Silicone hydrogel contact lenses

US9140908B2 · kind B2 · utility

Assignee

• COOPERVISION INTERNATIONAL LIMITED · GB

Inventors

• Junhao Ge · Johns Creek, US
• Yuwen Liu · Dublin, US
• Charlie Chen · San Ramon, US
• Yuan Xu · Fremont, US
• Ye Hong · Pleasanton, US
• Hongjin Qiu · Evanston, US

Key dates

• Filing date: Feb 23, 2012
• Grant date: Sep 22, 2015
• Expiry date: Aug 24, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/043
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Silicone hydrogel contact lenses are formed from the reaction product of a polymerizable composition comprising at least one hydrophilic vinyl amide-containing monomer, at least one acrylate-containing siloxane monomer, and at least one hydrophilic vinyl ether-containing monomer. The contact lenses have ophthalmically-acceptable surface wettability and can be manufactured without the use of volatile organic solvents.