[go: up one dir, main page]

WO2002004127A3 - Unipolarity powder coating systems including improved tribocharging and corona guns - Google Patents

Unipolarity powder coating systems including improved tribocharging and corona guns Download PDF

Info

Publication number
WO2002004127A3
WO2002004127A3 PCT/US2001/021572 US0121572W WO0204127A3 WO 2002004127 A3 WO2002004127 A3 WO 2002004127A3 US 0121572 W US0121572 W US 0121572W WO 0204127 A3 WO0204127 A3 WO 0204127A3
Authority
WO
WIPO (PCT)
Prior art keywords
powder
tribocharging
powder coating
corona
guns
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/US2001/021572
Other languages
French (fr)
Other versions
WO2002004127A2 (en
Inventor
Michael Ross Sanner
William R Rehman
Harry J Lader
James W Messerly
Gerald W Crum
Alan John Knobbe
Sergey Guskov
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.)
Nordson Corp
Original Assignee
Nordson Corp
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 Nordson Corp filed Critical Nordson Corp
Priority to DE60106617T priority Critical patent/DE60106617T2/en
Priority to JP2002508575A priority patent/JP2004502532A/en
Priority to EP01954626A priority patent/EP1303356B1/en
Priority to CA002413267A priority patent/CA2413267A1/en
Priority to AU2001276859A priority patent/AU2001276859A1/en
Priority to KR10-2003-7000407A priority patent/KR20030022858A/en
Publication of WO2002004127A2 publication Critical patent/WO2002004127A2/en
Publication of WO2002004127A3 publication Critical patent/WO2002004127A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0418—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces designed for spraying particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/047—Discharge apparatus, e.g. electrostatic spray guns using tribo-charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
    • B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/053—Arrangements for supplying power, e.g. charging power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0426—Means for supplying shaping gas

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

A plurality of unconventional negative tribo-charging materials are described for use as the powder contact surfaces in tribocharging and corona powder spray guns, gun components, and powder delivery system components. The invention also provides a short barrel tribo-charging powder spray gun (200) having an interchangeable powder contact insert (220) and nozzle (230), with turbulence inducing air jets (240). The invention further provides novel tribocharging and corona gun designs. Improved powder coating systems are made possible wherein, for example, negative tribo guns can be utilized with negative corona guns to coat different parts of the same workpiece in a powder coating system. Also provided is an inside-out configuration in which pressurized air directs powder coating material outward towards a charging surface. Additional configurations provide air jet induced tribocharging and conventional tribocharging portions combined in a single gun.
PCT/US2001/021572 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns Ceased WO2002004127A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE60106617T DE60106617T2 (en) 2000-07-11 2001-07-09 UNIPOLAR POWDER COATING SYSTEMS WITH IMPROVED FRICTION CHARGING AND CORONAPISTOLS
JP2002508575A JP2004502532A (en) 2000-07-11 2001-07-09 A monopolar powder coating mechanism including an improved triboelectric corona gun
EP01954626A EP1303356B1 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns
CA002413267A CA2413267A1 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns
AU2001276859A AU2001276859A1 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns
KR10-2003-7000407A KR20030022858A (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US21726100P 2000-07-11 2000-07-11
US60/217,261 2000-07-11
US72436300A 2000-11-28 2000-11-28
US09/724,363 2000-11-28

Publications (2)

Publication Number Publication Date
WO2002004127A2 WO2002004127A2 (en) 2002-01-17
WO2002004127A3 true WO2002004127A3 (en) 2002-06-13

Family

ID=26911775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/021572 Ceased WO2002004127A2 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns

Country Status (8)

Country Link
EP (1) EP1303356B1 (en)
JP (1) JP2004502532A (en)
KR (1) KR20030022858A (en)
CN (1) CN1635932A (en)
AU (1) AU2001276859A1 (en)
CA (1) CA2413267A1 (en)
DE (1) DE60106617T2 (en)
WO (1) WO2002004127A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006019643B4 (en) * 2006-04-25 2008-09-25 Reinhold Gregarek Device for pneumatic, tribostatic powder coating of workpieces
CN102858469A (en) 2010-04-29 2013-01-02 阿克佐诺贝尔国际涂料股份有限公司 Methods of Applying Powder Coatings
CN102553744A (en) * 2011-12-08 2012-07-11 吴江云峰金属购件涂装有限公司 Spray gun with spot spraying function
CH708403B1 (en) 2012-04-13 2016-03-15 Nordson Corp Powder gun that is configurable for supplying a venturi or dense phase pump.
EP2872257B1 (en) 2012-07-16 2020-09-23 Nordson Corporation Powder gun configurable for supply from venturi or dense phase pump
DE102013205362A1 (en) * 2013-03-26 2014-10-02 Gema Switzerland Gmbh Spray coating gun for spray coating objects with coating powder
DE102013219813B4 (en) * 2013-09-30 2020-07-09 Gema Switzerland Gmbh Nozzle for atomizing coating materials
JP5959488B2 (en) * 2013-10-09 2016-08-02 旭サナック株式会社 Powder coating method
CN104941833B (en) * 2015-06-16 2017-04-05 浙江大学 A kind of plasma nozzle, spray gun and spraying method
CN105170358A (en) * 2015-08-12 2015-12-23 浙江绿能塑粉有限公司 Thermoset plastic powder friction gun with excellent performance
CN106626767B (en) * 2016-12-09 2018-02-27 华中科技大学 A kind of air-flow auxiliary EFI print shower nozzle for being integrated with grounding electrode
CN116477706A (en) * 2023-05-22 2023-07-25 朱海全 Method for controlling diffusion of oil pollution and harmless treatment of residual oil

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225090A (en) * 1979-09-07 1980-09-30 Toyota Jidosha Kogyo Kabushiki Kaisha Device for painting by electrostatic powder spraying
US4798340A (en) * 1986-01-14 1989-01-17 Esb Elektrostatische Spruh- Und Beschichtungsanlagen G.F. Vohringer Gmbh Electrostatic device for powder spraying with triboelectric powder charging
EP0592137A1 (en) * 1992-10-05 1994-04-13 Nordson Corporation Tribo-electric powder spray gun
EP0627265A1 (en) * 1993-06-02 1994-12-07 Matsuo Sangyo Co., Ltd. Frictional electrification gun
US5395046A (en) * 1993-10-25 1995-03-07 Nordson Corporation Hand-held spray gun with replaceable handle
WO1995024272A1 (en) * 1994-03-06 1995-09-14 Sealflock Aktiebolag Method and device for application of fibres on a surface
US5487624A (en) * 1993-02-22 1996-01-30 I.T.M. Corporation Powder feeding apparatus, electrostatic powder coating apparatus and powder flow-rate measuring apparatus
US5622313A (en) * 1995-03-03 1997-04-22 Nordson Corporation Triboelectric powder spray gun with internal discharge electrode and method of powder coating
WO1999001227A1 (en) * 1997-07-04 1999-01-14 University Of Southampton Improved targeting of flying insects with insecticides and apparatus for charging liquids
US5885351A (en) * 1997-02-18 1999-03-23 Pfs Thermoplastic Powder Coatings, Inc. Tribocharge applicator device
WO1999061166A1 (en) * 1998-05-22 1999-12-02 Sarnoff Corporation Focused acoustic bead charger/dispenser for bead manipulating chucks
US6032871A (en) * 1997-07-15 2000-03-07 Abb Research Ltd. Electrostatic coating process

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225090A (en) * 1979-09-07 1980-09-30 Toyota Jidosha Kogyo Kabushiki Kaisha Device for painting by electrostatic powder spraying
US4798340A (en) * 1986-01-14 1989-01-17 Esb Elektrostatische Spruh- Und Beschichtungsanlagen G.F. Vohringer Gmbh Electrostatic device for powder spraying with triboelectric powder charging
EP0592137A1 (en) * 1992-10-05 1994-04-13 Nordson Corporation Tribo-electric powder spray gun
US5487624A (en) * 1993-02-22 1996-01-30 I.T.M. Corporation Powder feeding apparatus, electrostatic powder coating apparatus and powder flow-rate measuring apparatus
EP0627265A1 (en) * 1993-06-02 1994-12-07 Matsuo Sangyo Co., Ltd. Frictional electrification gun
US5395046A (en) * 1993-10-25 1995-03-07 Nordson Corporation Hand-held spray gun with replaceable handle
WO1995024272A1 (en) * 1994-03-06 1995-09-14 Sealflock Aktiebolag Method and device for application of fibres on a surface
US5622313A (en) * 1995-03-03 1997-04-22 Nordson Corporation Triboelectric powder spray gun with internal discharge electrode and method of powder coating
US5885351A (en) * 1997-02-18 1999-03-23 Pfs Thermoplastic Powder Coatings, Inc. Tribocharge applicator device
WO1999001227A1 (en) * 1997-07-04 1999-01-14 University Of Southampton Improved targeting of flying insects with insecticides and apparatus for charging liquids
US6032871A (en) * 1997-07-15 2000-03-07 Abb Research Ltd. Electrostatic coating process
WO1999061166A1 (en) * 1998-05-22 1999-12-02 Sarnoff Corporation Focused acoustic bead charger/dispenser for bead manipulating chucks

Also Published As

Publication number Publication date
AU2001276859A1 (en) 2002-01-21
KR20030022858A (en) 2003-03-17
CN1635932A (en) 2005-07-06
EP1303356B1 (en) 2004-10-20
EP1303356A2 (en) 2003-04-23
CA2413267A1 (en) 2002-01-17
DE60106617T2 (en) 2005-12-01
WO2002004127A2 (en) 2002-01-17
JP2004502532A (en) 2004-01-29
DE60106617D1 (en) 2004-11-25

Similar Documents

Publication Publication Date Title
WO2002004127A3 (en) Unipolarity powder coating systems including improved tribocharging and corona guns
EP1008392A3 (en) Electrocstatic powder coating apparatus
JP4428973B2 (en) Rotating atomizing coating apparatus and coating method
EP0885658B1 (en) Convertible spray gun
DE3666150D1 (en) Method for spray coating objects, and spray gun for carrying out this method
WO1985001455A1 (en) Rotary atomizer spray painting device
ES2010370A6 (en) Powder spray gun for quick color change systems
AU5897590A (en) Paint hose extension for electrostatic spray gun
CA2077968A1 (en) Air Directing Ring for Fluid Spray Gun Air Cap
WO2001096481A3 (en) Protective coating
US3767116A (en) Nozzle for electrostatic powder spraying apparatus
WO2003004169A3 (en) Unipolarity powder coating systems including improved tribocharging and corona guns
EP0804969A2 (en) Reversible tip for high pressure air assisted spraying
US6247657B1 (en) Power gun spray nozzle and method
WO2003006171A3 (en) Unipolarity powder coating systems including improved tribocharging and corona guns
JPS56141864A (en) Rotary atomizing electrostatic coating device
JPH02198654A (en) Liquid charged atomization device
JPH11188292A (en) Electrostatic coating gun using bell type rotary atomizing head
Henne et al. Influence of nozzle geometry on particle behaviour and coating quality in high-velocity VPS
DE50001683D1 (en) Spray head for an electrostatic rotary atomizer
JP3753646B2 (en) Rotary atomizing coating equipment
US8888018B2 (en) Powder gun deflector
GB2063713A (en) Spray guns
JPS5570366A (en) Spray gun for powder painting
JP3588699B2 (en) Frictional electrostatic powder coating equipment

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

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 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: A2

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

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

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 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: A3

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

WWE Wipo information: entry into national phase

Ref document number: 2413267

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 12/MUMNP/2003

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 1020037000407

Country of ref document: KR

Ref document number: 01812562X

Country of ref document: CN

Ref document number: PA/A/2003/000299

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 2001954626

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020037000407

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2001954626

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: 2001954626

Country of ref document: EP