Abstract: This invention relates to polymers and hydrogels of polymers formed from a hydrophilic monomer of the group of dihydroxyalkyl acrylates and methacrylates, a substantially water insoluble monomer from the group of alkyl acrylates and methacrylates and preferably a minor amount of a water insoluble epoxidized alkyl acrylate or methacrylate. The hydrogels are preferably used for the formation of contact lenses, but may also be used for drug and pesticides delivery devices: dialysis, ultrafiltration and reverse osmosis membranes; implants in surgery and dentistry, and the like.
Type:
Grant
Filed:
May 13, 1976
Date of Patent:
November 1, 1977
Assignee:
Corneal Sciences, Inc.
Inventors:
William L. Mancini, Donald R. Korb, Miguel F. Refojo
Abstract: This invention relates to copolymers and hydrogels formed by copolymerization of a hydrophilic monomer from the group of dihydroxyalkyl acrylates and methacrylates and a substantially water insoluble monomer from the group of alkyl acrylates and methacrylates. The preferred copolymer of the invention is formed from methyl methacrylate and glyceryl methacrylate (2,3-dihydroxypropyl methacrylate). The hydrogels of the invention have unique physical and physiological properties which are particularly useful for the formation of contact lenses, particularly contact lenses having a relatively thin cross-section, though they may also be used for other purposes such as drug and pesticides delivery devices, dialysis, ultrafiltratiaon and reverse osmosis membranes, implants in surgery and dentistry and the like.
Type:
Grant
Filed:
March 18, 1974
Date of Patent:
May 18, 1976
Assignee:
Corneal Sciences, Inc.
Inventors:
William L. Mancini, Donald R. Korb, Miguel F. Refojo