WO2004030893A1 - Plastizierschnecke für einen extruder oder eine strangpresse mit im übergang dünnerer stegbreite - Google Patents

Plastizierschnecke für einen extruder oder eine strangpresse mit im übergang dünnerer stegbreite Download PDF

Info

Publication number
WO2004030893A1
WO2004030893A1 PCT/DE2003/002860 DE0302860W WO2004030893A1 WO 2004030893 A1 WO2004030893 A1 WO 2004030893A1 DE 0302860 W DE0302860 W DE 0302860W WO 2004030893 A1 WO2004030893 A1 WO 2004030893A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
flight
web
extruder
plasticizing
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.)
Ceased
Application number
PCT/DE2003/002860
Other languages
German (de)
English (en)
French (fr)
Inventor
Friedrich Mueller
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Priority to BR0306471-9A priority Critical patent/BR0306471A/pt
Priority to JP2004540474A priority patent/JP2006500257A/ja
Priority to DE50302134T priority patent/DE50302134D1/de
Priority to AU2003269685A priority patent/AU2003269685A1/en
Priority to US10/528,912 priority patent/US7329037B2/en
Priority to EP03750290A priority patent/EP1542853B1/de
Priority to DE10393891T priority patent/DE10393891D2/de
Publication of WO2004030893A1 publication Critical patent/WO2004030893A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B29C48/645—Screws with two or more threads neighbouring threads and channels having identical configurations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/605—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread being discontinuous
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/54—Screws with additional forward-feeding elements
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/595—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread having non-uniform width

Definitions

  • Plasticizing screw for an extruder OR provides an extruder I M Ü BE R N G GA thinner web width
  • the invention relates to a plasticizing screw for an extruder or an extruder with a high polymer melt throughput according to the features of the preamble of patent claim 1.
  • the invention relates in particular to the metering zone of such a plasticizing screw.
  • a metering zone immediately follows the plasticizing zone.
  • This section of the screw also referred to as the pressure zone, mixes the melted granules and conveys the plasticized material under pressure in the direction of an extruder nozzle.
  • WO 00/34027 describes the principle of the passage deepening in connection with guide bars.
  • an auxiliary screw is provided in front of the end of the plastic screw to minimize edge thickness fluctuations in the case of band-shaped material.
  • US Pat. No. 5,599,098 describes an extruder screw with a melting section for plastic, which consists of screw flights that partially overlap. The material flow is divided into two partial melts at the beginning of the overlapping screw flights, the flow speed and thus the pressure of the material increasing due to the smaller overall cross section. The newly beginning worm gear continues, while the original worm gear ends after 1/2 - 1 turn in the direction of flow.
  • a disadvantage of this solution is that the available cross-section of the overlapping screw flights is reduced by at least one screw wall cross-section, particularly with high material throughput. This is associated with a sudden increase in pressure.
  • the object of the present invention is to design a plasticizing screw for a high material throughput for an extruder or an extrusion press in such a way that in the area of or the web change a volume change in the conveying cross section and thus a sudden pressure increase in the polymer melt does not occur.
  • Suitable measures should be taken to slowly build up the necessary pressure.
  • the object is achieved according to the invention in that the cross sections of the screw flights in the overlapping area are reduced in such a way that the common conveying cross section of the screw flights in the area of the overlapping screw flights corresponds to the delivery cross section of the screw flight immediately before the screw flights overlap.
  • the actual cross-sectional transition from the single-spiral to the double-spiral conveyor cross-section is designed in such a way that there is no change in cross-section in this transition area either.
  • the at least one web change in this zone is designed according to the invention and the shaft diameter of the screw in this zone gradually increases to increase the pressure. This avoids a sudden build-up of pressure in the polymer melt at the start of the web change and both a uniform flow of the polymer melt is achieved and the desired mixing of the melt is carried out by the web change.
  • Web changes according to the invention arranged further downstream in the flow direction can serve for further intensive mixing of the polymer melt.
  • the screw shaft tapers in a region between two bar changes, axially parallel over 360 °.
  • FIG. 1 shows a plasticizing screw according to the invention with several overlaps of a first and second screw web and the associated processing
  • FIG. 2 shows a processing according to FIG. 1,
  • Figure 3 shows the cross section of a screw flight of an inventive
  • Figure 4 shows the beginning of an overlap zone.
  • Figure 1 shows the plasticizing screw 1 according to the invention for plasticizing a plasticizable polymer material with several overlaps of a first and second screw flight 4, 5 in the material flow direction 3 from right to left, with at least one web change in the pressure zone DZ and further web changes before and after one Pressure reduction zone DMZ can be provided.
  • a polymer is fed to the plasticizing screw on the right side in a filling zone FZ of the plasticizing screw 1 and largely plasticized in the subsequent melting zone SZ.
  • the thread depth T of the screw thread 2 is reduced by a gradual increase in the screw shaft diameter and thus the pressure of the melt is increased.
  • the melt is mixed in order to melt any still unmelted polymer components without a sudden pressure increase occurring at the beginning of this web change or in its further course.
  • Further web changes according to the invention are arranged in a mixing zone MZ in order to achieve an even more intensive mixing of the melt.
  • a pressure reduction zone DMZ which may be provided, the depth of the pitch is, for. B. reduced axially parallel and thus a pressure relief is achieved before the melt is supplied via a metering zone ZM the nozzle.
  • FIG. 2 shows the associated processing 6.
  • the ratio of the aisle widths b1, b2 in the overlapping area 7 is approximately 1: 2.
  • FIG. 3 shows the cross section of a web 4 of a plasticizing screw 1 according to the invention.
  • Figure 4 shows a detail X the beginning of a web overlap with a change in cross section of the webs 4.5 in the plan view, outside of the overlap is the land width d and be within the overlap of the web widths 1/2 d.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Screw Conveyors (AREA)
PCT/DE2003/002860 2002-09-27 2003-08-28 Plastizierschnecke für einen extruder oder eine strangpresse mit im übergang dünnerer stegbreite Ceased WO2004030893A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BR0306471-9A BR0306471A (pt) 2002-09-27 2003-08-28 Parafuso de extrusora ou prensa de extrusão com largura de volta menor na passagem
JP2004540474A JP2006500257A (ja) 2002-09-27 2003-08-28 移行領域のフライト幅が狭い押出機またはプレス機の可塑化スクリュー
DE50302134T DE50302134D1 (de) 2002-09-27 2003-08-28 Plastizierschnecke für einen extruder oder eine strangpresse mit im übergang dünnerer stegbreite
AU2003269685A AU2003269685A1 (en) 2002-09-27 2003-08-28 Plastifying screw for an extruder or a forcing machine, having a narrower thread width in the transition region
US10/528,912 US7329037B2 (en) 2002-09-27 2003-08-28 Plasticating screw for an extruder or extrusion press, having a narrower land width in the transition region
EP03750290A EP1542853B1 (de) 2002-09-27 2003-08-28 Plastizierschnecke für einen extruder oder eine strangpresse mit im übergang dünnerer stegbreite
DE10393891T DE10393891D2 (de) 2002-09-27 2003-08-28 Plastizierschnecke für einen Extruder oder eine Strangpresse mit im Übergang dünnerer Stegbreite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10245278.4 2002-09-27
DE10245278A DE10245278B4 (de) 2002-09-27 2002-09-27 Plastizierschnecke für einen Extruder

Publications (1)

Publication Number Publication Date
WO2004030893A1 true WO2004030893A1 (de) 2004-04-15

Family

ID=32009950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/002860 Ceased WO2004030893A1 (de) 2002-09-27 2003-08-28 Plastizierschnecke für einen extruder oder eine strangpresse mit im übergang dünnerer stegbreite

Country Status (10)

Country Link
US (1) US7329037B2 (enExample)
EP (1) EP1542853B1 (enExample)
JP (1) JP2006500257A (enExample)
KR (1) KR100629569B1 (enExample)
CN (1) CN100374280C (enExample)
AT (1) ATE314914T1 (enExample)
AU (1) AU2003269685A1 (enExample)
BR (1) BR0306471A (enExample)
DE (3) DE10245278B4 (enExample)
WO (1) WO2004030893A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8889052B2 (en) 2012-01-13 2014-11-18 Gentex Optics, Inc. Uncoated, corrosion resistant resin delivery system
US20150273753A1 (en) * 2014-03-27 2015-10-01 Barr, Inc Reduced wear extruder screw
WO2017096107A1 (en) * 2015-12-04 2017-06-08 University Of Massachusetts Extrusion apparatus and methods
TWI830232B (zh) * 2022-05-20 2024-01-21 國立高雄科技大學 雙螺桿裁切碳纖維回收料方法與裝置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273201A (en) * 1965-03-18 1966-09-20 Reifenhauser K G Fa Feed screw for extrusion press
US3946998A (en) * 1970-06-30 1976-03-30 Uniroyal Aktiengesellschaft Single worm extruder

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271819A (en) * 1962-02-26 1966-09-13 Nrm Corp Extruder
DE1302096B (de) * 1965-03-18 1969-12-18 Reifenhaeuser Kg Schneckenpresse
US3650652A (en) * 1970-05-05 1972-03-21 Feed Screws Inc Apparatus for extruding plastic material
US3867079A (en) * 1972-08-10 1975-02-18 Goodrich Co B F Apparatus for extruding polymeric material
US4000884A (en) * 1975-07-25 1977-01-04 Chung Chan I Extruder screw
US4201481A (en) * 1977-12-08 1980-05-06 Iddon Brothers Limited Scrolls for extruding machines
US4341474A (en) * 1980-08-27 1982-07-27 Wheeler Jr Norton C Extruder screw
US4733970A (en) * 1985-09-09 1988-03-29 Sterling Extruder Corporation Extruder screw
US4729662A (en) * 1986-04-02 1988-03-08 Hoechst Celanese Corporation Method for extruding liquid crystalline polymers
US4798472A (en) * 1988-01-14 1989-01-17 Harry Chan Extruder screw with balanced flights of different functional sections
JP3170757B2 (ja) * 1990-08-31 2001-05-28 東芝機械株式会社 バリヤスクリュ
JPH06164513A (ja) * 1992-11-17 1994-06-10 Sumitomo Electric Ind Ltd 光伝送路及び光通信装置
CN2193248Y (zh) * 1994-04-22 1995-03-29 延俊生 挤压机或挤出机用的复合型螺杆
JP3499059B2 (ja) * 1995-08-25 2004-02-23 株式会社ブリヂストン 押出し機用スクリュー
US5599097A (en) * 1995-12-14 1997-02-04 The Black Clawson Company Extruder screw for plastic extruders
US5599098A (en) * 1995-12-14 1997-02-04 The Black Clawson Company Extruder screw with multiple flighting
US6132076A (en) * 1998-12-09 2000-10-17 General Electric Company Single extruder screw for efficient blending of miscible and immiscible polymeric materials
CN2380373Y (zh) * 1999-06-17 2000-05-31 南京橡塑机械厂 平行双螺杆挤出机用变头变径变深组合螺杆
WO2003040271A1 (en) 2001-11-05 2003-05-15 International Fuel Technology, Inc. Fuel composition containing heavy fraction
US7156550B2 (en) * 2004-07-22 2007-01-02 Xaloy, Inc. Apparatus for plasticating thermoplastic resin including polypropylene

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273201A (en) * 1965-03-18 1966-09-20 Reifenhauser K G Fa Feed screw for extrusion press
US3946998A (en) * 1970-06-30 1976-03-30 Uniroyal Aktiengesellschaft Single worm extruder

Also Published As

Publication number Publication date
ATE314914T1 (de) 2006-02-15
EP1542853B1 (de) 2006-01-04
DE10393891D2 (de) 2005-08-25
DE10245278B4 (de) 2005-08-25
JP2006500257A (ja) 2006-01-05
KR100629569B1 (ko) 2006-09-27
EP1542853A1 (de) 2005-06-22
US20060023565A1 (en) 2006-02-02
US7329037B2 (en) 2008-02-12
KR20050087782A (ko) 2005-08-31
BR0306471A (pt) 2004-10-13
DE50302134D1 (de) 2006-03-30
DE10245278A1 (de) 2004-04-15
CN100374280C (zh) 2008-03-12
CN1684813A (zh) 2005-10-19
AU2003269685A1 (en) 2004-04-23

Similar Documents

Publication Publication Date Title
EP0087699B1 (de) Mehrwellige, kontinuierlich arbeitende Misch- und Knetmaschine für plastifizierbare Massen mit ineinandergreifenden, gleichsinnig drehenden Schnecken konstanten Achsabstandes
DE2610179C2 (de) Vorrichtung zum Extrudieren von expandierbarem, zellenbildendem thermoplastischem Material
DE112016001990B4 (de) Extruderschnecke, Extruder und Extrusionsverfahren
EP2212090B1 (de) Extruderschnecke für einen schneckenextruder
DE2417865C2 (de) Vorrichtung zum Extrudieren von Kunststoff
DE19928870C2 (de) Einschnecken-Extruder
DE2017580A1 (de) Schneckenstrangpresse mit einer eingängigen, eine erhöhte Scherung bewirkenden Schnecke
DE102007000510A1 (de) Einschneckenextruder mit über seine Länge verändertem Schneckenkanalquerschnitt
DE4114541C2 (de) Entgasungsextruder
DE1729145C3 (de) Schneckenstrangpresse für Kunststoff
DE102012008169A1 (de) Extruder mit Materialeintrag durch Gehäuse
DE4021751A1 (de) Entgasungsextruder
DE102019129717A1 (de) Einschneckenextruder
EP1542853B1 (de) Plastizierschnecke für einen extruder oder eine strangpresse mit im übergang dünnerer stegbreite
EP1993807B1 (de) Extruderschnecke
EP0071159A1 (de) Trichterstück einer Einschneckenstrangpresse
EP0564820A1 (de) Stiftzylinderextruder
DE19548524C2 (de) Schnecke zur Verarbeitung von Kunststoffen
DE10253225B4 (de) Schnecke für Ein-Schnecken-Extruder
EP0490360A1 (de) Verfahren und Extruder zur Verarbeitung und Herstellung von Kautschuk und thermoplastischen Kunststoffen
DE3404461C2 (de) Vorrichtung zum Schmelzen und Fördern von plastifiziertem Material mit einer Extrudierschnecke
DE1729394B2 (de) Schneckenpresse fuer die verarbeitung thermoplastischer stoffe
EP1308262A1 (de) Extrusionsschnecke
DE2908497C2 (de) Extruderschnecke
DD269127A1 (de) Schnecke fuer einschneckenpresse zur verarbeitung von polymerwerkstoffen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC 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 NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM 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 ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003750290

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020057004887

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2006023565

Country of ref document: US

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 10528912

Country of ref document: US

Ref document number: 467/CHENP/2005

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 20038229153

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2004540474

Country of ref document: JP

WWP Wipo information: published in national office

Ref document number: 2003750290

Country of ref document: EP

REF Corresponds to

Ref document number: 10393891

Country of ref document: DE

Date of ref document: 20050825

Kind code of ref document: P

WWE Wipo information: entry into national phase

Ref document number: 10393891

Country of ref document: DE

WWP Wipo information: published in national office

Ref document number: 1020057004887

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: 2003750290

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 10528912

Country of ref document: US