HUP9702450A2 - Eljárás polimer gyártmányok szuperkritikus folyadékkal történő leválasztására, extrakciójára és tisztítására - Google Patents

Eljárás polimer gyártmányok szuperkritikus folyadékkal történő leválasztására, extrakciójára és tisztítására

Info

Publication number
HUP9702450A2
HUP9702450A2 HU9702450A HUP9702450A HUP9702450A2 HU P9702450 A2 HUP9702450 A2 HU P9702450A2 HU 9702450 A HU9702450 A HU 9702450A HU P9702450 A HUP9702450 A HU P9702450A HU P9702450 A2 HUP9702450 A2 HU P9702450A2
Authority
HU
Hungary
Prior art keywords
lenses
deblocking
extracting
sub
supercritical fluid
Prior art date
Application number
HU9702450A
Other languages
English (en)
Inventor
Roger James Hoffman
Wilson Leonard Terry
Original Assignee
Novartis 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
Application filed by Novartis Ag. filed Critical Novartis Ag.
Publication of HUP9702450A2 publication Critical patent/HUP9702450A2/hu

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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/102—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid
    • B08B3/104—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid using propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0021—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by liquid gases or supercritical fluids
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/009—After-treatment of articles without altering their shape; Apparatus therefor using gases without chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00076—Production of contact lenses enabling passage of fluids, e.g. oxygen, tears, between the area under the lens and the lens exterior
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
    • B29C2071/0027—Removing undesirable residual components, e.g. solvents, unreacted monomers
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
    • B29C2071/0054—Supercritical fluid treatment, i.e. using a liquid in which distinct liquid and gas phases do not exist
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0041—Contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Eyeglasses (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A találmány tárgya eljárás egy pőlimer gyártmánynak egy öntőfőrmáróltörténő leválasztására és/vagy nemkívánatős anyagőknak egy pőlimergyártámány belsejéből és/vagy felületéről történő eltávőlításáraszűperkritikűs főlyadékők alkalmazásával. Az egyik előnyös megőldásértelmében a találmány szerinti eljárással szemészeti lencséket,példáűl kőntaktlencséket kezelnek. A főképp szén-diőxidből állószűperkritikűs főlyadékkal a pőlimerizációs lépés kezelik a főrmákhőztapadt kőntaktlencséket. A szűperkritikűs főlyadék alkalmazásával alencséket hatékőnyan és kőnzisztensen választják el a főrmáról, alencsemagból eltávőlítják a nemkívánatős anyagőkat, példáűl azelreagálatlan mőnőmert, őligőmereket és/vagy a visszamaradtőldószereket, illetve letisztítják a lencsefelületről a hőzzátapadttöredékeket. ŕ
HU9702450A 1995-02-22 1996-02-09 Eljárás polimer gyártmányok szuperkritikus folyadékkal történő leválasztására, extrakciójára és tisztítására HUP9702450A2 (hu)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/393,107 US5607518A (en) 1995-02-22 1995-02-22 Methods of deblocking, extracting and cleaning polymeric articles with supercritical fluids

Publications (1)

Publication Number Publication Date
HUP9702450A2 true HUP9702450A2 (hu) 1998-03-30

Family

ID=23553303

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9702450A HUP9702450A2 (hu) 1995-02-22 1996-02-09 Eljárás polimer gyártmányok szuperkritikus folyadékkal történő leválasztására, extrakciójára és tisztítására

Country Status (19)

Country Link
US (1) US5607518A (hu)
EP (1) EP0809564B1 (hu)
JP (1) JPH11500078A (hu)
KR (1) KR19980702373A (hu)
CN (1) CN1175921A (hu)
AT (1) ATE179924T1 (hu)
AU (1) AU4623296A (hu)
BR (1) BR9607340A (hu)
CA (1) CA2211023A1 (hu)
CZ (1) CZ266197A3 (hu)
DE (1) DE69602427T2 (hu)
FI (1) FI973381A0 (hu)
HU (1) HUP9702450A2 (hu)
IL (1) IL117143A0 (hu)
NO (1) NO973809L (hu)
PL (1) PL321941A1 (hu)
TW (1) TW291541B (hu)
WO (1) WO1996026059A1 (hu)
ZA (1) ZA961365B (hu)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69511067T2 (de) 1994-01-31 1999-12-09 Bausch & Lomb Inc., Rochester Verfahren zur behandlung von kontaktlinsen mit superkritischen fluidum
US5860467A (en) 1996-12-03 1999-01-19 The University Of North Carolina At Chapel Hill Use of CO2 -soluble materials in making molds
US6497000B1 (en) * 1999-09-30 2002-12-24 Novartis Ag Apparatus for cleaning ophthalmic components
WO2001002881A1 (en) * 1999-07-01 2001-01-11 Bausch & Lomb Incorporated Process for removing extractables from polymeric contact lenses
AT407967B (de) * 1999-08-26 2001-07-25 Schmoll Ralph Vorrichtung zum abblocken von optischen gläsern, insbesondere von brillengläsern
JP2001158827A (ja) * 1999-09-21 2001-06-12 Daicel Chem Ind Ltd プラスチック成形品の表面改質方法及び表面改質プラスチック成形品
CA2384652A1 (en) 1999-09-24 2001-04-05 Baush & Lomb Incorporated Process for purifying and reusing solvent used to remove extractables
DE60021595T3 (de) † 1999-10-27 2011-08-18 Novartis AG, 4056 Entformung von kontakt-linsen
US6514438B1 (en) * 1999-12-21 2003-02-04 Bausch & Lomb Incorporated Pulse extraction of ocular medical devices
WO2002026464A1 (en) * 2000-09-29 2002-04-04 Depuy Orthopaedics, Inc. Supercritical fluid treatment of irradiated polyethylene
US6939487B1 (en) * 2000-10-13 2005-09-06 Novartis A.G. Deblocking contact lenses
US7160492B2 (en) * 2001-12-12 2007-01-09 Depuy Products, Inc. Orthopaedic device for implantation in the body of an animal and method for making the same
US7819925B2 (en) * 2002-01-28 2010-10-26 Depuy Products, Inc. Composite prosthetic bearing having a crosslinked articulating surface and method for making the same
US7186364B2 (en) * 2002-01-28 2007-03-06 Depuy Products, Inc. Composite prosthetic bearing constructed of polyethylene and an ethylene-acrylate copolymer and method for making the same
JP2005523951A (ja) * 2002-04-23 2005-08-11 ベーリンガー インゲルハイム ファーマシューティカルズ インコーポレイテッド カルボマー中の残留有機溶媒の低減方法
US20040002770A1 (en) * 2002-06-28 2004-01-01 King Richard S. Polymer-bioceramic composite for orthopaedic applications and method of manufacture thereof
US7174744B2 (en) * 2002-08-20 2007-02-13 American Air Liquide, Inc. Method of improving the biocidal efficacy of dry ice
US6827093B2 (en) * 2002-11-14 2004-12-07 Lens Technology I, Llc Optical lens steam cleaning apparatus and method of using the same
US7285287B2 (en) * 2002-11-14 2007-10-23 Synecor, Llc Carbon dioxide-assisted methods of providing biocompatible intraluminal prostheses
US7938861B2 (en) * 2003-04-15 2011-05-10 Depuy Products, Inc. Implantable orthopaedic device and method for making the same
US20040262809A1 (en) * 2003-06-30 2004-12-30 Smith Todd S. Crosslinked polymeric composite for orthopaedic implants
US7368589B2 (en) * 2003-10-31 2008-05-06 Johnson & Johnson Vision Care, Inc. Purification of silicone containing compounds by supercritical fluid extraction
DE10353553A1 (de) * 2003-11-14 2005-06-23 Stockmar, Günter Verfahren zum thermischen Abblocken bzw. Abtauen des Alloys sowie ein mit Alloy an einem Werkstück festgelegtes Blockstück
JP4495476B2 (ja) * 2004-02-09 2010-07-07 Ｈｏｙａ株式会社 反射防止膜を有する光学素子の製造方法
US20050258096A1 (en) * 2004-05-21 2005-11-24 Bausch & Lomb Incorporated Process for extracting biomedical devices
US20050276723A1 (en) * 2004-06-15 2005-12-15 Meenakshi Sundaram Aseptic sterilant using ozone in liquid carbon dioxide
EP1611877A1 (en) * 2004-06-28 2006-01-04 Universidade de Coimbra Method for preparing sustained-release therapeutic ophthalmic articles using compressed fluids for impregnation of drugs
US7384430B2 (en) * 2004-06-30 2008-06-10 Depuy Products, Inc. Low crystalline polymeric material for orthopaedic implants and an associated method
CA2575987A1 (en) * 2004-08-05 2006-03-02 Mallinckrodt Baker, Inc. Preparation of ultrapure polymeric articles
US20060078592A1 (en) * 2004-10-12 2006-04-13 Bausch & Lomb Incorporated Drug delivery systems
US20060130881A1 (en) * 2004-12-21 2006-06-22 Sanjay Rastogi Method of cleaning optical tools for making contact lens molds using super-cooled fluids
US20060131769A1 (en) * 2004-12-22 2006-06-22 Bausch & Lomb Incorporated Pre-polymer extraction using a super-cooled fluid
US7896921B2 (en) * 2004-12-30 2011-03-01 Depuy Products, Inc. Orthopaedic bearing and method for making the same
US7883653B2 (en) 2004-12-30 2011-02-08 Depuy Products, Inc. Method of making an implantable orthopaedic bearing
US7879275B2 (en) * 2004-12-30 2011-02-01 Depuy Products, Inc. Orthopaedic bearing and method for making the same
EP1683626A1 (en) * 2005-01-25 2006-07-26 Linde Aktiengesellschaft Method and apparatus for treating injection moulded articles with gas
US20070132125A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Use of a super-cooled fluid in lens processing
US20070132120A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Preferential release of an ophthalmic lens using a super-cooled fluid
US20070132121A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Method of cleaning molds using super-cooled fluids
US20070132119A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Use of a super-cooled fluid in the manufacture of contact lenses
US20070132118A1 (en) * 2005-12-09 2007-06-14 Bausch And Lomb Incorporated Method and Apparatus for Treatment of a Device-in-Mold Assembly with a Supercritical Fluid
US20070138670A1 (en) * 2005-12-20 2007-06-21 Bausch And Lomb Incorporated Method and Apparatus for the Dry Release of a Compliant Opthalmic Article from a Mold Surface
US7811483B2 (en) * 2006-06-01 2010-10-12 Coopervision International Holding Company, Lp Delensing of ophthalmic lenses using gas
US8231218B2 (en) 2006-06-15 2012-07-31 Coopervision International Holding Company, Lp Wettable silicone hydrogel contact lenses and related compositions and methods
ES2289933B1 (es) * 2006-07-06 2009-05-06 RAFER & PROJECT, S.L. Procedimiento para desbloqueo del soporte y eliminacion de lamina protectora de lentes durante su fabricacion.
MY147579A (en) * 2006-09-21 2012-12-31 Novartis Ag Method of de-molding contact lenses
US8037415B1 (en) 2007-09-21 2011-10-11 United Services Automobile Association (Usaa) Systems, methods, and computer readable media for managing a hosts file
US20100109176A1 (en) 2008-11-03 2010-05-06 Chris Davison Machined lens molds and methods for making and using same
US8313675B2 (en) * 2009-08-31 2012-11-20 Coopervision International Holding Company, Lp Demolding of ophthalmic lenses during the manufacture thereof
JP2011051098A (ja) * 2009-08-31 2011-03-17 Olympus Corp 光学素子の製造方法、及び、光学素子
WO2012045171A1 (en) * 2010-10-07 2012-04-12 Husky Injection Molding System Ltd. A molding stack having vent cleaning
FR2994850B1 (fr) * 2012-09-04 2015-07-17 Jean-Marie Andre Procede de traitement pour l'elaboration d'implants ou de protheses de polymeres a liberation controlee de principes actifs.
CN105142688B (zh) 2014-02-04 2018-01-19 艾博特心血管系统公司 具有基于novolimus和丙交酯的涂层使得novolimus与涂层具有最小键合量的药物递送支架或支撑件
FR3032904B1 (fr) * 2015-02-19 2017-11-10 Prodways Procede de post-traitement d'objets tridimensionnels fabriques par stereolithographie
WO2016198405A1 (en) * 2015-06-08 2016-12-15 Eidgenössische Technische Hochschule Zürich Polymer compositions and processing thereof
DE102015219948A1 (de) * 2015-10-14 2017-04-20 Volkswagen Aktiengesellschaft Verfahren zur Entfernung von Monomeren und/oder Oligomeren aus einem durch Polymerisation entstandenen Bauteil
US10567084B2 (en) 2017-12-18 2020-02-18 Honeywell International Inc. Thermal interface structure for optical transceiver modules
CN115873300A (zh) * 2018-11-16 2023-03-31 浙江大学 一种用超/亚临界流体脱除海绵中挥发性有机物的方法
US20220006092A1 (en) * 2018-11-19 2022-01-06 Cens Materials Ltd. Dispersion of small scale materials via cavitation
EP3738991A1 (de) * 2019-05-17 2020-11-18 Evonik Operations GmbH Verfahren zum lösen von klebstoffen
CN111965874B (zh) * 2020-08-07 2023-12-29 Tcl华星光电技术有限公司 液晶显示面板的制作方法及液晶显示面板

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT313039B (de) * 1971-05-07 1974-01-25 Studiengesellschaft Kohle Mbh Verfahren zur Gewinnung von Coffein aus Rohkaffee
JPS63309403A (ja) * 1987-06-12 1988-12-16 Nkk Corp 泥漿鋳込み成形用鋳型
US4873218A (en) * 1988-05-26 1989-10-10 The United States Department Of Energy Low density, resorcinol-formaldehyde aerogels
US4882107A (en) * 1988-11-23 1989-11-21 Union Carbide Chemicals And Plastics Company Inc. Mold release coating process and apparatus using a supercritical fluid
GB8928250D0 (en) * 1989-12-14 1990-02-21 Erba Carlo Spa Use of supercritical fluids to obtain porous sponges of biodegradable polymers
US5306350A (en) * 1990-12-21 1994-04-26 Union Carbide Chemicals & Plastics Technology Corporation Methods for cleaning apparatus using compressed fluids
EP0564396A1 (de) * 1992-04-01 1993-10-06 SULZER Medizinaltechnik AG Verfahren und Vorrichtung zur Reinigung und Keimverminderung von textilen medizinischen Implantaten
JPH0627424A (ja) * 1992-07-09 1994-02-04 Asahi Chem Ind Co Ltd コンタクトレンズ材料およびその製造方法
US5339844A (en) * 1992-08-10 1994-08-23 Hughes Aircraft Company Low cost equipment for cleaning using liquefiable gases
US5456759A (en) * 1992-08-10 1995-10-10 Hughes Aircraft Company Method using megasonic energy in liquefied gases
DE4309734A1 (de) * 1993-03-25 1994-09-29 Akzo Nobel Nv Verfahren zum Reinigen von Hohlfasern

Also Published As

Publication number Publication date
DE69602427T2 (de) 1999-10-07
FI973381A (fi) 1997-08-18
EP0809564B1 (en) 1999-05-12
KR19980702373A (ko) 1998-07-15
MX9706417A (es) 1997-11-29
ZA961365B (en) 1996-08-22
PL321941A1 (en) 1998-01-05
ATE179924T1 (de) 1999-05-15
BR9607340A (pt) 1997-11-25
EP0809564A1 (en) 1997-12-03
IL117143A0 (en) 1996-06-18
DE69602427D1 (de) 1999-06-17
CN1175921A (zh) 1998-03-11
NO973809L (no) 1997-10-22
WO1996026059A1 (en) 1996-08-29
TW291541B (hu) 1996-11-21
JPH11500078A (ja) 1999-01-06
CZ266197A3 (en) 1997-11-12
FI973381A0 (fi) 1997-08-18
US5607518A (en) 1997-03-04
NO973809D0 (no) 1997-08-19
AU4623296A (en) 1996-09-11
CA2211023A1 (en) 1996-08-29

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