Patent · US Active

Primary amine-containing silicone hydrogel contact lenses and related compositions and methods

US9429684B2 · kind B2 · utility

4Cited by

5References

22Claims

0Family size

Assignee

COOPERVISION INTERNATIONAL LIMITED · GB

Inventors

Guigui Wang · Livermore, US
Hong Xue · Sha Tin, CN

Key dates

Filing date	Apr 30, 2014
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Apr 30, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2011/0041
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Miscible polymerizable compositions comprising at least one primary amine-containing methacrylate monomer, or at least one primary amine-containing methacrylamide monomer, in addition to 20-80 wt. % siloxane monomer, 20-80 wt. % hydrophilic monomer, cross-linking agent, and polymerization initiator, are described. These polymerizable compositions can be used to form silicone hydrogel contact lenses, and in methods of manufacturing silicone hydrogel contact lenses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.