Non-reactive, hydrophilic polymers having terminal siloxanes and methods for making and using the same

US9522980B2 · kind B2 · utility

Assignee

• Johnson & Johnson Vision Care, Inc. · US

Inventors

• Charles W. Scales · St. Augustine, US
• Kunisi Venkatasubban · Jacksonville, US
• Shivkumar Mahadevan · Orange Park, US
• Zohra Fadli · Jacksonville, US
• Carrie L. Davis · Portland, US
• Brent Matthew Healy · Jacksonville Beach, US

Key dates

• Filing date: May 4, 2011
• Grant date: Dec 20, 2016
• Expiry date: Jul 31, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation.