Soft contact lenses with a lubricious coating covalently-attached thereon

US10782450B2 · kind B2 · utility

Assignee

• ALCON INC. · CH

Inventors

• Harald Bothe · Niedernhausen, DE
• Bernhard Seiferling · Goldbach, DE
• Heike Arndt · Clingen, DE
• Thomas Wasse · Geesthacht, DE
• Stephan Wittmar · Unterentersbach, DE

Key dates

• Filing date: Oct 25, 2017
• Grant date: Sep 22, 2020
• Expiry date: Dec 27, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/15
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention is generally related to soft contact lenses which comprise a polyvinylalcohol-based hydrogel lens body and a durable lubricious coating thereon which are covalently attached to the polyvinylalcohol-based hydrogel lens body through 6-membered acetal rings and to a method for producing the same.