Patent · US Active

Silicone-containing prepolymers with dangling hydrophilic polymer chains

US8283429B2 · kind B2 · utility

30Cited by

33References

9Claims

0Family size

Assignee

Novartis AG · CH

Inventors

Jian Zhou · Chongqing, CN
Frank Chang · Cumming, US
Arturo Norberto Medina · Suwanee, US
Robert Scott · Alpharetta, US

Key dates

Filing date	Oct 28, 2011
Grant date	Oct 9, 2012
Priority date	—
Expiry date	Oct 28, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L51/085
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention provide a new class of silicone-containing prepolymers containing dangling hydrophilic polymer chains. This class of silicone-containing prepolymer is capable of being actinically crosslinked to form a silicone hydrogel material with a hydrophilic surface without post curing surface treatment. The present invention is also related to silicone hydrogel contact lenses made from this class of silicone-containing prepolymers and to methods for making the silicone hydrogel contact lenses.

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