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FR2402525A1 - Procede de fabrication de compositions de lentilles de contact molles et nouveaux produits ainsi obtenus - Google Patents

Procede de fabrication de compositions de lentilles de contact molles et nouveaux produits ainsi obtenus

Info

Publication number
FR2402525A1
FR2402525A1 FR7825968A FR7825968A FR2402525A1 FR 2402525 A1 FR2402525 A1 FR 2402525A1 FR 7825968 A FR7825968 A FR 7825968A FR 7825968 A FR7825968 A FR 7825968A FR 2402525 A1 FR2402525 A1 FR 2402525A1
Authority
FR
France
Prior art keywords
lens
component
original solution
molds
monomers
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.)
Granted
Application number
FR7825968A
Other languages
English (en)
Other versions
FR2402525B1 (fr
Inventor
Shinzo Ohkado
Hideki Kenjo
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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
Priority claimed from JP10892677A external-priority patent/JPS5443284A/ja
Priority claimed from JP10892577A external-priority patent/JPS5923271B2/ja
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Publication of FR2402525A1 publication Critical patent/FR2402525A1/fr
Application granted granted Critical
Publication of FR2402525B1 publication Critical patent/FR2402525B1/fr
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • B29D11/00009Production of simple or compound lenses
    • B29D11/00038Production of contact lenses
    • B29D11/00125Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041Lenses
    • G02B1/043Contact lenses
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/808Lens mold

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Procédé de préparation de compositions pour lentilles de contact molles et nouveaux produits ainsi obtenus. Ces lentilles sont produites en déversant un excès d'une solution d'origine dans un moule concave, pourvu d'une surface d'interférence 1, en plaçant un moule convexe ayant une surface sans interférence 2, sur le moule concave, et en faisant déborder l'extrait de la solution d'origine pour remplir ainsi uniformément cette solution, dans un espace entre moule concave et le moule convexe, en gélifiant la solution d'origine entre les deux moules pour former entre eux une lentille ayant une résistance à la traction d'au moins environ 0,1 kg/cm**2, à immerger la lentille et les deux moules dans un liquide pour retirer la lentille à partir des moules par pelage, et à extraire la lentille à l'aide d'un traitement d'extraction avec de l'eau ; la solution d'origine contient un composant A choisi dans le groupe se composant de monomères et de polymères hydrophiles, où les monomères fournissent le composant hydrophile par polymérisation, un composant B choisi dans le groupe se composant de monomères et de polymères hydrophobes, où les monomères fournissent un composant hydrophobe par polymérisation, et un solvant C, le rapport en poids A : B étant d'environ 85 : 15 à environ 55 : 45 et le solvant C étant environ 5 à 95 % en poids.
FR7825968A 1977-09-12 1978-09-08 Procede de fabrication de compositions de lentilles de contact molles et nouveaux produits ainsi obtenus Granted FR2402525A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10892677A JPS5443284A (en) 1977-09-12 1977-09-12 Dope for forming soft contact lens
JP10892577A JPS5923271B2 (ja) 1977-09-12 1977-09-12 ソフトコンタクトレンズの製造方法

Publications (2)

Publication Number Publication Date
FR2402525A1 true FR2402525A1 (fr) 1979-04-06
FR2402525B1 FR2402525B1 (fr) 1982-02-05

Family

ID=26448750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825968A Granted FR2402525A1 (fr) 1977-09-12 1978-09-08 Procede de fabrication de compositions de lentilles de contact molles et nouveaux produits ainsi obtenus

Country Status (5)

Country Link
US (2) US4347198A (fr)
AU (1) AU530070B2 (fr)
DE (1) DE2839249A1 (fr)
FR (1) FR2402525A1 (fr)
GB (1) GB2006091B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
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EP0187652A2 (fr) * 1985-01-09 1986-07-16 Menicon Co., Ltd. Lentille de contact avec grande absorption d'eau
EP0216074A2 (fr) * 1985-07-31 1987-04-01 Ciba-Geigy Ag Dérivés de polyvinylalcool et lentilles de contact à base d'un hydrogel réticulé
WO1993004848A1 (fr) * 1991-09-12 1993-03-18 Bausch & Lomb Incorporated Procede et appareil de moulage de lentilles
EP0645235A2 (fr) * 1990-04-17 1995-03-29 JOHNSON & JOHNSON VISION PRODUCTS, INC. Procédé pour l'hydration des lentilles souples de contact

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DE3402648A1 (de) * 1983-01-28 1984-08-02 Canon K.K., Tokio/Tokyo Formgebungsvorrichtung fuer ein optisches element
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GB8601967D0 (en) * 1986-01-28 1986-03-05 Coopervision Optics Manufacturing contact lenses
CS260213B1 (en) * 1986-03-05 1988-12-15 Jiri Sulc Method of polymerization casting of articles especially lenses from hydrophilic gels and equipment for realization of this method
US4729892A (en) * 1986-03-21 1988-03-08 Ciba-Geigy Corporation Use of cross-linked hydrogel materials as image contrast agents in proton nuclear magnetic resonance tomography and tissue phantom kits containing such materials
US5149052A (en) * 1987-11-16 1992-09-22 Kingston Technologies, Inc. Precision molding of polymers
US4865779A (en) * 1987-12-15 1989-09-12 Minnesota Mining And Manufacturing Company Lens molding apparatus and method
US4978713A (en) * 1987-12-16 1990-12-18 Ciba-Geigy Corporation Polyvinyl alcohol derivatives containing pendant vinylic monomer reaction product units bound through ether groups and hydrogel contact lenses made therefrom
JP2802287B2 (ja) * 1988-05-31 1998-09-24 ピルキングトン ビジョンケア インコーポレイテッド コンタクトレンズ材料とその製法
ES2108208T3 (es) * 1988-11-02 1997-12-16 British Tech Group Moldeado por vaciado y envasado de lentes de contacto.
US5573108A (en) * 1988-11-02 1996-11-12 British Technology Group Ltd. Disposable contact lens package
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US5264161A (en) * 1991-09-05 1993-11-23 Bausch & Lomb Incorporated Method of using surfactants as contact lens processing aids
US5260000A (en) * 1992-08-03 1993-11-09 Bausch & Lomb Incorporated Process for making silicone containing hydrogel lenses
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JP3890128B2 (ja) * 1997-10-28 2007-03-07 沖電気工業株式会社 反射型プリズム
FR2772302B1 (fr) 1997-12-11 2000-01-21 Essilor Int Procede d'obtention d'une lentille ophtalmique comportant une microstructure utilitaire en surface et lentilles ophtalmiques ainsi obtenues
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CN102639636A (zh) * 2009-12-07 2012-08-15 诺瓦提斯公司 用于增加接触透镜的离子传输率的方法
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TW202424596A (zh) 2010-07-30 2024-06-16 瑞士商愛爾康公司 水合隱形鏡片
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FR2109470A5 (fr) * 1970-10-19 1972-05-26 Silor
FR2270082A1 (fr) * 1974-05-06 1975-12-05 Bausch & Lomb

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0187652A2 (fr) * 1985-01-09 1986-07-16 Menicon Co., Ltd. Lentille de contact avec grande absorption d'eau
EP0187652A3 (en) * 1985-01-09 1988-11-30 Toyo Contact Lens Co., Ltd. High water-absorptive soft contact lens
US4829126A (en) * 1985-01-09 1989-05-09 Toyo Contact Lens Co., Ltd. High water-absorptive soft contact lens
EP0216074A2 (fr) * 1985-07-31 1987-04-01 Ciba-Geigy Ag Dérivés de polyvinylalcool et lentilles de contact à base d'un hydrogel réticulé
EP0216074A3 (en) * 1985-07-31 1989-10-18 Ciba-Geigy Ag Polyvinyl alcohol derivatives and crosslinked hydrogel contact lenses made therefrom
EP0645235A2 (fr) * 1990-04-17 1995-03-29 JOHNSON & JOHNSON VISION PRODUCTS, INC. Procédé pour l'hydration des lentilles souples de contact
EP0645235A3 (fr) * 1990-04-17 1996-04-24 Johnson & Johnson Vision Prod Procédé pour l'hydration des lentilles souples de contact.
WO1993004848A1 (fr) * 1991-09-12 1993-03-18 Bausch & Lomb Incorporated Procede et appareil de moulage de lentilles
US5271875A (en) * 1991-09-12 1993-12-21 Bausch & Lomb Incorporated Method for molding lenses
US5466147A (en) * 1991-09-12 1995-11-14 Bausch & Lomb Incorporated Apparatus for molding lenses

Also Published As

Publication number Publication date
US4699934A (en) 1987-10-13
FR2402525B1 (fr) 1982-02-05
DE2839249A1 (de) 1979-03-22
US4347198A (en) 1982-08-31
AU3974878A (en) 1980-03-20
GB2006091A (en) 1979-05-02
GB2006091B (en) 1982-03-31
AU530070B2 (en) 1983-06-30
DE2839249C2 (fr) 1991-09-12

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