POLYMERS AND NANOGEL MATERIALS AND METHODS FOR MAKING AND USING THE SAME

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200049858A1
SERIAL NO

16659633

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Abstract

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Provided are compositions comprising a block copolymer of the following formula: [A]-B-[Q], wherein [A] is a polymer that has an affinity for a substrate; B is a linking group comprising an optionally-substituted, polyvalent linking group having a molecular weight of no more than 1000 g/mole; and [Q] comprises a semi-crosslinked, ungelled polymer derived from copolymerization of an ethylenically unsaturated monomer with a poly-functional ethylenically unsaturated monomer. Such block copolymers are cross-linked via the [Q] segment, but not macroscopically gelled. The [Q] segment is hydrophilic and has a degree of polymerization in the range of about 10 to about 10,000. The [A] segment is located on at least one terminal end of said block copolymer, comprises between about 1 and about 200 repeating units. The block copolymer is associated, via the linear substrate associative segment with a surface comprising at least one hydrophobic site, such as a silicone hydrogel. The polymers may be incorporated into a formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post-formation.

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Patent Owner(s)

Patent OwnerAddress
JOHNSON & JOHNSON VISION CARE7500 CENTURION PARKWAY JACKSONVILLE FL 32256 32256

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Healy, Brent Matthew Jacksonville Beach, US 14 139
McCabe, Kevin P St. Augustine, US 45 1761
Scales, Charles W St. Augustine, US 23 255

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