesive compositions 80 having a temperature. application device included in the range of 988 8 crosslinking of the adhesive composition 80 by limiting the risks of crosslinking of the adhesive composition 80 in line 88. The application installation 20 is also proposed with the storage tank 82 comprising the composition adhesive 80 to be applied and connected to the supply line 88 of the nozzle 50. It is furthermore proposed a method of hot application of an adhesive composition comprising the provision of such an application installation 20. According to method, the adhesive composition flows from the storage tank to the in-line heating device, for example by means of a circulation pump 46. The adhesive composition 80 is then heated in line by means of the heating device 22 due to the electrical supply of the inductor cable 26. The inductor cable 26 is for example supplied with a high frequency electric current, preferably higher or equal to 1 MHz, such as 15 MHz. Once set to the application temperature, the adhesive composition 80 is applied to the surface 96 by the application nozzle 50. According to the example mentioned above, the application can be carried out with a fluid viscosity of 15 Pa. sf 5 Pa.s. The application temperature can be between 50 ° C and 140 ° C. More particularly, the application temperature may be between 80 ° C. and 120 ° C. or between 100 ° C. and 110 ° C. The proposed method of application is particularly advantageous when it is part of a more general method of producing a crosslinked adhesive carrier. Such a process for producing a crosslinked adhesive support is particularly proposed. According to this method, the surface 96 is provided to support the application of the adhesive composition 80 according to the previously described hot application method. Following the application of the adhesive composition 80 to the surface 96, the coated support 98 is subjected to a controlled temperature, and preferably to a controlled humidity level, to allow crosslinking of the adhesive composition. The controlled temperature can be achieved using an oven or enclosure. The control temperature corresponds to a crosslinking temperature of the adhesive composition 80 and is for example between 50 ° C and 200 ° C. More particularly, the crosslinking temperature is between 50 ° C and 180 ° C, preferably between 80 ° C and 160 ° C, more preferably between 100 ° C and 150 ° C or between 100 ° C and 140 ° C vs. Since the previously described heating system allows the application of the hot-melt adhesive composition to an application temperature included in the crosslinking range of the adhesive composition, the method of producing a proposed crosslinked adhesive carrier is particularly advantageous when Previous ranges of application temperatures intersect the crosslinking temperature ranges of the adhesive composition 80. In the proposed installation and also for the proposed hot-forming and production processes, the adhesive composition 80 to be applied can particularly be an adhesive composition comprising at least one silylated prepolymer, and at least one compatible tackifying resin. This adhesive composition also preferably comprises at least one catalyst. More particularly, the adhesive composition may comprise: from 20% to 85% by weight, preferably from 30% to 75% by weight of the at least one silylated prepolymer; 15 to 80% by weight, preferably 25 to 70% by weight of the at least one tackifying resin; - From 0.01 to 3% by weight, preferably from 0.1 to 2% by weight of the at least one catalyst. The adhesive composition may thus correspond to the adhesive compositions described in document WO 2012/090151 A2, the at least one silylated prepolymer being, for example, a polyurethane or a polyether comprising two hydrolyzable alkoxysilane end groups. When the adhesive composition 80 is solid or too viscous under normal conditions of temperature and pressure, ie 1 bar and 20 ° C., heating means 44 may also be provided in the storage tank 82. Too much viscosity, or even a solid state of the adhesive composition at room temperature can indeed make the pumping difficult. The heating means 44 in the storage tank 82, here in barrel form, can then bring the adhesive composition to a pumping temperature, that is to say at a temperature where the viscosity of the adhesive composition is sufficiently low. for pumping by the circulation pump 46. The circulation pump 46 may typically be adapted to circulate the adhesive composition 80 having a viscosity of 500 Pa.s, preferably 600 Pa.s. According to a particularly preferred embodiment, the circulation pump 46 can pump the adhesive composition 80 when it has a viscosity of 1000 Pa.s. In other words, the heating means 44 in the storage tank then allow the temperature rise to the pumping temperature. These heating means 44 are also particularly useful for melting the adhesive composition when the adhesive composition is solid at normal temperature and then bringing the adhesive composition to the pumping temperature. The pumping temperature of the adhesive composition 80 is for example a temperature of 40 ° C to 60 ° C. In other words, it is the in-line heater 22 that provides most of the heating energy to the adhesive composition. According to a preferred embodiment of the proposed installation 20, the application nozzle 50 may also be heated. The heating of the nozzle 50 then contributes to the application temperature of the adhesive composition 80. Thus according to this embodiment, the application nozzle 50 is part of the heating device 22 at the application temperature. The heating of the nozzle 50 provides thermal energy at the end of line 88 to bring the adhesive composition to the final application temperature. This final application temperature being reached at the end of line 88, the residence time at this temperature is short, thus limiting the risks of crosslinking of the adhesive composition. However, the heating power of the application nozzle 90 is relatively small, typically being of the order of 200 W. The heating of the adhesive composition via the induction heated static mixer 30 then makes the greatest contribution. heating to the final application temperature, for example of the order of 10 KW to 20KW, even if the heated nozzle 90 can finalize the heating. According to this embodiment, the static mixer 30 can heat the adhesive composition 80 to a slightly lower temperature, for example 10 ° C or less, than the final application temperature. As the temperature of the adhesive composition 80 in the static mixer 30 is lower than the application temperature, the crosslinking time at this temperature is lower and the risk of plugging in line is then further reduced. According to a preferred embodiment of the in-line heating device 22, the sheath 34 is made of insulating material. In this document, electrically insulating material is understood to mean a material having a resistivity greater than or equal to 106 S2.m. The insulating material of the sheath 34 is for example glass or a polymer free of conductive fillers. According to this preferred embodiment, the mixing elements 38 are made of electrically conductive material to allow induction heating of the static mixer 30. Indeed, as indicated above, the inductor cable 26 is susceptible, with an AC power supply. , to induce an eddy current in any electrical conductor placed in the magnetic field produced. The eddy currents are induced on the surface of the first conductor placed in the magnetic field with a depth of penetration that can be expressed as follows: (2) P = where P is the penetration depth in m; p is the resistivity of the material to be heated to S2m; 988 11 f is the frequency in Hz of the alternating current supplying the inductor cable 26; po is the vacuum permeability equal to 47C10-7 in H.m-1; , u, is the relative (dimensionless) permeability of the material in which the eddy currents are induced. The embodiment of the sleeve 34 of electrically insulating material and mixing elements of conductive material then allows to arrange the mixing elements as the first conductor in the magnetic field generated by the inductor cable 26 surrounding the sleeve 34. The induction of eddy currents is then performed directly in the mixing elements 38 at the deflection surfaces 32, and not at the sleeve 34 placed between the inductor cable and the mixing elements 38. The realization of an induction and a Joule effect at the deflection surfaces 32 allows a more effective heating of the adhesive composition 80 which comes into direct contact with these deflection surfaces 32 without intermediate.
    [0007] According to a less advantageous embodiment, the sheath 34 is made of conductive material, so that the induction of eddy current penetrates only the sheath 34 and not the mixing elements 38. The Joule effect then occurs at the level of the sheath. sleeve 34, and the heat diffuses to the adhesive composition 80 by conduction through the intermediary of the deflection surfaces 32. In this less advantageous embodiment proposed, the heat exchange is less efficient because of the use of an intermediary to drive the heat. The preferred embodiment with insulating sleeve 34 of the heater 22 is provided for heating any fluid, in addition to the use for heating the adhesive composition 80. The proposed heater 22 may be used for heating any fluid in other field than the particular field of the application of the hot adhesive composition 80, such as for heating a paint for example. Such an embodiment of the proposed heating device 22 then allows an improved induction heating compared to a use of induction heating where only the outer walls of a mold or a circulation duct are heated by induction such as in JP 2001 191 364 A, JP 2001 191 380 A, JP 2005/222781 A and US 2011/0116340 A1. In particular in the technical field of heat treatment of food, the aforementioned document JP 2005/222781 A describes the use of induction heating at a circulation line, the circulation line then diffusing heat by conduction to the food via mixing element. The use of the proposed heating device 22 with 988 12 static mixer provided with an insulating sleeve 34 allows heating without intermediate and therefore more effective fluid flowing in the static mixer 30. Of course, the present invention is not limited examples and embodiments described and shown, but it is capable of many variants accessible to those skilled in the art.
    权利要求:
    Claims (12)
    [0001]
    REVENDICATIONS1. A hot application installation of an adhesive composition (80) on a support (96), the installation (20) comprising: - a nozzle (50) for applying the adhesive composition (80); a line (88) for feeding the nozzle (50) with the adhesive composition (80) to be applied in fluid form; an in-line heating device (88) (88) of the adhesive composition (80) at an application temperature, the heating device (22) comprising: a static mixer (30) comprising an electrically conductive material, and an inductor cable (26) surrounding the static mixer (30).
    [0002]
    2. Installation according to claim 1, comprising a storage tank (82) comprising the adhesive composition to be applied (80), the storage tank (82) being connected to the feed line (88) of the application nozzle. (50).
    [0003]
    The plant of claim 2, wherein the adhesive composition to be applied (80) comprises a reactive prepolymer, crosslinking in a temperature range, the adhesive composition to be applied (80) having an application temperature range included in the range. crosslinking temperature.
    [0004]
    4. Installation according to claim 2 or 3, wherein the adhesive composition to be applied (80) is fluid under normal conditions of temperature and pressure.
    [0005]
    5. Installation according to one of claims 1 to 4, comprising heating means (44) adapted to be arranged at a storage tank (82) comprising the adhesive composition to be applied (80) for raising the adhesive composition to apply (80) to a pumping temperature.
    [0006]
    6. Installation according to one of claims 1 to 5, comprising a pump (46) for circulating the adhesive composition (80) in the feed line (88), the pump (46) being able to circulate a composition adhesive (80) having a viscosity of 1000 Pa.s, preferably 600 Pa.s, more preferably 500 Pa.s.988 14
    [0007]
    7. Installation according to one of claims 1 to 6, wherein the static mixer (30) of the heating device (22) comprises: - a sleeve (34) forming portion of the feed line (88) of adhesive composition , the sleeve being made of electrically insulating material, preferably glass or polymer free of conductive fillers; and - a mixing element (38) having deflection surfaces (32) of the adhesive composition circulating in the sheath (34), the mixing element (38) being made of electrically conductive material and disposed in the sheath (34). ).
    [0008]
    8. Installation according to claim 7, wherein the mixing element (38) disposed in the sleeve (34) has a heat exchange surface density greater than or equal to 5 * 103 m-1, preferably between 5 * 103 m-1 and 10 * 103
    [0009]
    9. A method of hot application of an adhesive composition (80) on a support (96), the method comprising: - providing an application installation (20) according to one of claims 1 to 8 and a storage tank (82) comprising the adhesive composition to be applied (80) and connected to the supply line (88) of the application nozzle (50); - circulating the adhesive composition (80) from the storage tank (82) to the on-line heating device (22) (88); heating the pumped adhesive composition to the application temperature by supplying electrical power to the inductor cable (26) of the heating device (22); - Hot application of the adhesive composition (80) on a support (96) using the application nozzle (50). 30
    [0010]
    The hot application method according to claim 9, wherein the adhesive composition (80) is applied with a viscosity of 15 Pa.s ± 5 Pa.s. 35
    [0011]
    11. A method of hot application according to claim 9 or 10, wherein the adhesive composition (80) is applied at a temperature of between 988 and 50 ° C and 140 °, preferably between 80 ° C and 120 ° C, more preferably between 100 ° C and 110 ° C.
    [0012]
    A process for producing a crosslinked adhesive carrier, the method comprising: providing a carrier (96); - Applying an adhesive composition (80) on the support (96) using the method according to one of claims 9 to 11; the crosslinking of the adhesive composition applied at a temperature of between 50 ° C. and 200 ° C., preferably between 80 ° C. and 160 ° C., more preferably between 100 ° C. and 140 ° C.
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    同族专利:
    公开号 | 公开日
    EP2878364A1|2015-06-03|
    FR3013993B1|2016-03-04|
    US20150152292A1|2015-06-04|
    US20180334591A1|2018-11-22|
    ES2609031T3|2017-04-18|
    EP2878364B1|2016-10-19|
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    法律状态:
    2015-10-08| PLFP| Fee payment|Year of fee payment: 3 |
    2016-10-14| PLFP| Fee payment|Year of fee payment: 4 |
    2017-10-12| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1361818A|FR3013993B1|2013-11-29|2013-11-29|INSTALLATION AND CORRESPONDING METHOD FOR HOT APPLICATION OF AN ADHESIVE COMPOSITION, DEVICE FOR HEATING A FLUID AND USE THEREOF|FR1361818A| FR3013993B1|2013-11-29|2013-11-29|INSTALLATION AND CORRESPONDING METHOD FOR HOT APPLICATION OF AN ADHESIVE COMPOSITION, DEVICE FOR HEATING A FLUID AND USE THEREOF|
    US14/552,646| US20150152292A1|2013-11-29|2014-11-25|System and corresponding method for hot application of an adhesive composition|
    EP14195521.1A| EP2878364B1|2013-11-29|2014-11-28|Installation and corresponding process for hot application of an adhesive composition|
    ES14195521.1T| ES2609031T3|2013-11-29|2014-11-28|Installation and corresponding hot application procedure of an adhesive composition|
    US16/049,440| US20180334591A1|2013-11-29|2018-07-30|System and corresponding method for hot application of an adhesive composition|
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