MX171337B - Composiciones polimericas utiles en lentes de contacto permeables al oxigeno - Google Patents

Composiciones polimericas utiles en lentes de contacto permeables al oxigeno

Info

Publication number
MX171337B
MX171337B MX022812A MX2281290A MX171337B MX 171337 B MX171337 B MX 171337B MX 022812 A MX022812 A MX 022812A MX 2281290 A MX2281290 A MX 2281290A MX 171337 B MX171337 B MX 171337B
Authority
MX
Mexico
Prior art keywords
acid
ester
derived
contact lens
lens material
Prior art date
Application number
MX022812A
Other languages
English (en)
Inventor
Richard C Baron
Scott D Rothenberger
Original Assignee
Polymer Technology Corp
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 Polymer Technology Corp filed Critical Polymer Technology Corp
Publication of MX171337B publication Critical patent/MX171337B/es

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La presente invención se refiere a un material para lentes de contacto, formado por la polimerización de radicales libres de un material orgánico para lentes de contacto y un ester de ácido carboxílico derivado de al menos un alcohol que está libre de hidrógenos beta en una cantidad predeterminada para proporcionar tanto un valor de dureza como la permeabilidad de oxígeno deseados al material para lentes de contacto, donde el ester tiene la siguiente fórmula: donde A es seleccionado del grupo que consiste en ácido mesacónico, ácido itacónico, ácido citracónico, malonato de metileno, ácido maleico, ácido fumárico, ácido etilen tricarboxílico, ácido metacrílico y ácido acrílico; n 1, 2 o 3; 1, R2 y R3 son iguales o diferentes y cada uno es grupos alquilo, cicloalquilo o arilo teniendo de 1 a 10 átomos de carbono o grupos eter teniendo de 2 a 10 átomos de carbono; donde, cuando A es derivado de un ácido dibásico o tribásico, el ester puede ser un ester completo, medio ester, ester parcial, o un ester mixto, el ester siendo derivado de al menos un alcohol que está libre de hidrógenos beta; el material mencionado teniendo una dureza Shore D de al menos 70 y un valor DK de al menos 10.
MX022812A 1989-10-17 1990-10-11 Composiciones polimericas utiles en lentes de contacto permeables al oxigeno MX171337B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/422,612 US5032658A (en) 1989-10-17 1989-10-17 Polymeric compositions useful in oxygen permeable contact lenses

Publications (1)

Publication Number Publication Date
MX171337B true MX171337B (es) 1993-10-08

Family

ID=23675632

Family Applications (1)

Application Number Title Priority Date Filing Date
MX022812A MX171337B (es) 1989-10-17 1990-10-11 Composiciones polimericas utiles en lentes de contacto permeables al oxigeno

Country Status (11)

Country Link
US (2) US5032658A (es)
EP (1) EP0424099B1 (es)
JP (1) JP3074320B2 (es)
KR (1) KR0185680B1 (es)
AU (1) AU647413B2 (es)
BR (1) BR9005206A (es)
CA (1) CA2027748C (es)
DE (1) DE69022809T2 (es)
ES (1) ES2077652T3 (es)
IE (1) IE71641B1 (es)
MX (1) MX171337B (es)

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Also Published As

Publication number Publication date
DE69022809D1 (de) 1995-11-09
JP3074320B2 (ja) 2000-08-07
JPH03207744A (ja) 1991-09-11
EP0424099A2 (en) 1991-04-24
EP0424099B1 (en) 1995-10-04
CA2027748C (en) 1998-01-06
AU6389690A (en) 1991-04-26
US5032658A (en) 1991-07-16
IE903703A1 (en) 1991-04-24
IE71641B1 (en) 1997-02-26
CA2027748A1 (en) 1991-04-18
EP0424099A3 (en) 1992-01-08
ES2077652T3 (es) 1995-12-01
KR910008430A (ko) 1991-05-31
DE69022809T2 (de) 1996-03-21
BR9005206A (pt) 1991-09-17
AU647413B2 (en) 1994-03-24
KR0185680B1 (ko) 1999-05-15
US5346978A (en) 1994-09-13

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