| Entries |
| Document | Title | Date |
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| 20080221235 | POLYMERS FOR INTRAOCULAR LENSES - The present invention provides optic portions, intraocular lenses, and polymers for use in manufacturing optic portions and intraocular lenses. The optic portions include a polymer that comprises (a) one or more alkoxyalkyl methacrylate monomers and/or one or more alkoxyalkyl acrylate monomers that are incorporated in the polymer; (b) one or more hydroxyalkyl methacrylate monomers and/or one or more hydroxyalkyl acrylate monomers that are incorporated in the polymer; and (c) optionally, one or more crosslinking agents that are incorporated in the polymer. | 09-11-2008 |
| 20080275156 | WETTABLE HYDROGELS COMPRISING REACTIVE, HYDROPHILIC, POLYMERIC INTERNAL WETTING AGENTS - The present invention relates to wettable silicone hydrogels comprising the reaction product of at least one siloxane containing component and at least one reactive, hydrophilic polymeric internal wetting agent. The present invention further relates to silicone hydrogel contact lenses comprising at least one oxygen permeable component, and an amount of reactive, hydrophilic polymeric internal wetting agent sufficient to impart wettability to said device. | 11-06-2008 |
| 20090030108 | GEL COMPOSITION AND METHOD FOR PRODUCING SAME - A gel composition is provided, which in addition to being able to expect that various properties attributable to polyrotaxane will be retained, easily ensures stability, has superior shock absorbability and facilitates control of refractive index. The present invention provides a gel composition comprising a material having a network structure containing a polyrotaxane and a non-aqueous solvent, applications of the gel composition, and a process for preparing the gel composition. | 01-29-2009 |
| 20090043006 | High Refractive Index Ophthalmic Device Materials - High refractive index copolymers suitable for use in ophthalmic devices are disclosed. The copolymers comprise two or more aryl hydrophobic monomers and a non-polymerizable propylene oxide-ethylene oxide-propylene oxide block copolymer surfactant having a molecular weight of approximately 3600 and approximately 40% ethylene oxide units by weight. The copolymers have a reduced tendency to form glistenings when stored in water at physiological temperatures compared to similar copolymers lacking the non-polymerizable surfactant. | 02-12-2009 |
| 20090043007 | OPHTHALMIC LENS MATERIALS CONTAINING CHROMOPHORES THAT ABSORB BOTH UV AND SHORT WAVELENGTH VISIBLE LIGHT - Chromophores that absorb both UV and short wavelength visible light are disclosed. The chromophores are particularly suitable for use in intraocular lens materials. | 02-12-2009 |
| 20090054547 | METHOD FOR THE PREPARATION OF A TRANSPARENT MOULDING BASED ON A BLEND OF THERMOPLASTIC POLYMER AND THERMOSETTING POLYMER - The present invention relates to a method of preparing a transparent moulding comprising a blend of a first thermoset polymeric material forming the matrix of said moulding, and of a second polymeric material dispersed within said first material, said method comprising at least the following stages:
| 02-26-2009 |
| 20090088493 | OPHTHALMIC AND OTORHINOLARYNGOLOGICAL DEVICE MATERIALS CONTAINING AN ALKYLPHENOL ETHOXYLATE - Disclosed are soft, high refractive index, acrylic device materials. The materials contain a functionalized alkylphenol ethoxylate to reduce glistenings. | 04-02-2009 |
| 20090124721 | METHOD FOR COATING AN OPHTHALMIC LENS WITHIN AN INJECTION MOLDING MACHINE - A method for in-mold coating of an injection molded thermoplastic lens that resides in an injection molding machine oriented to a horizontal parting line. An optical lens is initially formed by injecting molten thermoplastic resin into an edge-gated lens-forming cavity held closed under a primary clamp force. The mold is opened at a time when the lens is rigid enough to retain its shape. An unpressurized full metered charge of coating is applied onto the center of the lens. The coating is co-molded by ramping up the clamp force from zero to a secondary clamp force less than the primary clamp force to compress the coating into a uniformly thick, fringe-free layer. | 05-14-2009 |
| 20090143498 | PROCESS FOR PREPARING DISPERSED INGEDIENT HAVING METAL-OXYGEN BONDS - A dispersed ingredient having metal-oxygen bonds which is obtained by hydrolyzing a metal alkoxide in an organic solvent in the absence of an acid, a base, and/or a dispersion stabilizer, either with 0.5 to less than 1 mol of water per mol of the metal alkoxide or at −20° C. or lower with 1.0 to less than 2.0 mol of water per mol of the metal alkoxide. In the organic solvent, the dispersed ingredient is stably dispersed without aggregating. Use of the dispersed ingredient enables a thin metal oxide film and a homogeneous organic/inorganic composite to be produced at a temperature as low as 200° C. or below. | 06-04-2009 |
| 20090176909 | HYDROGEL WITH HIGH WATER CONTENT AND STABILITY - A polymer comprising hydrophilic and hydrophobic properties is provided. The polymer can be formed into a hydrogel capable of being used as a contact lens. The lens can exhibit high water content such as for example more than 70 wt. % for biocompatibility and structural stability for handling. The hydrophilic portion can be 2,3-dihydroxypropyl methacrylate (GMA) and the hydrophobic portion can be 2-methoxyethyl methacrylate (MOEMA). Additionally, the lens can also include N,N-dimethylacrylamide (NN-DMA). Lens can be prepared and formed by molding including a cast molding process or a half cast molding process. | 07-09-2009 |
| 20090182067 | Polymerizable Contact Lens Formulations and Contact Lenses Obtained Therefrom - Contact lenses, such as hydrogel contact lenses, are described. The present contact lenses include a lens body that is the reaction product of a polymerizable composition. The polymerizable composition includes one or more monomers and a crosslinker that crosslinks the one or more monomers during polymerization. The polymerization of the one or more monomers occurs in the presence of a hydrophilic polymer that is present in the polymerizable composition, which comprises a polymer of 2-methacryloyloxyethyl phosphorylcholine. The present lenses are capable of releasing the hydrophilic polymer from the contact lens for prolonged periods of time and also have a reduced surface friction compared to similar lenses without the hydrophilic polymer. The present invention also relates to packaging systems for use with such lenses and methods of producing such lenses. | 07-16-2009 |
| 20100041787 | ULTRAVIOLET LIGHT ABSORBING OPTICAL ELEMENTS AND COMPOSITIONS AND METHODS FOR MANUFACTURE - The present invention relates to a UV absorbing optical element comprising a polymer optical element substrate, and a UV light absorbing amount of a tris-aryltriazine-based UV absorber incorporated in said substrate. The present invention also provides a method for forming a UV absorbing optical element. | 02-18-2010 |
| 20100160482 | Ophthalmologic Composition And Ophthalmologic Lens - The invention relates to an ophthalmologic composition including a dye of the general formula I | 06-24-2010 |
| 20100324165 | Ophthalmological Composition And Use Thereof - The subject matter of the present invention is an ophthalmologic composition having an UV absorber and a violet absorber, wherein a high transmission is achieved in the blue light spectrum, and an eye implant, in particular an intraocular lens, which is produced with this ophthalmologic composition. | 12-23-2010 |
| 20110046258 | OPHTHALMIC AND OTORHINOLARYNGOLOGICAL DEVICE MATERIALS - Disclosed are soft, high refractive index, acrylic device materials. The materials contain a copolymeric additive for glistening resistance. | 02-24-2011 |
| 20110144228 | HYDROGEL NANOCOMPOSITES FOR INTRAOCULAR LENS APPLICATONS - The present invention relates to reversible hydrogel systems. Particularly, the hydrogel of the present invention is made up of copolymers that can be a hydrogel when in an oxidized state and can be a solution when in a reduced state. A solution of the copolymer can be oxidized to form a hydrogel; and the hydrogel can be reduced to form a solution of the copolymer. Reversible nanogels can also be formed from a dilute solution of the copolymers. The hydrogel is formed with nanoparticles embedded therein to form a nanocomposite whose refractive index and modulus can be controlled by varying the amounts of nanoparticles and the polymer concentration of the hydrogel, respectively. | 06-16-2011 |
| 20110152399 | SURFACE TREATMENT OF BIOMEDICAL DEVICES - A surface modified biomedical device is provided comprising a biomedical device having a coating on at least a portion thereof, the coating comprising a polymer or copolymer having one or more repeating units of the formula: | 06-23-2011 |
| 20110166247 | Interpenetrating polymer network hydrogel contact lenses - 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-diacrylamide and the hydrophilic monomer is an acrylic-based monomer. The material is designed to serve as a contact lens. | 07-07-2011 |
| 20110230588 | METHOD FOR MAKING CONTACT LENSES - The instant invention pertains to a method and a fluid composition for producing contact lenses with relatively high edge quality and with relatively high precision and fidelity in reproducing a desired lens design. The method of the invention involves: a mold which has a first mold half with a first molding surface and a second mold half with a second molding surface, wherein the first and second mold halves are configured to receive each other such that the cavity is formed between the first and second molding surfaces which define the opposite two surfaces of a contact lens to be produced; a spatial limitation of actinic radiation to define the edge of the contact lens to be produced; and addition of a radical scavenger in a fluid composition comprising a lens-forming material to reduce substantially the crosslinking/polymerizing, caused by diffused, scattered and/or reflected incident actinic radiation, of the fluid composition outside of and around the spatial limitation of actinic radiation. | 09-22-2011 |
| 20110251301 | POLYMERIZABLE LIQUID COMPOSITION AND PROCESS FOR THE PRODUCTION OF ORGANIC GLASS STARTING FROM POLYMERIZABLE LIQUID COMPOSITIONS OF THE POLYURETHANE TYPE - Polymerizable liquid compositions of the polyurethane type, consisting of two components (A) and (B), wherein component (A) contains at least one cyclo-aliphatic diisocyanate monomer or a mixture of one cyclo-aliphatic diisocyanate monomer and a pre-polymer obtained by reaction, in the presence of an acid phosphate ester catalyst, between said cyclo-aliphatic diisocyanate monomer and one or more polyols having two or more hydroxy 1 groups per molecule and a molecular weight ranging from 50 to 2,000 g/mole; the second component (B) contains one or more polyols having a molecular weight ranging from 50 to 2,000 g/mole and a functionality between 2 and 5; in the absence of polyalkoxylated tertiary diamines and organometallic catalysts, said components (A) and (B) being present in a weight ratio which varies from 1:1 to 2:1 and the process for the production of organic glass starting from polymerizable liquid compositions of the polyurethane type. | 10-13-2011 |
| 20110281968 | Polymerizable Contact Lens Formulations And Contact Lenses Obtained Therefrom - Contact lenses, such as hydrogel contact lenses, are described. The present contact lenses include a lens body that is the reaction product of a polymerizable composition. The polymerizable composition includes one or more monomers and a crosslinker that crosslinks the one or more monomers during polymerization. The polymerization of the one or more monomers occurs in the presence of a hydrophilic polymer that is present in the polymerizable composition, which comprises a polymer of 2-methacryloyloxyethyl phosphorylcholine. The present lenses are capable of releasing the hydrophilic polymer from the contact lens for prolonged periods of time and also have a reduced surface friction compared to similar lenses without the hydrophilic polymer. The present invention also relates to packaging systems for use with such lenses and methods of producing such lenses. | 11-17-2011 |
| 20120157565 | Polymerizable Surfactants and Their Use as Device Forming Comonomers - This invention describes the use of polymerizable surfactants as comonomers in forming ophthalmic devices such as contact lenses, intraocular lenses, corneal implants, etc. | 06-21-2012 |
| 20120172486 | Wettable Hydrogel Materials For Use In Ophthalmic Applications And Methods - A contact lens is provided that has extended and rechargeable wettability. The contact lens includes a lens body that is a reaction product of a polymerizable composition. A first polyhydric alcohol having a 1,2 diol or 1,3 diol moiety is present on a lens surface of the lens body. A contact lens package including the contact lens, and methods of producing and using the contact lens, are also provided. | 07-05-2012 |
| 20120190767 | HYDROGEL WITH HIGH WATER CONTACT AND STABILITY - A polymer comprising hydrophilic and hydrophobic properties is provided. The polymer can be formed into a hydrogel capable of being used as a contact lens. The lens can exhibit high water content such as for example more than 70 wt. % for biocompatibility and structural stability for handling. The hydrophilic portion can be 2,3-dihydroxypropyl methacrylate (GMA) and the hydrophobic portion can be 2-methoxyethyl methacrylate (MOEMA). Additionally, the lens can also include N,N-dimethylacrylamide (NN-DMA). Lens can be prepared and formed by molding including a cast molding process or a half cast molding process. | 07-26-2012 |
| 20120238661 | Processes for the Synthesis of Compounds from Cyclic Carbonates - The invention provides compounds containing the ring-opening products of ethylenically unsaturated cyclic carbonates for use in preparing hydrogel polymers, as well as methods for their preparation. A preferred method of the invention includes the reaction of nucleophilic compounds containing Si, F, N or O atoms, or combinations thereof, or latent moieties in the form of unsaturated or hydroxylated functional groups, with ethylenically unsaturated glycerol carbonate derivatives. The compounds and hydrogel polymers are useful for the preparation of contact lenses. | 09-20-2012 |
| 20130030079 | HIGH REFRACTIVE INDEX OPHTHALMIC DEVICE MATERIALS WITH REDUCED TACK - High refractive index copolymers with reduced tack are disclosed. The copolymers, which are particularly suitable for use as ophthalmic device materials, comprise a benzhydryl methacrylate or benzydryl methacrylate derivative monomer. | 01-31-2013 |
| 20130053470 | BIOCOMPATIBLE, BIOMIMETIC AMPHOLYTE MATERIALS - New ampholyte biomaterial compounds containing ampholyte moieties are synthesized and integrated into polymeric assemblies to provide hydrophilic polymers exhibiting improved biocompatibility, haemocompatibility, hydrophilicity non-thrombogenicity, anti-bacterial ability, and mechanical strength, as well as suitability as a drug delivery platform. | 02-28-2013 |
| 20130109778 | PREPARATION OF ANTIMICROBIAL CONTACT LENSES WITH REDUCED HAZE USING SWELLING AGENTS | 05-02-2013 |
| 20130131214 | POLYMERIC ARTICLES COMPRISING OXYGEN PERMEABILITY ENHANCING PARTICLES - The present invention relates to a composition comprising a hydrogel polymer having less than 100% haze, and distributed therein an oxygen enhancing effective amount of oxygen permeable particles having an oxygen permeability of at least about 100 barrer, average particle size less than about 5000 nm. | 05-23-2013 |
| 20130274370 | POLYMER FOR CONTACT LENSES - The present invention relates to a polyurethane polymer composition prepared by reacting a mixture comprising: a} at least one polyethylene glycol, and either b) at least one poly-isocyanate, having a functionality greater than 2 or c) at least one di-isocyanate and at least one polyol or at least one macropolyol having a functionality greater than 2, wherein the polyol or macropolyol is present at an amount of 0.1 to 9 wt % of the mixture. The invention also relates to a process for preparing a polyurethane xero-gel in the form of a moulded article, said process comprising the steps of: i.) preparing said mixture; ii. ) dispensing the reaction mixture formed in step i) into a mould; iii. ) allowing the reaction mixture to react and cure; iv. ) removing the moulded article from the mould; and v. ) hydrating the moulded article. | 10-17-2013 |
| 20140058008 | Ocular Lens - A method of making an ocular lens device (and resulting lens device) from a polyolefin copolymer material having a crosslinking component, wherein the material is processed to remove unwanted reaction byproducts that can contribute to reduced transparency of the polyolefin copolymer material in the ocular environment of the eye. | 02-27-2014 |
| 20140309328 | POLYMER FOR CONTACT LENSES - The present invention relates to polyurethane polymer compositions prepared by reacting a mixture comprising: a) at least one poly(ethylene glycol), b) at least one polyoxyalkylene diol (typically PPG or a copolymer of ethylene oxide and propylene oxide), c) at least one di- or poly-isocyanate, d) at least one polyol or macropolyol having a functionality greater than 2, or a mixture of such polyols or macropolyols having a functionality greater than 2, e) optionally an additional compound comprising at least one hydroxyl group and at least one primary or secondary amine group. The present invention also relates to an article comprising such a polymer, in particular a medical device such as a contact lens. A process for preparing a polyurethane hydrogel is also provided. | 10-16-2014 |
| 20140336303 | Optical Element for Correcting Color Blindness - Described herein are devices, compositions, and methods for improving color discernment. | 11-13-2014 |
| 20150038612 | POLYMERS AND METHODS FOR OPHTHALMIC APPLICATIONS - Novel methods and materials particularly useful for ophthalmic applications and to methods for making and using the same are disclosed herein. More particularly, relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and implanting IOLs made therefrom are disclosed. | 02-05-2015 |
| 20150087743 | FLUID FOR ACCOMMODATING INTRAOCULAR LENSES - Fluids incorporated into intraocular lenses and their methods of use. In some embodiments the fluids are silicone oils, and in some embodiments they are used in accommodating intraocular lenses. | 03-26-2015 |
| 20150099822 | SILICONE HYDROGEL LENS WITH A CROSSLINKED HYDROPHILIC COATING - The invention is related to a cost-effective method for making a silicone hydrogel contact lens having a crosslinked hydrophilic coating thereon. A method of the invention involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally-crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, to and at a temperature from about 40° C. to about 140° C. for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave. | 04-09-2015 |
| 20160170092 | HYDROPHOBIC ACRYLATE-ACRYLAMIDE COPOLYMERS FOR OPHTHALMIC DEVICES | 06-16-2016 |
| 20160170093 | LOW-WATER CONTENT ACRYLATE-ACRYLAMIDE COPOLYMERS FOR OPHTHALMIC DEVICES | 06-16-2016 |
| 20220137433 | METHOD FOR MAKING PHOTOCHROMIC CONTACT LENSES - Described herein is a method for producing photochromic contact lenses, in particular, photochromic silicone hydrogel contact lenses. The method comprises a step of cast molding of a lens-forming composition including an iniferter to form an unprocessed contact lens having iniferter moieties covalently incorporated into its polymer matrix and a step of iniferter-induced graft-polymerization of a photochromic vinylic monomer to the polymer matrix only in its central region which is circular and concentric with the central axis of the unprocessed contact lens. The obtained photochromic contact lens has a central pupillary region that only can undergo a reversible color change upon exposure to UV/HEVL-radiation. | 05-05-2022 |
