Back to results
US 6,806,337 B2Granted
Ophthalmic and otorhinolaryngological device materials
AssigneeAlcon Inc.
InventorsDouglas C. Schlueter, Albert R. LeBoeuf, Mutlu Karakelle
Life of this patent
Estimating the term…
Abstract
Disclosed are soft, high refractive index, acrylic device materials having improved strength. The materials contain cross-linked acrylate or methacrylate microspheres.
Claims13
A self-reinforced polymeric material comprising (a) a monofunctional acrylate or methacrylate monomer of formula (1), (b) a difunctional acrylate or methacrylate cross-linking monomer, and (c) a cross-linked acrylate or methacrylate microsphere of formula (2):
- wherein:
- A=H, CH3, CH2CH3, CH2OH;
- B=(CH2)m or [O(CH2)2]n;
- D=(CH2)w;
- m=2-6;
- n=1-10;
- Y is nothing, O, S, or NR, provided that if Y is O, S, or NR, then B is (CH2)m;
- R is H, CH3, CnH2n+1 (n=1-10), iso-OC3H7, C6H5, or CH2C6H5;
- w=0-6, provided that m+w≦8;
- and
- E is H, C1-C4 alkyl, C1-C4 alkoxy, C6H5, CH2C6H5, or F, Cl, Br.
8 more elements
An ophthalmic or otorhinolaryngological device selected from the group consisting of intraocular lenses;
- contact lenses;
- keratoprostheses;
- corneal rings or inlays;
- otological ventilation tubes;
- and nasal implants, wherein the device comprises a self-reinforced polymeric material comprising (a) a monofunctional acrylate or methacrylate monomer of formula (1), (b) a difunctional acrylate or methacrylate cross-linking monomer, and (c) a cross-linked acrylate or methacrylate microsphere of formula (2):
- wherein:
- A=H, CH3, CH2CH3, CH2OH;
- B=(CH2)m or [O(CH2)2]n;
- D=(CH2)w;
- m=2-6;
- n=1-10;
- Y is nothing, O, S, or NR, provided that if Y is O, S, or NR, then B is (CH2)m;
- R is H, CH3, CnH2n+1 (n=1-10), iso-OC3H7, C6H5, or CH2C6H5;
- w=0-6, provided that m+w≦8;
- and
- E is H, C1-C4 alkyl, C1-C4 alkoxy, C6H5, CH2C6H5, or F, Cl, Br.
13 more elements
Dependencies are inferred from the claim text.