TINTED SILICONE OPHTHALMIC DEVICES, PROCESSES AND POLYMERS USED IN THE PREPARATION OF SAME
First Claim
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1. A process comprising(a) applying a first colorant composition comprising at least one non-crosslinked binding co-polymer, at least one pigment, dye or mixture thereof and at least one printing solvent to a surface of an ophthalmic device mold;
- (b) adding up to an amount required to prepare an ophthalmic device, and over the non-crosslinked binding co-polymer of step (b), an uncured hydrogel formulation, wherein said hydrogel formulation, when cured, has a oxygen permeability of greater than about 50 barrer; and
(c) curing said hydrogel formulation to form a stable, tinted ophthalmic device.
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Abstract
Tinted ophthalmic devices, methods for their production, and non-crosslinked binding polymers used in their production are disclosed herein.
121 Citations
56 Claims
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1. A process comprising
(a) applying a first colorant composition comprising at least one non-crosslinked binding co-polymer, at least one pigment, dye or mixture thereof and at least one printing solvent to a surface of an ophthalmic device mold; -
(b) adding up to an amount required to prepare an ophthalmic device, and over the non-crosslinked binding co-polymer of step (b), an uncured hydrogel formulation, wherein said hydrogel formulation, when cured, has a oxygen permeability of greater than about 50 barrer; and (c) curing said hydrogel formulation to form a stable, tinted ophthalmic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 39, 53, 54, 55, 56)
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23. A process comprising:
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(a) applying a colorless coating composition comprising at least one non-crosslinked binding co-polymer and at least one printing solvent to at least one surface of an ophthalmic device mold, (b) applying a first colorant composition comprising at least one non-crosslinked binding co-polymer, at least one pigment, dye or mixture thereof and at least one printing solvent over the colorless coating composition applied in step (a); (c) adding, up to an amount required to prepare an ophthalmic device, and over the non-crosslinked binding co-polymer of step (b), an uncured hydrogel formulation, wherein said hydrogel formulation, when cured, has a oxygen permeability of greater than about 50 barrer; and (d) curing said hydrogel formulation to form a stable tinted ophthalmic device. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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- 40. A composition for use in the production of stable tinted hydrogel ophthalmic devices having an oxygen transmissibility of greater than about 50 comprising at least one printing solvent, and at least one pigment, dye or mixture thereof and at least one non-crosslinked binding co-polymer formed from reaction of components comprising at least one oxygen permeable enhancing component.
- 47. A stable, tinted hydrogel ophthalmic device comprising a body formed of a silicone hydrogel having an oxygen transmissibility of greater than about 50 barrer/mm comprising at least one non-crosslinked binding co-polymer entangled at or near at least one surface of said silicone hydrogel.
Specification