Silicone hydrogel lens with a crosslinked hydrophilic coating

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10563090
APP PUB NO 20190309188A1
SERIAL NO

16397255

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Abstract

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The invention is related to a cost-effective method for making a silicone hydrogel contact lens having a crosslinked hydrophilic coating thereon. A method of the invention involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally-crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, to and at a temperature from about 40° C. to about 140° C. for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave.

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Patent Owner(s)

  • NOVARTIS AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kolluru, Chandana Suwanee, US 23 272
Medina, Arturo Norberto Duluth, US 23 734
Nelson, Jared Buford, US 29 503
Pruitt, John Dallas Suwanee, US 65 1122
Qian, Xinming Johns Creek, US 33 592
Qiu, Yongxing Suwanee, US 91 2484
Samuel, Newton T Suwanee, US 30 338
Winterton, Lynn Cook Keller, US 79 4578
Wu, Daqing Suwanee, US 66 838

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