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    • 专利摘要:
    coating process and device. The present invention relates to an innovative coating device, the process achievable with this device, as well as products obtained therefrom and their use.
    公开号:BR112012019664B1
    申请号:R112012019664-2
    申请日:2011-02-08
    公开日:2018-11-21
    发明作者:Bernd Mergner；Stéphane Masson
    申请人:Umicore Ag & Co. Kg；
    IPC主号:
    专利说明:

    (54) Title: SUBSTRATE COATING SET AND PROCESS (73) Holder: UMICORE AG & CO. KG. Address: Rodenbacher Chaussee 4 DE-63457, Hanau-Wolfgang, GERMANY (DE) (72) Inventor: BERND MERGNER; STÉPHANE MASSON.
    Validity Term: 20 (twenty) years from 02/08/2011, subject to legal conditions
    Issued on: 11/21/2018
    Digitally signed by:
    Alexandre Gomes Ciancio
    Substitute Director of Patents, Computer Programs and Topographies of Integrated Circuits
    1/35
    Invention Patent Descriptive Report for SUBSTRATE COATING SET AND PROCESS.
    Description [001] For the coating of honeycomb bodies / ceramic or metallic filters, hereinafter referred to as substrates, with liquefied coating media, different problems arise.
    [002] One possibility for coating the substrates is to make contact of these units with the openings on one side with the intended coating medium and by applying a pressure on the opposite side of the substrate, aspirate the liquefied coating medium through the channels of the substrate. When only one channel covering should be carried out in part of its longitudinal projection, it is a disadvantage that due to the flow profile that is forcibly formed, different channels are covered up to a variable length.
    [003] If the coating product is pressed using pressure, it counts the force of gravity in the channels, then in this case it will have to be examined (usually with a sensor), when the liquid in the case of a complete coating of the channels starts to flow on the top side. In the case of a coating on a part of the longitudinal projection of the channels, the height of the liquid column of the coating product inside the channels will be determined by sensors. This process, however, does not work when the substrate consists of conductive or semiconductor materials, such as metals or silicon carbide.
    [004] Another disadvantage is that the coating products generally contain ceramic particles that exert an abrasive action and in the pumping for the transportation of the coating product (for example, piston pumps) produce high wear.
    Petition 870180058292, of 07/05/2018, p. 5/88
    2/35 [005] The object of the present invention was to provide an arrangement for coating substrates, which does not present the above mentioned disadvantages in the prior art.
    [006] This task will be solved by a provision for coating substrates with liquefied coating products 113, 213, which has a cylinder 102, 202 filled with liquid 103, 203 with a piston 101,201, with cylinder 102, 202, filled with liquid, it communicates with a container 112, 212 in which a displacement body 111, 211 is arranged in such a way that the displacement body 111, 211, in the movement of piston 101, 201 through liquid 103, 203 will be proportionally moved and the container 112, 212 communicates with the feeding device 122, 222 to the substrate 121, 221, with the displacement body 111, 211 acting on the liquid coating medium 113, 213, so that a change is produced proportional to the filling level of the liquefied coating medium 113, 213 in the coating device 122, 222.
    Brief Description of the Invention [007] Arrangement for coating substrates to produce exhaust gas cleaning catalysts, especially for motor vehicles, which are cylindrical bearing bodies each having two front faces 301, a side face 302 and an axial length L , being traversed from the first front face to the second front face by a variety of channels 310, with liquid coating products that have a liquid-filled cylinder with a piston, and the cylinder, filled with liquid, communicates with a container, in which a displacement body is positioned in such a way that the displacement body, when the piston moves through the liquid, will be moved proportionally and the container communicates with the
    Petition 870180058292, of 07/05/2018, p. 6/88
    3/35 coating device for the substrate, the displacement body acting on the liquefied coating product, so that a proportional change in the filling level of the liquefied coating product is produced inside the feeder device.
    [008] Arrangement in accordance with point 1, the piston being moved by an electric actuator.
    [009] Arrangement according to point 1 or 2, where liquid is inside the displacement body and the liquid coating product is outside, and the closed outer sides of the displacement body act on the product of coating.
    [0010] Arrangement according to point 1 or 2, where the liquid is outside the displacement body and the liquid coating product is inside, and the closed inner sides of the displacement body act on the coating product.
    [0011] Arrangement according to one or more of the points 1 to 3, the coating device being provided with sensors that react to the filling level of the liquid coating product and that are connected with a control unit that controls the piston movement, processing the signal transmitted by the sensors to control the movement of the piston, so that a reproducible filling level is ensured within the feeder device, regardless of the existing amount of liquid medium.
    [0012] Arrangement according to one or more of the points 1 to 5, featuring a sensor to control the position of the displacement body.
    [0013] Arrangement according to one or more points 1 to 6, which have a sensor for controlling the liquid level of the liquid coating product inside the substrate.
    Petition 870180058292, of 07/05/2018, p. 7/88
    4/35 [0014] Process for coating substrates with the steps:
    - provide the substrate;
    - provide a provision according to one of points 1 to 7;
    - position the substrate in the feeder device;
    - start the movement of the piston, so that the liquid displaced by the piston is moved in a proportional direction with the displacement body in relation to the quantity of the displaced liquid volume;
    - actuation of the displacement body on the coating product, with a volume of the coating product, proportional to the movement of the displacement body, producing a displacement, with a corresponding increase in the level of filling of the coating product within the coating device;
    - penetration of the coating product in the substrate channels to the desired level of filling, that is, the coated length of the channels, in a direction proportional to the displaced volume of the coating product;
    - removal of the coating product from the substrate channels, the coating being produced within the channels. [0015] 9. Process for coating substrates according to point 8, with steps
    - provide the substrate;
    - provide a provision according to one of points 1 to 7;
    - position the substrate in the feeder device;
    - start the movement of the piston, so that the liquid displaced by the piston is moved in proportion to the displacement body in relation to the amount of liquid volume
    Petition 870180058292, of 07/05/2018, p. 8/88
    5/35 displaced;
    - actuation of the displacement body on the coating product, with a volume of the coating product, proportional to the movement of the displacement body, producing a displacement, with a corresponding increase in the level of filling of the coating product within the coating device;
    - determining the reach of the first filling level of the coating product;
    - new or continued movement of the piston, so that the liquid displaced by the piston moves the displacement body in proportion to the amount of displaced liquid volume;
    - actuation of the displacement body on the coating product, with a volume of the coating product, proportional to the movement of the displacement body, being displaced, resulting in a corresponding increase in the level of filling of the coating product within the coating device up to a second filling level of the coating product, with which the coating product penetrates the substrate channels to the desired filling level, that is, the coated length of the channels, in proportion to the displaced volume of the product coating;
    - removal of the coating product from the substrate channels, with the coating forming within the channels. [0016] 10. Process according to point 9, with the second filling level of the coating product being located inside the substrate.
    [0017] 11. Process according to one or more of the points 8 to
    10, where a substrate moistened or impregnated with an acid, bleach or saline solution is disposed in the coating device.
    Petition 870180058292, of 07/05/2018, p. 9/88
    6/35 [0018] 12. Process according to one or more of the points 8 to
    11, with the removal of the coating product being produced by applying a sub-pressure to the lower front face of the substrate.
    [0019] 13. Coated substrate for the formation of exhaust gas filters for motor vehicles, in which the channels have at least one catalytically active coating internally, the coated length of the channels being less than the axial length L and in the case of at least 95% of the channels of a substrate, the coated length of the channels does not differ by more than 5 mm, preferably 3 mm, in a reciprocal direction.
    [0020] 14. Substrate coated according to point 13, with a porosity of 40% to 75%.
    [0021] 15. Substrate coated according to point 13 or 14 with an average pore size greater than 7 pm.
    [0022] 16. Substrate coated according to one of the points 13 to 15 with a wall thickness from 0.002 inches to 0.1 inch.
    [0023] 17. Substrate coated according to one of the points 13 to 16, with cell density of 100 to 400 cells per inch 2 .
    [0024] 18. Substrate coated according to one of the points 13 to 17, with the channels internally having at least one first catalytically active coating and a second catalytically active coating, which - with the lengths of the channels, coated with the first catalytically active coating and with the second catalytically active coating - is less than the axial length L of the substrate, and at least in 95% of the channels of a substrate, the lengths of the channels, coated with the first catalytically active coating and with the second catalytically active coating, do not differ by more than 5 mm, preferably 3 mm, and the distance between the two
    Petition 870180058292, of 07/05/2018, p. 10/88
    7/35 coatings, in at least 95% of the substrate channels, is a maximum of 5 mm, advantageously a maximum of 3 mm, especially being a maximum of 1 mm.
    [0025] 19. Coated substrate, according to point 18, the first coating being an SCR catalyst and the second coating being an oxidation catalyst.
    [0026] 20. Substrate coated according to point 19, the oxidation catalyst being a noble metal of Group VIII of the periodic system of the elements platinum, palladium, ruthenium, rhodium, gold, iridium or their mixtures.
    [0027] 21. Substrate coated in accordance with point 20, the oxidation catalyst being applied on a porous, solid base, advantageously a porous inorganic oxide, such as aluminum oxide or silicon dioxide.
    [0028] 22. Substrate coated according to point 19, the SCR-catalyst containing an oxide, chosen from the group titanium dioxide, vanadium pentoxide, tungsten trioxide, ceroxide, zirconium oxide or mixtures thereof.
    [0029] 23. Substrate coated according to point 22, with the SCR catalyst containing titanium dioxide as a matrix of up to 10% by weight of vanadium pentoxide and up to 20% by weight of wolfram trioxide.
    [0030] 24. Substrate coated according to one of points 19 to 23, with the first coating being an SCR catalyst, containing vanadium pentoxide and aluminum oxide, and the second coating being a oxidation catalyst containing platinum, gold, palladium and aluminum oxide.
    [0031] 25. Substrate coated according to one of points 20 to 23, the first coating being a catalyst - SCR containing titanium dioxide, vanadium pentoxide and tungsten trioxide,
    Petition 870180058292, of 07/05/2018, p. 11/88
    8/35 and the second coating is an oxidation catalyst containing platinum and aluminum oxide.
    [0032] 26. Substrate coated according to one of points 19 to 21, the first coating being a catalyst - SCR, containing a composition of a zeolite, especially a zeolite replaced with iron or copper, and the second coating contains an oxidation catalyst, which contains platinum and aluminum oxide.
    [0033] 27. Substrate coated according to one of points 19 to 21, the first coating being the SCR catalyst containing a zeolite-beta, replaced with iron, with an ammonia-holding capacity of at least 20 milliliters of ammonia per gram of catalyst material, the second coating being an oxidation catalyst containing platinum and aluminum oxide.
    [0034] 28. Substrate coated according to one of points 19 to 21, the first coating being the SCR catalyst, containing a composition of a zeolite, especially a zeolite substituted with iron or copper, and the second coating is an oxidation catalyst containing palladium and / or rhodium, as well as aluminum oxide. [0035] 29. Use of the provision according to one or more of points 1 to 7 of the process according to one or more claims 8 to 12 to produce exhaust gas filters for motor vehicles.
    [0036] 30. Process for cleaning an exhaust gas stream, containing nitric oxides and / or hydrocarbons and / or particles, containing a coated substrate according to one of the points 13 through 28.
    [0037] 31. Arrangement for cleaning an exhaust gas stream, containing nitric oxides and / or hydrocarbons and / or particles that have a coated substrate according to one of the points 13 to 28.
    Petition 870180058292, of 07/05/2018, p. 12/88
    9/35
    Detailed Description of the Invention [0038] Advantageously, piston 101, 201 will be driven by an electric actuator 100, 200. For this purpose, for example, an electric motor, equipped with a gear wheel, that drives a piston provided with a rack.
    [0039] Substrate 121, 221 is generally known as a hollow substrate consisting of metals or ceramics and has at least one internal channel 110, 210, 310, commonly a variety of internal channels. Generally, substrates are essentially cylindrical bearing bodies, each having a cylinder axis, two front faces, a side face and an axial length L, being traversed from the first front face to the second front face by a variety of channels. These carrier bodies are also often referred to as hive bodies. Especially in the case of substrates, they can be pass-through hive bodies that can have a high cell density (number of internal channels per cross face) from about 10 cm -2 to 250 cm -2 , but can also be used wall flow filters. The substrate may consist, for example, of cordierite, mullite, aluminum titanate, silicon carbide or of metals such as steel, that is, noble steel. Advantageously, the substrate is a monolithic catalyst body, of cylindrical conformation, and is traversed by a variety of flow channels for the exhaust gases of the combustion engines, these channels located parallel to the axis of the cylinder. These monolithic catalyst carrier bodies are used on a large scale to produce exhaust gas catalysts for automobiles. The cross-sectional shape of the catalytic bearing bodies depends on the mounting requirements on the motor vehicle. Catalytic bodies of elliptical or triangular round cross section are very widespread. Flow channels typically have one session
    Petition 870180058292, of 07/05/2018, p. 13/88
    10/35 square cross and are arranged in a narrow lattice throughout the cross section of the catalyst body. Depending on the case of use, the density of the channels, that is, the cells of the flow channels, generally varies between 10 and 250 cm -2 . For the purification of exhaust gas from motor vehicles for passengers, catalytic bearing bodies with cell densities of about 62 cm -2 are still used today. Advantageously, the substrate is arranged in the liquid-tight coating device, which can be obtained for at least one seal. The seal can be hollow and in the application on top or in the insertion n the coating device can be filled with gas or liquid, closing tightly. The tightness of the connection can be controlled by a pressure or flow sensor.
    [0040] The displacement body 111, 211 is a hollow body that expands by applying corresponding pressure and contracts again and can be produced from a random elastic material such as rubber, plastic or metal, the material having to be inert in relation to liquid 103, 203 and liquid medium 113, 213.
    [0041] The liquid does not have to meet special requirements, but it should not have a corrosive or abrasive action and should not change its specifics under service conditions. For example, hydraulic oil or water are suitable.
    [0042] The liquefied coating product 113, 213 and, for example, a suspension or dispersion for coating automotive exhaust gas filters (washcoat), which contains catalytically active components or their precursors, as well as inorganic oxides such as aluminum oxide, titanium dioxide, zirconium oxide or their combinations, and the oxides can be endowed, for example, with silicon or lanthanum. As catalytically active components, vanadium oxides,
    Petition 870180058292, of 07/05/2018, p. 14/88
    11/35 chromium, manganese, iron, cobalt, copper, zinc, nickel or rare earth metals such as lanthanum, cero, prazeodim, neodymium, prometium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erium, tolium ytterbium or their combinations. As active catalytic components, noble metals such as platinum, palladium, gold, rhodium, iridium, osmium, ruthenium, as well as their combinations can also be used. These metals can also be present as alloys with each other or other metals or as oxides. In the liquid coating product, metals may also be present in the form of precursors, such as nitrates, sulfides or organils of the noble metals mentioned, as well as their mixtures, which may be used especially palladium nitrate, palladium sulfide, platinum nitrate, sulfite platinum or Pt (NH3) 4 (NO3) 2 by calcination at about 400 ° C to about 700 ° C can then be obtained from the catalytically active component precursor. To coat a substrate for the production of exhaust gas catalysts for motor vehicles, a suspension or dispersion of an inorganic oxide can be initially coated and, in a next coating step, a suspension or dispersion containing a or several catalytically active components. The liquid coating product can, however, also contain both components. The liquid coating medium often has a content of solid substance between 35 and 52%, as well as viscosities between 15 and 300 cps.
    [0043] The geometry of the displacement body 111, 211 can be adapted to the internal shape of the container 112, 212 required. Thus, on the one hand, a folding bellows with a square or circular basic face can be used in a corresponding internal shaped container and at the same time it can act as a hydraulic and expandable stamp on the liquid coating medium 113, 213. likewise the displacement body 111,211 can also
    Petition 870180058292, of 07/05/2018, p. 15/88
    12/35 be shaped like a spherical rubber bubble that acts, without a special adaptation to the internal geometry of the container, on the liquid coating medium 113, 213. The displacement body 111, 211 can essentially fill the container completely, however, this absolutely need not occur as long as the displacement body 111, 211 is large enough to fill the coating device 122, 222 and the volume to be coated on the substrate 121,221 with a liquid coating medium. The container 112, 212 - not taking into account the openings with which it communicates with the cylinder 102, 202 and the coating device 122, 222, must be sealed or closed in relation to the environment. Advantageously the container 112, 212 has pipelines for liquid coating product 113 or liquid 203 and can advantageously be opened or disassembled for maintenance and cleaning purposes.
    [0044] In this case, cylinder 102, 202 can communicate in different ways with container 112, 212. On the one hand, the liquid can be found inside the displacement body 111 and the coating product 113 can be found outside of the displacement body 111 in the container 112, so that the closed outer sides of the displacement body 111 act on the liquid coating means 113. In this case, pressure will be generated in the container, by which the liquid product 113 is transported by a opening out of the container on a line 114 to the coating device 122.
    [0045] In another embodiment of the invention, liquid 203 can be located outside displacement body 211, in container 212, while liquid coating product 213 can be located inside displacement body 211, so that the closed inner sides of the displacement body 211 act on the liquid coating product 213 and this liquid coating product 213 is carried through an opening out of the container 212, passing
    Petition 870180058292, of 07/05/2018, p. 16/88
    13/35 by a line 214 into the coating device 222. [0046] In another embodiment of the invention, the coating device 122, 222 is provided with sensors 123, 223 that react to the filling level of the liquid coating product 113, 213.
    [0047] Suitable sensors can be a refractory index sensor that reacts in relation to the modification of the refractive index in the increase of the liquid level, with conductivity sensor, or simply, a photoelectric cell.
    [0048] Advantageously, these sensors are joined with a control unit 125, 225 that controls the movement of the piston 101, 201 and processes the signal transmitted by sensors 123, 223 to control the movement of the piston, so that it can be ensured a reproducible filling level 130, 230 of the liquid coating product 113, 213 in the coating device 122, 222 regardless of the quantity of liquid coating product 113, 213. If several substrates 121, 221 are sequentially coated, then the with each coating process, the amount of the liquid coating product 113, 213 in the arrangement, so that with equal procedural parameters, the level of the liquid in the coating device 122, 222 is reduced further. By using sensors 123, 223 this effect can be compensated and an unchanged liquid level can also be ensured when refilling the liquid coating product. By using a suitable control unit 125, 225, which processes the signal from the sensors and controls the actuator 100, 200, preferably the electric one, used to activate the piston 130, 230, the determined filling level 130, 130 of the product liquid coating 113, 213 on the coating device 122, 222 can be adjusted automatically.
    [0049] The arrangement according to the invention can, in addition,
    Petition 870180058292, of 07/05/2018, p. 17/88
    14/35 present a sensor to control the position of the displacement bodies. For this, for example, a photoelectric cell 124, 224, an ultrasound sensor or a mechanical sensor (for example, rocker switch) that controls the extension, that is, the position of the displacement body, can be used. If the displacement body shows a leak, this can be verified because the displacement body, in this case, no longer completely returns to its exit position or expands completely. A sensor of this kind will then indicate an occurrence of this nature.
    [0050] The arrangement according to the invention may, in addition, have a sensor for controlling the liquid level 123, 232 of the liquid coating product within the substrate 121, 221. In this way, the product feeding may be interrupted of liquid coating on the substrate when the substrate has been coated to the desired substrate length. A sensor of this type, however, is not always necessary, as it is an advantage of the arrangement according to the invention that this control no longer needs to be carried out when the internal volume of the substrate is known. However, it may be advantageous for a sensor of this type to be present to calibrate the arrangement.
    [0051] The invention also relates to a coated substrate to produce exhaust gas filters, that is, exhaust gas purification catalysts, especially for motor vehicles, in which the channels internally have a catalytically active coating, the coated channel length less than axial length L and in the case of at least 95% of the channels of a substrate, the coated channel length is no more than 5 mm, preferably 3 mm, diverging reciprocally. Exhaust gas filters in the sense of the invention can be produced either from hive-shaped bodies with flow through, which produce only
    Petition 870180058292, of 07/05/2018, p. 18/88
    15/35 chemical, but not mechanical, purification of the exhaust gases (such as soot separation), but also, for example, of wall flow filters, with the exhaust gases being conducted by the porous walls of the flow channels, with which, in addition to a chemical purification, there is also a purification, a mechanical purification of the exhaust gases will also take place.
    [0052] Often, the substrate channels are not coated in the entire axial length L, however, as described above, only in part of its length. It is advantageous, in this case, that the length, in which the channels are lined internally, is possibly even across all channels. After the internal coating of the substrate channels with the arrangement according to the invention, these substrates will then be dried and subjected to at least a heat treatment.
    [0053] The ready-made substrates, suitable for production of exhaust gas filters for motor vehicles, have an especially uniform coating that is characterized by the fact that the coated lengths of the different channels do not diverge reciprocally and more than 5 mm, especially 3 mm, which applies to a minimum of 95% of all channels on a substrate, advantageously at least 99% of all channels on a substrate, especially 100% of all channels. Due to the action of defects, it may happen that in different channels of a substrate, the flow and pressure ratios present a marked divergence from the other channels, which makes the liquid coating product penetrate with considerably greater or easier difficulty and under the conditions of coating, the coating being made in a shorter or longer length of the different channels. In this case, the desired equal coating length can be obtained only in a part of the channels, but generally in more than 95% of all channels.
    Petition 870180058292, of 07/05/2018, p. 19/88
    16/35 channels.
    [0054] The invention also encompasses a process for coating substrates that is carried out with this arrangement, that is, together. [0055] This process for coating substrate has the following steps:
    - provide the substrate;
    - providing a provision according to the invention;
    - providing the substrate in the coating device;
    - start the piston movement, so that the liquid displaced by the piston moves the displacement body in proportion to the amount of displaced liquid volume;
    - actuation of the displacement body on the coating product, with a volume of the coating product, proportional to the movement of the displacement body, producing a displacement, with a corresponding increase in the level of filling of the coating product within the coating device;
    - penetration of the coating product in the substrate channels to the desired level of filling, that is, the coated length of the channels, in a direction proportional to the displaced volume of the coating product;
    - removal of the coating product from the substrate channels, the coating being produced within the channels. [0056] The removal of the coating product from the substrate channels is produced by the application of a pressure drop, with which the excess coating suspension, after the supply of coating product to the substrate is interrupted, will be removed.
    [0057] In accordance with the present invention, removal may be
    Petition 870180058292, of 07/05/2018, p. 20/88
    17/35 produced by the retraction of piston 101,201, since this way the filling level of the coating product in the coating device 122, 222 and the substrate 121,221 will be reduced, with which the pressure drop and the coating product are generated surplus is removed from the substrate channels. However, removal of the coating product can also be carried out according to methods known in the art, which will be described below.
    [0058] For example, for this purpose, a lower pressure may be applied to the lower front faces, with, for example, a valve being opened towards an evacuated pressure vessel. At the same time, from the upper front faces of the substrate, air or other product for the coated substrate and for the coating suspension, in the form of inert gas such as nitrogen, can be conducted in a depressurized manner to the upper front faces. As the pressure in the sub-pressure vessel lowers, so does the gas flow rate in the substrate channels. Such a procedure is described, for example, in European patent EP-A1-941763, page 4, line 56 through page 5, line 36 to which reference is made.
    [0059] But the procedure can also be done in reverse, and the vacuum can be applied to the upper front faces and the gas supply can be applied to the lower front faces of the substrates. In the same way, this supply can also be exchanged, or if already, inverted, once or several times, which produces - according to US-B-7094728 - a more uniform coating of the channels on the substrates.
    [0060] Instead of applying a sub-pressure, (aspiration-removal of substrates) an over-pressure (removal by blowing the substrates) can also be applied. For that, pressurized air, another inert gas in relation to the substrates
    Petition 870180058292, of 07/05/2018, p. 21/88
    18/35 coated and the coating suspension, like nitrogen, will be applied to the upper or lower front face. Those front faces that are opposite the front faces subjected to the gas pressure, need to ensure a sufficient flow of the gas. For this, a sub-pressure (vacuum) may be applied, but this is not absolutely necessary. However, on the opposite sides, a gas or liquid pressure should also not be applied to ensure a gas flow rate that is sufficient to remove excess coating suspension from the substrate channels. Similar to the process outlined above, according to the document US-B-7094728 in this case, it may also be the overpressure applied alternately by the upper and lower front faces.
    [0061] After removing the excess coating suspension, the substrates are also dried and subjected to a heat treatment (calcined).
    [0062] Before heat treatment, substrates can be dried. This measure is optional because in the next heat treatment, the substrate is even dry.
    [0063] Therefore, after removing the coating device, the substrate channels can be crossed, for example, from below, contrary to the force of gravity, with preheated air, with temperatures between 20 and 150 ° C and speeds above 4, preferably 7-10 m / s, for the duration of 5 to 20 s. With this form of pre-drying before heat treatment (calcination), an obstruction of the flow channels can be avoided, that is, a narrowing of the channels at the lower end of the substrates, which is often observed in the case of very high loads. This additional measure makes it possible to load the substrate with a greater amount of coating than the conventional one, without the flow channels closing or narrowing during the drying and calcination process. The dispersion concentration
    Petition 870180058292, of 07/05/2018, p. 22/88
    19/35 coating on the substrate can therefore be increased with this measure.
    [0064] Generally, the heat treatment is carried out at a temperature of about 150 ° C to about 800 ° C, especially at about 200 ° C to 700 ° C, advantageously at about 250 ° C to about 600 ° C. This heat treatment time is about 1 to 5, advantageously 2 to 3 hours and a heating rate of about 10 ° C / min to about 50 ° / C / min, especially about 20 ° C / min up to about 40 ° C / min, advantageously about 35 ° C / m in up to about 45 ° C / min, the heating rates referring to the oven temperature. The heating rates can be produced in the heat treatment in batches through a corresponding and controlled heating of the oven or in a continuous process by controlling the advance speed of the substrate, through a tunnel oven that is operated with a fixed temperature profile. .
    [0065] And a conformation of the process of the invention, before being disposed in the coating device, the substrate will be wetted. The substrates have a considerable suction capacity for liquids in a dry state. Especially in substrate coating with large number of cells, with cell densities of 120 -2 and above, this can result in a solidification of the coating product and an obstruction of the flow channels already during filling. Therefore, it is advantageous to wet the substrates before coating. In this case, pre-impregnation with acids, bases or salt solutions can be treated. Pre-impregnation facilitates the formation of the coating on the channel walls according to the sol-gel method. By contact of the coating dispersion with the pre-impregnated channel walls, the pH value of the dispersion will be shifted. In this way, the dispersion will be transformed into a gel.
    [0066] In another configuration of the process of the invention, the body of
    Petition 870180058292, of 07/05/2018, p. 23/88
    20/35 displacement acts in such a way on the coating medium that a volume of the coating product is displaced which is proportional to the movement of the displacement body, an increase corresponding to the filling level of the coating product being produced within the coating device , until a first level of filling of the coating product has been achieved in the coating device. This first level of filling will be determined so that before the start of each substrate coating process, the same level of liquid is always present within the coating device, so that even in the case of a smaller amount of liquid coating medium a reproducible and coated length of the channels can be achieved. The reach of the first filling level can be verified by means of a signal transmitted by sensors 123, 223.
    [0067] Once the first level of filling of the coating product has been reached, the volume required to coat the substrate (ie, that which is necessary to coat the inner sides of the substrate channels to the desired coated length of the channels) coating product will be introduced into the channels. For this purpose, the displacement body acts in such a way on the coating product that a volume proportional to the movement of the displacement body displaces the coating product, producing a corresponding increase in the level of filling of the coating product in the coating device, or that is, the penetration of the coating product into the substrate channels, up to the desired filling level, that is, the coated length of the channels, in proportion to the displaced volume, to a second filling level of the coating product within the coating device. coating has been achieved. The reach of the second fill level can be checked using a sensor. While
    Petition 870180058292, of 07/05/2018, p. 24/88
    21/35 the first level of the coating product filling is found inside the coating device 122, 222, the second level of the coating product filling is located inside the substrate 121, 221, or at least in the same plane, preferably, however, above the upper front face of the substrate 121, 221. When the second level of filling is located inside the substrate, a coated length of the substrate will be achieved that is less than its axial length L. If the second level of filling product of the coating product is situated in the same plane, preferably, however, above the upper front face of the substrate 121, 221, then the inner side of the substrate channels will be coated over the entire axial length L.
    [0068] Advantageously, the control of the second level of filling will be carried out by a sensor, however, only for the calibration, that is, the adjustment of the parameters for the control of the set. When these parameters are known, then identical substrates can be coated in reproducible form with the same parameters, without controlling the second level of filling with a sensor at each coating process.
    [0069] Then, there is air emotion of the coating product (surplus) of the substrate channels, when the coating is formed inside the channels. The substrates obtained will then also be dried and subjected to a heat treatment as described above.
    [0070] The invention therefore also covers a process for coating substrate with the following steps:
    - provide the substrate;
    - provide a set according to the invention;
    - position the substrate in the coating device;
    - start the piston movement so that the liquid
    Petition 870180058292, of 07/05/2018, p. 25/88
    22/35 displaced by the piston is moved proportionally with the displacement body to the amount of displaced liquid volume;
    - actuation of the displacement body on the coating product, with a volume of the coating product, proportional to the movement of the displacement body, producing a displacement, with a corresponding increase in the level of filling of the coating product within the coating device;
    - fixing the reach of the first level of the coating product;
    - restart or continued movement of the piston, so that the liquid displaced by the piston moves the displacement body in proportion to the amount of the displaced liquid volume;
    - actuation of the displacement body on the coating product, a volume of the coating product being displaced, proportional to the movement of the displacement body and an increase corresponding to the level of filling of the coating product in the coating device to a second level being produced of the coating product, with which the coating product penetrates the substrate channels to the desired level of filling, that is, up to the coated length of the channels, in proportion to the displaced volume of the coating product;
    - removal of the coating product from the substrate channels, with the coating forming within the channels. [0071] The present invention therefore allows reproducible coated lengths of the substrate channels with reduced deviation from the coated lengths within the substrates, offering a
    Petition 870180058292, of 07/05/2018, p. 26/88
    23/35 coating set that also shows reduced wear in the case of coating products with a highly abrasive action. The substrates (that is, coated and heat treated, that is, calcined), ready and destined for the production of exhaust gas filters for motor vehicles, have an especially uniform coating that is characterized by the fact that the coated lengths of the different kennels between channels differ by no more than 5 mm, especially 3 mm, conversely, which applies to at least 95% of all channels of a substrate, advantageously at least 99% of all channels of a substrate substrate, especially at 100% of all substrate channels. By means of a defect, it can happen that in different channels of a substrate, the pressure flow conditions present a marked deviation from the other channels, which makes the liquid coating product penetrate considerably more difficult or easier and in the coating conditions, the coating is done either in a shorter length or a longer length of the different channels. In such cases, the desired uniform coating length can only be achieved in one part of the channels, however, generally in more than 95% of all channels of a substrate. The coated length of the channels, in this case, is less than the axial length L. The uniform coating length has the advantage that in this way two coatings can be applied to the opposite opposite sides of the respective substrate. If these coatings are different and need to be separated from each other (for example, because the coating components react to each other in an undesired manner or impair their effect in a reciprocal sense) then a distance must be maintained between the two coatings and must be ensured in a reliable way. In this case, it is advantageous that the
    Petition 870180058292, of 07/05/2018, p. 27/88
    24/35 coating length can be adjusted with the greatest precision and reliability so that only a reduced substrate length has to be used to provide the distance between the coatings, a distance that remains uncoated and, therefore, without function. In this way, an improved exhaust gas cleaning can be produced without having to reduce the load of the coated substrate.
    [0072] In a particularly advantageous way, with the device and the process of the invention, therefore, a coated substrate can be used for the production of exhaust gas for motor vehicles, in which the channels internally have at least one first action coating. active catalytic and a second catalytically active coating that with the first catalytically active coating and the second catalytically active coating on the lengths thus coated of the channels, is less than the axial length L of the substrate and with a minimum of 95% of the channels of a substrate, which with the first active catalytic coating and the second active catalytic coating are applied to the channel lengths do not differ by more than 5 mm, preferably 3 mm, and the distance between the two coatings by at least 95 % of the substrate channels is a maximum of 5 mm, advantageously a maximum of 3 mm, especially advantageous a maximum of 1 mm.
    [0073] Figures 3A and 3B show a substrate 300 thus coated. The substrate has two front faces 301, a side face 302 and a length L, being traversed by a large number of channels 310 between the front faces. In this case, in a first partial length 303 the channels have a first coating 330 and in another partial length 305, they have a second coating 340, shown in figure 3A with thickened lines that form two zones, always provided with a first and a second
    Petition 870180058292, of 07/05/2018, p. 28/88
    25/35 coating. The distance 304, existing between the two zones 303, 305 will preferably be minimized, for which a coating length to the greatest uniform extent in the two zones 303, 305 is necessary in order to avoid overlap. This distance 304, without coating, according to the invention and has a maximum of 5 mm, advantageously a maximum of 3 mm, especially a maximum of 1 mm. In this figure 3A a substrate 300 with circular front faces is shown. Naturally, the front faces can also have rectangular, square, oval, triangular, hexagonal or other polygonal shapes, which produces a varied spatial shape of the substrate, for example, prism or parallelepiped shape.
    [0074] The partial lengths that have the first 330 and the second 340 coating, can be the same or different.
    [0075] The shapes of the first and second coatings are advantageously varied. According to a conformation of the invention, at least one of the coatings is an oxidizing catalyst or the SCR catalyst. In an especially advantageous embodiment of the invention the first coating 330 is an SCR catalyst and the second coating 340 is an oxidizing catalyst.
    [0076] The oxidizing catalyst advantageously contains a noble metal from group VIII of the periodic system of elements, such as platinum, palladium, ruthenium, rhodium, gold, iridium or mixtures thereof, advantageously on a fixed porous base, usually a porous inorganic oxide , such as aluminum oxide or silicon dioxide. The platinum is particularly advantageous in a porous aluminum oxide as a base. This coating of the coating substrate generally has an amount of 0.1 to 10 g / ft 3 of platinum.
    [0077] In a specific conformation of the invention, the catalyst
    Petition 870180058292, of 07/05/2018, p. 29/88
    26/35
    SCR contains an oxide, selected from the group of titanium dioxide, vanadium pentoxide, tungsten trioxide, wax oxide, zirconium oxide or mixtures thereof.
    [0078] In another specific conformation of the invention, the SCR catalyst contains titanium dioxide as a matrix of up to 10% by weight of vanadium pentoxide and up to 20% by weight of tungsten trioxide.
    [0079] In another specific conformation of the invention, the first coating features a SCR catalyst containing vanadium pentoxide and aluminum dioxide, while the second coating contains an oxidizing catalyst containing platinum, gold, palladium or aluminum oxide. In this case, the second coating preferably has an amount of 0.1 to 10 g / ft 3 of platinum, gold, or combinations thereof.
    [0080] In another specific embodiment of the invention, the first coating contains an SCR-catalyst, containing titanium dioxide, vanadium pentoxide and tungsten trioxide, while the second coating contains an oxidizing catalyst, containing platinum and aluminum oxide. In this case, the second coating preferably has an amount of 0.1 to 10 g / ft 3 of platinum.
    [0081] In another specific embodiment of the invention, the first coating contains an SCR catalyst with a composition of a zeolite, especially a zeolite substituted by iron or copper, and the second coating contains oxidizing catalyst containing platinum and aluminum oxide. In this case, the second coating preferably has an amount of 0.1 to 10 g / ft 3 of platinum.
    [0082] In another specific conformation of the invention, the first coating contains an SCR catalyst with an iron substituted beta zeolite, with an ammonia storage capacity of at least 20 ml of ammonia per gram of catalyst material and the second coating contains a oxidizing catalyst,
    Petition 870180058292, of 07/05/2018, p. 30/88
    27/35 containing platinum and aluminum oxide. In this case, the second coating preferably has an amount of 0.1 to 10 g / ft 3 of platinum.
    [0083] In another specific embodiment of the invention, the first coating of a SCR-catalyst, containing a composition of a zeolite, especially a zeolite substituted by iron or copper, the second coating containing an oxidizing catalyst, containing palladium and / or rhodium, as well as aluminum oxide. In this case, the second coating preferably has an amount of 0.1 to 10 g / ft3 of palladium, rhodium or combinations thereof.
    [0084] The coated substrates, suitable for the production of exhaust gas filters for motor vehicles, have porosities above 40%, generally 40% to 75%, especially 45% to 60%. Average pore sizes are at least around 7 pm, for example, 7 pm to 34 pm, preferably more than 10 pm, especially at 10 pm to 20 pm, or 11 pm to 19 pm. Particularly advantageously, suitable substrates for the production of exhaust filters for motor vehicles have average pore sizes from 11 to 33 pm and porosity from 40% to 60%.
    [0085] The cell densities of substrates generally range up to 700 or more per inch 2 (square inch), with the use of markedly lower cell densities of approximately 7 to 70 being common, especially 100 to 400 cells per square inch (400 lines per square inch correspond to approximately 62 cells per square centimeter), and the shapes of the cells may have rectangular, square, oval, circular, triangular hexagonal shapes or other polygonal shapes. Cell density represents a measure for a number of channels per spatial unit from the top view, channels that
    Petition 870180058292, of 07/05/2018, p. 31/88
    28/35 run through the substrates in parallel to the longitudinal axis. The thickness of the walls, that is, the thickness of the walls that separate the channels from each other, are around 0.002 and 0.1 inch (about 0.005 cm to about 0.25 cm), preferably 0.002 to 0.015 inch (about 0.005 cm to 0.038 cm). Advantageous substrates with a wall thickness are about 0.01 inch to 0.02 inch (approximately 0.0254 cm to 0.058 cm), preferably with a porosity of 40% to 60% and an average grain size of 10 pm to 20 pm.
    Detailed Description of the Drawings [0086] Figure 1 - shows a set of the invention for coating channels 110 on a substrate 121 that features a piston 101, activated by an actuator 100, this piston integrated in a cylinder 102, which is filled with liquid 103 and by means of a connection 104 of the cylinder 102 with the displacement body 111, allows the activation of the displacement body 111 in the container 112, which is filled with liquid coating product 113, have two conductive segments 114, 116 with a stepped valve 115 interposed between the container 112 and the coating device 122, the coating device 122 with the substrate 121 and with the sensors 123 provided therein and intended to determine the first filling level 130. With other sensors 124 it will be controlled the displacement volume of the coating product 113, i.e. the condition of the displacement body 111 in the container 112.
    [0087] The values determined by sensors 123, 124 will be transmitted to a control unit 125, which controls an actuator 100 and, therefore, piston 101.
    [0088] The stepped valve 115 activates on the one hand in the direction of the filling flow 117, the filling of the coating device 122 up to the first filling level 130 with
    Petition 870180058292, of 07/05/2018, p. 32/88
    29/35 coating 113, and, on the other hand, after reaching the second fill level 132 on the substrate 121, in the backflow and direction 118, it activates the connection for the drain pump 119 and for the connection line 120 with a reserve container for surplus coating product 113 and to be made available for later use.
    [0089] All necessary control commands in this regard will preferably also be transmitted via a central control unit 125.
    [0090] Figure 2 - shows an arrangement of the invention for coating channels 210 on a substrate 221 that has a piston 201 in a cylinder 202, activated by an actuator 200, which cylinder is filled with liquid 203 and by means of a connection 204 of cylinder 202 communicates with container 212, which contains displacement body 211, containing liquid coating product 213 and which, via two conductive segments 214, 216 with a stepped valve 215, is connected with a coating 222 having a substrate 221 and sensors 223 for determining the first fill level 230 of coating product 213.
    [0091] With other sensors 224 in container 212, the displacement volume of the coating product will be controlled, that is, the condition of the displacement body 211 inside container 212. The values determined by sensors 223, 224 will be transmitted to a command 225, which in turn controls actuator 200 and, therefore, piston 201.
    [0092] The stepped valve 215 drives, on the one hand, in the supply direction 217, the filling of the coating device 222 to a first filling level 230 with coating product 213 and, on the other hand, once the second level is reached in
    Petition 870180058292, of 07/05/2018, p. 33/88
    30/35 filling 232 on substrate 221, drives in the direction of reflux 218 in the form of a connection for the discharge pump 219 and up to the connection line 220 to the reserve container provided for surplus coating products 213 and for its availability for later use. All necessary control commands are also preferably transmitted by the central control unit 225.
    [0093] Figures 3A and 3B - show, in perspective, a substrate 300 that in its central part presents an open cut in three planes to allow the visualization of the coating structure according to the invention.
    [0094] The substrate 300, coated in two zones of partial length 303, 305, has two front faces 301, a side face 302, as well as a length L, being crossed by a large number of channels 301 between the two front faces 301 .
    [0095] In a first zone of partial length 303, 305 a first coating 330 is applied to channels 310 while another zone of partial length 305 has the second coating 340.
    [0096] Between the two partial length zones 303, 305, respectively between the two linings 330 and 340 there is a zone 304 free of coating, as shown especially in figure 3B in enlarged form.
    Brief Description of Drawings
    Figure 1
    [0097] 100 actuator [0098] 101 piston [0099] 102 cylinder [00100] 103 liquid [00101] 104 connection
    Petition 870180058292, of 07/05/2018, p. 34/88
    31/35
    [00102] 110 channels - on substrate 121 [00103] 111 displacement body [00104] 112 container [00105] 113 coating product [00106] 114 conductor segment [00107] 115 stepped valve [00108] 116 conductor segment [00109] 117 filling flow direction [00110] 118 reflux direction, to remove product from
    coating 113
    [00111] 119 discharge pump [00112] 120 connection line for the product reservoir of coating[00113] 121 substrate [00114] 122 coating device [00115] 123 sensor for filling level recording 130 [00116] 124 sensor for controlling the position of the
    offset 111
    [00117] 125 control unit [00118] 130 first filling level - 113 in the device coating 122 [00119] 132 second fill level - 113 on the substrate 121 Figure 2 [00120] 200 actuator [00121] 201 piston [00122] 202 cylinder [00123] 203 liquid [00124] 204 connection [00125] 210 channels - on substrate 221
    Petition 870180058292, of 07/05/2018, p. 35/88
    32/35
    [00126] 211 displacement body [00127] 212 container [00128] 213 coating product [00129] 214 conductor segment [00130] 215 stepped valve [00131] 216 conductor segment [00132] 217 filling direction [00133] 218 flow direction in flow of 213 [00134] 219 discharge and suction pump [00135] 220 connecting line to the reservoir for product from overlay 213
    [00136] 221 substrate [00137] 222 coating device [00138] 223 sensor to register the filling level 230 [00139] 224 sensor for controlling the position of the
    offset 211
    [00140] 225 control unit [00141] 230 first level of filling - in the filling device coating 222[00142] 232 second fill level - on substrate 221 Figure 3 [00143] 300 substrate [00144] 301 front face [00145] 302 side face [00146] 303 first zone of partial lengths [00147] 304 distance between the two partial lengths 303 and 305 [00148] 305 second zone of partial lengths [00149] 310 channels - on substrate 300 [00150] 330 first coating - on channels 310
    Petition 870180058292, of 07/05/2018, p. 36/88
    33/35 [00151] 340 second coating - in channels 310 [00152] L length - total substrate 300 Figure 4 [00153] 401 to 407 designate the seven process steps according to claim 5:
    [00154] 401
    Provide the substrate;
    [00155] 402 [00156] 403
    Provide the set to supply the substrate;
    Position the substrate in the coating device;
    [00157] 404
    Start the movement of the piston, so that the liquid displaced by the piston is moved in a proportional direction with the displacement body in relation to the quantity of the displaced liquid volume;
    [00158] 405 Action of the displacement body to move the coating product, aiming to raise the filling level of the coating product;
    [00159] 406 Penetration of the coating product in the substrate channels to the desired filling level in the channels;
    [00160] 407 Removal of the excess coating product when the coating is formed inside the channels.
    Figure 5 [00161] 501 to 509 designates the nine process steps according to claim 6:
    [00162] 501 Provide the substrate; [00163] 502 Provide a set for coating the substrate; [00164] 503 Position the substrate in the device in coating; [00165] 504 Start the piston movement, displacement of
    liquid and movement of the displacement body in a direction proportional to the volume of liquid displaced;
    Petition 870180058292, of 07/05/2018, p. 37/88
    34/35 [00166] 505 Activation of the displacement body to move the coating product to increase the filling level to a first filling level;
    [00167] 506 Determination of the reach of the first level of filling;
    [00168] 507 Renewed or continued movement of the piston and displacement body;
    [00169] 508 Performance for displacing the coating product to the second filling level;
    [00170] 509 Removal of the excess coating product, when the coating is formed inside the channels.
    Example 1 [00171] Beehive-shaped body with flow through, having a length of 101.6 mm and oval cross section with a collateral axis of 86 mm and a lateral axis of 131 mm and a cell density of 62 cm -2 of cordierite are coated with a platinum suspension based on aluminum oxide (platinum obtained according to example 1 of European patent EP 957064) will be coated in water with a content of solid substance of 35% by weight as a coating product. For this, a set will be used according to figure 2. The height of the coating is 45.8 mm. The coated substrates will be dried after coating with an air stream of 100 ° C, being calcined at 500 ° C. For every thousand coated carrier bodies, after coating, the length that was coated will be determined by means of X-rays, after coating, and with a digital image evaluation, the coated lengths of the channels will be determined and the difference in coatings will be formed. maximum and minimum. The difference is always less than 3.0 mm. 200 coated bearing bodies will be examined. The coating device as shown in figure 2 continues to operate. For the realization
    Petition 870180058292, of 07/05/2018, p. 38/88
    35/35 out of 325,000 coating processes no maintenance or repair interruption is required.
    Example 2 [00172] The same procedure as example 1 was used, but a set was used according to figure 1. The differences in maximum and minimum lengths were always less than 2 mm. 170 coated bearing bodies are examined. To carry out 225,000 coating processes, an interruption for maintenance or repair is not necessary.
    Petition 870180058292, of 07/05/2018, p. 39/88
    1/4
    权利要求:
    Claims (6)
    [1]
    1. Set for coating substrates (121, 221, 300) to produce exhaust gas purification catalysts, especially for motor vehicles, characterized by the fact that they are cylindrical bearing bodies always presenting two front faces (301), one side lateral (302) and an axial length L and from the first front face to the second front face are crossed by a variety of channels (110, 210, 310), with liquid coating product (113, 213), presenting a cylinder (102, 202) with a piston (101, 201), filled with liquid (103, 203), and the liquid-filled cylinder communicates with a container (112, 212) in whose interior a displacement body (111, 211) is positioned so that the displacement body (111, 211) in the movement of the piston (101, 201) will be proportionally moved by the liquid (103, 203) and the container (112, 212) communicates with the coating for the substrate, with the displacement body acts on the liquid coating product, so that a proportional change in the filling level (130, 230) of the liquid coating product in the coating device (122, 222) is produced.
    [2]
    2. Assembly according to claim 1, characterized by the fact that the piston (101, 201) is moved by an electric actuator (100, 200).
    [3]
    3. Assembly according to any one of the preceding claims, characterized by the fact that the coating device (122, 222) is equipped with sensors (123, 223) that react to the filling level of the product (130, 230) of liquid coating and which are connected with a control unit (125, 225) to control the movement of the piston (101, 201), processing the signal transmitted by the sensors for the purpose of controlling the movement of the piston so that a level is ensured filling (130, 230)
    Petition 870180058292, of 07/05/2018, p. 40/88
    2/4 reproducible on the coating device (122, 222), regardless of the existing quantity of the liquid product.
    [4]
    4. Assembly according to any one of the preceding claims, characterized by the fact that it has a sensor (124, 224) for controlling the position of the displacement body (111,211).
    [5]
    5. Process for coating substrates that are crossed from the first front face to the second front face by a large number of channels characterized by comprising the following steps:
    - providing the substrate (401);
    - providing an assembly (402) as defined in claims 1 to 4;
    - positioning the substrate in the coating device (403);
    - start the movement of the piston (101,201), so that the liquid displaced by the piston is moved proportionally with the displacement body (111, 211) with the amount of displaced liquid volume (404);
    - actuation of the displacement body on the coating product, and a volume of the coating product, proportional to the movement of the displacement body (111, 211), produces a displacement, with a corresponding increase in the filling level of the coating product within the coating device (405);
    - penetration of the coating product into the channels (110, 210, 310) of the substrate (121, 221, 300) up to the desired level of filling, that is, the coated length of the channels, in proportion to the displaced volume of the coating product (406);
    - removal of the coating product from the substrate channels, when the coating is formed within the channels (407).
    [6]
    6. Process for coating substrate, according to
    Petition 870180058292, of 07/05/2018, p. 41/88
    3/4 with claim 5 characterized by the fact of understanding the steps:
    - providing the substrate (501);
    - providing an assembly (502), as defined in claims 1 to 4;
    - positioning the substrate in the coating device (503);
    - start the movement of the piston, so that the liquid displaced by the piston is moved in a proportional direction with the displacement body in relation to the quantity of the displaced liquid volume (504);
    - actuation of the displacement body on the coating product, with a volume of the coating product, proportional to the movement of the displacement body, producing a displacement, with a corresponding increase in the level of filling of the coating product within the coating device (505);
    - fixing the reach of the first filling level of the coating product (506);
    - new or continued movement of the piston, so that the liquid displaced by the piston moves the displacement body in proportion to the amount of the displaced liquid volume (507);
    - actuation of the displacement body on the coating product, where a volume of the coating product, proportional to the movement of the displacement body, is displaced, resulting in a corresponding increase in the level of filling of the coating product within the coating device up to a second filling level of the coating product, with which the coating product penetrates the substrate channels to the desired filling level, that is, the length
    Petition 870180058292, of 07/05/2018, p. 42/88
    4/4 coated of the channels, in proportion to the displaced volume of the coating product (508);
    - removal of the coating product from the substrate channels, with the coating forming within the channels (509).
    Petition 870180058292, of 07/05/2018, p. 43/88
    1/5
    Petition 870180058292, of 07/05/2018, p. 45/88
    2/5 r— cxj
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    3/5 ο
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    Petition 870180058292, of 07/05/2018, p. 47/88
    4/5
    Xiq: 4 ·
    Petition 870180058292, of 07/05/2018, p. 48/88
    5/5
    Petition 870180058292, of 07/05/2018, p. 49/88
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    法律状态:
    2018-04-17| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2018-09-18| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2018-11-21| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/02/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-03-02| B21F| Lapse acc. art. 78, item iv - on non-payment of the annual fees in time|Free format text: REFERENTE A 10A ANUIDADE. |
    2021-06-22| B24J| Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)|Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2617 DE 02-03-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102010007499.3|2010-02-09|
    DE102010007499A|DE102010007499A1|2010-02-09|2010-02-09|Volumetric coating arrangement|
    PCT/EP2011/051826|WO2011098450A1|2010-02-09|2011-02-08|Coating method and device|
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