ECSP982385A - MOLDED OPHTHALMIC ITEM - Google Patents

MOLDED OPHTHALMIC ITEM

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Publication number
ECSP982385A
ECSP982385A ECSP982385A ECSP982385A EC SP982385 A ECSP982385 A EC SP982385A EC SP982385 A ECSP982385 A EC SP982385A EC SP982385 A ECSP982385 A EC SP982385A
Authority
EC
Ecuador
Prior art keywords
group
ethylenically unsaturated
molded ophthalmic
polyhydroxy compound
item
Prior art date
Application number
Other languages
Spanish (es)
Inventor
Bettidina Steinmann
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 filed Critical
Priority to ECSP982385 priority Critical patent/ECSP982385A/en
Publication of ECSP982385A publication Critical patent/ECSP982385A/en

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  • Polyurethanes Or Polyureas (AREA)

Abstract

La invención se refiere a artículos oftálmicos moldeados, especialmente lentes de contacto, que se pueden obtener mediante la reticulación de un prepolímero que es el producto de la copolimerización de: a) cuando menos un glicol de polialquileno; b) cuando menos un compuesto de polihidroxi seleccionado a partir del grupo que consiste en: i) un compuesto de polihidroxi alifático lineal o ramificado o un poliol de poliéster derivado del mismo, y ii) un poliol cicloalifático seleccionado a partir del grupo del grupo de polihidroxi-cicloalcano de 5 a 8 átomos de carbono y mono-o de-sacárido insustituído. c) cuando menos un di- ó poli-isocianato; d) cuando menos un monoisocianato etilénicamente insaturado o un haluro de ácido etilénicamente insaturado y opcionalmente otros monómeros copolimerizables, en donde la variable tienen los significados dados en las reivindicaciones, en ausencia o en la presencia de un comonómero ninílico adicional.The invention relates to molded ophthalmic articles, especially contact lenses, which can be obtained by crosslinking a prepolymer that is the product of the copolymerization of: a) at least one polyalkylene glycol; b) at least one polyhydroxy compound selected from the group consisting of: i) a linear or branched aliphatic polyhydroxy compound or a polyester polyol derived therefrom, and ii) a cycloaliphatic polyol selected from the group of the group of polyhydroxy-cycloalkane of 5 to 8 carbon atoms and unsubstituted mono-or de-saccharide. c) at least one di- or polyisocyanate; d) at least one ethylenically unsaturated monoisocyanate or one ethylenically unsaturated acid halide and optionally other copolymerizable monomers, wherein the variable has the meanings given in the claims, in the absence or in the presence of an additional ninyl comonomer.

ECSP982385 1998-01-28 1998-01-28 MOLDED OPHTHALMIC ITEM ECSP982385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ECSP982385 ECSP982385A (en) 1998-01-28 1998-01-28 MOLDED OPHTHALMIC ITEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ECSP982385 ECSP982385A (en) 1998-01-28 1998-01-28 MOLDED OPHTHALMIC ITEM

Publications (1)

Publication Number Publication Date
ECSP982385A true ECSP982385A (en) 1998-12-29

Family

ID=42043308

Family Applications (1)

Application Number Title Priority Date Filing Date
ECSP982385 ECSP982385A (en) 1998-01-28 1998-01-28 MOLDED OPHTHALMIC ITEM

Country Status (1)

Country Link
EC (1) ECSP982385A (en)

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