EP3645231A1 - Moule pour matiere plastique - Google Patents
Moule pour matiere plastiqueInfo
- Publication number
- EP3645231A1 EP3645231A1 EP18729992.0A EP18729992A EP3645231A1 EP 3645231 A1 EP3645231 A1 EP 3645231A1 EP 18729992 A EP18729992 A EP 18729992A EP 3645231 A1 EP3645231 A1 EP 3645231A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grooves
- molding
- plastic mold
- mold
- fluid circulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C2033/023—Thermal insulation of moulds or mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3828—Moulds made of at least two different materials having different thermal conductivities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2883/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as mould material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2905/00—Use of metals, their alloys or their compounds, as mould material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2907/00—Use of elements other than metals as mould material
- B29K2907/04—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/757—Moulds, cores, dies
Definitions
- the invention relates to the technical field of the manufacture of plastic parts, including automotive body parts. More specifically, the invention relates to molds for carrying out such manufacture, in particular by a process of compression molding or by injection molding.
- such a mold comprises two half-molds, a said punch (the fixed element), a said die (the movable element), the two elements forming, in the closed position of the mold, a molding chamber.
- each of the two elements is monobloc, made from a solid cast steel block.
- the punch and die will be called “fingerprint” indifferently in the following to simplify the description.
- molding techniques involve heating or cooling the cavities. This heating or cooling is carried out using a temperature control circuit in which a heating or cooling fluid, in particular oil or water, is circulated.
- a heating or cooling fluid in particular oil or water
- the mold is heated to provide calories to the material in the molding chamber.
- injection molding the mold is cooled to capture the calories of the material in the molding chamber.
- the temperature control circuit (s) are typically composed of channel segments obtained by drilling or drilling from the outer faces of the steel blocks.
- This drilling is relatively simple when the workpiece is flat. On the other hand, it becomes an important constraint in the case of complex parts. Indeed, when the piece has a so-called 3D shape, the rectilinear drilling can no longer follow correctly, which requires to make compromises. In some cases, it is even necessary to drill from the molding face. In order to maintain the molding function of this face, it requires an insert of a plug in the drilled hole whose end protruding from the molding face is leveled in order to obtain a continuous molding face.
- the first is to increase the number of control circuits by realizing very often several circuits crossing each other, which is unfortunately not enough effective. Moreover, if too many holes or holes are made, the strength of the steel block can decrease to cause the collapse of the block. Sealing management is also more complex. Finally, this solution is expensive to implement.
- the second is to install pavers joined to existing circuits to drill the latter closer to the molding surface of the footprints.
- each of the two half-molds is a sandwich structure, namely a so-called molding part having a molding face intended to come into contact with the plastic material in the molding chamber, a support part and a so-called part.
- insulating thermalally arranged between the first two parts, temperature control circuits (grooves) being made (machined or molded) between the molding portion and the insulating portion, as described in EP2404728 and EP1403029.
- a heating or cooling fluid circulates directly in the control circuits, which poses, inter alia, sealing problems.
- the insulating part (the insert) is concrete thus cast also with sealing problems; in EP1403029, the "insulating" part is indeed made of metal, which greatly reduces the thermal control efficiency because this part also leads heat towards the rear of the mold.
- the invention aims to improve the sealing of the temperature control circuits of the molds for manufacturing plastic parts while achieving optimal thermal regulation.
- the invention particularly relates to a plastic mold, comprising two half-molds each having a molding portion and a thermal insulating portion attached to the molding portion.
- the molding part is equipped with at least one temperature control circuit in which at least one fluid circulation tube is arranged.
- the space in which circulates the control fluid is delimited here by a tube, of closed cross section, arranged in the circuit, and not by the circuit itself, pierced directly into the body of the steel blocks or formed by a channel formed at the interface of the two elements (molding part and part in contact therewith) constituting the blocks as in the state of the art, the leakage of the fluid is greatly reduced and even eliminated, so the tightness of the circuit significantly improved.
- the fluid circulation tube is generally of regular section, there is substantially no pressure loss or fluid flow rate variation.
- the thickness of the molding portion is reduced so that it is easier to produce by machining optimal control circuits, matching the shape of the molding face;
- the molding is the only regulated (heated or cooled) temperature.
- the portion of thermal insulation, conforming to the molding part ensures a better heat exchange between the fluid in the tubes and the molding part, so that the mold reaches its production temperature much more quickly than a conventional mold. .
- the mold may further comprise one or more of the following features, taken alone or in combination:
- Said at least one temperature control circuit consists of grooves formed in the molding portion and opening on its face in contact with the thermal insulation portion. This advantageous configuration facilitates the arrangement of the tube in the circuit (grooves) and its change in case of failure.
- said at least one fluid circulation tube fits at least a portion of the walls of the grooves of the molding part.
- the efficiency of the thermal regulation of the molding parts is optimized thanks to good contact between the tubes (and the fluid circulating therein) and the walls of the grooves.
- the tubes embrace at least the bottom wall of the grooves, which is closest to the molding face intended to come into contact with the plastic material.
- the part of thermal insulation comprises protuberances extending from its face in contact with the molding part, these protuberances having a width less than or equal to a width of the grooves and crushing said at least one fluid circulation tube in the grooves.
- the width of the grooves is slightly narrower than the initial diameter of said at least one fluid circulation tube and the grooves have a depth greater than said diameter.
- the tube is jammed and thus held in position in the corresponding groove as it is installed, this particularly advantageous in the case of grooves having many curves.
- a groove depth greater than the diameter of the tube causes the tube to not be pinched on the edges but well supported in the groove by the protuberance which comes from the part of thermal insulation.
- the protuberances have a flat surface in contact with the said at least one fluid circulation tube. Such a protrusion is easy to achieve and the stress applied to the tube is relatively homogeneous.
- said at least one fluid circulation tube inflates when it is heated and pressurized after its installation in the grooves so that it matches walls of the grooves.
- inflating the tube makes it possible in particular to minimize the roundings of the tube so that the tube fits better the walls of the groove.
- it is possible to overcome the aforementioned protuberances with this swelling capacity of the tube because it can be expected that the tube marries the walls of the grooves only under the effect of pressure and heating after installation. Therefore, the surface of the thermal insulating portion in contact with the molding portion is easier to machine.
- said at least one fluid circulation tube is made of an elastic material whose hardness is preferably less than 30 Shore A, such as silicone charged with thermal conductive carbon.
- the elasticity of the material constituting the tube allows it to be deformed, under stress of the protuberances and / or under the effect of pressure and heating, during its installation in the thermal regulation circuit, in order to match as much as possible the walls of the circuit.
- the molding part is made of metal, in particular steel of hardness greater than 30HRC.
- metal in particular steel of hardness greater than 30HRC.
- noble steel is commonly used to make molds for plastics, including their molding parts intended to come into contact with the material in the molding chamber, in order to fulfill various functions required by the molding process.
- the thermal insulation portion has a compressive strength greater than 300N / mm 2 , a resistance to temperatures above 200 ° C and a thermal conductivity coefficient of less than 0.50W / mk, preferably less than 0.1 W / mK.
- the thermal insulation portion is particularly suitable for injection molding under pressure or compression.
- the part of thermal insulation is made of composite material, in particular reinforced with fibers.
- Such a material can contribute to the lightening of the mold, so it is easier to handle and transport.
- this is only a non-limiting example and that any material fulfilling the conditions described in the previous paragraph can be used.
- said at least one fluid circulation tube is a single-piece tube or consisting of several tubes connected to each other.
- a tube in one piece which can meander in the thermal control circuit, sealing problems arise even less thanks to the lack of connection interface between the different segments.
- the manufacture of the tube is easier and flexible.
- the connection interfaces between the segment tubes can be arranged outside the mold, which facilitates the sealing management and maintenance of the tubes.
- the molding part comprises a molding face, the distance between the bottom of the grooves and the molding face is substantially identical.
- the thermal regulation of the molding face by the fluid flowing in the tubes arranged in the grooves is more homogeneous so that the different points of the molding face almost simultaneously reach a stabilized temperature.
- the direction the flow of fluid in the at least one tube is either parallel or perpendicular to the profile of the molding face.
- the mold is an injection or compression mold.
- FIG. 1 is a sectional view of an injection mold according to one embodiment of the invention, the part to be injected being planar;
- FIG. 2 is a sectional view of an injection mold according to another embodiment of the invention, the part to be injected being in 3D;
- FIGS. 3 (A), 3 (B) and 3 (C) schematically illustrate the steps for producing a mold of the invention according to a first method
- FIGS. 4 (A), 4 (B) and 4 (C) schematically illustrate the steps for producing a mold of the invention according to a second method
- FIG. 5 is an exploded perspective view of a half of a mold according to one embodiment of the invention.
- FIG. 6 is an exploded perspective view of a half of a mold according to another embodiment of the invention.
- FIGS. 7 (A) and 7 (B) schematically illustrate, in sectional view, two embodiments in which the direction of fluid flow is parallel (FIG. 7 (A)) or perpendicular (FIG. 7 (B)) to the profile of the molding face. It should be noted that in the description and the drawings the same reference numeral designates identical or similar elements.
- the mold 100 for plastics material is an injection mold, but it can also be a compression mold or a mold for manufacturing plastic parts by another technology.
- the mold 100 comprises two half-molds 100A (see FIG. 5 or 6) each comprising a molding part 120 and a part of thermal insulator 110 fixed, preferably in a removable manner (by screwing, by riveting, etc.), at the molding part 120.
- the molding part 120 comprises a molding face 126 intended to come into contact with the plastics material in the molding chamber and a face 124 in contact with the thermal insulating part 110.
- the face 124 is machined as closely as possible. of the molding face 126 keeping the same gap. In other words, it has the same profile as the molding face 126, which allows the molding portion 120 to have a substantially uniform thickness everywhere. In this case, the length of the machining path can be minimized.
- the face 124 may also be flat, as in the case of the examples in particular in Figures 1 and 2.
- the molding part 120 is equipped with at least one temperature control circuit in which at least one fluid circulation tube 140 is arranged.
- the part to be manufactured 130 has a simple shape. This is a flat piece.
- the workpiece 130 is of complex shape. This is a so-called 3D piece with reliefs.
- the temperature regulation circuit may consist of grooves 122 made in the molding part 120 and opening on its face 124.
- the grooves 122 are of section transversely substantially U. Any other form easy to achieve and promoting the heat exchange between the tube 140 and the molding portion 120 is conceivable.
- the grooves 122 are sized to receive the tubes 140 and hold them in position after installation.
- the tubes 140 embrace at least a portion of the walls 1221, 1222 of the grooves 122 to ensure good contact between the tubes and the molding portion.
- the tubes 140 in the assembled position of the mold, are in contact with the entire bottom wall 1221 and a portion of the side wall 1222.
- the distance between the bottom of the grooves 122 and the molding face 126 is substantially identical.
- the thermal regulation of the molding face 126 by the fluid flowing in the tubes 140 arranged in the grooves 122 is more homogeneous so that the different points of the molding face almost simultaneously reach a stabilized temperature. According to an embodiment illustrated in FIG.
- the thermal insulating portion 110 comprises protuberances 112 extending from its face 114 in contact with the molding part 120.
- these protuberances have a width L2 less than or equal to the width L1 of the grooves 122 so that in the assembled position of the mold, they are inserted into the grooves 122 by crushing the tubes 140 which are previously installed therein.
- the protuberances 112 of the thermal insulating portion 110 apply a stress on the tubes 140 so that the latter deform and come into better contact with the walls of the grooves. There is thus obtained a better heat exchange between the fluid flowing in the tubes 140 and the molding portion 120.
- the diameter of the tubes 140 must be adapted to the dimensions of the grooves 122 and the inlet depth of the protuberances 112 in the grooves.
- the protuberances 112 have a length adapted (preferably substantially identical) to that of the grooves in which the protuberances 112 are introduced, in order to compress the tubes 140 along its entire length.
- the width L1 of the grooves 122 is slightly narrower than the initial diameter D of the tubes 140 and the grooves 122 have a depth P greater than said diameter D.
- the tubes 140 become jammed in the grooves 122 when they are installed and they are not pinched at the edges but well supported in the grooves by the protuberances 112.
- the initial diameter D of the tubes 140 may be less than or equal to the width L1 of the grooves 122.
- the protuberances 112 may have a cross section of any suitable shape, such as rectangular (see Figures 1, 2, 3 (B) and 3 (C)), square or trapezoidal.
- the protuberances 112 have a flat surface in contact with the tubes 140. Such a protrusion is easy to achieve and the stress applied to the tube is relatively homogeneous.
- the thermal insulating portion 110 is devoid of protrusions described above.
- the tubes 140 follow the walls of the grooves 122 by swelling (thus deforming) under the effect of heating and pressure.
- the tubes 140 are also in contact with the surface 114 of the thermal insulating portion 110.
- the fluid flow tube is a one-piece tube that winds in the path of the circuit.
- the sealing problems are even less due to the lack of connection interface between the different tube segments.
- the fluid circulation tube consists of several tubes (segments) connected to each other. In this case, the manufacture of the tube is easier and more flexible.
- the connection interfaces between the tubes (segments) can be arranged outside the mold, which facilitates the management of the sealing and maintenance of the tubes.
- the direction of fluid flow in the tubes may be parallel or perpendicular to the profile of the molding face, as illustrated respectively in Figure 7 (A) and Figure 7 (B).
- the molding portion 120 is made of metal, such as steel or a metal alloy.
- metal such as steel or a metal alloy.
- it is noble steel or high quality steel, that is to say a steel of high hardness (greater than 30HRC).
- the part of thermal insulation 110 must be particularly suitable for injection molding under pressure or compression.
- it is made of a material which has a compressive strength preferably greater than 300N / mm 2 , a resistance to temperatures preferably greater than 200 ° C and a coefficient of thermal conductivity of preferably less than 0 , 50W / mk, ideally less than 0.1W / mK (in this case it is a high-performance insulator).
- the part of thermal insulator 110 may be made of composite material, in particular reinforced with fibers.
- the tubes 140 are made of an elastic material, such as a silicone charged with a thermally conductive carbon, which allows the tubes to deform, under stress, protuberances and / or under the effect of pressure and heating, during its installation. in the thermal regulation circuit, in order to marry as much as possible the walls of the circuit.
- the hardness of this material is preferably less than 30 Shore A.
- FIGS. 3 (A) - 3 (C) describe the main steps of producing a mold having protuberances on the thermal insulating portion.
- the grooves 122 are machined from the surface 124 intended to contact the thermal insulating portion 110 and install the tubes 140 into the grooves 122.
- the man The trade could well design the path, the dimensions and shapes of the grooves according to the part to be made with the mold and the parameters of the tubes 140 to accommodate.
- the thermal insulating part 110 is brought in and places it directly above the molding part 120 so that the protuberances 112 are aligned with the grooves that will receive them.
- the thermal insulating portion 110 is assembled on the molding portion 120 by engaging the protuberances 112 in the grooves 122 and secures the two portions by means of the elements. fasteners, such as screws, rivets, etc.
- grooves 122 are machined from the surface 124 intended to come into contact with the thermal insulating part 110 and installs the tubes 140 in the grooves 122.
- the initial diameter D of the tubes 140 may be smaller, equal to or slightly greater (preferable) than the width L1 of the grooves 122.
- the thermal insulating part 110 is brought in and placed directly above the molding part 120. Then, in the next step shown in FIG.
- the thermal insulating part 110 is assembled on the part 120 and fixed the two parts by means of fasteners, such as screws, rivets, etc. Still at this stage, the tubes are pressurized and heat so that they inflate to the walls of the grooves 122 and preferably also to the surface 114 of the thermal insulating portion 110.
- the material of the tubes 140 is of such nature that it hardens under the effect of heat. This variant thus makes it possible, under the effect of thermoforming under pressure, to conform the fluid circulation tubes in situ.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1755860A FR3067964A1 (fr) | 2017-06-27 | 2017-06-27 | Moule pour matiere plastique |
| PCT/EP2018/065791 WO2019001977A1 (fr) | 2017-06-27 | 2018-06-14 | Moule pour matiere plastique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3645231A1 true EP3645231A1 (fr) | 2020-05-06 |
Family
ID=59859277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18729992.0A Withdrawn EP3645231A1 (fr) | 2017-06-27 | 2018-06-14 | Moule pour matiere plastique |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3645231A1 (fr) |
| FR (1) | FR3067964A1 (fr) |
| MA (1) | MA49497A (fr) |
| WO (1) | WO2019001977A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3174021A1 (fr) * | 2020-04-03 | 2021-10-07 | Nicolas JAMOND | Appareil de moulage et procede de gaufrage d'une matiere premiere |
| EP4420854A1 (fr) * | 2023-02-21 | 2024-08-28 | JSP International SARL | Moule, en particulier moule pour jet de vapeur, pour le traitement de perles de polymère expansibles ou expansées pour former un composant de mousse particulaire |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9904205D0 (en) * | 1999-02-25 | 1999-04-14 | British Ceramic Res Ltd | Moulds |
| JP2002172625A (ja) * | 2000-12-08 | 2002-06-18 | Aisin Seiki Co Ltd | 樹脂成形金型およびそれを用いて行う樹脂成形方法 |
| JP2002347104A (ja) | 2001-05-23 | 2002-12-04 | Minoru Kasei Kk | ブロー成形用金型装置 |
| DE20318330U1 (de) * | 2003-11-25 | 2005-04-14 | Brandenburger Isoliertechnik Gmbh & Co | Thermoisolierplatte |
| FR2882293A1 (fr) * | 2005-02-22 | 2006-08-25 | Solvay | Rouleau pour la mise en oeuvre de films en matiere plastique |
| EP2404728A1 (fr) | 2010-07-08 | 2012-01-11 | ARRK Tooling Sermo France | Moules d'injection ou de compression et comportant un circuit de regulation de temperature, insert amovible comportant un circuit de regulation et procede de fabrication de ces moules |
| DE102011119613B4 (de) * | 2011-11-29 | 2017-07-27 | Airbus Defence and Space GmbH | Formwerkzeug und Herstellvorrichtung zum Herstellen von Kunststoffbauteilen sowie Formwerkzeugherstellverfahren |
| JP6020822B2 (ja) * | 2013-04-17 | 2016-11-02 | パナソニックIpマネジメント株式会社 | 射出成形用金型と射出成形方法 |
-
2017
- 2017-06-27 FR FR1755860A patent/FR3067964A1/fr not_active Withdrawn
-
2018
- 2018-06-14 EP EP18729992.0A patent/EP3645231A1/fr not_active Withdrawn
- 2018-06-14 WO PCT/EP2018/065791 patent/WO2019001977A1/fr not_active Ceased
- 2018-06-14 MA MA049497A patent/MA49497A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MA49497A (fr) | 2020-05-06 |
| FR3067964A1 (fr) | 2018-12-28 |
| WO2019001977A1 (fr) | 2019-01-03 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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