PRODUCTION OF OPHTHALMIC DEVICES BASED ON PHOTO-INDUCED STEP GROWTH POLYMERIZATION
申请人:Medina Arturo Norberto
公开号:US20110269869A1
公开(公告)日:2011-11-03
The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.
[DE] HOCHTRANSPARENTER KUNSTSTOFF FÜR OPTISCHE MATERIALIEN<br/>[EN] HIGHLY TRANSPARENT PLASTIC FOR OPTICAL MATERIALS<br/>[FR] PLASTIQUE HAUTEMENT TRANSPARENT POUR MATERIAUX OPTIQUES
申请人:ROEHM GMBH
公开号:WO2004041775A1
公开(公告)日:2004-05-21
Die vorliegende Erfindung betrifft Mischungen, die A) Verbindungen der Formel (I) und (II), worin R1 jeweils unabhängig voneinander Wasserstoff oder einen Methylrest, R2 jeweils unabhängig voneinander einen linearen oder verzweigten, aliphatischen oder cycloaliphatischen Rest oder einen substituierten oder unsubstituierten aromatischen oder heteroaromatischen Rest und m und n jeweils unabhängig voneinander eine ganze Zahl grösser gleich 0 mit m + n > 0 bedeuten, und B) mindestens ein von den Verbindungen der Formel (I) und (II) verschiedenes, ethylenisch ungesättigtes Monomer (A) enthalten. Weiterhin betrifft die vorliegende Erfindung auch Verfahren zur Polymerisation dieser Mischungen, die auf diese Weise erhältlichen hochtransparenten Polymere sowie deren Verwendung.
Production of ophthalmic devices based on photo-induced step growth polymerization
申请人:Medina Arturo Norberto
公开号:US20080143958A1
公开(公告)日:2008-06-19
The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.
PREPOLYMERS SUITABLE FOR MAKING ULTRA-VIOLET ABSORBING CONTACT LENSES
申请人:Domschke Angelika Maria
公开号:US20110063567A1
公开(公告)日:2011-03-17
The invention provides a class of actinically-crosslinkable silicone-containing prepolymers which comprise (1) ethylenically-unsaturated groups and (2) UV-absorbing polymeric units, latent UV-absorbing polymeric units, and/or dual photo-functional polymeric units. The prepolymer of the invention can be used to prepare silicone hydrogel contact lenses capable of absorbing UV/visible radiation. 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.
METHACRYLATE-BOUND PHOTOISOMERIZABLE CHROMOPHORE, METHODS FOR ITS SYNTHESIS
申请人:SHIPWAY Andrew N.
公开号:US20110137064A1
公开(公告)日:2011-06-09
The invention discloses novel dicyanostilbene derivatives bound to a methacrylic moiety that can serve as an active chromophore in a 3-dimensional optical memory, processes for its synthesis and its intermediates.