ZA859420B - Soft contact-optical objects - Google Patents

Soft contact-optical objects

Info

Publication number
ZA859420B
ZA859420B ZA859420A ZA859420A ZA859420B ZA 859420 B ZA859420 B ZA 859420B ZA 859420 A ZA859420 A ZA 859420A ZA 859420 A ZA859420 A ZA 859420A ZA 859420 B ZA859420 B ZA 859420B
Authority
ZA
South Africa
Prior art keywords
soft contact
optical objects
contact
lenses
optical
Prior art date
Application number
ZA859420A
Inventor
Frank Wingler
Otto-Christian Geyer
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of ZA859420B publication Critical patent/ZA859420B/en

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
    • G02B1/043—Contact 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
    • C08F226/00—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 a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Eyeglasses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Glass Compositions (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Optical Integrated Circuits (AREA)
  • Push-Button Switches (AREA)

Abstract

1. Contact-optical items, especially contact lenses and scleral lenses, composed of water-absorbing, crosslinked copolymers of olefinically unsaturated monomers, characterized in that the copolymer contains polymerized in 5 to 55% by weight of a N-vinylamide of the general formula see diagramm : EP0184729,P6,F2 in which R and R' represent, independently of one another, C1 -C4 -alkyl groups.
ZA859420A 1984-12-11 1985-12-10 Soft contact-optical objects ZA859420B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843445094 DE3445094A1 (en) 1984-12-11 1984-12-11 SOFT CONTACT OPTICAL ITEMS

Publications (1)

Publication Number Publication Date
ZA859420B true ZA859420B (en) 1986-08-27

Family

ID=6252445

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA859420A ZA859420B (en) 1984-12-11 1985-12-10 Soft contact-optical objects

Country Status (9)

Country Link
EP (1) EP0184729B1 (en)
CN (1) CN1005290B (en)
AT (1) ATE45429T1 (en)
AU (1) AU583554B2 (en)
BR (1) BR8506182A (en)
CA (1) CA1260193A (en)
DE (2) DE3445094A1 (en)
NZ (1) NZ214485A (en)
ZA (1) ZA859420B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823317A1 (en) * 1988-07-09 1990-02-08 Bayer Ag BLANKS FOR CONTACT OPTICAL ITEMS
DE4423303C2 (en) * 1994-07-02 2000-05-31 Woehlk Contact Linsen Gmbh Hydrophilic, crosslinked copolymers based on N-vinylformamide, process for their preparation and their use
US5760100B1 (en) 1994-09-06 2000-11-14 Ciba Vision Corp Extended wear ophthalmic lens
US7468398B2 (en) 1994-09-06 2008-12-23 Ciba Vision Corporation Extended wear ophthalmic lens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1394056A (en) * 1971-07-21 1975-05-14 Nat Res Dev Contact lenses
US4182802A (en) * 1977-12-27 1980-01-08 Samuel Loshaek Hydrophilic polymers and contact lenses of high water content
DE2829652A1 (en) * 1978-07-06 1980-01-17 Hoechst Ag METHOD FOR PRODUCING N-VINYLAMIDE POLYMERS
GB2087408B (en) * 1980-11-04 1984-05-23 Patel Pravin Gordhanbhai Da Co Cross-linked hydrophilic polymers
JPS59195621A (en) * 1983-04-22 1984-11-06 Toyo Contact Lens Co Ltd Soft contact lens
US4597700A (en) * 1985-01-11 1986-07-01 Mattel, Inc. Record engraving apparatus

Also Published As

Publication number Publication date
NZ214485A (en) 1988-10-28
EP0184729A2 (en) 1986-06-18
CN85108859A (en) 1986-06-10
ATE45429T1 (en) 1989-08-15
BR8506182A (en) 1986-08-26
EP0184729A3 (en) 1987-09-30
EP0184729B1 (en) 1989-08-09
AU5034485A (en) 1986-06-19
AU583554B2 (en) 1989-05-04
CN1005290B (en) 1989-09-27
DE3445094A1 (en) 1986-06-19
DE3572225D1 (en) 1989-09-14
CA1260193A (en) 1989-09-26

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