CA1035095A - Amelioration de la resistance de lentilles plastiques moulees - Google Patents

Amelioration de la resistance de lentilles plastiques moulees

Info

Publication number
CA1035095A
CA1035095A CA208,163A CA208163A CA1035095A CA 1035095 A CA1035095 A CA 1035095A CA 208163 A CA208163 A CA 208163A CA 1035095 A CA1035095 A CA 1035095A
Authority
CA
Canada
Prior art keywords
yield
increasing
plastic lenses
cast plastic
cast
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
Application number
CA208,163A
Other languages
English (en)
Inventor
Herbert M. Bond
Daniel L. Torgersen
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.)
Buckbee Mears Co
Original Assignee
Buckbee Mears Co
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 Buckbee Mears Co filed Critical Buckbee Mears Co
Application granted granted Critical
Publication of CA1035095A publication Critical patent/CA1035095A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F18/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
    • C08F18/02—Esters of monocarboxylic acids
    • C08F18/04—Vinyl esters
    • C08F18/08—Vinyl acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Polymerization Catalysts (AREA)
CA208,163A 1974-02-11 1974-08-30 Amelioration de la resistance de lentilles plastiques moulees Expired CA1035095A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/441,645 US3944637A (en) 1974-02-11 1974-02-11 Increasing the yield of cast plastic lenses

Publications (1)

Publication Number Publication Date
CA1035095A true CA1035095A (fr) 1978-07-18

Family

ID=23753719

Family Applications (1)

Application Number Title Priority Date Filing Date
CA208,163A Expired CA1035095A (fr) 1974-02-11 1974-08-30 Amelioration de la resistance de lentilles plastiques moulees

Country Status (10)

Country Link
US (1) US3944637A (fr)
JP (1) JPS50110481A (fr)
BE (1) BE820731A (fr)
BR (1) BR7500738A (fr)
CA (1) CA1035095A (fr)
DE (1) DE2457202A1 (fr)
FR (1) FR2260590B1 (fr)
GB (1) GB1460933A (fr)
IT (1) IT1025885B (fr)
NL (1) NL7412671A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845445B2 (ja) * 1975-03-26 1983-10-11 日本原子力研究所 透明プラスチック成形体の製法
US4113686A (en) * 1977-06-09 1978-09-12 Burton, Parsons And Company, Inc. Hydrophilic contact lenses and lens polymer
US4238524A (en) * 1978-03-06 1980-12-09 American Optical Corporation Process for identification marking clear plastic articles
FR2449522A1 (fr) * 1979-02-20 1980-09-19 Essilor Int Procede de moulage, et moule correspondant, notamment pour moulage de lentilles ophtalmiques en matiere organique
NL8301482A (nl) * 1983-04-27 1984-11-16 Philips Nv Matrijs en methode voor de vervaardiging van voorwerpen van kunststof onder toepassing van de matrijs.
CS239282B1 (en) * 1983-08-17 1986-01-16 Otto Wichterle Preparation method of objects made from hydrophilic gelsnamely contact lences by polymer casting
US4664859A (en) * 1983-12-02 1987-05-12 Vcf Films Inc. Div. Of Pmc Process for solvent casting a film
US4537911A (en) * 1984-01-13 1985-08-27 The Dow Chemical Company Interface beads for mixed-bed ion exchange resins
US4693446A (en) * 1985-09-20 1987-09-15 Techna Vision, Inc. Gasket for molding plastic lenses
GB8611837D0 (en) * 1986-05-15 1986-06-25 Plessey Co Plc Photochromic spiropyran compounds
GB8614680D0 (en) * 1986-06-17 1986-07-23 Plessey Co Plc Photoreactive lenses
US5753730A (en) * 1986-12-15 1998-05-19 Mitsui Toatsu Chemicals, Inc. Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur-containing urethane resin lens and lens prepared thereby
JPH0694495B2 (ja) * 1987-04-18 1994-11-24 株式会社トクヤマ 重合性組成物
CA1316315C (fr) * 1988-02-22 1993-04-20 Nobuyuki Kajimoto Lentille plastique a indice de refraction eleve, procede de fabrication
NO174729C (no) * 1991-07-10 1994-06-22 Neosign As Fluorescerende folie
JP3969609B2 (ja) * 1997-09-17 2007-09-05 Ｈｏｙａ株式会社 プラスチックレンズ用注型成形材料およびプラスチックレンズの製造方法
US20070037897A1 (en) * 2005-08-12 2007-02-15 Guigui Wang Method for making contact lenses
EP2637847B1 (fr) 2010-11-10 2014-07-23 Novartis AG Procédé pour fabriquer des lentilles de contact
CN114316125B (zh) * 2022-01-27 2023-05-23 江苏铁锚玻璃股份有限公司 高耐热性有机玻璃配方及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542386A (en) * 1947-12-03 1951-02-20 John O Beattie Manufacture of plastic lenses from monomeric materials
GB1117191A (en) * 1964-10-13 1968-06-19 Mitsubishi Rayon Co Process for producing synthetic resin article having mar-resistant surface
US3422168A (en) * 1964-12-01 1969-01-14 Ppg Industries Inc Process of casting resinous lenses in thermoplastic cast replica molds

Also Published As

Publication number Publication date
FR2260590A1 (fr) 1975-09-05
IT1025885B (it) 1978-08-30
FR2260590B1 (fr) 1978-05-05
US3944637A (en) 1976-03-16
GB1460933A (en) 1977-01-06
BE820731A (nl) 1975-02-03
BR7500738A (pt) 1975-11-18
NL7412671A (nl) 1975-08-13
JPS50110481A (fr) 1975-08-30
DE2457202A1 (de) 1975-08-14

Similar Documents

Publication Publication Date Title
CA1031540A (fr) Courroie pour lunettes
CA1035095A (fr) Amelioration de la resistance de lentilles plastiques moulees
CA1010224A (en) Asepticizing of contact lenses
AU504329B2 (en) Opthalmic lens manufacture
CA1028787A (fr) Composes de moulage transparents
CA997562A (en) Moulding of glass objects
AU498831B2 (en) Centring of lenses
AU7819475A (en) Centring of lenses
CA1025259A (fr) Fabrication de moules
AU499337B2 (en) Penicillins & cephalosporins
AU507050B2 (en) Cephalosporins
AU498328B2 (en) Geodesic lens
CA1015543A (fr) Appareil et procede demoulage fluidique
AU503240B2 (en) Cephalosporins
AU506951B2 (en) Cephalosporins
AU4471372A (en) Lenses
AU503590B2 (en) Mould
AU499042B2 (en) Mould cooling
CA1031770A (fr) Penicilline
AU499084B2 (en) Mould cooling
AU506949B2 (en) Cephalosporins
AU1884176A (en) Mould cooling
CA1028881A (fr) Fabrication de lentilles corneennes
AU497840B2 (en) Cephalosporins
CA1027719A (fr) Moulage