Polysiloxane composition and contact lens
First Claim
1. A fillerless, hydrolytically stable, biologically inert, transparent, contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a poly(organosiloxane) monomer α
- ,ω
terminally bonded through divalent hydrocarbon groups to polymerized, free radical polymerizably activated, unsaturated groups forming a polymer in a cross-linked network.
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Abstract
Monomeric polysiloxanes end-capped with activated unsaturated groups and polymers and copolymers thereof are disclosed herein for use as contact lenses with improved properties, such as, oxygen transportability, hydrolytic stability, biological inertness, transparency and improved strength without the use of fillers. The polymer composition comprises a poly(organosiloxane) α, ω terminally bonded through a divalent hydrocarbon group to a polymerized activated unsaturated group. Contact lenses made therefrom can be, as commonly referred to, "hard" or "soft". This hardness or softness is a function of the comonomer or the molecular weight of the monomers. Preferable the contact lenses are "soft".
The copolymer compositions of the instant invention comprise the polymerization product of the polysiloxane monomers and monomer or monomers containing an activated vinyl group. These polymers are employed to make optical products, e.g. contact lenses, intraocular implants, etc.
765 Citations
29 Claims
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1. A fillerless, hydrolytically stable, biologically inert, transparent, contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a poly(organosiloxane) monomer α
- ,ω
terminally bonded through divalent hydrocarbon groups to polymerized, free radical polymerizably activated, unsaturated groups forming a polymer in a cross-linked network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- ,ω
-
11. A fillerless, hydrolytically stable, biologically inert, transparent, contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a poly(organosiloxane) monomer α
- ,ω
terminally bonded through divalent hydrocarbon groups to polymerized, free radical polymerizably activated, unsaturated groups copolymerized with one or more monomers selected from the group consisting of a lower ester of acrylic and methacrylic acid, styryls, and N-vinyl pyrrolidinone forming a copolymer in a crosslinked network. - View Dependent Claims (12, 13)
- ,ω
-
14. A fillerless, flexible, hydrolytically stable, biologically inert, transparent, resilient, soft, polymeric contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a poly(organosiloxane) monomer α
- ,ω
terminally bonded through divalent hydrocarbon groups to polymerized, free radical polymerizably activated, unsaturated groups forming a polymer in a crosslinked network. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- ,ω
-
27. A fillerless, flexible, hydrolytically stable, biologically inert, transparent, resilient, soft, polymeric contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a poly(organosiloxane)monomer α
- ,ω
terminally bonded through divalent hydrocarbon groups to polymerized, free radical polymerizably activated, unsaturated groups copolymerized with one or more monomers selected from the group consisting of a lower ester of acrylic and methacrylic acid, styryls, and N-vinyl pyrrolidone forming a copolymer in a crosslinked network. - View Dependent Claims (28, 29)
- ,ω
Specification