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547 results about "Silicone hydrogel" patented technology
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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.
Owner:JOHNSON & JOHNSON VISION CARE INC
Silicone hydrogel contact lens
Ophthalmically compatible contact lenses include lens bodies configured for placement on a cornea of an animal or human eye. The lens bodies are made of a hydrophilic silicon-containing polymeric material. The lens bodies have oxygen permeabilities, water content, surface wettabilities, flexibilities, and / or designs to be worn by a lens wearer even during sleep. The present lenses can be worn on a daily basis, including overnight, or can be worn for several days, such as about thirty days, without requiring removal or cleaning.
Owner:COOPERVISION INT LTD
Soft contact lenses
InactiveUS6943203B2Reduces Young 's modulusModulus is reducedOptical partsOptical elementsMonomerSilicone
A soft contact lens containing a silicone-hydrogel made by curing a reaction mixture containing a silicone-containing monomer.
Owner:JOHNSON & JOHNSON VISION CARE INC
Actinically curable silicone hydrogel copolymers and uses thereof
The present invention provides inks and methods for making colored silicone hydrogel contact lenses. The ink of the invention comprises an actinically-curable binder copolymer comprising fluorine-containing segments and is characterized by having capability to be cured actinically or thermally to form a colored film on a molding surface of a mold or a silicone hydrogel contact lens and by having an increased durability in a solvated state in a silicone-hydrogel lens formulation in relation to a control colored film obtained from a control ink including an actinically-curable fluorine-free binder copolymer. The invention also provides methods for making colored silicone hydrogel contact lenses based on print-on-mold processes for producing colored contact lenses.
Owner:ALCON INC
Prepolymers with dangling polysiloxane-containing polymer chains
The invention provide a new class of silicone-containing prepolymers containing dangling polysiloxane-containing polymer chains. This class of silicone-containing prepolymer is capable of being actinically crosslinked to form a silicone hydrogel material with a relatively high oxygen permeability, a reduced elastic modulus, and a relatively high ion permeability. The present invention is also related to silicone hydrogel contact lenses made from this class of silicone-containing prepolymers and to methods for making the silicone hydrogel contact lenses.
Owner:ALCON INC
Silicone hydrogel contact lens
ActiveUS20070066706A1Less discomfortHigh dielectric constantPharmaceutical delivery mechanismOptical partsDaily wearPolymer chemistry
Silicone hydrogel contact lenses are provided which have reduced modulus and contact angle properties, and which have acceptable wettabilities for use in daily wear and extended or continuous wear applications.
Owner:COOPERVISION INT LTD
Silicone-containing prepolymers with dangling hydrophilic polymer chains
ActiveUS20080234457A1Reduce molecular weightHigh molecular weightOptical articlesProsthesisPolymer scienceHydrophilic polymers
The invention provide a new class of silicone-containing prepolymers containing dangling hydrophilic polymer chains. This class of silicone-containing prepolymer is capable of being actinically crosslinked to form a silicone hydrogel material with a hydrophilic surface without post curing surface treatment. The present invention is also related to silicone hydrogel contact lenses made from this class of silicone-containing prepolymers and to methods for making the silicone hydrogel contact lenses.
Owner:ALCON INC
Silicone hydrogel contact lenses
The invention provides a cost-effective method for making a silicone hydrogel contact lens which has a good wettable coating with a good durability.
Owner:ALCON INC
Ionic silicone hydrogels having improved hydrolytic stability
ActiveUS20100249356A1Improve thermal stabilityDesirable protein uptakeOptical partsOptical elementsPolymer scienceProtein uptake
The present invention relates to ionic silicone hydrogel polymers displaying improved thermal stability. More specifically, the present invention relates to a polymer formed from reactive components comprising at least one silicone component and at least one ionic component comprising at least one anionic group. The polymers of the present invention display good thermal stability and desirable protein uptake.
Owner:JOHNSON & JOHNSON VISION CARE INC
Contact lenses
InactiveUS6849671B2Superior arcuateSuperior arcuate stainingCoatingsOptical partsLesionSilicone hydrogel
The invention provides silicone hydrogel contact lenses that exhibit reduced back surface debris and reduced incidence of superior epithelial arcurate lesions.
Owner:JOHNSON & JOHNSON VISION CARE INC
Method for making silicone hydrogel contact lenses
The invention provide a method for making silicone hydrogel based on the Lightstream Technology from a monomer mixture with a curing time of less than about 100 seconds. The present invention is also related to silicone hydrogel contact lenses made according to methods of the invention.
Owner:ALCON INC
High water content silicone hydrogels
ActiveUS7934830B2Increase moisture contentSuitable oxygen permeability propertyLayered productsThin material handlingHydration reactionHydrophilic monomer
Owner:BAUSCH & LOMB INC
Silicone hydrogel lens with a covalently attached coating
ActiveUS20110134387A1Good coating durabilityIncreased durabilityOptical articlesEye diagnosticsHydrophilic coatingPolymer chemistry
The invention provides a cost-effective method for making a silicone hydrogel contact lens having a hydrophilic coating thereon that is covalently attached to the lens and has a good hydrophilicity, intactness and durability. The invention also provides a silicone hydrogel contact lenses having a hydrophilic coating consisting of a prime coating covalently attached to the contact lens and a top coating covalently attached to the prime coating.
Owner:ALCON INC
Medical devices having homogeneous charge density and methods for making same
Owner:JOHNSON & JOHNSON VISION CARE INC
Ionic silicone hydrogels
Owner:JOHNSON & JOHNSON VISION CARE INC
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.
Owner:JOHNSON & JOHNSON VISION CARE INC
Silicone hydrogels comprising desirable water content and oxygen permeability
The present invention relates to a process comprising the steps of reacting a reactive mixture comprising at least one silicone-containing component, at least one hydrophilic component, and at least one diluent to form an ophthalmic device having an advancing contact angle of less than about 80°; and contacting the ophthalmic device with an aqueous extraction solution at an elevated extraction temperature, wherein said at least one diluent has a boiling point at least about 10° higher than said extraction temperature.
Owner:JOHNSON & JOHNSON VISION CARE INC
Silicone hydrogels comprising n-vinyl amides and hydroxyalkyl (meth)acrylates or (meth)acrylamides
The present invention relates to a process comprising the steps of reacting a reactive mixture comprising at least one silicone-containing component, at least one hydrophilic component, and at least one diluent to form an ophthalmic device having an advancing contact angle of less than about 80°; and contacting the ophthalmic device with an aqueous extraction solution at an elevated extraction temperature, wherein said at least one diluent has a boiling point at least about 10° higher than said extraction temperature.
Owner:JOHNSON & JOHNSON VISION CARE INC
Silicone hydrogel lenses with water-rich surfaces
ActiveUS20120026458A1Satisfies needMeet actual needsSpectales/gogglesOptical articlesPolymer scienceHigh water content
The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.
Owner:ALCON INC
Forming clear, wettable silicone hydrogel articles without surface treatments
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.
Owner:JOHNSON & JOHNSON VISION CARE INC
Contact lens package
ActiveUS7426993B2Reduced tendency to stick togetherReduce effortOther accessoriesContainer/bottle contructionLiquid mediumEngineering
Owner:COOPERVISION INT LTD
Actinically-crosslinkable siloxane-containing copolymers
The invention provide a class of actinically-crosslinkable silicone-containing prepolymers which comprise dangling polysiloxane chains each having a terminal ethylenically-unsaturated group and are obtained in a one-step of RAFT polymerization of a reactive mixture comprising a polysiloxane crosslinker, a hydrophilic vinylic monomer, a RAFT agent, and a free-radical initiator. The present invention is also related to silicone hydrogel contact lenses made from a prepolymer of the invention and methods for making the contact lenses in a cost-effective way and with high consistency and high fidelity to the original lens design.
Owner:ALCON INC
Ionic silicone hydrogels having improved hydrolytic stability
ActiveUS8470906B2Improve thermal stabilityDesirable protein uptakeOptical partsOptical elementsPolymer scienceProtein uptake
The present invention relates to ionic silicone hydrogel polymers displaying improved thermal stability. More specifically, the present invention relates to a polymer formed from reactive components comprising at least one silicone component and at least one ionic component comprising at least one anionic group. The polymers of the present invention display good thermal stability and desirable protein uptake.
Owner:JOHNSON & JOHNSON VISION CARE INC
Silicone hydrogel lenses with water-rich surfaces
ActiveUS8480227B2Meet actual needsPretreated surfacesAlcoholic beverage preparationHigh water contentHigh oxygen
The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.
Owner:ALCON INC
Amphiphilic siloxane-containing (meth)acrylamides and uses thereof
The invention provides an amphiphilic siloxane-containing (meth)acrylamide which comprises one sole (meth)acrylamido group, one sole tris(trimethylsiloxy)silyl group, and one polyethylene glycol segment which is either dangling polymer chain or a hydrophilic linker between the (meth)acrylamido group and the tris(trimethylsiloxy)silyl group. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from an amphiphilic siloxane-containing (meth)acrylamido group, one tris(trimethylsiloxy)silyl group of the invention. In addition, the invention provides a method for making silicone hydrogel contact lenses using a water-based lens-forming formulation comprising an amphiphilic siloxane-containing (meth)acrylamido group, one tris(trimethylsiloxy)silyl group of the invention and / or an actinically-crosslinkable silicone-containing prepolymer of the invention.
Owner:ALCON INC
Curable colored inks for making colored silicone hydrogel lenses
The present invention provides an actinically or thermally curable ink for making colored silicone hydrogel contact lenses. The ink of the invention comprises at least one colorant, a solvent and a binder polymer including ethylenically unsaturated groups and segments derived from at least one silicone-containing vinylic monomer or macromer. The ink of the invention is characterized by having capability to be cured actinically or thermally to form a colored coat on a silicone hydrogel contact lens, wherein the colored coat has good adhesion to the silicone hydrogel contact lens without being covalently attached to the lens material of the contact lens. The invention also provides methods for making colored silicone hydrogel contact lenses.
Owner:ALCON INC
Amphiphilic siloxane-containing vinylic monomers and uses thereof
The invention provides an amphiphilic siloxane-containing vinylic monomer which comprises one sole ethylenically unsaturated group and a siloxane-containing group covalently linked to the ethylenically-unsaturated group through a hydrophilic linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from an amphiphilic siloxane-containing vinylic monomer of the invention. In addition, the invention provides a method for making silicone hydrogel contact lenses using a water-based lens-forming formulation comprising an amphiphilic siloxane-containing vinylic monomer of the invention and / or an actinically-crosslinkable silicone-containing prepolymer of the invention.
Owner:ALCON INC
Silicone hydrogel, lens for eye and contact lens
ActiveUS20110230589A1Increase contentImprove balanceGroup 4/14 element organic compoundsCoatingsPolymer scienceMeth-
The present invention provides transparent silicone hydrogels with high acrylamide monomer content and an excellent balance between moisture content.The silicone hydrogels may be obtained by polymerizing a monomer mix containing a plurality of monomers, wherein the monomer mix comprises about 30 to about 98% by weight of at least one type of silicone monomer which is, and about 1 to about 50% by weight of at least one type of non-silicone type (meth)acrylamide monomer containing two or more hydroxyl groups within a molecule; wherein the weight percents are based upon the total amount of monomer components and polymer components in the monomer mix.
Owner:JOHNSON & JOHNSON VISION CARE INC
Method of making silicone hydrogel contact lenses
Owner:ALCON INC
Tris(trimethyl siloxyl)silane vinylic monomers and uses thereof
The invention provides a TRIS-containing vinylic monomer which comprises one sole (meth)acryloyloxy group and a tris(trimethylsiloxy)silyl group covalently linked to the ethylenically-unsaturated group through a polyoxyethylene linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from a TRIS-containing vinylic monomer of the invention. In addition, the invention provides a method for making a TRIS-containing vinylic monomer of the invention.
Owner:SHIN ETSU CHEM IND CO LTD +1
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