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US 4,365,050 AGranted
Amino-polysaccharides and copolymers thereof for contact lenses and ophthalmic compositions
OwnerEdward J. Ivaniinventor
Life of this patent
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Abstract
Aminopolysaccharides and copolymers thereof, primarily those of N-acetyl-D-glucosamines and derivatives and various monomers, is described.
Claims7
A polymeric composition formed from D-glucosamine or derivatives thereof selected from the group consisting of N-acetyl-D-glucosamine, substituted N-acetyl-D-glucosamine, derivatives of N-acetyl-D-glucosamine and graft and block polymers of N-acetyl-D-glucosamine, and a compound selected from the group consisting of a silicone, collagen, acrylonitrile, acrylamide, methacrylate acids and esters, alkylaminoalkyl methacrylate and hydroxyalkyl methacrylate and pyrrolidone and derivatives of pyrrolidone.
Dependencies are inferred from the claim text.