ES2137495T3 - Tratamiento de lentes de contacto con fluido supercritico. - Google Patents

Tratamiento de lentes de contacto con fluido supercritico.

Info

Publication number
ES2137495T3
ES2137495T3 ES95908125T ES95908125T ES2137495T3 ES 2137495 T3 ES2137495 T3 ES 2137495T3 ES 95908125 T ES95908125 T ES 95908125T ES 95908125 T ES95908125 T ES 95908125T ES 2137495 T3 ES2137495 T3 ES 2137495T3
Authority
ES
Spain
Prior art keywords
treatment
contact lenses
supercritical fluid
lenses
supercritical fluids
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.)
Expired - Lifetime
Application number
ES95908125T
Other languages
English (en)
Inventor
Rajan S Bawa
Frank Tasber
Dennis Hahn
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.)
Bausch and Lomb Inc
Original Assignee
Bausch and Lomb Inc
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 Bausch and Lomb Inc filed Critical Bausch and Lomb Inc
Application granted granted Critical
Publication of ES2137495T3 publication Critical patent/ES2137495T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B29D11/00201—Demoulding, e.g. separating lenses from mould halves using cooling means
    • 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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ophthalmology & Optometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Eyeglasses (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

UN METODO DE TRATAMIENTO DE LENTES DE CONTACTO HECHO CON MATERIALES POLIMERIZABLES PROPORCIONANDO FLUIDOS SUPERCRITICOS A LAS LENTES.
ES95908125T 1994-01-31 1995-01-24 Tratamiento de lentes de contacto con fluido supercritico. Expired - Lifetime ES2137495T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18934794A 1994-01-31 1994-01-31

Publications (1)

Publication Number Publication Date
ES2137495T3 true ES2137495T3 (es) 1999-12-16

Family

ID=22696923

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95908125T Expired - Lifetime ES2137495T3 (es) 1994-01-31 1995-01-24 Tratamiento de lentes de contacto con fluido supercritico.

Country Status (12)

Country Link
US (3) US6180031B1 (es)
EP (1) EP0741637B1 (es)
JP (2) JP3447296B2 (es)
KR (1) KR100346485B1 (es)
CN (1) CN1061589C (es)
AU (1) AU689850B2 (es)
BR (1) BR9507054A (es)
CA (1) CA2181984C (es)
DE (1) DE69511067T2 (es)
ES (1) ES2137495T3 (es)
MX (1) MX9603063A (es)
WO (1) WO1995020476A1 (es)

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Also Published As

Publication number Publication date
US20010048506A1 (en) 2001-12-06
CA2181984C (en) 2000-06-13
AU1607695A (en) 1995-08-15
MX9603063A (es) 1997-05-31
BR9507054A (pt) 1997-09-16
EP0741637A1 (en) 1996-11-13
KR100346485B1 (ko) 2002-11-30
HK1013809A1 (en) 1999-09-10
AU689850B2 (en) 1998-04-09
JPH09511000A (ja) 1997-11-04
US6610221B2 (en) 2003-08-26
JP2004004814A (ja) 2004-01-08
CN1061589C (zh) 2001-02-07
EP0741637B1 (en) 1999-07-28
DE69511067D1 (de) 1999-09-02
DE69511067T2 (de) 1999-12-09
US6071439A (en) 2000-06-06
CN1142209A (zh) 1997-02-05
US6180031B1 (en) 2001-01-30
WO1995020476A1 (en) 1995-08-03
JP3447296B2 (ja) 2003-09-16

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