EP0443390A1 - Procédé pour la fabrication d'un fil texturé par jet d'air - Google Patents

Procédé pour la fabrication d'un fil texturé par jet d'air Download PDF

Info

Publication number
EP0443390A1
EP0443390A1 EP91101826A EP91101826A EP0443390A1 EP 0443390 A1 EP0443390 A1 EP 0443390A1 EP 91101826 A EP91101826 A EP 91101826A EP 91101826 A EP91101826 A EP 91101826A EP 0443390 A1 EP0443390 A1 EP 0443390A1
Authority
EP
European Patent Office
Prior art keywords
thread
air
texturing
nozzle
godet
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.)
Granted
Application number
EP91101826A
Other languages
German (de)
English (en)
Other versions
EP0443390B1 (fr
Inventor
Eberhard Krenzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6400233&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0443390(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19904004721 external-priority patent/DE4004721C2/de
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0443390A1 publication Critical patent/EP0443390A1/fr
Application granted granted Critical
Publication of EP0443390B1 publication Critical patent/EP0443390B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/168—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam including drawing or stretching on the same machine

Definitions

  • the invention relates to a method for producing an air-textured thread according to the preamble of claim 1 and an air texturing machine.
  • Process and machine are the subject of the European patent application EP 89122621.9.
  • a pre-oriented, thermoplastic thread is presented as the thread to be textured. This thread is drawn in a drawing zone and then blown into loops, loops, arches and the like in an air blowing nozzle.
  • the thread produced has residual shrinkage.
  • an air-textured thread is produced which is low in shrinkage, i.e. which has a low residual shrinkage.
  • This invention is based on the knowledge that the problem of residual shrinkage also exists in those air-textured threads which are presented to the air-texturing machine as fully stretched, fully oriented thermoplastic threads.
  • the object of the invention is therefore to produce an air-textured thread from a fully oriented, fully stretched thermoplastic thread - just as in the older invention - which is low-shrinkage, i.e. which has a low residual shrinkage.
  • the invention is based on the knowledge that the air texturing machine with a heating zone which is designed as a heating godet and which is immediately upstream of the texturing zone, not only when presenting pre-oriented threads which are still drawn on the air texturing machine, but also when presenting fully drawn Threads is a suitable means for eliminating the residual shrinkage, this means being superior to all other known means in terms of its effect, but also because of the low technical complexity and the good classification in the process sequence.
  • the tendency towards residual shrinkage can be reduced much more than in the previously discussed known methods.
  • the particular advantage is that the texturing is not impaired. It is particularly important that the heating of the thread is intense. Therefore, the thread can be heated to a temperature above the 2nd order transition point, so that the previously firmly anchored crystal structure softens and internal stresses are relieved. It is particularly advantageous to heat the godet to a temperature which is just below the melting temperature of the thread to be processed, i.e. for polyamide 6.6 and polyethylene terephthalate approx. 240 °, for polypropylene approx. 150 °. On the other hand, however, the thread in the air texturing nozzle is cooled down very much, so that the shrinkage comes to a standstill and the texturing takes place on the cold thread.
  • the solution is a happy integration of the relaxation process into the air texturing process.
  • the heating of the thread can take place at the exit of the drawing zone or in the entrance of the texturing zone.
  • the use of the heating godet allows intensive heating and very low thread tensions in the texturing zone and thus a good shrinking effect.
  • the residual shrinkage of the threads treated according to the invention is less than half. This is due to the fact that the method according to the invention does not have the limitations of the known methods mentioned. Because according to the invention the shrinkage to be set does not depend on the speed difference of the relaxation zone (feed speed minus take-off speed) and the thread tension does not increase due to the triggering of the shrinkage. Rather, the thread tension to be set and thus the shrinkage are based solely on the tensile force of the air texturing nozzle.
  • the method according to this invention is of particular superiority over all known methods in the texturing of multifilament threads with a high titer of more than 500 dtex, in particular more than 700 dtex , especially in the usual titer range of 130 dtex.
  • the method is particularly favored in that the low thread tensions of the texturing zone - as stated in claim 2 - are set differently in front of and behind the air texturing nozzle.
  • the thread at the outlet of the air texturing nozzle is deflected strongly, preferably at approximately 90 °. This measure is in contrast to the straight thread run, which is common with tangling (interlacing, entangling) and is also possible with air texturing nozzles.
  • the heat and shrinkage treatment according to the invention makes it possible to eliminate irregularities in the previous stretching by means of the intensive shrinkage treatment even before the actual texturing. Threads with high strength and the desired properties with regard to elongation and residual shrinkage can be produced.
  • the thread tension relevant for the shrinkage arises from the tensile force of the texturing nozzle.
  • the tensile force of the texturing nozzle depends on the thread speed.
  • the thread speed is determined by the peripheral speed of the godet, which is upstream of the texturing nozzle.
  • the difference in the peripheral speed of the godet and the delivery mechanism, which follows the texturing nozzle, is not decisive for the shrinkage. Because according to the invention this difference - as stated in claim 3 - is always greater than the amount of the desired shrinkage.
  • the amount of shrinkage required is determined solely by the tensile force of the nozzle and the temperature of the godet.
  • the overfeed of the thread in the texturing zone is always greater than the shrinkage set by the tensile force of the nozzle and the temperature of the godet.
  • the fact that the tradition is greater than the set shrinkage means that the thread can be crimped in the desired manner.
  • the difference between tradition and set shrinkage is 1 to 10% for technical threads, for which the texturing serves in particular the purpose of roughening the thread, e.g. to improve its runnability (sewing threads) or to improve its adhesion to other materials (technical fabrics, tire cord) .
  • An air texturing process in the sense of this application means a process in which an endless, synthetic thread, which consists of a large number of individual filaments, is subjected to the action of an air texturing nozzle. An unheated air jet is blown onto the thread in the air texturing nozzle. This creates the single filaments deformed into loops, loops, arches and the like, without the chemical-physical structure of the filaments being significantly changed thereby.
  • the filaments, which are initially essentially parallel, are therefore only geometrically displaced into an irregular shape. In particular, loops, loops, arches are created.
  • Residual shrinkage is the tendency of the thread to shrink, e.g. when heated. shrink by hot air or hot water.
  • Shrinkage is the shortening of the thread that actually occurs when heated, expressed by the formula (L1 - L2) x 100 / L1%, where L1 is the original length and L2 is the shortened length of the thread.
  • the shrinkage cannot be greater than the previous shrinkage.
  • a residual shrinkage may still remain.
  • the residual shrinkage ie the tendency to shrink
  • the residual shrinkage of the thread can only be reduced by a suitable aftertreatment following the method. It is indeed possible to reduce the residual shrinkage of the thread by such post-treatment measures for shrinking treatment.
  • these post-treatment measures have considerable disadvantages. This applies in particular to textured threads, since the post-treatment subsequently affects or even damages the crimp.
  • the shrinking treatment can only be carried out intensively if the thread is "contact heated", ie if the thread is placed over a hot plate or hot godet is performed. However, this is generally not advisable for textured threads because this results in an ironing effect. This means that the thread texture previously inserted is partially removed by contact with the hot surface, especially on one side of the thread.
  • the residual shrinkage could also be reduced before texturing.
  • thermoplastic drawing of thermoplastic threads can be followed by a treatment for reducing the shrinkage in a relaxation zone.
  • This relaxation zone adjoins the actual stretching zone.
  • the relaxation zone is formed between two godets or delivery units, the thread being heated in the relaxation zone. This would increase the length of the thread and thus the height of the air texturing machine.
  • this relaxation treatment always has the problem that the reduction in shrinkage in such a relaxation zone is limited bumps because the thread tension of a thread running between godets cannot be reduced arbitrarily and because of this the shrinkage depends on the limited speed difference of the godets.
  • a completely drawn and oriented thread is drawn off from the supply spool 1 via the head thread guide 2 by a heated godet 5. Behind the heated godet 5, the thread passes through the air texturing nozzle 7. Unheated compressed air is fed to the air texturing nozzle 7. The thread is never heated until it softens during the air texturing treatment. The deformations caused by the air jet treatment are therefore not imprinted on the chemical-physical thread structure. When it hits the thread, the air expands and cools down further. The expanding filament blows the individual filaments of the multifilament chemical thread into loops, loops, arches and the like. These are merely geometrical deformations, which intertwine and get caught together, resulting in the texture of the thread.
  • the air with which the texturing nozzle is fed is unheated and has a temperature which is below the temperature at which the crystal structure of the thread freezes and therefore any shrinkage comes to a standstill.
  • the air temperature is usually below 40 ° C. This air is further cooled by the expansion.
  • the air leaving the nozzle has a temperature of less than 10 °.
  • the texturing nozzle is operated with compressed air at a pressure between 6 and 10 bar. Therefore, the thread, which was previously heated by the godet 5, is also very strongly quenched in the texturing nozzle, so that its temperature also falls below the temperature at which the crystal structure freezes.
  • the air channels 8, which are directed towards the thread channel 9 in the texturing nozzle 7, have a directional component in the thread running direction.
  • the air texturing nozzle 7 also exerts a conveying action and a tensile force on the thread.
  • the thread leaves the air texturing nozzle 7 essentially without thread tension, the thread being deflected and guided to the delivery mechanism 10.
  • the deflection is 30 to 90 °, preferably 90 °.
  • the deflection is achieved in that the delivery mechanism 10 is not on the axis of the thread channel 9 of the texturing nozzle 7, but laterally offset.
  • the deflection does not take place in that the thread is pulled over a thread guide, but in that the thread is initially conveyed straight ahead by the air jets when it exits the thread channel 9 and then has to change its direction to the feed mechanism 10.
  • This type of deflection results in a substantial reduction in the thread tension. Therefore, the thread tension between the godet 5 and the texturing nozzle 7 is higher than the thread tension behind the texturing nozzle 7 and after the deflection in front of the delivery unit 10 builds up again.
  • the thread tensions in front of and behind the air texturing nozzle were, for example, 6 cN and 5 cN.
  • the thread can be warped in a stabilizing zone between two godets without elastic or plastic deformation without heating.
  • the thread can be passed through a fixing zone at temperatures up to 245 ° C.
  • the series connection of the stabilizing zone and the fixing zone creates a particularly compact thread with low instability.
  • the thread is then moved back and forth through the traversing device 11 transversely to its running direction and wound on the spool 12.
  • the spool 12 is driven by the drive roller 13 at a constant peripheral speed.
  • the godet 5 is heated.
  • the temperature of the godet 5 is between 200 ° and 245 ° C, and around 150 ° for polypropylene.
  • the test parameters and the test results are shown in the table below.
  • the threads initially had a diter of 410 dtex and a yield point of 180% before they were fully oriented by drawing with a drawing ratio of 1: 1.95 or for the technical thread of 1: 2.3 and wound up to the supply spool 1 were.
  • FIG. 1 A suitable device for rapid measurement of the residual shrinkage is shown schematically in FIG.
  • Such a device is commercially available under the trade name testrite. This device is used in particular for comparison tests. The device determines what percentage (L1 - L2 / L1 x 100) of a pretreated thread shrinks when it is exposed to shrinkage treatment on the testrite device with the same clamping length, the same heating length, the same heating temperature and heating time and the same thread tension becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP91101826A 1990-02-15 1991-02-09 Procédé pour la fabrication d'un fil texturé par jet d'air Expired - Lifetime EP0443390B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904004721 DE4004721C2 (de) 1988-12-13 1990-02-15 Verfahren zur Herstellung eines lufttexturierten Fadens
DE4004721 1990-02-15

Publications (2)

Publication Number Publication Date
EP0443390A1 true EP0443390A1 (fr) 1991-08-28
EP0443390B1 EP0443390B1 (fr) 1994-03-30

Family

ID=6400233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101826A Expired - Lifetime EP0443390B1 (fr) 1990-02-15 1991-02-09 Procédé pour la fabrication d'un fil texturé par jet d'air

Country Status (4)

Country Link
US (1) US5142754A (fr)
EP (1) EP0443390B1 (fr)
DE (1) DE59101250D1 (fr)
ES (1) ES2051037T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6397444B1 (en) * 1994-05-24 2002-06-04 University Of Manchester Institute Of Science & Technology Apparatus and method for texturing yarn
DE59804164D1 (de) * 1997-01-20 2002-06-27 Barmag Barmer Maschf Galette zum Fördern, Führen und Erhitzen eines laufenden synthetischen Fadens
IT1289927B1 (it) * 1997-02-19 1998-10-19 G I B A S P A Processo e apparato per la volumizzazione e simultanea interlacciatura di fili termoplastici con impiego di fluidi di riscaldamento
GB0008304D0 (en) 2000-04-06 2000-05-24 Univ Manchester Precision delivery system
US6807347B2 (en) * 2001-06-25 2004-10-19 Corning Cable Systems Llc High density fiber optic cable
US20060200956A1 (en) * 2003-04-15 2006-09-14 Alfio Vezil Method and device for the mechanical treatment of a yarn particularly a synthetic multi-strand yarn, and yarn produced in this way
DE502005004453D1 (de) * 2004-03-18 2008-07-31 Diolen Ind Fibers Bv Verfahren zum beschichten eines garnes
US20080044620A1 (en) * 2006-06-22 2008-02-21 Moshe Rock High pile fabrics
EP3467167A1 (fr) * 2017-10-06 2019-04-10 Polytex Sportbeläge Produktions-GmbH Gazon artificiel avec fils texturés et procédé de production

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459102A (en) 1947-01-25 1949-01-11 Newton J Adair Musical instrument
US3069836A (en) 1958-08-01 1962-12-25 Du Pont Yarn relaxation process using fluid jets
US3892020A (en) 1973-12-14 1975-07-01 Du Pont Preparing a textured yarn package, for dyeing
DE2749867A1 (de) 1977-11-08 1979-05-10 Barmag Barmer Maschf Verfahren zum herstellen eines gekraeuselten garns aus multifilen endlosfasern
USRE32047E (en) 1977-11-08 1985-12-17 Barmag Barmer Maschinenfabrik Aktiengessellschaft Process for the production of a crimped continuous multifilament yarn
EP0373519A2 (fr) 1988-12-13 1990-06-20 Barmag Ag Procédé de fabrication d'un fil texturé par jet d'air

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558760A (en) * 1965-06-18 1971-01-26 Du Pont Process for spinning two component polyamide filaments
US4043010A (en) * 1974-08-14 1977-08-23 E. I. Du Pont De Nemours And Company Process for producing textured polyester yarn
US4026099A (en) * 1975-09-25 1977-05-31 Eastman Kodak Company Differentially drafted lofted multi-component continuous filament yarn and process for making same
US4341063A (en) * 1980-08-26 1982-07-27 Milliken Research Corporation Air textured yarns
US4467594A (en) * 1981-03-05 1984-08-28 Milliken Research Corporation Spun-like textured yarn
DE3210784C2 (de) * 1981-04-01 1984-10-31 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren und Vorrichtung zur Herstellung eines Fasergarns

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459102A (en) 1947-01-25 1949-01-11 Newton J Adair Musical instrument
US3069836A (en) 1958-08-01 1962-12-25 Du Pont Yarn relaxation process using fluid jets
US3892020A (en) 1973-12-14 1975-07-01 Du Pont Preparing a textured yarn package, for dyeing
DE2749867A1 (de) 1977-11-08 1979-05-10 Barmag Barmer Maschf Verfahren zum herstellen eines gekraeuselten garns aus multifilen endlosfasern
USRE32047E (en) 1977-11-08 1985-12-17 Barmag Barmer Maschinenfabrik Aktiengessellschaft Process for the production of a crimped continuous multifilament yarn
EP0373519A2 (fr) 1988-12-13 1990-06-20 Barmag Ag Procédé de fabrication d'un fil texturé par jet d'air

Also Published As

Publication number Publication date
EP0443390B1 (fr) 1994-03-30
ES2051037T3 (es) 1994-06-01
DE59101250D1 (de) 1994-05-05
US5142754A (en) 1992-09-01

Similar Documents

Publication Publication Date Title
EP0373519B1 (fr) Procédé de fabrication d'un fil texturé par jet d'air
DE2528127C2 (de) Verfahren zum Schnellspinnen eines Polyamids
DE2749867C2 (de) Verfahren zum Herstellen eines gekräuselten Garns aus multifilen Endlosfasern
EP0443390B1 (fr) Procédé pour la fabrication d'un fil texturé par jet d'air
DE19956854A1 (de) Verfahren zum Falschdralltexturieren eines synthetischen Fadens zu einem Kräuselgarn
EP1543184B1 (fr) Procede de production de fibres de polypropylene a haute tenacite
DE2855763C2 (fr)
DE2025109A1 (de) Sohmelzspinnverfahren
DE2741193A1 (de) Verfahren und vorrichtung zur herstellung von thermoplastischen faeden
DE4004721C2 (de) Verfahren zur Herstellung eines lufttexturierten Fadens
DE4424547C2 (de) Verfahren zur Herstellung eines Nähfadens und Nähfaden
DE19956008A1 (de) Verfahren zum Falschdralltexturieren eines synthetischen Fadens zu einem Kräuselgarn
DE2115185A1 (de) Garnherstellung
EP1585851B1 (fr) Procede et dispositif pour la production de fils multifilaments
DE2756937A1 (de) Verfahren zur blasbehandlung multifiler garne an einer strickmaschine, vorrichtung zur durchfuehrung des verfahrens und behandeltes garn
DE10100762A1 (de) Verfahren zum Spinnen eines multifilen synthetischen Fadens
EP1584716A1 (fr) Procédé de traitement de fil et machine
AT207034B (de) Verfahren zur Herstellung von schrumpfarmen Polyäthylenterephthalatfäden
DE10236359A1 (de) Verfahren und Vorrichtung zum Spinnen und Texturieren von synthetischen Fäden
AT227125B (de) Verfahren zur Herstellung eines voluminösen Garnes
EP0345898B1 (fr) Procédé de fabrication d'un fil de nylon à haute tenacité, fil produit par ce procédé, et son utilisation
EP0848094A1 (fr) Méthode de fabrication d'un fil fantaisie ayant des zones épaisses et fines et/ou un fil ayant des effets colorés
DE19529315A1 (de) Verfahren und Vorrichtung zum Herstellen von Dick/Dünn- und/oder Farbeffekten in einem Filamentgarn
DE2039328A1 (de) Verfahren zur Herstellung von Kraeuselgarn mit latenten Bauscheigenschaften
DE1660322C3 (de) Verfahren zur kontinuierlichen Herstellung von mäßig elastischen, hochvoluminösen Kräuselfaden

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI

17P Request for examination filed

Effective date: 19910731

17Q First examination report despatched

Effective date: 19930826

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI

REF Corresponds to:

Ref document number: 59101250

Country of ref document: DE

Date of ref document: 19940505

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940429

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2051037

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: H. STAEHLE GMBH

Effective date: 19941224

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BARMAG GMBH ENGINEERING & MANUFACTURING

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: GIUDICI DAVIDE & FIGLI SNC DEI FLLI GUIDICI

Effective date: 19990922

Opponent name: H. STAEHLE GMBH

Effective date: 19941224

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: BARMAG AG TRANSFER- H. STAEHLE GMBH

Ref country code: CH

Ref legal event code: NV

Representative=s name: RIEDERER HASLER & PARTNER PATENTANWAELTE AG

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: H. STAEHLE GMBH * 19990922 GIUDICI DAVIDE & FIGLI

Effective date: 19941224

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

27O Opposition rejected

Effective date: 20010705

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030224

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030226

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030318

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20030324

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20030325

Year of fee payment: 13

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040229

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040901

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040209

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041029

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050209

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040210

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO