Forming clear, wettable silicone hydrogel articles without surface treatments
First Claim
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1. A composition comprising:
- at least one silicone containing component,at least one hydrophilic component,at least one high molecular weight hydrophilic polymer, andat least one diluent having an alpha value of between about 0.05 and about 1 and a Hansen solubility parameter, δ
p, of less than about 10, wherein the composition forms a clear blend at a selected reaction temperature, wherein the reaction temperature is up to about 75C., and wherein the composition further comprises at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the blend absent the diluent.
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Abstract
The present invention is a composition, which may be used to form contact lenses, comprising at least one silicone containing component, at least one hydrophilic component, at least one high molecular weight hydrophilic polymer and at least one diluent with an alpha value of about 0.5 to about 1 and a Hansen solubility parameter of less than about 10.
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Citations
41 Claims
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1. A composition comprising:
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at least one silicone containing component, at least one hydrophilic component, at least one high molecular weight hydrophilic polymer, and at least one diluent having an alpha value of between about 0.05 and about 1 and a Hansen solubility parameter, δ
p, of less than about 10, wherein the composition forms a clear blend at a selected reaction temperature, wherein the reaction temperature is up to about 75C., and wherein the composition further comprises at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the blend absent the diluent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A composition comprising
at least one silicone containing component, at least one hydroxyl containing component, at least one high molecular weight hydrophilic polymer, and at least one diluent having an alpha value of between about 0.05 and about 1 and a Hansen solubility parameter, δ - p, of less than about 10, wherein the composition forms a clear blend at a selected reaction temperature, wherein the reaction temperature is up to about 75°
C., wherein the composition further comprises at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the blend absent the diluent. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
- p, of less than about 10, wherein the composition forms a clear blend at a selected reaction temperature, wherein the reaction temperature is up to about 75°
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34. A composition comprising
about 1 part by weight of at least one silicone containing component, about 1.6 parts by weight of at least one hydrophilic component, about 0.3 parts by weight of at least one high molecular weight hydrophilic polymer and about 2 parts by weight diluent, and the composition is a compatible mixture at about room temperature.
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36. An ophthalmic device comprising a cured compound, wherein the compound in precure form comprises
at least one silicone containing component, at least one hydrophilic component, at least one high molecular weight hydrophilic polymer, and at least one diluent having an alpha value of between about 0.05 and about 1 and a Hansen solubility parameter, δ - p, of less than about 10, wherein the procure form further comprises at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the blend absent the diluent.
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37. An ophthalmic device comprising a cured compound, wherein the compound in precure form comprises
at least one silicone containing component, at least one hydroxyl containing component, at least high molecular weight hydrophilic polymer, and at least one diluent having an alpha value of between about 0.05 and about 1 and a Hansen solubility parameter, δ - p, of less than about 10, wherein the procure form further comprises at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the blend absent the diluent.
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38. A method of making a clear and wettable ophthalmic device comprising
Forming a reaction mixture comprising at least one silicone containing component, at least one hydrophilic component, at least one high molecular weight hydrophilic polymer, at least one diluent having an alpha value of between about 0.05 and about 1 and a Hansen solubility parameter, δ - p, of less than about 10 and at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the reaction mixture absent the diluent,
Placing the reaction mixture in a mold, Curing the reaction mixture to form the ophthalmic device, Releasing the ophthalmic device from the mold, and Removing substantially all of the diluent from the ophthalmic device.
- p, of less than about 10 and at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the reaction mixture absent the diluent,
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39. A method of making a clear and wettable ophthalmic device comprising
Forming a reaction mixture comprising at least one silicone containing component, at least one hydroxyl containing component, at least one high molecular weight hydrophilic polymer, at least one diluent having an alpha value of between about 0.05 and about 1 and a Hansen solubility parameter, δ - p, of less than about 10, and at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the reaction mixture absent the diluent,
Placing the reaction mixture in a mold, Curing the reaction mixture to form the ophthalmic device, and Releasing the ophthalmic device from the mold.
- p, of less than about 10, and at least one silicone containing compatibilizing component in an amount insufficient to compatibilize the reaction mixture absent the diluent,
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40. A composition comprising
monomethacryloxypropyl terminated mono-n-butyl terminated polydimethylsiloxane; -
N,N-dimethylacrylamide; 2-hydroxyethyl methacrylate; tetraethyleneglycol dimethacrylate; poly(N-vinyl pyrrolidone) (K value
90);bis(2,4,6-trimethylbenzoyl)-phenyl phosphine oxide; and 3,7-dimethyl-3-octanol.
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41. A composition comprising:
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monomethacryloxypropyl terminated mono-n-butyl terminated polydimethylsiloxane; N,N-dimethylacrylamide; 2-hydroxyethyl methacrylate; ethylene glycol dimethacrylate; 2-(2′
-hydroxy-5-methacrylyloxyethylphenyl)-2H-benzotriazole;poly(N-vinyl pyrrolidone) (K value
90);bis(2,4,6-trimethylbenzoyl)-phenyl phosphine oxide; and t-amyl alcohol.
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Specification