WO2001034479A1 - Recipients reutilisables en polyester comportant une substance desoxygenante - Google Patents

Recipients reutilisables en polyester comportant une substance desoxygenante Download PDF

Info

Publication number
WO2001034479A1
WO2001034479A1 PCT/GB2000/004253 GB0004253W WO0134479A1 WO 2001034479 A1 WO2001034479 A1 WO 2001034479A1 GB 0004253 W GB0004253 W GB 0004253W WO 0134479 A1 WO0134479 A1 WO 0134479A1
Authority
WO
WIPO (PCT)
Prior art keywords
polyester
preform
layers
container
wall portion
Prior art date
Application number
PCT/GB2000/004253
Other languages
English (en)
Inventor
Francisco Serrano
Original Assignee
Crown Cork & Seal Technologies Corporation
Carnaudmetalbox Plc
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
Application filed by Crown Cork & Seal Technologies Corporation, Carnaudmetalbox Plc filed Critical Crown Cork & Seal Technologies Corporation
Priority to AU11620/01A priority Critical patent/AU1162001A/en
Priority to EP00973065A priority patent/EP1235716B1/fr
Priority to DE60030581T priority patent/DE60030581D1/de
Publication of WO2001034479A1 publication Critical patent/WO2001034479A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered

Definitions

  • This invention relates to polyester containers, and particularly multilayer containers such as bottles for oxygen sensitive products such as beers and fruit juices etc .
  • Oxygen scavenging materials are known, such as those described m WO89/01012, m which a transition metal promotes the oxidation of an oxidisable polymer.
  • O89/01012 gives as an example polyamide materials being oxidised by means of cobalt Siccatol (TM Akzo Chemie) .
  • Multilayer structures are envisaged as potential embodiments .
  • the total thickness of the PET layers is 0.27875mm and the oxygen scavenging (MXD6 + CO) layers is 0.015mm.
  • MXD6 + CO oxygen scavenging
  • a polyester bottle comprising a neck portion, a side-wall portion, a shoulder portion interconnecting the neck and side-wall portions, and a base portion, the bottle consisting of three or more polymeric layers, at least the inner and outermost layers being formed of polyester, and one or more intermediate layers comprising an oxygen scavenging material, the total thickness of the polyester layers m the side-wall portion being at least 0.4mm, and the total thickness of the one or more intermediate layers m the side-wall portion being at least 0.02mm, the thickness of the polyester and intermediate layers being so as to provide a multi-trip polyester bottle.
  • the total thickness of the one or more intermediate layers m the side-wall portion is at least 0.025mm, and the total thickness of the polyester layers m the side-wall portion is at least 0.5mm.
  • refillable multi-trip bottles are known per-se (as exemplified by EP0247566B)
  • none of the prior art on bottles with oxygen scavenging materials envisages anything other than single trip bottles. Applicants believe they are the first to appreciate that oxygen scavenging materials can be used to design a multi-trip bottle and to design the bottle accordingly.
  • the oxygen scavenging material conveniently comprises an oxidisable organic polymer and a transition metal m a positive oxidation state.
  • the oxidisable organic polymer is conveniently a polyamide, preferably a polymer containing units of the formula -NH-CH 2 -arylene- CH 2 -NH-CO-alkylene-CO- .
  • the polyester is preferably polyethylene terephthalate .
  • the bottle has three polymeric layers, an outermost layer of polyester, an innermost layer of polyester, and an intermediate layer comprising an oxidisable organic polymer and a transition metal m a positive oxidation state.
  • the total thickness of the one or more intermediate layers preferably comprises approximately 5% of the total thickness of the side-wall portion.
  • the invention further resides in a preform for a polyester container, the preform comprising a neck portion, a side-wall portion to be drawn, and a closed bottom portion, the preform including three or more polymeric layers, at least the inner and outermost layers being formed of polyester, and one or more intermediate layers comprising an oxygen scavenging polymer, the total thickness of the polyester layers in the side-wall portion being at least 5mm, and the total thickness of the one or more intermediate layers in the side-wall portion being at least 0.3mm, the preform being suitable for the manufacture of a multi-trip polyester container.
  • the total thickness of the one or more intermediate layers in the side-wall portion of the preform is preferably at least 0.35mm, and the total thickness of the polyester layers m the side-wall portion is at least 6mm, preferably at least 7mm.
  • the oxygen scavenging material conveniently comprises an oxidisable organic polymer and a transition metal m a positive oxidation state.
  • the oxidisable organic polymer is conveniently a polyamide preferably a polymer containing units of the formula -NH-CH 2 -arylene- CH 2 -NH-CO-alkylene-CO-
  • the polyester is preferably polyethylene terephthalate .
  • the preform preferably comprises three polymeric layers, an outermost layer of polyester, an innermost layer of polyester and an intermediate layer comprising an oxidisable organic polymer and a transition metal in a positive oxidation state.
  • the total thickness of the one or more intermediate layers of the preform preferably comprises approximately 5% of the total thickness of the side-wall portion .
  • the oxidisable organic polymer may be selected from a variety of polymers. Examples include ethylenically unsaturated hydrocarbons (for example as described in EP0507207A) , polyolefins such as polypropylene and low density, medium density and high density polyethylene (e.g EP0451762A) , ethylene vinyl copolymers such as EVOH (e.g US5281360), amines (e.g EP0542512), ascorbic acid (e.g WO91/17044), olefm- diene copolymers (e.g EP0713899A) , and aliphatic polyketones (e.g W09813266) .
  • polymers include ethylenically unsaturated hydrocarbons (for example as described in EP0507207A) , polyolefins such as polypropylene and low density, medium density and high density polyethylene (e.g EP0451762A) , ethylene vinyl copolymers such
  • the invention further resides in a method of providing a multi-trip polyester container comprising the steps of :
  • a multi- layer preform comprising three or more polymeric layers, including at least one layer comprising an oxygen scavenging material , ii ) stretch blow moulding the preform to form a blow moulded container body, whereby the container is capable of at least five re-use cycles, each including subjecting the container to a hot caustic wash at a temperature of at least 60°C (140°F) followed by product filling and capping, the container exhibiting substantially no crack failure following the five re-use cycles and dimensional stability to the extent that the maximum volume deviation over the five re-use cycles is a maximum of
  • the invention further resides in a method of providing a multi-trip polyester container comprising the steps of : l) providing a multi- layer preform comprising three or more polymeric layers, including at least one layer comprising an oxygen scavenging material, 11) stretch blow moulding the preform to form a blow moulded container body, m) filling the container body with product and capping the container, iv) reusing the container by subjecting it to a caustic hot wash at a temperature of at least 60°C (140°F) , followed by further filling and capping, and v) repeating step (iv) to provide at least a five use multi-trip bottle.
  • the invention further resides m a method of providing a multi-trip polyester container comprising the steps of : I) providing a multilayer preform comprising three or more polymeric layers, including at least one layer comprising an oxygen scavenging material , ii) stretch blow-mouldmg the preform to form a multilayer blow moulded container body, the oxidisable organic polymer, the transition metal and the respective amounts thereof being selected such that the layer will scavenge oxygen during a period of oxygen scavenging, the arrangement being such that the wall of the container body has a permeance to oxygen of not more than 0.5 cm 3 / (m 2 atm day), m) filling the container body with product and capping the container, IV) reusing the container by subjecting it to a caustic hot wash at a temperature of at least 60°C (140°) , followed by further filling and capping, and v) repeating step (iv) to provide at least a five use multi-trip container, the period of
  • This marker means may be a relatively simple mechanism such as a date or batch code added to the container, or alternatively a more sophisticated mechanism such as an indicator adapted to change its visible appearance following a predetermined a time period after manufacture, or once the bottle has been exposed to a predetermined quantity of oxygen. Conceivably the colour of a marker, or of a layer of the container, conceivably the oxygen scavenging layer, could change under one or both of these conditions.
  • a polyester bottle comprising a neck portion, a side-wall portion, a shoulder portion interconnecting the neck and side-wall portions, and a base portion, the bottle consisting of three or more polymeric layers, at least the inner and outermost layers being formed of polyester, and one or more intermediate layers comprising an oxygen scavenging material such that the layer will scavenge oxygen during a predetermined period of oxygen scavenging, the bottle including marker means adapted to indicate when the predetermined period of oxygen scavenging is close to expiry.
  • bottles can be accepted or rejected for reuse based on their estimated future oxygen barrier performance, regardless of the number of trips they have made or the age of the bottles. This allows the maximum acceptable usage of each bottle, whilst ensuring that certain minimum oxygen barrier capabilities are always met .
  • Fig .1 is a schematic sectional view of a polyester preform m accordance with the present invention.
  • Fig.2 is a schematic sectional view of a polyester bottle made from the preform of Fig .1 and in accordance with the present invention.
  • a polyester preform is shown generally at 1 and comprises a neck portion 2, a shoulder portion 3, a side-wall portion 4 and a base portion 5.
  • the preform is formed mostly of polyethylene terephthalate, but is manufactured on a co- injection moulding machine such that there is an intermediate layer 6 of barrier material within the preform.
  • the layer 6 does not extend substantially into the neck portion 2, and is discontinuous m the base portion 5.
  • the intermediate layer 6 divides the side-wall portion 4 into three layers, an outermost layer 7 of PET, the intermediate layer 6, and an innermost layer 8 again of PET.
  • the innermost layer 8 is "innermost” m the sense that it is towards the inner wall of the preform, as opposed to being towards the middle of the wall .
  • the outermost layer 7 of PET has a thickness of approx. 3.325mm, as does the innermost layer 8.
  • the intermediate layer 6 has a thickness of approx. 0.35mm, and is formed of MXD6 polyamide (as sold by Mitsubishi Gas Chemicals of Japan) to which has been added 200 ppm cobalt neodecanoate.
  • the total thickness of the side-wall portion 4 is approx. 7mm.
  • the preform 1 is then transferred to a stretch blow moulding machine and formed into the bottle of Fig.2.
  • the bottle is shown generally at 9 and comprises the neck portion 2 (which is substantially unchanged) , a shoulder portion 3 ' formed from the shoulder portion 3 of the preform, a side-wall portion 4 ' formed from the side-wall portion 4 of the preform, and a base portion 5 ' formed from the base portion 5 of the preform 1.
  • an outermost PET layer 7' has a thickness of 0.2375mm, as does an innermost layer 8 ' , with an intermediate layer 6 ' having a thickness of 0.025mm.
  • the total thickness of the side-wall portion 4' is 0.5mm.
  • the bottle 9 is capable of at least 5 trips, each trip consisting of filling and capping, sale of the filled bottle and return of the empty bottle, and a caustic hot wash conventional m the reuse of multi -trip bottles.
  • the intermediate layer 6' scavenges oxygen such that the bottle 9 has excellent oxygen barrier properties for a period m excess of 100 weeks.
  • a marker patch (not shown) is present, for example on the underside of the base 5', to indicate when the 100 week period has been exceeded. In this way bottles nearmg the end of their useful life may be removed from the refilling stream before the oxygen barrier performance is seriously affected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Laminated Bodies (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Packages (AREA)

Abstract

Bouteille réutilisable en polyester, qui comporte trois couches polymères ou plus, les couches interne et externe au moins étant constituées de polyester, et une ou plusieurs couches intermédiaires comportant une substance désoxygénante. L'épaisseur totale des couches de polyester dans la paroi latérale de la bouteille est de 0,4 mm au moins et l'épaisseur totale de la couche intermédiaire au moins est d'au moins 0,02 mm, ce qui permet d'obtenir une bouteille réutilisable en polyester. Une préforme pour une telle bouteille, comportant des couches de polyester d'au moins 5 mm et une ou plusieurs couches de substance désoxygénante d'au moins 0,3 mm, est également décrite. Ladite bouteille peut comporter des moyens indiquant qu'une période prédéterminée de désoxygénation est prête à s'achever.
PCT/GB2000/004253 1999-11-11 2000-11-06 Recipients reutilisables en polyester comportant une substance desoxygenante WO2001034479A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU11620/01A AU1162001A (en) 1999-11-11 2000-11-06 Multi-trip polyester containers with oxygen scavenging material
EP00973065A EP1235716B1 (fr) 1999-11-11 2000-11-06 Recipients reutilisables en polyester comportant une substance desoxygenante
DE60030581T DE60030581D1 (de) 1999-11-11 2000-11-06 Ein sauerstoffabsorbierendes material enthaltender und wiederverwendbarer behälter aus polyester

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9926601.7 1999-11-11
GBGB9926601.7A GB9926601D0 (en) 1999-11-11 1999-11-11 Polyester containers

Publications (1)

Publication Number Publication Date
WO2001034479A1 true WO2001034479A1 (fr) 2001-05-17

Family

ID=10864274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/004253 WO2001034479A1 (fr) 1999-11-11 2000-11-06 Recipients reutilisables en polyester comportant une substance desoxygenante

Country Status (6)

Country Link
EP (1) EP1235716B1 (fr)
AT (1) ATE338691T1 (fr)
AU (1) AU1162001A (fr)
DE (1) DE60030581D1 (fr)
GB (1) GB9926601D0 (fr)
WO (1) WO2001034479A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1498355A1 (fr) * 2002-01-29 2005-01-19 Yoshino Kogyosho Co., Ltd. Bouteilles a orientation bi-axiale moulees par soufflage, et preforme correspondante
EP1681239A1 (fr) * 2004-12-31 2006-07-19 Granarolo S.P.A. Préforme, procédé de fabrication d'une préforme et d'un récipient
WO2010096430A2 (fr) 2009-02-18 2010-08-26 Invista Technologies S.A. R.L. Composition de polyester et bouteille pour produits pasteurisés gazéifiés
JP2019064025A (ja) * 2017-09-28 2019-04-25 大日本印刷株式会社 多層プリフォームおよび多層容器

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001012A1 (fr) 1987-07-27 1989-02-09 Mb Group Plc Ameliorations relatives au conditionnement
EP0451762A2 (fr) 1990-04-10 1991-10-16 Toppan Printing Co., Ltd. Composition à base de polyoléfine ayant des propriétés de barrière à l'oxygène, feuilles et récipients fabriqués à partir de cette composition
WO1991017044A1 (fr) 1990-05-02 1991-11-14 Zapata Industries, Inc. Compositions polymeres renfermant des composes eliminant l'oxygene
EP0507207A2 (fr) 1991-04-02 1992-10-07 W.R. Grace & Co.-Conn. Compositions, articles et méthodes pour l'élimination d'oxygène
EP0247566B1 (fr) 1986-05-30 1993-03-24 Continental Pet Technologies, Inc. Bouteille réutilisable en polyester
EP0542512A1 (fr) 1991-11-15 1993-05-19 Mitsubishi Gas Chemical Company, Inc. Composition fixant l'oxygène
US5281360A (en) 1990-01-31 1994-01-25 American National Can Company Barrier composition and articles made therefrom
EP0713899A2 (fr) 1994-10-19 1996-05-29 W.R. Grace & Co.-Conn. Composition fixant l'oxygène
WO1998012127A1 (fr) * 1996-09-23 1998-03-26 Amoco Corporation Bouteille en plastique presentant une permeance a l'oxygene nulle, pour la biere et autres applications
WO1998013266A1 (fr) 1996-09-25 1998-04-02 Continental Pet Technologies, Inc. Article desoxygenant transparent comprenant un polyester biaxialement oriente
WO1999038914A2 (fr) * 1998-02-03 1999-08-05 Continental Pet Technologies, Inc. Polymeres desoxygenants ameliores et conditionnement fabrique a partir de ceux-ci

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247566B1 (fr) 1986-05-30 1993-03-24 Continental Pet Technologies, Inc. Bouteille réutilisable en polyester
WO1989001012A1 (fr) 1987-07-27 1989-02-09 Mb Group Plc Ameliorations relatives au conditionnement
US5281360A (en) 1990-01-31 1994-01-25 American National Can Company Barrier composition and articles made therefrom
EP0451762A2 (fr) 1990-04-10 1991-10-16 Toppan Printing Co., Ltd. Composition à base de polyoléfine ayant des propriétés de barrière à l'oxygène, feuilles et récipients fabriqués à partir de cette composition
WO1991017044A1 (fr) 1990-05-02 1991-11-14 Zapata Industries, Inc. Compositions polymeres renfermant des composes eliminant l'oxygene
EP0507207A2 (fr) 1991-04-02 1992-10-07 W.R. Grace & Co.-Conn. Compositions, articles et méthodes pour l'élimination d'oxygène
EP0542512A1 (fr) 1991-11-15 1993-05-19 Mitsubishi Gas Chemical Company, Inc. Composition fixant l'oxygène
EP0713899A2 (fr) 1994-10-19 1996-05-29 W.R. Grace & Co.-Conn. Composition fixant l'oxygène
WO1998012127A1 (fr) * 1996-09-23 1998-03-26 Amoco Corporation Bouteille en plastique presentant une permeance a l'oxygene nulle, pour la biere et autres applications
WO1998013266A1 (fr) 1996-09-25 1998-04-02 Continental Pet Technologies, Inc. Article desoxygenant transparent comprenant un polyester biaxialement oriente
WO1999038914A2 (fr) * 1998-02-03 1999-08-05 Continental Pet Technologies, Inc. Polymeres desoxygenants ameliores et conditionnement fabrique a partir de ceux-ci

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1498355A1 (fr) * 2002-01-29 2005-01-19 Yoshino Kogyosho Co., Ltd. Bouteilles a orientation bi-axiale moulees par soufflage, et preforme correspondante
EP1498355A4 (fr) * 2002-01-29 2006-05-10 Yoshino Kogyosho Co Ltd Bouteilles a orientation bi-axiale moulees par soufflage, et preforme correspondante
EP1829786A1 (fr) * 2002-01-29 2007-09-05 Yoshino Kogyosho Co., Ltd. Bouteilles à orientation bi-axiale moulées par soufflage, et préforme correspondante
AU2003208053B2 (en) * 2002-01-29 2010-04-08 Yoshino Kogyosho Co., Ltd. Biaxially oriented blow-molded bottles and preform thereof
US7976918B2 (en) 2002-01-29 2011-07-12 Yoshino Kogyosho Co., Ltd. Biaxially drawn, blow-molded bottle and its preform
AU2009200632B2 (en) * 2002-01-29 2012-05-17 Yoshino Kogyosho Co., Ltd Biaxially drawn, blow-molded bottle and its preform
US8800794B2 (en) 2002-01-29 2014-08-12 Yoshino Kogyosho Co., Ltd. Biaxially drawn, blow-molded bottle and its preform
EP1681239A1 (fr) * 2004-12-31 2006-07-19 Granarolo S.P.A. Préforme, procédé de fabrication d'une préforme et d'un récipient
WO2010096430A2 (fr) 2009-02-18 2010-08-26 Invista Technologies S.A. R.L. Composition de polyester et bouteille pour produits pasteurisés gazéifiés
EP2398712A2 (fr) * 2009-02-18 2011-12-28 INVISTA Technologies S.à.r.l. Composition de polyester et bouteille pour produits pasteurisés gazéifiés
EP2398712A4 (fr) * 2009-02-18 2015-04-15 Invista Technologies Srl Composition de polyester et bouteille pour produits pasteurisés gazéifiés
JP2019064025A (ja) * 2017-09-28 2019-04-25 大日本印刷株式会社 多層プリフォームおよび多層容器

Also Published As

Publication number Publication date
GB9926601D0 (en) 2000-01-12
AU1162001A (en) 2001-06-06
ATE338691T1 (de) 2006-09-15
EP1235716A1 (fr) 2002-09-04
DE60030581D1 (de) 2006-10-19
EP1235716B1 (fr) 2006-09-06

Similar Documents

Publication Publication Date Title
EP1651527B1 (fr) Composition servant a produire un article d'emballage ayant des proprietes desoxygenantes et un faible trouble
US6933055B2 (en) Multilayered package with barrier properties
US7658881B2 (en) Multilayered package with barrier properties
CN110770133B (zh) 排出容器
HU213531B (en) Method of forming multilayer product, especially container, bottle, and multilayer container, bottle, made from multilayer material and preform forming the container, the bottle
CZ298276B6 (cs) Termoplastová nádoba, termoplastová láhev a způsob výroby vícevrstvé láhve
MXPA03004051A (es) Paquete de capas multiples con propiedades de barrera.
EP0161625B1 (fr) Procédé pour fabriquer une paraison à plusieurs couches
US20050221036A1 (en) Polyester composition with enhanced gas barrier, articles made therewith, and methods
CN101283028A (zh) 增强阻气性能用的容器和组合物
JP2003512831A (ja) ポリエステルをベースとする包装内に含まれた飲料中のアセトアルデヒド及び酸素を減少させる方法。
EP1235716B1 (fr) Recipients reutilisables en polyester comportant une substance desoxygenante
WO1998013266A9 (fr) Article desoxygenant transparent comprenant un polyester biaxialement oriente
US20040142129A1 (en) Modified container
JP2004291538A (ja) 含水率の低い内容物を収納する多層プラスチック容器及び該多層プラスチック容器に内容物を収納してなる包装体
JP2003291938A (ja) 多層容器
CN111164017B (zh) 合成树脂制多重瓶
JPS6279258A (ja) ポリエステルボトル
EP2199227B1 (fr) Matériau polymérique pour fabriquer un article d'emballage disposant des propriétés à barrière d'oxygène et de faibles propriétés de transmission de lumière
JP2003291284A (ja) 多層構造体
US20080061474A1 (en) Thermally stabilized adhesion promoting material for use in multilayer articles
JP2021160808A (ja) 多層容器
EP1693312A1 (fr) Sac pour le stockage de préformes
WO2006112840A1 (fr) Composition en polyester a barriere au gaz amelioree, articles ainsi elabores, et procedes
KR19990054114A (ko) 음료용 폴리에스테계 병 및 그의 제조 방법

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2000973065

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2000973065

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 2000973065

Country of ref document: EP