ATE179924T1 - Verfahren zur entformung, extraktion und reinigung von gegenständen aus kunststoff mittels einer flüssigkeit im superkritischem zustand - Google Patents

Verfahren zur entformung, extraktion und reinigung von gegenständen aus kunststoff mittels einer flüssigkeit im superkritischem zustand

Info

Publication number
ATE179924T1
ATE179924T1 AT96901799T AT96901799T ATE179924T1 AT E179924 T1 ATE179924 T1 AT E179924T1 AT 96901799 T AT96901799 T AT 96901799T AT 96901799 T AT96901799 T AT 96901799T AT E179924 T1 ATE179924 T1 AT E179924T1
Authority
AT
Austria
Prior art keywords
lens
mold
polymeric article
deforming
extracting
Prior art date
Application number
AT96901799T
Other languages
English (en)
Inventor
Roger James Hoffman
Wilson Leonard Terry Jr
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
Application granted granted Critical
Publication of ATE179924T1 publication Critical patent/ATE179924T1/de

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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Eyeglasses (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
AT96901799T 1995-02-22 1996-02-09 Verfahren zur entformung, extraktion und reinigung von gegenständen aus kunststoff mittels einer flüssigkeit im superkritischem zustand ATE179924T1 (de)

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
ATE179924T1 true ATE179924T1 (de) 1999-05-15

Family

ID=23553303

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96901799T ATE179924T1 (de) 1995-02-22 1996-02-09 Verfahren zur entformung, extraktion und reinigung von gegenständen aus kunststoff mittels einer flüssigkeit im superkritischem zustand

Country Status (19)

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

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JP3447296B2 (ja) * 1994-01-31 2003-09-16 ボシュ アンド ロム インコーポレイテッド コンタクトレンズの超臨界流体での処理
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
AU5609000A (en) * 1999-07-01 2001-01-22 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
AU7478800A (en) * 1999-09-24 2001-04-30 Bausch & Lomb Incorporated Process for purifying and reusing solvent used to remove extractables
AU7922800A (en) † 1999-10-27 2001-05-08 Novartis Ag Deblocking contact lenses
US6514438B1 (en) * 1999-12-21 2003-02-04 Bausch & Lomb Incorporated Pulse extraction of ocular medical devices
ATE336351T1 (de) * 2000-09-29 2006-09-15 Depuy Orthopaedics Inc Behandlung eines bestrahlten vorformlings eines prothetischen lagerelementes aus polyethylen mit einem überkritischen fluid
US6939487B1 (en) * 2000-10-13 2005-09-06 Novartis A.G. Deblocking contact lenses
AU2002364530B2 (en) * 2001-12-12 2008-09-25 Depuy Products, Inc. Orthopaedic device and method for making 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
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
EP1504040A1 (de) * 2002-04-23 2005-02-09 Boehringer Ingelheim Pharmaceuticals Inc. Verfahrung zur verringerung von organischem restlösungsmittel aus carbomer
US20040002770A1 (en) * 2002-06-28 2004-01-01 King Richard S. Polymer-bioceramic composite for orthopaedic applications and method of manufacture thereof
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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
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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 (de) * 2004-06-28 2006-01-04 Universidade de Coimbra Methode zur Herstellung von verzögert freisetzenden therapeutischen ophthalmologischen Formulierungen unter Anwendung komprimierter Flüssigkeiten für die Imprägnierung von Arzneistoffen.
US7384430B2 (en) * 2004-06-30 2008-06-10 Depuy Products, Inc. Low crystalline polymeric material for orthopaedic implants and an associated method
MX2007001223A (es) * 2004-08-05 2007-04-17 Mallinckrodt Baker Inc Preparacion de articulos polimericos ultrapuros.
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
US7879275B2 (en) * 2004-12-30 2011-02-01 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
US7896921B2 (en) * 2004-12-30 2011-03-01 Depuy Products, Inc. Orthopaedic bearing and method for making the same
EP1683626A1 (de) * 2005-01-25 2006-07-26 Linde Aktiengesellschaft Verfahren und Vorrichtung zum Behandeln von Spritzgussartikeln mit Gas
US20070132121A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Method of cleaning molds using super-cooled fluids
US20070132120A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Preferential release of an ophthalmic lens using a super-cooled fluid
US20070132119A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Use of a super-cooled fluid in the manufacture of contact lenses
US20070132125A1 (en) * 2005-12-08 2007-06-14 Bausch & Lomb Incorporated Use of a super-cooled fluid in lens processing
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
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EP2066493B1 (de) * 2006-09-21 2011-03-30 Novartis AG Verfahren zur entnahme von kontaktlinsen aus einer form
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JP2017505817A (ja) 2014-02-04 2017-02-23 アボット カーディオバスキュラー システムズ インコーポレイテッド コーティングに対するｎｏｖｏｌｉｍｕｓの結合が最小限になるように、ｎｏｖｏｌｉｍｕｓとラクチドとをベースにするコーティングを有する薬物送達足場またはステント
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
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CN109575354B (zh) * 2018-11-16 2022-12-23 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
CN113039215A (zh) * 2018-11-19 2021-06-25 Cens材料有限公司 小尺寸材料经由空化的分散
EP3738991A1 (de) * 2019-05-17 2020-11-18 Evonik Operations GmbH Verfahren zum lösen von klebstoffen
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Also Published As

Publication number Publication date
DE69602427T2 (de) 1999-10-07
EP0809564A1 (de) 1997-12-03
DE69602427D1 (de) 1999-06-17
US5607518A (en) 1997-03-04
WO1996026059A1 (en) 1996-08-29
EP0809564B1 (de) 1999-05-12
ZA961365B (en) 1996-08-22
HUP9702450A2 (hu) 1998-03-30
CN1175921A (zh) 1998-03-11
CZ266197A3 (en) 1997-11-12
PL321941A1 (en) 1998-01-05
MX9706417A (es) 1997-11-29
JPH11500078A (ja) 1999-01-06
IL117143A0 (en) 1996-06-18
KR19980702373A (ko) 1998-07-15
FI973381A (fi) 1997-08-18
BR9607340A (pt) 1997-11-25
NO973809D0 (no) 1997-08-19
NO973809L (no) 1997-10-22
AU4623296A (en) 1996-09-11
TW291541B (de) 1996-11-21
FI973381A0 (fi) 1997-08-18
CA2211023A1 (en) 1996-08-29

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