Ocular lens composition and method of formation
A gas permeable (GP) ocular lens composition and method of formation are disclosed wherein 98-70% by wgt. of a first polymer component, selected for desired characteristics including gas permeability, and 2-30% by wgt. of a second polymer component, selected for basic GP lens characteristics such as...
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| creator | WILLIAM L STURM DAVID S. SOANE HENRY F RUGGE DONALD R INGENITO |
| description | A gas permeable (GP) ocular lens composition and method of formation are disclosed wherein 98-70% by wgt. of a first polymer component, selected for desired characteristics including gas permeability, and 2-30% by wgt. of a second polymer component, selected for basic GP lens characteristics such as rigidity, structural stability and desired refractive index, are combined in an interpenetrating polymer network (IPN) structure forming a thermoplastic composition having optical clarity/compatibility and facilitating low cost formation by molding or thermoforming. The first polymer component is a block co-polymer from first and second monomers. The resulting lens composition has a flexure modulus in the range of about 2,000-50,000 psi; preferably about 5,000-40,000 psi; and more preferably about 20,000-40,000 psi. In one embodiment, the lens comprises a central portion and an annular portion of different characteristics. In another cosmetic embodiment, a film with an image of an iris is encapsulated in the composition. |
| format | Patent |
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SOANE ; HENRY F RUGGE ; DONALD R INGENITO</creatorcontrib><description>A gas permeable (GP) ocular lens composition and method of formation are disclosed wherein 98-70% by wgt. of a first polymer component, selected for desired characteristics including gas permeability, and 2-30% by wgt. of a second polymer component, selected for basic GP lens characteristics such as rigidity, structural stability and desired refractive index, are combined in an interpenetrating polymer network (IPN) structure forming a thermoplastic composition having optical clarity/compatibility and facilitating low cost formation by molding or thermoforming. The first polymer component is a block co-polymer from first and second monomers. The resulting lens composition has a flexure modulus in the range of about 2,000-50,000 psi; preferably about 5,000-40,000 psi; and more preferably about 20,000-40,000 psi. In one embodiment, the lens comprises a central portion and an annular portion of different characteristics. In another cosmetic embodiment, a film with an image of an iris is encapsulated in the composition.</description><edition>5</edition><language>eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; CONTACT LENSES ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; METALLURGY ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PHYSICS ; SPECTACLES ; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>1995</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950103&DB=EPODOC&CC=AU&NR=7110894A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950103&DB=EPODOC&CC=AU&NR=7110894A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WILLIAM L STURM</creatorcontrib><creatorcontrib>DAVID S. SOANE</creatorcontrib><creatorcontrib>HENRY F RUGGE</creatorcontrib><creatorcontrib>DONALD R INGENITO</creatorcontrib><title>Ocular lens composition and method of formation</title><description>A gas permeable (GP) ocular lens composition and method of formation are disclosed wherein 98-70% by wgt. of a first polymer component, selected for desired characteristics including gas permeability, and 2-30% by wgt. of a second polymer component, selected for basic GP lens characteristics such as rigidity, structural stability and desired refractive index, are combined in an interpenetrating polymer network (IPN) structure forming a thermoplastic composition having optical clarity/compatibility and facilitating low cost formation by molding or thermoforming. The first polymer component is a block co-polymer from first and second monomers. The resulting lens composition has a flexure modulus in the range of about 2,000-50,000 psi; preferably about 5,000-40,000 psi; and more preferably about 20,000-40,000 psi. In one embodiment, the lens comprises a central portion and an annular portion of different characteristics. In another cosmetic embodiment, a film with an image of an iris is encapsulated in the composition.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>CONTACT LENSES</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</subject><subject>METALLURGY</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PHYSICS</subject><subject>SPECTACLES</subject><subject>SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND3Ty7NSSxSyEnNK1ZIzs8tyC_OLMnMz1NIzEtRyE0tychPUchPU0jLL8pNBInzMLCmJeYUp_JCaW4GeTfXEGcP3dSC_PjU4oLE5NS81JJ4x1BzQ0MDC0sTR2PCKgCP5io8</recordid><startdate>19950103</startdate><enddate>19950103</enddate><creator>WILLIAM L STURM</creator><creator>DAVID S. SOANE</creator><creator>HENRY F RUGGE</creator><creator>DONALD R INGENITO</creator><scope>EVB</scope></search><sort><creationdate>19950103</creationdate><title>Ocular lens composition and method of formation</title><author>WILLIAM L STURM ; DAVID S. SOANE ; HENRY F RUGGE ; DONALD R INGENITO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU7110894A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>CONTACT LENSES</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</topic><topic>METALLURGY</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PHYSICS</topic><topic>SPECTACLES</topic><topic>SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>WILLIAM L STURM</creatorcontrib><creatorcontrib>DAVID S. SOANE</creatorcontrib><creatorcontrib>HENRY F RUGGE</creatorcontrib><creatorcontrib>DONALD R INGENITO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WILLIAM L STURM</au><au>DAVID S. SOANE</au><au>HENRY F RUGGE</au><au>DONALD R INGENITO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Ocular lens composition and method of formation</title><date>1995-01-03</date><risdate>1995</risdate><abstract>A gas permeable (GP) ocular lens composition and method of formation are disclosed wherein 98-70% by wgt. of a first polymer component, selected for desired characteristics including gas permeability, and 2-30% by wgt. of a second polymer component, selected for basic GP lens characteristics such as rigidity, structural stability and desired refractive index, are combined in an interpenetrating polymer network (IPN) structure forming a thermoplastic composition having optical clarity/compatibility and facilitating low cost formation by molding or thermoforming. The first polymer component is a block co-polymer from first and second monomers. The resulting lens composition has a flexure modulus in the range of about 2,000-50,000 psi; preferably about 5,000-40,000 psi; and more preferably about 20,000-40,000 psi. In one embodiment, the lens comprises a central portion and an annular portion of different characteristics. In another cosmetic embodiment, a film with an image of an iris is encapsulated in the composition.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONTACT LENSES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Ocular lens composition and method of formation |
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