Hydrophilic gel polymers of vinyl pyrrolidone and hydroxyl alkyl methacrylate
Abstract
Abstract A PLASTIC OR RESIN PRODUCT IS OBTAINED BY MIXNG A COMMINUTED PYRROLIDONE SUCH AS POLYVINYLPYRROLIDONE, AND OPTIONALLY MODIFIERS AND ADDITIVES SUCH AS ORGANIC METHACRYLATES, AND OPTIONALLY CROSSLINKING AGENTS, ND OPTIONALLY CATALYSTS, AND CAUSING POLYMERIZATION TO TAKE PLACE THE INVENTIVE PRODUCT IS INSOLUBLE IN WATER BUT IS HYDRATABLE WITH WATER, DEPENDING UPON THE PROPORTIONS OF THE ABOVE MENTIONED COMPONENTS, AND MAY TAKE UP IN ITS STRUCTURE AS LITTLE AS 5% BY WEIGHT OF WATER TO AS HIGH AS 90% BY WEIGHT OF WATER. THE INVENTIVE HYDRATED PRODUCT IS OPTIONALLY TRANSPARENT, TRANSLUCENT, OR OPAQUE, AND PRODUCED IN ANY SHAPE OR SIZE, DEPENDING ONLY ON THE MOLD IN WHICH IT IS CAST. THE TRANSPARENT PRODUCT IS ESPECIALLY SUITABLE FOR CONTACT LENSES. THE TRANSLUCENT AND OPAQUE PRODUCTS MAY BE FABRICATED INTO MEMBRANES WITH PORE SIZES THAT CAN BE MADE SELECTIVELY, OR CAST INTO USEFUL SHAPES AND FOR OTHER USES.
Inventors
- 👤 M Seiderman
Bibliographic Details
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