Maleic anhydride-based polymer, lens with hydrophilic layer, processing agent for lens, and composition for lens
AssigneeVisco Vision Inc.
InventorsChing-Hsueh CHIANG, Hao-Lun CHIEN, Chi LAN
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Abstract
A maleic anhydride-based polymer, a lens with a hydrophilic layer, a processing agent for a lens, and a composition for a lens are provided. The maleic anhydride-based polymer includes one or more first repeating units represented by the following formula I, one or more second repeating units represented by the following formula II, and one or more third repeating units represented by the following formula III. In the formula II, Ra is H or a C1-C3 alkyl group, and Rb is H or a C1-C8alkyl group or the one or more first repeating units or the one or more second repeating units or the one or more third repeating units.
Claims16
A maleic anhydride-based polymer, comprising:
- one or more first repeating units represented by the following formula I;
- one or more second repeating units represented by the following formula II;
- and
- one or more third repeating units represented by the following formula III,
- wherein in the formula II, Ra is H or a C1-C3 alkyl group, and Rb is H or a C1-C3alkyl group or the one or more first repeating units or the one or more second repeating units or the one or more third repeating units.
A lens with a hydrophilic layer, comprising:
- a lens body;
- and
- the hydrophilic layer on at least a portion of an outer surface of the lens body, wherein the hydrophilic layer comprises a first polymer, the first polymer comprises:
- one or more first repeating units represented by the following formula I;
- one or more second repeating units represented by the following formula II;
- and
- one or more fourth repeating units represented by the following formula IV,
- wherein in the formula IV, R1 is H or a substituent containing at least one of a primary amine group, a secondary amine group and a tertiary amine group, R2 is a substituent containing at least one of a primary amine group, a secondary amine group and a tertiary amine group,
- in the formula II, Ra is H or a C1-C3 alkyl group, and Rb is H or a C1-C3alkyl group or the one or more first repeating units or the one or more second repeating units or the one or more fourth repeating units.
Dependencies are inferred from the claim text.