EP0723858B1 - Verfahren zur Erstellung eines Kraft-Weg-Diagramms der Pressstempel einer Rundläufer-Tablettenpresse - Google Patents
Verfahren zur Erstellung eines Kraft-Weg-Diagramms der Pressstempel einer Rundläufer-Tablettenpresse Download PDFInfo
- Publication number
- EP0723858B1 EP0723858B1 EP96100687A EP96100687A EP0723858B1 EP 0723858 B1 EP0723858 B1 EP 0723858B1 EP 96100687 A EP96100687 A EP 96100687A EP 96100687 A EP96100687 A EP 96100687A EP 0723858 B1 EP0723858 B1 EP 0723858B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- displacement
- values
- press
- force
- punch
- 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.)
- Expired - Lifetime
Links
- 238000010586 diagram Methods 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 10
- 238000012937 correction Methods 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 27
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
Definitions
- the invention relates to a method for creating a force-displacement diagram of the ram of a rotary tablet press according to the preamble of the claim 1.
- the rotor of a rotary tablet press equipped with a number of upper and lower stamps, whereby during a rotor revolution each punch at certain Positions of the circumference (pressing stations) of a vertical Movement and the associated force subject to.
- an ejector station is considered here to draw.
- EP 0 431 269 has disclosed such a Tableting machine the maximum pressing forces at the Monitor ram. Monitoring the pressing forces done to identify bugs and bad tablets to be able to sort out in time. The monitoring takes place also to provide evidence of the quality of the manufactured To be able to create tablets continuously.
- the process is the one with the press rams Die plate in its position constantly via an angle pulse generator supervised.
- a computer coordinates the specified maximum impulses with the press force values.
- the Pressure rollers in the press stations are one example Load cell assigned.
- the centered position of a Die pair defined in the area of a pair of pressure rollers for example the zero point from which the pulses start of the angular pulse generator are counted, whereby accordingly the division of the die plate a certain number of Angular impulses the position of the next pair of dies centered to the pair of pressure rollers. In this way can be used for all pairs of press rams on a tablet press determine the maximum pressing force.
- the compression characteristic is desirable of molding compounds.
- the force-displacement diagram of outstanding Importance Physically speaking, the force-displacement diagram describes the quantitative energy curve during tableting.
- the compressibility is essentially determined by pressure holding time, Granulate state (moisture, particle size distribution), bulk volume, Lubricant, etc.
- To the tablet properties include tablet mass, disintegration time, drug release, Abrasion etc.
- the invention is therefore based on the object of a method specify at which with a minimal measurement effort the compression characteristic under production conditions a rotary press can be determined.
- the course of the Pressing force of at least one ram in angular steps measured and stored in the computer corresponds to 3,600 angular pulses.
- the theoretical Values for the path of the press ram saved They can be calculated using appropriate geometric relationships will be discussed in more detail below becomes. The decisive factor for this theoretical value the diameter of the pressure roller, the shape of the stamp head and the relative position of these parts to each other.
- one of the rotational angle positions is in the computer assigned correction table stored, which essential Influencing factors on the actual stamp path, such as the suspension of the tablet press and Hertzian Pressing taken into account. Both the suspension as well the Hertzian pressure are dependent on that of the Pressure roller on the press force applied. It force-dependent correction factors are thus determined, subtract from the theoretical values for the stamp path to determine the actual stamp path.
- the invention therefore take into account the correction values Dependence of Hertzian pressure on the angular position of the ram.
- the correction values for Hertzian To calculate the compression and the spring deflection of the machine.
- the determination of the correction values in the correction table empirically by a selected pair of dies without intermediate molding compound for different Infeed values are moved towards each other and the associated press values can be measured.
- the rotor 12 of the tablet press 10 in FIG. 1 is included a die plate 14 indicated and a number of dies of the rotor 12 with a pair of dies an upper ram 16 and a lower ram 18 in the area of an upper pressure roller 20 or a lower one Pressure roller 22.
- the rotor 12 is supported by a shaft 24 driven by an electric motor 26, a drive belt 28 and a transmission 30. Also sits on the shaft 24 an angle pulse generator 32.
- the holder of the pressure rollers 20, 22 interacts with a load cell 34 or 36, with which the force is measured between the pressure roller and stamp acts when the stamp 16, 18 between the Drive pressure rollers 20, 22 along.
- the preliminary or main pressing of a molding compound in the Die plate 14 for forming a tablet or the like As is well known here the preliminary or main pressing of a molding compound in the Die plate 14 for forming a tablet or the like.
- FIG. 2 is the force-displacement diagram of a pair of press rams, for example the ram 16 and 18, during the Movement between the pressure rollers 20 and 22 shown.
- arrow 38 is the rising and with arrow 40 the falling Known branch of the diagram.
- the press material and the springback behavior forms itself, as if through the surface indicated in the diagram.
- Fig. 3 it is indicated how the angle pulse generator 32 with the rotation of the rotor 12 generates an angular pulse chain, for example one pulse per 0.1 ° revolution. Moreover it generates an initial impulse through the central Position of a pair of dies with respect to a pair of pressure rollers is defined.
- the pulses arrive at a pulse evaluation device 42 and from there to an analog-to-digital converter 44.
- FIG. 3 is also shown how the force sensor 34 via a Measuring amplifier 46 also with the analog-digital converter 44 is connected. Its output goes to a machine computer 48.
- An operating computer is connected to the machine computer 48 50 connected, with the to be described later How the force-displacement diagram of Fig. 2 is created.
- Fig. 4 it can be seen that the stamp 16 covers a vertical path s during its horizontal movement relative to the stationary pressure roller 20.
- pressing force values are determined, which are assigned to individual angular steps by triggering the Ahalog digital converter 44 through angular steps of the angular pulse generator 32 and stored in the computer.
- the course of the force during the path s is indicated at 52 in FIG. 4.
- To create the force-displacement diagram it is also necessary to determine the actual path of both stamps belonging to a press station during their vertical movement.
- the actual path is made up of the geometric value Y and the values Y 2 and Y 3 used for the correction.
- the vertical movement of a Stamp pair are calculated.
- the angles of rotation are preferably selected in 0.1 ° steps according to the pulse interval of the angular encoder 32.
- this overall theoretical path must be corrected the total suspension of the tablet press and around Hertzian surface pressure between stamp head 54 of each stamp and pressure roller 20 and between the stamp head of stamp 18 and the pressure wave 22.
- r a represents the outer diameter of the stamp head and r s represents the inner diameter of the curved outer region of the stamp head (mirror surface).
- stamp head 54 of the stamp 16 touches the pressure roller 20 with a mirror surface, which means a line contact.
- the pressing force is shown as for the above range.
- the factor x can only be done experimentally because of the complex view for every type of machine and every possible tooling be determined.
- the actual total stamp path for area 1 is hence the geometric value given above minus the flattening in area 1 minus the spring deflection.
- a pair of measuring stamps is installed in the tablet press, that is moved directly onto one another without molding compound.
- this pair of measuring stamps by adjusting the web height (for example in 0.1 mm steps) different Force-angle curves are generated, as shown in FIG. 7.
- Fig. 7 means w the delivery of the pressure rollers. It understands that the maxima of the forces with increasing w are larger. Then the maxima are shown in a force-displacement correction diagram 8 entered. With the help of 8 can correct the theoretical calculated total can be taken. In the embodiment 3 this is done in the form of a Table of values. The theoretical are in the operating computer Press stamp paths stored, which result from the above Calculation result. In addition, are in the operating computer 50 the values for the correction table according to the diagram 8 stored so that at a predetermined Force a given correction value from the theoretical Stamp path is subtracted.
- the correction described so far is still not sufficient, because it is for Hertzian pressure only correct in the area of the maximum. Rather, the Correction value of a further optimization described above be subjected.
- the pressure roller 20 touches the stamp head 54 in a line, which corresponds to the mirror diameter of the stamp head. Before and after this line is getting shorter and shorter and then turns into a point touch.
- Corresponding is also the elastic penetration depth of the pressure roller in the stamp head different. Therefore, with help of the computer not only the force maxima, but also the respective force values for the 0.1 ° steps for the different Infeed values recorded as shown in Fig. 9 is shown.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Control Of Presses (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Presses And Accessory Devices Thereof (AREA)
Description
- Fig. 1
- zeigt schematisch eine Rundläuferpresse.
- Fig. 2
- zeigt ein Kraft-Weg-Diagramm für einen Stempel der Presse nach Fig. 1.
- Fig. 3
- zeigt ein Blockschaltbild zur Ermittlung des Kraft-Weg-Diagramms nach Fig. 2.
- Fig. 4
- zeigt verschiedene Horizontal- und Vertikalpositionen eines Preßstempels über einen bestimmten Drehwinkel des Rotors der Presse nach Fig. 1.
- Fig. 5
- zeigt die geometrischen Beziehungen zwischen einer Druckrolle und einem Preßstempel der Presse nach Fig. 1.
- Fig. 6
- zeigt schematisch die Draufsicht auf den Rotor der Presse nach Fig. 1 im Bereich einer Druckrolle.
- Fig. 7
- zeigt ein Kraft-Winkel-Diagramm für verschiedene Zustellwerte.
- Fig. 8
- zeigt ein aus dem Diagramm von Fig. 2 hergeleitetes Kraft-Korrektur-Weg-Diagramm.
- Fig. 9
- zeigt ein Kraft-Winkel-Diagramm ähnlich dem nach Fig. 7.
- Fig. 10
- zeigt ein aus dem Diagramm von Fig. 9 hergeleitetes Kraft-Korrektur-Weg-Diagramm.
- Stempel und Druckrollen sowie Druckrollenlagerung
- Gußgehäuse
- unterschiedliche Lagerspiele
- Maschinensäulen
Claims (4)
- Verfahren zur Erstellung eines Kraft-Weg-Diagramms der Preßstempelpaare einer Rundläufer-Tablettenpresse, bei dem die Stellung der Preßstempel in Umlaufrichtung, die mittels einer Druckrolle in einer Preßstation betätigt werden, mit einem Winkelencoder ermittelt und mit Hilfe eines Rechners umgerechnet und zur gemessenen Preßkraft am Stempel in Beziehung gesetzt wird, gekennzeichnet durch folgende Verfahrensschritte:Bei jedem Winkelschritt des Winkelencoders wird die Preßkraft an den Preßstempeln mindestens eines Preßstempelpaares gemessen, und die Preßkraftwerte werden im Rechner gespeichertZu jedem Winkelschritt des Winkelencoders werden aus der Geometrie von Druckrolle, Preßstempelkopf und der Relativlage von beiden zueinander die jeweiligen theoretischen vertikalen Werte des Weges des Preßstempelpaares errechnet und im Rechner gespeichertIm Rechner wird ferner eine Kraft-Weg-Korrekturtabelle gespeichert, welche den Einfluß der Hertz'schen Flächenpressung zwischen Preßstempelkopf und Druckrolle sowie des Auffederverhaltens der Rundläuferpresse auf den tatsächlichen vertikalen Weg des Preßstempelpaares in Abhängigkeit von der Kraft repräsentiert undDer Rechner reduziert den theoretischen vertikalen Wert des Stempelpaarweges bei den einzelnen Winkelschritten um den entsprechenden Korrekturwert aus der Korrekturtabelle.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Korrekturwerte auch die Abhängigkeit der Hertz'schen Pressung von der Winkelstellung des Preßstempels wiedergeben.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Korrekturwerte der Korrekturtabelle empirisch ermittelt werden, indem ein ausgewähltes Preßstempelpaar ohne dazwischenliegende Preßmasse für unterschiedliche Zustellwerte aufeinander gefahren wird.
- Mießgerät und Rechner zur Überprüfung der auf einer Rundläuferpresse hergestellten Tabletten, dadurch gekennzeichnet, daß zur Erstellung von Weg-Preßkraft-Zuordnungen für die Preßstempel, mindestens für ein Stempelpaar folgende Elemente vorhanden sind:a) ein Winkelencoder für die Ermittlung der laufenden Winkelstellung des Drehtisches und damit der Preßstempelpaare,b) eine Preßkraftmeßeinheit, mit der die Preßkraftwerte mindestens eines Stempelpaares ermittelt werden und pro Winkelschritt ein Preßkraftmeßwert in den Rechner übertragen wird,c) ein Algorithmus im Rechner, der aufgrund der geometrischen Verhältnisse in der Tablettenpresse erstellt ist und mit Hilfe dessen aus den Winkelstellungen des Drehtisches die theoretischen Werte des Weges des Preßstempelpaares in der Matrize berechenbar sind,d) eine in den Rechner gespeiste Korrekturfunktion zur Umrechnung der theoretischen Weg-Werte der Stempel in tatsächliche Weg-Werte unter Berücksichtigung der Hertz'schen Flächenpressung zwischen Preßstempelkopf und Druckrolle sowie des Auffederverhaltens der Rundläuferpresse.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19502596 | 1995-01-28 | ||
| DE19502596A DE19502596C2 (de) | 1995-01-28 | 1995-01-28 | Meßgerät und Rechner zur Überprüfung der auf einer Rundläuferpresse hergestellten Tabletten der laufenden Produktion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0723858A1 EP0723858A1 (de) | 1996-07-31 |
| EP0723858B1 true EP0723858B1 (de) | 1999-04-07 |
Family
ID=7752484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96100687A Expired - Lifetime EP0723858B1 (de) | 1995-01-28 | 1996-01-18 | Verfahren zur Erstellung eines Kraft-Weg-Diagramms der Pressstempel einer Rundläufer-Tablettenpresse |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5699273A (de) |
| EP (1) | EP0723858B1 (de) |
| JP (1) | JP3713639B2 (de) |
| DE (2) | DE19502596C2 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19646536C1 (de) * | 1996-10-30 | 1998-01-29 | Korsch Pressen Gmbh | Verfahren zur Herstellung von Kopfflächen von mit zylindrischen Druckrollen zusammenwirkenden Stempeln für Rundlaufpressen und nach diesem Verfahren hergestellte Stempel |
| US5996404A (en) * | 1998-08-24 | 1999-12-07 | Westvaco Corporation | On-line dense paste rheological testing apparatus and method |
| DE19911294C1 (de) * | 1999-03-13 | 2000-06-15 | Fette Wilhelm Gmbh | Einstellverfahren für eine Rundläufertablettenpresse mit einem Winkelimpulsgeber zur Ermittlung des Preßkraftverlaufs an den einzelnen Stempeln in mindestens einer Preßstation |
| DE19958999A1 (de) * | 1999-12-08 | 2001-04-26 | Henkel Kgaa | Verfahren und Vorrichtung zur Regelung von Tablettenpressen |
| DE10142772C2 (de) * | 2001-08-31 | 2003-09-25 | Fette Wilhelm Gmbh | Verfahren zur Herstellung von Pressteilen in einer Pulverpresse |
| US6865498B2 (en) * | 2001-11-30 | 2005-03-08 | Thermwood Corporation | System for calibrating the axes on a computer numeric controlled machining system and method thereof |
| DE10212959A1 (de) * | 2002-03-22 | 2003-10-16 | Wolfram Minke | Vorrichtung zur Herstellung von Preßlingen |
| ES2310429B1 (es) * | 2002-05-14 | 2009-11-11 | Fundacion Robotiker | Procedimiento de fabricacion de troqueles. |
| AU2002304578A1 (en) * | 2002-05-14 | 2003-11-11 | Fundacion Robotiker | Die production method |
| DE50300536D1 (de) * | 2003-02-10 | 2005-06-16 | Korsch Ag | Verfahren und Vorrichtung zur Steuerung einer Rundläufer-Tablettiermaschine |
| DE102005051567B4 (de) * | 2005-10-20 | 2010-01-07 | Korsch Ag | Rundläufer-Tablettiermaschine sowie Verfahren und Vorrichtung zur Wegmessung eines Stempels einer Rundläufer-Tablettiermaschine |
| DE102008015820B4 (de) | 2008-03-27 | 2013-02-28 | Fette Compacting Gmbh | Vorrichtung und Verfahren zur Messung der vertikalen Position von Ober- und Unterstempeln einer Rundläufer-Tablettenpresse |
| DE102008020748B4 (de) * | 2008-04-23 | 2010-12-30 | Fette Gmbh | Stempel für eine Rundläuferpresse |
| DE102009031367B3 (de) | 2009-07-02 | 2010-09-02 | Fette Gmbh | Pressstempel für eine Rundläuferpresse |
| DE102013202975B4 (de) * | 2013-02-22 | 2015-02-05 | Korsch Ag | Einzelsortiervorrichtung zur sortierung von tabletten, system mit einer solchen einzelsortiervorrichtung und mit einer tablettiervorrichtung und verfahren zur überprüfung einer einzelsortiervorrichtung |
| KR20220073779A (ko) | 2019-09-27 | 2022-06-03 | 코르쉬 아게 | 펀치에 부착된 측정 장치를 사용하여 바람직하게는 작동 중에 정제기를 모니터링하기 위한 장치 및 방법 |
| DE102022131493A1 (de) * | 2022-11-29 | 2024-05-29 | Fette Compacting Gmbh | Verfahren zum Bewerten des Zustands von Pressstempeln einer Rundläuferpresse sowie Rundläuferpresse |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US504311A (en) * | 1893-08-29 | Pegging-machine | ||
| US4177517A (en) * | 1976-07-07 | 1979-12-04 | Mette Klaus H | Monitoring device for power presses |
| JPS5829600A (ja) * | 1981-08-12 | 1983-02-21 | 株式会社 アマダ | マイクロコンピユ−タによるプレスの制御装置 |
| DE3520203A1 (de) * | 1985-06-05 | 1986-12-11 | Wilhelm Fette Gmbh, 2053 Schwarzenbek | Rundlaeufer-tablettiermaschine und verfahren zur steuerung ihrer druckrollen |
| DE3823417A1 (de) * | 1988-07-11 | 1990-01-18 | Fette Wilhelm Gmbh | Verfahren und einrichtung zum ueberwachen der presskraefte der stempel einer tablettenpresse |
| FR2638118A1 (fr) * | 1988-10-20 | 1990-04-27 | Adl Automation | Procede et appareil pour la compression et le controle de la compression de matieres pulverulentes et presse en faisant application |
| DE3919821C2 (de) * | 1989-06-15 | 1994-04-07 | Mannesmann Ag | Verfahren und Vorrichtung zum Herstellen von maßhaltigen Preßlingen |
| DE3930475A1 (de) * | 1989-09-12 | 1991-03-14 | Dorst Masch & Anlagen | Presse zur herstellung masshaltiger presslinge aus pulverfoermigem material |
| US5223192A (en) * | 1989-12-02 | 1993-06-29 | Firma Wilhelm Fette Gmbh | Method of and arrangement for monitoring pressing forces in a pelletizing machine |
| DE3939956A1 (de) * | 1989-12-02 | 1991-06-06 | Fette Wilhelm Gmbh | Verfahren und einrichtung zum ueberwachen der presskraefte einer tablettiermaschine |
| US5211964A (en) * | 1991-05-20 | 1993-05-18 | Westinghouse Electric Corp. | Press machine with means to adjust punching force |
| CH683243A5 (de) * | 1991-11-15 | 1994-02-15 | Laeis & Bucher Gmbh | Verfahren zur Steuerung und/oder Regelung des Pressvorganges einer Steinpresse. |
| JPH0780076B2 (ja) * | 1992-04-28 | 1995-08-30 | 株式会社菊水製作所 | 回転式錠剤機の取着ロードセル点検方法 |
| US5322655A (en) * | 1993-02-19 | 1994-06-21 | Thomas Engineering, Inc. | Method for monitoring and controlling the weights of each layer of a multilayer tablet |
-
1995
- 1995-01-28 DE DE19502596A patent/DE19502596C2/de not_active Expired - Lifetime
-
1996
- 1996-01-18 EP EP96100687A patent/EP0723858B1/de not_active Expired - Lifetime
- 1996-01-18 DE DE59601573T patent/DE59601573D1/de not_active Expired - Lifetime
- 1996-01-23 US US08/590,281 patent/US5699273A/en not_active Expired - Lifetime
- 1996-01-26 JP JP03299996A patent/JP3713639B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE19502596A1 (de) | 1996-08-14 |
| DE59601573D1 (de) | 1999-05-12 |
| EP0723858A1 (de) | 1996-07-31 |
| JP3713639B2 (ja) | 2005-11-09 |
| JPH08276127A (ja) | 1996-10-22 |
| DE19502596C2 (de) | 1997-08-28 |
| US5699273A (en) | 1997-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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