Interpenetrating polymer network hydrogel contact lenses
First Claim
1. A contact lens, comprising:
- an interpenetrating network hydrogel with a first hydrophilic network interpenetrated with a second hydrophilic network, wherein said first hydrophilic network is an entangled network of self-linked hydrophilic telechelic macromonomers covalently bonded to themselves or other of said macromonomers in said first network, wherein each of said hydrophilic telechelic macromonomers is a poly(ethylene) glycol (PEG) diacrylate or poly(ethylene) glycol (PEG) dimethacrylate based telechelic macromonomer, and wherein said second network is a network of crosslinked poly(acrylic) acid.
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Abstract
The present invention provides interpenetrating polymer network hydrogels that have high oxygen permeability, strength, water content, and resistance to protein adsorption. The hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. The telechelic macromonomer preferably has a molecular weight of between about 575 Da and about 20,000 Da. Mixtures of molecular weights may also be used. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylate or PEG-dimethacrylate and the hydrophilic monomer is an acrylic-based monomer. The material is designed to serve as a contact lens.
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Citations
31 Claims
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1. A contact lens, comprising:
- an interpenetrating network hydrogel with a first hydrophilic network interpenetrated with a second hydrophilic network, wherein said first hydrophilic network is an entangled network of self-linked hydrophilic telechelic macromonomers covalently bonded to themselves or other of said macromonomers in said first network, wherein each of said hydrophilic telechelic macromonomers is a poly(ethylene) glycol (PEG) diacrylate or poly(ethylene) glycol (PEG) dimethacrylate based telechelic macromonomer, and wherein said second network is a network of crosslinked poly(acrylic) acid.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 28, 29)
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15. An interpenetrating polymer network hydrogel, comprising:
- a first hydrophilic network interpenetrated with a second hydrophilic network, wherein said first hydrophilic network is an entangled network of self-linked hydrophilic telechelic macromonomers covalently bonded to themselves or other of said macromonomers in said first network, wherein each of said hydrophilic telechelic macromonomers is a poly(ethylene) glycol (PEG) diacrylate or poly(ethylene) glycol (PEG) dimethacrylate based telechelic macromonomer, and wherein said second network is a network of crosslinked poly(acrylic) acid.
- View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 30, 31)
Specification