LOW POLYDISPERSE HEMA COMPOSITION

PROBLEM TO BE SOLVED: To provide a poly-HEMA composition having a specific molecular weight range and a specific polydispersity. SOLUTION: The composition comprises a poly-HEMA having a peak molecular weight of about 25,000 to about 100,000, preferably about 25,000 to about 80,000, and a dispersity...

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Bibliographische Detailangaben
Hauptverfasser:	MOLOCK FRANCK F, KINDT-LARSEN TURE, SORENSEN JENS-ERIK, STEENSTRUP FREDERIK RESEN, WOLFF PER, ROSSIGNOL HELENE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a poly-HEMA composition having a specific molecular weight range and a specific polydispersity. SOLUTION: The composition comprises a poly-HEMA having a peak molecular weight of about 25,000 to about 100,000, preferably about 25,000 to about 80,000, and a dispersity of less than about 2 and less than about 3.8, respectively, and having at least one crosslinkable functional group conjugately bonded thereto. Also provided are a low polydisperse poly-HEMA suitable for fabricating a crosslinkable prepolymer, a method for forming the crosslinkable prepolymer by functionalizing and purifying the polydisperse poly-HEMA, a viscous solution fabricated from the crosslinkable prepolymer, a hydrogel fabricated from the viscous solution, and products fabricated from the crosslinkable polymer, the hydrogel and the viscous solution. COPYRIGHT: (C)2010,JPO&INPIT